Comparison

ReTrader vs Penn Mobile

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Trade historical financial events
  • Simulate market movements
  • Analyze profit/loss
  • Global trading competitions
  • Weekly analysis subscriptions
  • Leaderboard rankings
Read full description

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

About

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.

Highlights
  • Study room booking
  • Dining hall hours and menus
  • Course schedule access
  • Laundry machine availability
  • Fitness facility hours
  • Emergency services access
Features
Read full description

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

ReTrader4 screens
Penn Mobile4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ReTrader sells 10 one-off in-app purchases. Penn Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
ReTrader versus Penn Mobile: the parameters behind the verdict, then further details
ParameterReTraderPenn Mobile
PriceFreeFree
Rating3.0 (2 ratings)4.6 (410 ratings) — better
Positive reviews81.8% of reviews — better52.6% of reviews
Number of ratings2410 — better
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.6
Further details — not scored
Size36 MB31 MB
Age rating4+4+
DeveloperFintratech LimitedUniversity of Pennsylvania

Customer experience

ReTrader

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews11 reviews
Positive81.8%
Neutral0.0%
Negative18.2%

Penn Mobile

All ratings410 ratings
Positive89.3%
Neutral3.2%
Negative7.6%
Written reviews19 reviews
Positive52.6%
Neutral10.5%
Negative36.8%

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
Show 4 more
  • 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 more
  • Improve login persistence

In-app purchases

10 purchases

ReTrader

One-time10
  • ECB Interest Rate 2013$0.99
  • Fiscal Cliff 2012$0.99
  • Taper Tantrum 2013$0.99
Show 7 more
  • 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
None

Penn Mobile

No in-app purchases

Questions

Is ReTrader free?
ReTrader is free to download, with in-app purchases available.
Is Penn Mobile free?
Penn Mobile is free to download, with no in-app purchases.
Which has better reviews, ReTrader or Penn Mobile?
Penn Mobile is rated higher. ReTrader averages 3.0 out of 5 from 2 ratings, while Penn Mobile averages 4.6 from 410 ratings.
Do ReTrader or Penn Mobile have ads?
Neither ReTrader nor Penn Mobile shows ads.
Which is updated more often, ReTrader or Penn Mobile?
ReTrader ships an update every 2 months, and Penn Mobile every 4 weeks. Most recently, ReTrader was updated on July 26, 2026 and Penn Mobile on September 8, 2026.

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