Comparison

ReTrader vs App One

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
Features
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

App One

Read full description

App One is a student workspace that keeps your academic life in one place. ONE CALENDAR. Classes, exams, assignment due dates, and holiday changes all land on the same calendar - and it can find the times when you and your friends are free. COURSE SYNC. Connect Canvas and Gradescope once, and your courses, assignments, and grades stay in sync - with a live grade dashboard for every class. REGISTRATION PLANNING. Build and compare schedules before you commit, and keep track of what you still need to take. COURSEWORK TOOLS. New assignments ping your phone. Draft, check your answers, and watch your running grade update as scores land. EMAIL AND CHAT. Reach classmates and keep course threads together without leaving your workspace. App One serves students at MIT, Harvard, CMU, Stanford, and Wellesley, plus an open tier for everyone else. An account is required. Notifications keep you ahead of new assignments and reminders - and scheduled alerts fire on time even offline.

Screenshots

ReTrader4 screens
App One4 screens

Verdict

The call

The clearest difference is in-app purchases: App One at none against ReTrader's 10. App One also leads on update cadence (weekly vs every 2 months). ReTrader's advantage is iOS requirement (13.0 vs 16.4). 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. App One asks for nothing beyond the download.

UpkeepUpdate frequency

ReTrader ships an update every 2 months, App One weekly. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
ReTrader versus App One: the parameters behind the verdict, then further details
ParameterReTraderApp One
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews81.8% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size36 MB10 MB
Age rating4+17+
DeveloperFintratech LimitedZhicheng Jiang

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

App One

No in-app purchases

Questions

Is ReTrader free?
ReTrader is free to download, with in-app purchases available.
Is App One free?
App One is free to download, with no in-app purchases.
Do ReTrader or App One have ads?
Neither ReTrader nor App One shows ads.
Which is updated more often, ReTrader or App One?
ReTrader ships an update every 2 months, and App One weekly. Most recently, ReTrader was updated on October 9, 2026 and App One on October 8, 2026.

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