Dictionary vs 逆引記念日
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dictionary
Instantly look up words from your iOS Home Screen without opening the app. Get definitions in seconds to aid studying, reading, or satisfying curiosity, keeping you focused and learning.
- Home Screen widget for instant lookups
- No app launch required
- Quick definitions
- Seamless learning experience
- Focus on tasks
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With the iOS widget, you can look up words instantly right from your Home Screen — no need to launch the app. Whether you’re studying, reading, or just curious, the widget makes searching smooth and effortless. Stay focused on your task, get definitions in seconds, and keep learning without interruptions. Perfect for students, language learners, and anyone who loves words.
逆引記念日
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日本の記念日を表示するアプリケーション。 記念日から日付を逆引きできる。 先頭2文字のふりがなから記念日を選択でき、選択が容易。 従来アプリにあるような日付から記念日を絞り込むモードもあり、検索の方向を切り替えできる。 iPadにも対応。
Screenshots
Verdict
The clearest difference is update cadence: Dictionary at every 3 weeks against 逆引記念日's every 7 months. 逆引記念日's advantage is iOS requirement (12.0 vs 18.0). 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.
Dictionary ships an update every 3 weeks, 逆引記念日 every 7 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.
| Parameter | Dictionary | 逆引記念日 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 94.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 weeks — better | Every 7 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 21 MB |
| Age rating | 12+ | 4+ |
| Developer | Catalystwo | Takuya Ishikawa |
In-app purchases
Dictionary
No in-app purchases
逆引記念日
No in-app purchases
