MLB 9 Innings 21 Wiki

MLB 9 Innings 21 Wiki

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  • Category: Games
  • Last Updated: 2021-07-28
  • New version: 6.0.7
  • File size: 946.30 MB
  • Compatibility: Requires iOS 10.0 or later. and Android 4.4. KitKat or later

MLB 9 Innings 21


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MLB 9 Innings 21 is an iPhone and Android Games App, made by Com2uS Corp.. Today, it has gone through many interations by the developers - Com2uS Corp., with the latest current version being 6.0.7 which was officially released on 2021-07-28. As a testament to the app's popularity or lack thereof, it has gathered a total of 33507 Reviews on the Apple App Store alone, with an average user rating of 4.4 out of a possible 5 stars.

Video Manual: How to Use the MLB 9 Innings 21 App

How does it Work?

Enjoy major league baseball game in your palms! MLB 9 Innings 21

9 Innings selected by Mike Trout and Cody Bellinger, our cover players from both leagues!

Experience thrilling matches in 2021 with MLB 9 Innings 21!

MLBAM, MLBPA Official Licensed Mobile Major League Baseball Game!

◈ Game Features ◈

# An exhilarating baseball experience! Major League Baseball on mobile!

- The in-game UI has been renewed for the '21 season, and the latest team logo, uniform, stadium, etc. have been applied

- Approximately 2,000 MLB star players realistically implemented in full 3D graphics

- The stadiums of 30 teams with vivid audience cheering perfectly reflected

- Approximately 600 different types of hitting & pitching forms perfectly implemented for each player!

# New Black Diamond Cards!

- Acquire Black Diamond EXP to upgrade your players!

- Additional effects, such as Legend Skill, Bonus Grade Increase Amount, and Special Training Expansion have been applied!

- Upgrade your players now to make the new Black Diamond Cards!

# New League Master Mode

- Another content to create the best team!

- The highest difficulty League Mode!

- Challenge yourself to the Master Mode, and get the new Stats Amp Ticket!

- You'll be able to get Vintage/Prime Cards when you win the league!

# UI Renewal

- The in-game UI has been renewed for the '21 season!

Play MLB 9 Innings 21 with improved game environment!

# Enjoy endless contents!

- Real-time battle! Compete in a 3-inning match in real-time!

- Conquer League Mode to dominate the World Series!

- Find the best players through dynamic Ranked Battle!

- Join the fierce competition among other MLB 9 Innings players worldwide in Clutch Hits Mode!

- Test your skills in a 45-second batting competition in our Arcade Mode!

# New mentor system to make your team stronger!

- Register mentor players to activate the mentor effect!

- From increasing players stats to weakening the opponent's skills! Apply a total of 20 level effects!

Major League Baseball trademarks and copyrights are used with permission of Major League Baseball. Visit

Officially Licensed Product of MLB Players, Inc. MLBPA trademarks, copyrighted works and other intellectual property rights are owned and/or held by MLBPA and may not be used without the written consent of MLBPA or MLB Players, Inc. Visit, the Players Choice on the web.

Device App Access Permission Notice

▶ Notice per access permission

Access permissions are requested in order for us to provide you with the following service when you use the app.



[Optional Access Rights]

- Camera: This is the right to request when using the camera in the in-game profile.

- Photos: This is the right to request when uploading photos from your device to the in-game profile.

- Push Notification: This is the right to request when you want to receive push messages for the game.

- ID for Advertisers: This is the right to request the use of ID for Advertisers (IDFA) for promotion targeting and tracking analysis.

※ Please note that you can still enjoy the service excluding features related to the above without giving access permissions.

▶ How to remove access permissions

You can always change access permission settings whenever you'd like.

- Device Settings> Select the corresponding app> Choose either to enable/disable access

Consumer Information:

Supports multiple languages: 한국어, English, 日本語, 中文简体, 中文繁體, Español.

Items are available for purchase in this game.

For Com2uS Mobile Game Terms of Service, visit

Terms of Service :

Privacy Policy :

For questions or customer support, please contact our Customer Support by visiting

Visit for tips and news about the game!

