ReTrader vs Zetamac Arithmetic Practice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReTrader
Simulate trading major historical financial events to understand market movements. Engage in short trading scenarios, compete on leaderboards, and gain insights from experienced traders. Subscribe for weekly analysis and mini-games.
- Trade historical financial events
- Simulate market movements
- Analyze profit/loss
- Global trading competitions
- Weekly analysis subscriptions
- Leaderboard rankings
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ReTrader allows users to trade major historic financial events exactly as they happened. ReTraders see first hand how markets moved and how they would have traded live, as the news unfolded. The App invites users to trade scenarios like the collapse of Lehman Brothers, Black Wednesday, or the release of major economic data, and you will be able to react to those events by buying or selling depending on whether you think the market will go up or down The objective of ReTrader is to help you understand how and why markets move, as each scenario is previewed and reviewed by an experienced trader, and you can at all times see the profit or loss of your positions. ReTrader condenses each scenario into short 3-5 minute simulations for you to engage with. Every time you play a game for the first time, we will record your score on a leaderboard where you can compare your performance to other users. ReTraders can enter into global trading competitions or use the APP to keep up-to-date with the current events by choosing to sign up to our subscriptions, which will give you our analysis in the form of mini-games on a weekly basis. If you have any questions, email us at: answers@retraderapp.com
Zetamac Arithmetic Practice
This app offers mental math practice tailored for quantitative finance professionals. It focuses on improving calculation speed and accuracy for complex numerical problems.
- Mental math practice
- Quantitative finance focus
- Calculation speed improvement
- Accuracy enhancement
- Numerical problem solving
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Zetamac - A mental math practice app used in the Quantitative Finance world.
Screenshots
Verdict
The clearest difference is rating: Zetamac Arithmetic Practice at 4.7 against ReTrader's 3.0. Zetamac Arithmetic Practice also leads on in-app purchases (none vs 10) and update cadence (daily vs every 2 months). ReTrader's advantage is iOS requirement (13.0 vs 17.5). On price, review sentiment, ads and device support 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. ReTrader sells 10 one-off in-app purchases. Zetamac Arithmetic Practice asks for nothing beyond the download.
Zetamac Arithmetic Practice holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Zetamac Arithmetic Practice has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 82% and 82% positive.
ReTrader ships an update every 2 months, Zetamac Arithmetic Practice daily. The most recent releases landed on July 26, 2026 and September 22, 2026 respectively.
| Parameter | ReTrader | Zetamac Arithmetic Practice |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.7 (18 ratings) — better |
| Positive reviews | 81.8% of reviews | 82.4% of reviews — better |
| Number of ratings | 2 | 18 — better |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 36 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Fintratech Limited | Joseph Ma |
Customer experience
ReTrader
Zetamac Arithmetic Practice
In-app purchases
ReTrader
- ECB Interest Rate 2013$0.99
- Fiscal Cliff 2012$0.99
- Taper Tantrum 2013$0.99
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- Flash Move 2010 - Available Soon$0.99
- Biggest equity move of 2014$0.99
- Swiss Remove FX Floor: EURUSD$0.99
- Swiss Remove FX Floor: GOLD$0.99
- Swiss Remove FX Floor: Swiss Stocks$0.99
- Russia and ECB - Sep 2014 - Dax$0.99
- 2 Month Subscription$14.99
Zetamac Arithmetic Practice
No in-app purchases
Questions
Is ReTrader free?
Is Zetamac Arithmetic Practice free?
Which has better reviews, ReTrader or Zetamac Arithmetic Practice?
Do ReTrader or Zetamac Arithmetic Practice have ads?
Which is updated more often, ReTrader or Zetamac Arithmetic Practice?
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