Mathmaji vs Cardify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mathmaji
This app offers a K-5 math curriculum using the Japanese method of structured problem-solving. It features over 500 exercises designed to build confidence, comprehension, and mental calculation skills. Track progress with a comprehensive learning management system.
- K-5 numerical math curriculum
- 500+ engaging exercises
- Japanese instruction techniques
- Tailored lessons and games
- Comprehensive Learning Management System
- Boosts confidence and comprehension
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Mathmaji is an award-winning educational experience that puts the proven Japanese method of structured problem solving at your child's fingertips. Mathmaji is the only math app with a complete K-5 numerical math curriculum to teach new concepts, and our 500+ engaging exercises are specially designed to hone problem-solving skills. Mathmaji’s innovative combination Japanese instruction techniques and tailored lessons, games, and practice exercises earned it the Asian EdTech Summit Global Award Gold Prize and the Global EdTech Startup Award. · Build a strong foundation in essential math skills, boosting confidence and comprehension. · Master new concepts and apply them to real-world problems, develop a strong number sense, and learn methods for quick mental calculation. · Find out how the Japanese approach to math ed takes the mystery out of multiplication, division, and other concepts that may have your student stumped. · Track your student’s progress with Mathmaji’s comprehensive Learning Management System. Get two weeks full access for FREE. Say goodbye to math anxiety! With Mathmaji, a few minutes a day is all it takes to make math your child’s favorite subject!
Cardify
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Learn vocabulary the simple way — with swipe flashcards. Cardify is a complete, finished product. Pay once — get everything. No subscriptions, no ads, no hidden limits, no accounts. Just a beautifully crafted tool for learning words. HOW IT WORKS Add a word with its translation, transcription, and example sentence Swipe right if you know the word, left to review it later Tap a card to flip it and reveal the translation Track your progress as you learn EVERYTHING INCLUDED Swipe-based learning — intuitive card gestures to mark words as learned or review later Unlimited flashcards — add as many words as you need, no limits Custom cards — foreign word, transcription, translation, usage example, and tags Tag system — organize words by topic and filter your word list Progress tracking — words learned, sessions completed, total swipes Spaced review — optionally review learned words at customizable intervals Import & Export — bring in your word lists from CSV files or export to share Dark mode — easy on the eyes, designed for comfortable study sessions Works offline — all data stored locally on your device Privacy first — no data collection, no tracking, ever WHY PAY FOR CARDIFY? You're not buying an app — you're buying a finished product. No in-app purchases to unlock features. No subscription that expires. No ads interrupting your study flow. Everything works from day one, and your data never leaves your device. Cardify is perfect for language students, travelers, or anyone building their vocabulary. Whether you're learning English, Spanish, Japanese, or any other language — create your own cards and start learning at your own pace. Your data stays on your device. Always.
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Verdict
The clearest difference is price: Mathmaji at Free against Cardify's $4.99. Mathmaji also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.1). Cardify's advantage is in-app purchases (none vs 2). On 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
Mathmaji is free to download; Cardify costs $4.99 up front. Mathmaji sells 2 in-app purchases, starting at $15.00 per month. Cardify asks for nothing beyond the download.
| Parameter | Mathmaji | Cardify |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.1 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 17.1 |
| Further details — not scored | ||
| Size | 82 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathmaji Co., Ltd. | Viktor Lev |
In-app purchases
Mathmaji
- Plus Monthly(1 Month)14 Days trial$15.001 Month
- Plus Annual (1 Year)14 Days trial$124.991 Year
Cardify
No in-app purchases