1 Contributions

  • On Oct 29}

    cant play

    it is a great game but with their last update they have locked a lot of players out. cant play thru an emulator anymore. for those of us with not so great eye sight it is a slap in the face.

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    Top Reviews

    • By Defaultforlife

      Best baseball game out there

      Hi my name is default and I have been playing this game for 3 years but I stopped for a while until I picked up the game back in October of 2020. I am here to make a review on the game and overall it earned a 5 star or very close to it, the reason being that the game is sooo much fun and there are so many things to do. I love all the features of club battle ranked battle friend battle and league mode they are so fun. The only problem of the game is maybe the RNG the reason being that one second I get a prime player(these are very rare) and then I don’t get one for another month and yes I know there are percents that go into the game but the only other thing I can think of is that they are selling sig change tickets for $100 and I think that is a little over priced for someone to sig change their favorite player and I hope com2us see’s this and lowers the price or puts one In an event. Oh and while I’m talking about events I wanted to say they are the best I loved the off-season ones because they give GI tickets( these make gold players diamond) and they are very rare. Overall I love the game and for the people that quit the game after a week of not improving you should not do that it took me a while to get from 80ovr to where I’m at 94 ovr. Thanks for everything and enjoy the best baseball game on the app 😁😁😁

    • By PapasCrew

      I love baseball

      I love baseball. I have read a couple of reviews on this game. The guy from the Bay Area said it perfectly. This game is simple. Very easy to play, but yet not so simple you get bored. The only gripe I have for this game is that the rewards are awful. I been playing non stop for over a year now and have only received 1 prime player and one signature player both of which were silver players. Every diamond player I have I have received out of combination or packs have been players so low on the totem pole they never made it to my line up. The only way I can get any of my players I love and have worked hard to upgrade, to diamond is to pay $100 for the diamond up grade. I find this to be a bit unfair for the diehard players that aren’t willing to blow $100 dollars on the game. I have dropped money on this game, but I’m not willing to drop $100 to upgrade a single player. The diamond upgrade ticket should at least be added to the season rewards for later seasons. Either that or make it easier to earn diamond players, so we have an easier time trying to find our favorite players in diamond grade. Either way. I personally would be willing to put more money into this game if I saw that the developers weren’t just trying to makes big money grabs and were actually here to make the game more enjoyable for its fans.

    • By Kayci Kim

      Love the game

      As a PC gamer, I don’t have many options to play MLB games. And as a result, I’m “stuck” with playing baseball games on my iPhone. The RBI series available on the iPhone is absolute garbage, and many other MLB-licenses games on the IOS were mediocre at best. Until landed on this beauty. Have to say, this is probably the closest I’ll get to playing games similar to MLB the Show on the PlayStation, or the now defunct MLB2K series. The gameplay in 9 Innings is smooth, and there is enough content here to keep me busy. The games are engaging and the rewards are fair. But what I love about this game is the fact that it has MLB and the MLBPA’s backing, which allows the use of real players and stats. But like all games, there are a few issues with 9 Innings. First, as a Tribe fan, I have to bring up the glaring fact that Francisco Lindor’s batting stance in the game is WAY OFF. That’s not his batting stance. Com2uS, please, I beg you, fix this. We’re talking about easily one of the best players in the game, and you guys have butchered his batting stance. And speaking of best players in the game, what is up with Trout’s face? He looks constipated. Every time Trout comes up to bat, he looks like he needs to run to the restroom. And the body? He looks overweight. Trout is the face of the game - please redo his skin.

    • By balloon catcher

      This game is the Best ❤️💙💚 Baseball Download this app!!!

