ReTrader vs Penn Mobile
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
Penn Mobile
Streamline your campus experience with essential tools for student life. Access study room bookings, dining hall menus and hours, course schedules, and laundry machine availability. Quickly find fitness facility hours and emergency services.
- Study room booking
- Dining hall hours and menus
- Course schedule access
- Laundry machine availability
- Fitness facility hours
- Emergency services access
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Study room booking, dining hall hours, course schedule, daily menus, laundry machine accessibility, fitness facility hours, and quick access to emergency services! Penn Mobile was designed by students in Penn Labs with the intention of making your school life simpler. What does this mean? No more carrying your laundry four floors up trying to find a laundry machine. No more hunting for dining hall hours on the web. And no more struggles trying to book a study room. You can now do it all at the press of a button. Enjoy!
Screenshots
Verdict
The clearest difference is rating: Penn Mobile at 4.6 against ReTrader's 3.0. Penn Mobile also leads on in-app purchases (none vs 10) and ratings volume (410 vs 2). ReTrader's advantage is review sentiment (82% vs 53%) and iOS requirement (13.0 vs 17.6). On price, 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. Penn Mobile asks for nothing beyond the download.
Penn Mobile holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Penn Mobile has 410 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 82% of ReTrader's written reviews are positive against 53% of Penn Mobile's, so the app with the better star average is not the one people write more warmly about.
ReTrader ships an update every 2 months, Penn Mobile every 4 weeks. The most recent releases landed on July 26, 2026 and September 8, 2026 respectively.
| Parameter | ReTrader | Penn Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.6 (410 ratings) — better |
| Positive reviews | 81.8% of reviews — better | 52.6% of reviews |
| Number of ratings | 2 | 410 — better |
| Update frequency | Every 2 months | Every 4 weeks — 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 | 17.6 |
| Further details — not scored | ||
| Size | 36 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Fintratech Limited | University of Pennsylvania |
Customer experience
ReTrader
Penn Mobile
Bugs and requests
ReTrader
Not enough reviews yet to summarise bugs or requests.
Penn Mobile
Reported bugs
9 issues- Unable to log in after Duo pop-up
- Cannot load dining halls or retail dining
- Unable to log in with PennKey
- App does not open after recent update
- App prompts to log in every time
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- App does not save login after exiting
- Pop-up message: "Couldn't connect to API"
- App crashes frequently
- Dining hall information is incorrect or not shown
Requested features
6 requests- Include fitness center hours
- Include building directory of campus
- Fix API connection issues
- Update app for better stability
- Fix login bugs
Show 1 moreShow fewer
- Improve login persistence
In-app purchases
ReTrader
- ECB Interest Rate 2013$0.99
- Fiscal Cliff 2012$0.99
- Taper Tantrum 2013$0.99
Show 7 moreShow fewer
- 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
Penn Mobile
No in-app purchases
Questions
Is ReTrader free?
Is Penn Mobile free?
Which has better reviews, ReTrader or Penn Mobile?
Do ReTrader or Penn Mobile have ads?
Which is updated more often, ReTrader or Penn Mobile?
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