Math Flash vs StudyX Smartpaper Letters
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math Flash
This app offers a focused approach to mastering fundamental arithmetic skills through interactive flashcards. Practice multiplication, division, addition, and subtraction with options for specific number focus, timed tests, and review of missed questions. It provides detailed statistics and instant feedback to build speed and accuracy.
- Multiplication, division, addition, subtraction practice
- Focus on specific numbers (1-12)
- Timed test mode
- Review missed problems
- Detailed progress statistics
- Instant feedback with haptics
- Dark mode support
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Math Flash: Math Facts, Flashcards, and Word Problems Math Flash helps kids practice arithmetic with quick flashcards, word problems, smart review, timed tests, and a playful Balloon Pop math game. Students can build confidence with addition, subtraction, multiplication, and division through short, focused practice sessions. Choose a number from 1 to 12, answer math facts, review missed problems, and keep practicing until recall gets faster and more accurate. Key Features • Addition, subtraction, multiplication, and division practice • Focused math fact sets for numbers 1 to 12 • Fast flashcards for daily practice • Word problems for real-world arithmetic • Smart Review for facts that need extra work • Challenge Mode for mixed and flexible thinking • Timed tests for speed and accuracy • Missed problem review • Progress stats after practice sessions • Read-aloud support • Balloon Pop game mode • Dark mode support • Simple, kid-friendly design Math Flash is useful for homework support, classroom drills, times table practice, and daily arithmetic review.
StudyX Smartpaper Letters
This app offers a digital approach to learning letter and character formation, inspired by Montessori methods. It features over 10,000 characters from various languages, including stroke-by-stroke guidance and real-time scoring for self-paced learning.
- Over 10,000 characters (Japanese, Chinese, Korean, English, numerals)
- Stroke-by-stroke tracing guidance with animation
- Real-time scoring against model characters
- Montessori-style color coding
- Cursive alphabet toggle
- Saved practice history (on-device)
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StudyX Smartpaper Letters is the digital version of Montessori's classic Sandpaper Letters, built for iPad + Apple Pencil. The original sandpaper letters set is limited by physical materials — usually just ~26 English letters. This app contains over 10,000 characters, covering Japanese hiragana, katakana, kanji (including jōyō and name kanji), Chinese hanzi (Simplified and Traditional), Korean Hanja, the English alphabet (print and cursive), and numerals. From early literacy through elementary kanji practice and adult handwriting, one app covers it all. With built-in scoring (comparing strokes to the model) and stroke-order animation, children can practice on their own — no parent or teacher needs to stand by. Key features: - Over 10,000 characters: hiragana, katakana, Japanese kanji, Simplified and Traditional Chinese hanzi, Korean Hanja, alphabet (print and cursive), and numerals - Stroke-by-stroke tracing guidance with animation - Real-time scoring vs. the model character - Montessori-style color coding: vowels, consonants, and numbers - Cursive alphabet toggle for handwriting style practice - Saved word lists and practice history (on-device only, never sent off-device) Optimized for iPad with Apple Pencil. Universal app — also runs on iPhone for review. — Attributions - KanjiVG - HanziVG - animCJK
Screenshots
Verdict
The clearest difference is price: Math Flash at Free against StudyX Smartpaper Letters's $9.99. Math Flash also leads on update cadence (every 2 months vs every 5 months). StudyX Smartpaper Letters's advantage is iOS requirement (15.5 vs 18.0). On ads, in-app purchases 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
Math Flash is free to download; StudyX Smartpaper Letters costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Math Flash ships an update every 2 months, StudyX Smartpaper Letters every 5 months. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.
| Parameter | Math Flash | StudyX Smartpaper Letters |
|---|---|---|
| Price | Free — better | $9.99 |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 7 MB | 191 MB |
| Age rating | 4+ | 4+ |
| Developer | Joel Boyd | StudyX G.K. |
In-app purchases
Math Flash
No in-app purchases
StudyX Smartpaper Letters
No in-app purchases
Questions
Is Math Flash free?
Is StudyX Smartpaper Letters free?
Do Math Flash or StudyX Smartpaper Letters have ads?
Which is updated more often, Math Flash or StudyX Smartpaper Letters?
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