      This game is really great I love to play League Mode, Ranked Game, Friend Battle, PvP Battle, Arcade Mode, Clutch Hits Mode, Pick ‘Em Battle, and Club Battle this game is better than other baseball games trust me. The only problem I had is to buy stuff everything is too expensive so I rather you not to buy anything with your money only buy stuff with points and stars. They could fix a little problem with training a player because it’s just way too hard and they need to send more packs but overall they still are a 10/10 for me so download this app and yea just download it and you’ll love it maybe at the beginning it seems weird and hard and you don’t have good players but once you open packs then you can build your team to become better and better. The start of your team is all Normals then later you can get other players above normal the players stats are based on player and skill and type. The types are Normal, Bronze, Silver, Gold, then Diamond. Diamond is the best even better than gold if you get a Diamond put it on your team so yea download the app!❤️🧡💛💚💙💜🖤🤍🤎😃😄😄😆😚😋😛😜😙😗😉😌🤪. Stay safe and wear masks and social distance. 😷.

    • By Redfive84

      Best baseball app but a few minor flaws

      Out of all the mlb baseball games in the App Store that I’ve played this, IMO, is the best there is. It has many different modes and the controls are excellent. The batting physics r very well done plus the player and stadium graphics are great especially given the fact this is a mobile game. Of course there are a couple things that need improvement. Season games in career mode are extremely easy. It’s very to score 20+ runs in a games even with hard difficulty. Also the player cards need to be updated. There are apparently vintage MLB player cards however, I think in order to get any they need to be purchased with micro transactions. Even then I’ve never come across another person who had those cards. Clubs (a.k.a. Guilds) are a good addition and has potential but it seems to be forgotten by developers. Lastly upgrading a player card has a random roll where the upgrade could fail. I feel this is just a blatant ploy to encourage people to buy star packages because buying a card upgrade with stars is a 100% guarantee. Even with the problems this game is very well done and fun to play. Ive been playing for about a year now and still find it extremely entertaining.

    • By subtleboom

      A long time com2us fan

      As a fan that has loved com2us’ easy flow baseball games for around 3 years now, I can tell you that the games are highly enjoyable for any baseball video game fan that needs to get their fix somewhere besides at home. However, with any virtual game, competition always arises and when it does so in this game, I am disappointed. Not about the ranked play or H2H battles against a friend, but about the competition against the house. I have been playing this game for a good 3 months now and I can tell you first hand that if you want a solid team that can compete with other skilled players or even the advanced cpu in the future seasons, you will have to spend every waking second playing, or cough over a lot of money through small transactions. As an avid fan, I would love nothing more than to see the interactive free agency and trading block be added back. It gave another dimension to the game that made you feel even more immersed. But overall, my largest problem and the thing that makes me want to delete the game sometimes, HAS to be the percentages at which you do get a good player through opening packs or when attempting to buy a free agent. It is very disheartening to learn that I have literally 1/100 chance of getting a high level player and I had to open 70 packs before my first one. Please make the game fun, like it was intended to be. Baseball is already a slow enough sport, dont slow down the one opportunity people get to control their own team.

    • By 090681

      Invalid Master League Data…?

      So, I’m a relatively devoted player of this game. Matter of fact, this is actually the ONLY game I play on my phone. A week ago I would have easily given 5 stars. However since the latest “update”, I can’t get through a single Master League game without being told I have invalid master league data, and promptly being kicked out of the game and sent to the main lobby of the game. So far, this, what I’ll generously refer to as a bug, has cost me roughly $150-$200 in stars wasted not to mention numerous home run, rbi etc. losses because it ONLY kicks me off directly after I swing the bat. I understand bugs take a little bit of time to identify and fix (2-3 days MAX), so I’m willing to be patient. These last 2 days of me playing this game has been mostly hassle, along with a huge waste of time and my money. I surely hope that your company “Com2Us” will be not only compensating users losses both actual financial losses, but also offering a “sorry” package to your dedicated game players. That would be the right, and moral thing to do. Personally, I will no longer play this game again if “Com2Us” doesn’t make some type of outreach and attempt at replacing what the bug in your game took from me. And I’ll shout it from the rooftops to anyone who will listen about this particular situation, and I know from reading your Facebook page that I am just one of MANY of your customers who have been experiencing the same problems.

