E vs Anki（あんき）
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
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This software is used to operate the E-Sensor, which measures temperature, humidity, velocity, illuminance, and CO₂ level.
Anki（あんき）
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◆Anki 暗記アプリで、忘れる前に効率よく復習をして暗記を継続できるように準備をして、テストや試験に備えよう！◆ 忘却曲線を参考にした復習システムを使用した暗記の復習ができる、単語帳アプリのAnki 暗記アプリが完成しました！ 【こだわりポイント】 ◎画像や音声と一緒に暗記の学習をすることができます！ ◎定期テスト・受験勉強・資格試験など暗記が必要なあらゆる学習を効率的に実行できます！ ◎アップデートで最新の暗記学習に対応したアプリを提供します！ プライバシーポリシー: https://glittery-talon-8ab.notion.site/Anki-3ba5c5b45c1180eba743f8e045d0a1a6 利用規約: https://glittery-talon-8ab.notion.site/Anki-3ba5c5b45c1180f1b824d9f1df2102e8
Screenshots
Verdict
The clearest difference is device support: E at 3 against Anki（あんき）'s 1. E also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases 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.
E ships an update every 2 weeks, Anki（あんき） every 3 weeks. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.
| Parameter | E | Anki（あんき） |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 62 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Eisuke Togashi | CapCat LLC |
In-app purchases
E
No in-app purchases
Anki（あんき）
No in-app purchases
