MarketSim

• Remove Ads — $2.99

Last verified 5 Sep 2026

4.6 20414 ratings · App Store

1. 4/5Glitches after stock splits

   Stem inc just had 20-1 reverse stock split after the split 2 days ago I had 20 shares then for some reason the next day it did another split and split my shares down to 1 but now I’m -95% on my investment and just lost 19 shares. I saw another review where a similar thing happened and he thought it was the sim trying to make him think he was doing better than he actually was but it was because Tesla did a stock split but since it wasn’t a reverse stock split it gave him shares instead of taking them away like for me. The only reason I don’t care as much is because I only had like 150 in that investment and even tho I lost 19 shares I’m still up 0.26% today (even tho I should be close to 1% gained but atleast I didn’t lose a bunch of money.) Best not to invest in a company that is doing a split on this sim as it doesn’t simulate it correctly.

   omfggivemeanicknamealr2 · 5 Sep 2026

2. 3/5Aesthetically pleasing simulator but has many glitches

   This application is really nice however has some glitches that make trading very annoying. Sometimes if you go to trade it shows that the company is at 0.00 and because of that your 10,000 you start with actually ends up going to a much lesser number based on shares literally as if the company dropped to 0.00. Although this may be annoying, it can be solved with multiple refreshes and when the reasonable amount of money comes up, then it can go back to normal. But what makes this issue a main issue is that sometimes when that happens, and by mistake you trade or sell a company then it glitches out and gives you a random number and you lose a large portion of your money. At that point I just have to re-download the app and start again which is frustrating especially when a lot of progress is made. This is the only prominent issue that makes it not that great of a simulator, but if this is fixed it would make this app very nice because the aesthetics of this app is very pleasing and also very sleek looking.

   Rohman M. · 5 Sep 2026

3. 1/5App No longer Working!

   UPDATE: as of 12 March 2020, this app still does not work for me. It always crashes within mere seconds of opening the app. If there is any support team that is able to help, it would be much appreciated! I had bought the ad free version a good while back, but now can’t even use it! It has been like this since July of last year for me. I don’t mind starting over, but I don’t want to lose my watch list. Please help! Since 3 July 2019 all the way up until today, 10 July 2019, the app has completely stopped working for me. It’s not that I can’t buy or sell; it’s that I can’t even open the app! As soon as I open the app, it almost immediately crashes, usually within a half second, sometimes lasting as long as two seconds. I cannot do anything about this and my balance was ~$130,000. I really don’t want to have to start over just in trying to troubleshoot the app! Please fix this, I’ve never had a problem with the app crashing other than maybe a couple random times up until July 3rd. Superseding that date, the app has been fully non-functional. I have an iPhone 8.

   Blackops1164 · 5 Sep 2026

4. 3/5Did the app just give me shares?

   This app has been really fun so far. however I’m a little bit worried that it is trying to make it seem like I’m doing better than I really am right now. I started of and invested 13,000 just a couple months ago, just recently that shot up to ~28,500 because of some Tesla shares I had. BUT originally I had only bought three shares of Tesla, then yesterday Tesla shot up and I had nine or maybe 7, so I sold 3 of them. lo and behold I log in today and I have 18! Now as far as I know there really isn’t any reason for this, and I’ve heard that sometimes simulators will do things to make it so you seem more successful in order to get you to invest in real stocks. Which makes me wonder if that is what this app is doing. Keep in mind this is only happening with Tesla, so it possible that Tesla may be paying this company to make them look good? I couldn’t say. Note: this is all before the scheduled Tesla stock split

   somebodywhocares2 · 5 Sep 2026

5. 4/5Account balance from $8,000+ to everything being $0.00(now sitting on 6mil+)

   I opened my account to hop on SOS and it wouldnt let me buy any stocks bc all my shares dropped to $0.00 along with my account balance i hope this is just a glitch that will fix soon. UPDATE: I'm now sitting on $6,359,156 all done by consistently trading high volatility stocks like TKAT, RHE, LEDS and EEIQ (just some examples) what i hate though is the delay... sometimes itll be on time but you have to constantly refresh its definitely not live paper money trading... and usually near the end of the trading day around 2:45-4 pm it becomes sooo lagged behind the actual market... there is no candlestick charts AND no graph for your portfolio, my gains are insane after all and id like to see them pictured on a graph... cmon marketsim youve been on the app store forever let the ppl see a portfolio graph

   noicei · 5 Sep 2026

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