    • By floyd 5712

      Bad mechanics and costly

      I can live with league mode, I can live with battle mode, but holy smokes pvp is terrible. It’s a total crap shoot if you win or not and on top of that you have “strategy cards” which basically give you runs and outs. You can only use one reliever which at first sounds reasonable because the games are only three innings but when you bring one in a rally starts congrats you can’t stop it because you’re pitcher becomes exhausted and you really can’t actually control where you’re pitch is going to go. Not to mention you can’t even control if you get a hit or not. The most you can do is be on time and pray. The strategy cards don’t make it easier either because you could be perfectly on time with it but since the opponent used a guaranteed ground ball card you got screwed out of a hit. All this leads me to my main point/complaint. THE PLAYER HAS VERY LITTLE TO NO CONTROL OVER THE GAME! The only reason it’s even getting three stars is for league mode and battle mode being somewhat playable. Another thing I thought of just now and my final issue is that it is incredibly hard to get diamonds unless you sink a lot of money in to it. The game isn’t exactly budget player friendly. I’ve played the game for 4 months and I have only three diamonds and not very good ones at that. So I’m conclusion the game has much potential but bad game mechanics and being costly to form a good team prohibit it from becoming truly great.

    • By cjk85

      Absolutely amazing game (BUT)

      This game was so much fun and absolutely fantastic! When i first started playing I couldn’t put my phone down it was that much fun. But after spending a $1000 dollars plus since June and still only being a 91.3 overall i’m starting to get very frustrated. I spent $100 dollars on gold and there’s a bundle and you get 10 Premium pack and one Gold pack for 2600 gold. Sounds like a great deal right? Nope i opened up two of these bundles, And i only received four gold players the gold packs guarantees you a gold. So actually i only received two gold cards out of 20 Premium packs not one diamond, prime or signature card forget about getting a signature it’s impossible. And this isn’t sour grapes I’m spending real hard earned money and getting silver card it gets old fast. Also the combination needs to be fixed that’s completely broken and worthless to use. If you put two diamonds and two golds into a combination and the highest overall i see is an 83 it’s not fair. I use to love this game but it’s starting to become boring and i feel like it is a pay to play type of game. I think i spent a good amount of money already!! I can’t spend hundreds a week i do have bills and a real life. I would definitely recommend this game I’m very disappointed and frustrated. Hope next season we can sell players and open up better opportunities for players to make there team better.

    • By Mas Merchant

      Fun game for playing realistic baseball; PLEASE ADD TRADING!!!

      SO SO close to being 4-5 Stars! I really love this game as a great way to pass the time, and I have a lot of fun opening packs and doing combos with my little brother. League mode and ranked in particular are, for the most part, very evenly matched and a fun challenge. I hear a lot of complaints about the rate at which “good” or high-grade players are acquired from packs and through combos. I’ve been having good luck so far, and while I don’t expect it to continue, I’d tend to say these complaints are exaggerated. I was really glad to see a prime combo added, and mentor and club challenge also adds a fun aspect to the game. One thing that’s been on my mind for years and would get this game an automatic 5-Star rating: PLEASE PLEASE PLEASE add a trading feature to the game!!! I have a diamond Kershaw with boss skills, but I’ve also got a Kershaw prime that’s arguably the best in the game... I know other players would love my prime Kershaw and I’ve got no use for it - just one of many many examples. Trading would add a super realistic, strategic aspect to the game that I know would appeal to a wide variety of other gamers as well. I realize the difficulties, but PLEASE consider 😁 Overall - really fun game for playing realistic baseball and collecting your favorite players to build a MLB dynasty; adding a trading feature would make this into the greatest game ever!

    • By thawjs88

      This could very easily be a five star review

      This is honestly one of the one of my favorite games of all time for a mobile device. However, recently the The programmers must have recently parentheses within six months and parentheses change the algorithm in regards to gift boxes(gifts at end of game) and they deafly also change the arcade mode to be a lot harder. I’ve been playing this game since it first came out I believe it was I don’t know exact date but the year of 2014 I believe and I have still yet to draw from a team select pack Boston Red Sox a prime player and I in that time. I’ve only received one diamond Boston Red Sox player from a team select pack. This is very sad because they’re gonna lose a lot of customers and players the reason why I believed in my opinion they have decreased the odds of receiving a good gift or a good card is because all they want you to do is spend money to obtain the good cards and trust me I’ve spent a lot of money on this game(thousands). They offer a $100 team select signature pack player about twice or three times per year within this year I purchased that three times and received the same exact identical card so basically duplicates and Allah I’ll show you the message that I received from the app. Com2us response after blowing 100 bucks...

