HappyWork vs Flashcards & Study
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HappyWork
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Manage your homework with HappyWork. Just enter them into the app, judge their difficulty and remove them again. # Features - Made by students for students - Save your exercises including subject, due date and difficulty. - A list until the end of flash memory - Open Source # Ideas If you have any ideas, open a GitHub Issue. Go to the support URL, click Issues > New Issue and select a fitting topic. # Beta Join the TestFlight at https://testflight.apple.com/join/nopmEm9m and get the newest features before the mass gets them. Source code is available to read and download at https://www.github.com/libewa/hausaufgaben.
Flashcards & Study
This app uses a spaced repetition system to help you learn and remember information. It tracks your progress with detailed statistics and offers robust import/export options. Your data remains private and is stored locally on your device.
- Spaced repetition learning
- Detailed statistics and analysis
- Local data storage and privacy
- CSV import and export
- Customizable accessibility settings
- Apple Watch and Home Screen widgets
- End-to-end encrypted sync via iCloud
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Qardbox remembers what you don’t. The app schedules every card on its own: it shows you a card exactly when you are about to forget it. Not on fixed intervals, but based on what you actually knew. Behind it is FSRS-6, a method from memory research that learns from your answers. HOW IT WORKS One card, one swipe. Right if you knew it, left if you didn’t. Prefer tapping? Turn on the buttons. The card follows your finger and flies off in the direction you push it. YOUR NUMBERS Twenty-nine statistics modules you put together yourself: accuracy, study time, streak, time of day, durability, recall probability. Plus an evaluation in plain sentences, such as “Your accuracy is highest in the afternoon.” YOUR DATA STAYS YOURS No account. No sign-in. No server. No tracking. No ads. Not a single third-party component. Everything lives on your device. If you want, turn on sync through your own iCloud and the same cards are on iPhone, iPad and Apple Watch. Card content, subject names and study times are end-to-end encrypted. Sync is off out of the box; you turn it on yourself. The full privacy policy is in the app, not behind a link. IMPORT AND EXPORT Cards come in as CSV files, including “Open in Qardbox” from any other app. A text template helps you have an AI of your choice build a deck for you. Everything goes back out again: single subjects as CSV, or your complete library including learning states and statistics as a backup. ACCESSIBILITY Nine accessibility settings can be turned on for Qardbox alone, independently of your system settings: reduce motion, bold text, increase contrast, reduce transparency, invert colors, visible buttons instead of swiping, reduced visuals, highlighted controls, and a minimum text size of your own up to the largest step. VoiceOver reads every card and every chart. ON IPHONE, IPAD AND APPLE WATCH On your wrist you see what is due today and study a short round. On the Home Screen there is a widget with today’s progress, and a Live Activity runs during a session. The Action button starts a session or rates the card in front. Siri answers “How many cards are due today?”. WHAT IT COSTS The app is free, with no subscription and no ads. Your own cards are unlimited, and no feature depends on a purchase. Ready-made decks are one-time purchases and work with Family Sharing.
Screenshots
Verdict
The clearest difference is in-app purchases: HappyWork at none against Flashcards & Study's 10. HappyWork also leads on iOS requirement (17.0 vs 26.0). Flashcards & Study's advantage is update cadence (every 2 days vs every 10 months) and device support (3 vs 1). On price and ads 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. Flashcards & Study sells 10 one-off in-app purchases. HappyWork asks for nothing beyond the download.
HappyWork ships an update every 10 months, Flashcards & Study every 2 days. The most recent releases landed on October 6, 2026 and October 22, 2026 respectively.
| Parameter | HappyWork | Flashcards & Study |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 92 MB | 212 MB |
| Age rating | 4+ | 4+ |
| Developer | Michelle Warnatz | Simon Harre |
In-app purchases
HappyWork
No in-app purchases
Flashcards & Study
- Human Geography$0.99
- Microbiology$0.99
- Organic Chemistry$0.99
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- General Chemistry$0.99
- Insurance Terms$0.99
- Real Estate Vocabulary$0.99
- High School Equivalency$0.99
- Dosage Calculations$0.99
- Personal Training$0.99
- ECG Rhythm Recognition$0.99









