Comparison

記憶KEEPER vs Rail Typing

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

記憶KEEPER

Features
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「いつ復習すればいいか分からない」「問題集を何周もしているのに身につかない」——記憶KEEPERは、忘却曲線にもとづく間隔反復で、資格勉強の“復習タイミング”を自動で管理するアプリです。 【特長】 ・問題番号を登録するだけ。カードを一から作る手間はありません。 ・「今日復習すべき問題」を毎日提示し、勉強の偏りを防ぎます。 ・苦手な問題だけを集中して復習できる「苦手対策」。 ・教材→章→節で整理でき、複数の資格を並行して管理できます。 ・広告なし・余計な通知なし。 【こんな方に】 宅建士・FP・簿記・施工管理技士・行政書士・社労士など、自分の問題集で暗記を進めたい資格受験者の方へ。 今なら無料でご利用いただけます。

About

Rail Typing

Features
Read full description

Type a station name. Move your train. Learn along the way. Rail Typing combines typing practice with language learning on real railway routes. Build familiarity with Japanese kana, romaji input, station-name readings, and English spelling as you travel from one station to the next. PRACTICE JAPANESE AND ENGLISH Choose from romaji, kana, kanji, English, listening, and multiple-choice modes, depending on the route. Connect Japanese readings with typed letters, practice kanji using your input method, or spell out London station names in English. In listening mode, hear a station name and type your answer. START AT YOUR LEVEL New to kana? Begin with multiple-choice questions. Already reading Japanese? Try romaji input with optional key hints. As you gain confidence, explore kanji and listening modes or work toward a faster, more accurate run. EXPLORE REAL RAILWAY ROUTES Ride through Tokyo, Osaka, Kyoto, Sapporo, and other Japanese cities, or explore routes in London. Real station names and station sequences give each practice session a start, a destination, and a reason to keep going. TURN PRACTICE INTO A CHALLENGE Try the daily route, race other players online, or chase a ghost record. Improve your personal best one station at a time. Online races and leaderboards require an internet connection, and some features require signing in. SEE YOUR PROGRESS Review your completion time, typing speed, accuracy, and commonly mistyped characters. Track your practice streak, collect achievement stamps, and share result cards. Widgets and optional daily reminders help you return for your next ride. The interface supports English, Japanese, Simplified Chinese, Traditional Chinese, and Korean. Play with the on-screen keyboard or an external keyboard. FREE ROUTES AND THE ALL-LINES PASS Practice the Yamanote Line and the daily free route at no cost. Other routes offer a short preview. Unlock every route with an All-lines pass, available as a monthly subscription, annual subscription, or one-time lifetime purchase. Monthly and annual subscriptions renew automatically. Manage or cancel them in your Apple Account subscription settings. The lifetime option is a one-time purchase. Prices and purchase terms are shown on the in-app purchase screen. Make every station a chance to practice. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://api.railtyping.com/privacy

Screenshots

記憶KEEPER4 screens
Rail Typing4 screens

Verdict

The call

The clearest difference is in-app purchases: 記憶KEEPER at none against Rail Typing's 3. 記憶KEEPER also leads on iOS requirement (15.0 vs 18.0). Rail Typing's advantage is update cadence (daily vs every 3 days). 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. Rail Typing sells 3 in-app purchases, starting at $1.99 per month. 記憶KEEPER asks for nothing beyond the download.

UpkeepUpdate frequency

記憶KEEPER ships an update every 3 days, Rail Typing daily. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 3 level
記憶KEEPER versus Rail Typing: the parameters behind the verdict, then further details
Parameter記憶KEEPERRail Typing
PriceFreeFree
Update frequencyEvery 3 daysDaily — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size4 MB49 MB
Age rating4+12+
Developernao watanabe渭康 吕

In-app purchases

None

記憶KEEPER

No in-app purchases

3 purchases

Rail Typing

Subscriptions2
  • Rail Pass · Monthly$1.991 Month
  • Rail Pass · Yearly7 Days trial$9.991 Year
One-time1
  • Rail Pass · Lifetime$19.99

Questions

Is 記憶KEEPER free?
記憶KEEPER is free to download, with no in-app purchases.
Is Rail Typing free?
Rail Typing is free to download, with in-app purchases available.
Do 記憶KEEPER or Rail Typing have ads?
Neither 記憶KEEPER nor Rail Typing shows ads.
Which is updated more often, 記憶KEEPER or Rail Typing?
記憶KEEPER ships an update every 3 days, and Rail Typing daily. Most recently, 記憶KEEPER was updated on October 7, 2026 and Rail Typing on October 10, 2026.

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