    • By Fhlynn

      Horrible odds

      Been playing this game for about 3 months now. I have almost completed 1 full season. The gameplay is smooth, the drama is there, and the graphics are great. The problem lies in getting better players. I have opened 100 of packs all ranging from the lowest to the gold player level (never had a diamond player pack). I keep combining, combining, earning packs, and combining...and all I ever get are at best silver players. I do all the extra events I can ( clutch hits, arcade ranked battle etc ) and I have ever only gotten 1 diamond relief pitcher which wasn’t even average. I currently have only 2 gold hitters and 2 gold pitchers. The rest are bronze and silver. What gives if you can’t increase your team ability then what’s the point? UPDATE: now almost finished my second season and still the drop rates for better players are ridiculous. RNG systems are atrocious. Some players do less, spend less, and still get better players than I do play bc every mode daily and doing multiple seasons. I even bought a few of the store items I can afford and still playing mg with 5 total gold players and 1 above average diamond pitcher. I’m almost to the point where I am going to stop bc it takes so much time and effort to only increase your teams overall by a mere point of a percentage. Dishearteningd

    • By Panic316


      . First off, fun game, great graphics, you even get a line up where the team you pick has actual real players on the team. Insanely expensive for what you get. And you pretty much need to pay if you want to level players to anything but basic rarity. They have bundles where your charged $50 for a player pack that offers a 1% chance of getting the highest grade card (diamond), so your basically throwing $50 in the trash. I may be olds school but, I believe that if you spent money on something you should receive something of at least equal value. For the record, they have a spread sheet that gives you the odds of what can be drawn, so at least your informed of the crappy odds before investing. Another way of obtaining players is through an auction which is cool, but they actually charge you a 5% rake if you have a losing bid, so in essence they are duping you out of virtual currency as well. If you wish to play the game more the just casually your going to be disappointed. There are just to many paywalls standing between you and the ability to field a high level team. If you do decide to keep it casual it’s a good baseball game, on point with something you’d play on a console. Update: 2 months in and my opinion is reinforced. Total cash grab. Everything revolves around taking your money. Gets boring after a few weeks but your forced to stay because you unfortunately spent money. Ugh

    • By Astaafosho

      Feels completely rigged

      This game along with most others I've played before seem to be mostly about money. They also come off being completely rigged. That’s basically handicapping the game and cheating the game system to give an advantage to the opposition. That’s completely unfair and technically should get sued for it. In this baseball game, I’ve had 20 plus wins in a row and start off undefeated. After a win streak, I’ve had so many unnecessary loses that make little to no sense at all. I lose to teams who’s records are absolutely terrible and I’ve had very good diamond players against awful teams so players stats don’t mean anything at all because when the game is being swayed automatically, it’s useless to even bother trying. I just attempted playing a game and tried many different methods to figure out why it may have been doing it and I intentionally threw balls right at the player to let the team get many runs above me. After getting blown out by 10 + runs, they automatically started swinging at pitches around their face and feet. I even threw some pitches that hit the players and right after sometimes they’d swing many times in a row at blatant balls that no player would ever swing at in a real game even while being high and or drunk. The game is massively flawed and it definitely comes off being completely rigged. It’s an addicting game that had potential but like most others it’s just annoyingly handicapped and a money grabber.

    External Links

    Com2uS Corp.' Official Website

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    This page was last edited on 2021-07-28.
    Content is available under CC BY-NC-SA 3.0 unless otherwise noted.
    MLB 9 Innings 21 content and materials are trademarks and copyrights of Com2uS Corp. or its licensors. All rights reserved.
    This site, Mycryptowiki, is not affiliated with Com2uS Corp..

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