MarketSim vs Axiom Trading
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MarketSim
Learn about the stock market and test trading strategies with a virtual stock game. Start with $10,000 virtual cash and place unlimited trades using live quotes and historical data. Monitor your portfolio with a beautiful and simple interface.
- Virtual stock market simulation
- Unlimited trading with $10,000 virtual cash
- Over 5000 tradeable symbols
- Live stock quotes and historical data
- Easy portfolio monitoring
- Beautiful and simple design
Read full descriptionHide full description
Real markets. Play money. Start with $10,000 in virtual cash and trade real stocks at real prices. Build a portfolio, try out an idea, and see how it does without risking any real money. TRADING • Buy and sell stocks with virtual cash at real market prices. • Trade by dollar amount or number of shares, including fractional shares. • Orders placed while the market is closed fill at the next open. • See every order you've placed in your order history. RESEARCH • Search for companies by name or ticker. • Browse the day's most active stocks, top gainers, and top losers. • View price charts, company profiles, and key stats. • Add stocks to your watchlist to keep an eye on them. YOUR PORTFOLIO • Follow your portfolio's value over time. • See shares, average cost, and total return for each holding. • See how each position contributes to your portfolio. • Dividends are paid and stock splits are applied automatically. MARKETSIM PREMIUM • Up to 10 portfolios, each with its own cash, holdings, and history. • Pick any starting balance from $1 to $1 billion for new portfolios. • Refresh quotes anytime with no cooldown. • No ads. MarketSim is a simulator for learning and entertainment. All trades, balances, and returns are simulated. Virtual cash has no monetary value and cannot be withdrawn. Nothing in the app is investment advice. Market data may be delayed or inaccurate, and simulated performance does not predict real investment results. Premium is an optional subscription that renews yearly until canceled. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thirdlinellc.com/#privacy-policy
Axiom Trading
This app connects to your brokerage account to provide AI-driven trading signals. Receive notifications for potential trades with detailed reasoning and manage risk with automated stop-losses. Practice with simulated funds before committing real capital.
- AI market scanning
- User-approved trade signals
- Automated stop-losses
- Paper trading mode
- Transparent trade reasoning
- Full trading history
Read full descriptionHide full description
Axiom connects to your own Alpaca brokerage account and runs an AI signal engine that scans the market all day. Nothing is bought without you. Every pick arrives as a notification with the reasoning behind it — symbol, size, entry price and stop — and waits for your decision. Swipe right to approve, left to skip. • Paper by default. Practise with simulated money before anything real is at risk. • A stop on every position. Each position opens with a stop-loss attached, and protective exits can sell automatically to manage risk. • Your brokerage, your money. Axiom never holds funds. Orders go to your own Alpaca account, and you can disconnect at any time. • Transparent reasoning. See why a pick was proposed, not just what was proposed. • Full history. Every signal, fill and exit is logged and reviewable. • Season pass and leaderboard. Earn XP for using Axiom and climb the board — ranked on activity, never on money. Plans: Signals, Trader and Trader Pro are monthly subscriptions available in the app through Apple. Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period, and can be managed in your App Store account settings. Terms of Use: https://axiomautotrade.com/legal/terms Privacy Policy: https://axiomautotrade.com/legal/privacy Axiom is a software tool. It is not a broker-dealer or an investment adviser and does not provide financial advice. Trading involves risk, including the possible loss of principal. Past performance does not guarantee future results.
Screenshots
Verdict
The clearest difference is monetization model: MarketSim at free with in-app purchases against Axiom Trading's subscription. MarketSim also leads on ratings volume (21K vs 1). Axiom Trading's advantage is ads (none vs shown) and review sentiment (100% vs 67%). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MarketSim sells 2 in-app purchases, starting at $19.99 per year and Axiom Trading sells 3 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.
Axiom Trading holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: MarketSim has 21K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of MarketSim's written reviews are positive against 100% of Axiom Trading's.
MarketSim ships an update every 2 months, Axiom Trading every 2 weeks. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.
| Parameter | MarketSim | Axiom Trading |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (21K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 21K — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 17 MB |
| Age rating | 12+ | 4+ |
| Developer | Third Line LLC | Zayd Bari |
Customer experience
MarketSim
Axiom Trading
Bugs and requests
MarketSim
Reported bugs
3 issues- Stocks randomly showing $0 value
- Crashes when trying to buy/sell certain stocks
- Incorrect stock split handling
Requested features
5 requests- Add ability to short stocks
- Implement stock splits and dividends
- Include more advanced order types
- Add portfolio tracking and analytics
- Expand stock selection to include more options
Axiom Trading
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MarketSim
- MarketSim Premium$19.991 Year
- Remove Ads$2.99
Axiom Trading
- Signals$24.991 Month
- AutoTrade$74.991 Month
- Trade Pro$179.991 Month
Questions
Is MarketSim free?
Is Axiom Trading free?
Which has better reviews, MarketSim or Axiom Trading?
Do MarketSim or Axiom Trading have ads?
Which is updated more often, MarketSim or Axiom Trading?
Other comparisons















