Science Custom Keyboard vs Study Split
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Science Custom Keyboard
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理系ユーザーのためのカスタムキーボードアプリ 数式・記号・ギリシャ文字・反応式まで、かんたんに入力！ メッセージアプリで友達に質問するのにも最適です！ --- 【主な特徴】 - √, π, ∫, log などの数学記号をワンタップ入力 - Cu + HNO₃ → Cu(NO₃)₂ + NO₂ + H₂O のような化学反応式もラクラク - 入力モード切替（アルファベット・数式・記号など） - Unicodeに対応しているため、文字化けが起こりにくい！ --- 【こんな人におすすめ】 - 数式や理系記号をよく使う人 - レポートやノートをスマホ・タブレットで書く学生 - 数学・化学・物理・情報系などの教員・研究者 --- 【対応OS】 iOS 17以降 iPhone対応 --- 理系ライフをもっとスマートに。 ぜひ一度試してみてください！
Study Split
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Version 2.9 makes Study Split easier to read, plan with, and use every day. • Refreshed the Home screen and Today dashboard design • Improved study cards so progress is easier to understand at a glance • Added clearer visuals for progress, streaks, and daily study status • Improved the empty state for first-time users • Improved compatibility for printable study sheets • Fixed minor layout issues and warnings • Improved overall stability This update helps you follow your daily study targets and stay organized until exam day.
Screenshots
Verdict
The clearest difference is in-app purchases: Science Custom Keyboard at none against Study Split's 2. Study Split's advantage is update cadence (every 11 days vs every 5 weeks). On price, ads, device support and iOS requirement 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. Study Split sells 2 in-app purchases, starting at $0.49 per month. Science Custom Keyboard asks for nothing beyond the download.
Science Custom Keyboard ships an update every 5 weeks, Study Split every 11 days. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.
| Parameter | Science Custom Keyboard | Study Split |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.5 — better | 18.6 |
| Further details — not scored | ||
| Size | 23 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Yoshiki Tanaka | Satoshi Yamada |
In-app purchases
Science Custom Keyboard
No in-app purchases
Study Split
- Up to 5 Subjects (Monthly)$0.491 Month
- Unlimited Subjects (Monthly)$0.991 Month
Questions
Is Science Custom Keyboard free?
Is Study Split free?
Do Science Custom Keyboard or Study Split have ads?
Which is updated more often, Science Custom Keyboard or Study Split?
Other comparisons
