Three Sided Flashcards vs FlashAnzan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Three Sided Flashcards
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Three Sided Flashcards helps you study complex concepts that cannot be captured effectively with traditional two-sided flashcards. Create flashcards with three connected sides to learn information that has more than just a question and an answer: No matter if you want to study scientific, medical, or legal concepts with multiple elements to remember, or Chinese characters together with their reading and meaning - Three Sided got you covered. Choose exactly what goes on each side and create flashcards that match the structure of what you are learning. Import flashcards from Excel or CSV files to create large card sets quickly and easily. Designed for focused, flexible study without distractions or unnecessary features, Three Sided Flashcards makes it easier to understand and remember complex information.
FlashAnzan
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Practice flash anzan (flash mental arithmetic) in the same format as the Japanese grading exam—and climb the ranks. GRADED MODE (30 RANKS, KYU 10 TO DAN 20) Each rank uses the exam's total-time format: numbers flash within a fixed total time, you answer 10 problems, and 70 points is a pass. Kyu 10–8 are free, and every higher rank includes one free try. A single one-time purchase unlocks all ranks (no subscription). YOUR GRADE IS KEPT Your best rank is recorded on the device and in iCloud, so it follows you to a new device. ANSWER BY VOICE Type on the number pad, or just say the answer. Speech recognition runs entirely on your device—your voice is never sent anywhere. FREE PRACTICE Set digits, count, and display time yourself—from slow single digits to 3-digit numbers at 0.3 seconds. IPHONE, IPAD AND MAC One purchase covers all three, and your grade follows you between them through iCloud. No ads. Available in nine languages: English, Japanese, Chinese (Simplified and Traditional), Korean, German, Spanish, French and Brazilian Portuguese. Note: This app is not affiliated with or endorsed by any certification body.
Screenshots
Verdict
The clearest difference is device support: FlashAnzan at 4 against Three Sided Flashcards's 1. FlashAnzan also leads on iOS requirement (18.0 vs 26.1). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Three Sided Flashcards | FlashAnzan |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 26.1 | 18.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 9+ | 4+ |
| Developer | Sven Langsdorf | Haruhiko Kishi |
In-app purchases
Three Sided Flashcards
No in-app purchases
FlashAnzan
No in-app purchases
Questions
Is Three Sided Flashcards free?
Is FlashAnzan free?
Do Three Sided Flashcards or FlashAnzan have ads?
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