RiKeyboard vs Science Custom Keyboard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RiKeyboard
This app provides an enhanced keyboard experience with a wide range of characters beyond standard alphabets and numbers. It includes various symbols and special mathematical characters, all accessible without requiring full keyboard access.
- Alphabet input
- Number input (123, ¹²³, ₁₂₃)
- Standard symbols
- Special characters (integral, sigma)
- No full access required
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搭載機能 ・アルファベット入力 ・数字入力（123/¹²³/₁₂₃） ・純正キーボードに搭載される記号（一部省略） ・その他特殊文字（インテグラルやシグマなど） フルアクセスなしですべての機能が使えます。 Credit tasty-imitation-keyboard by archagon
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！
Screenshots
Verdict
The clearest difference is update cadence: RiKeyboard at every 3 weeks against Science Custom Keyboard's every 2 months. RiKeyboard also leads on iOS requirement (8.0 vs 17.5). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RiKeyboard ships an update every 3 weeks, Science Custom Keyboard every 2 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.
| Parameter | RiKeyboard | Science Custom Keyboard |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) — better | — |
| Positive reviews | 82.4% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.5 |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | nakamura yusaku | Niaris |
In-app purchases
RiKeyboard
No in-app purchases
Science Custom Keyboard
No in-app purchases
Questions
Is RiKeyboard free?
Is Science Custom Keyboard free?
Do RiKeyboard or Science Custom Keyboard have ads?
Which is updated more often, RiKeyboard or Science Custom Keyboard?
Other comparisons
