メモ帳 vs Missing Number Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
メモ帳
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シンプルで使いやすいリスト付きメモアプリ メモした日付がわかるので管理しやすい！ 不要になったメモやリストは簡単に削除できる！ 簡単入力できるのですぐにメモできより快適に！
Missing Number Calculator
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Instantly solve missing number math puzzles! Find the value of the blank with this intuitive calculator app. Missing Number Calculator lets you solve equations with a missing value. Enter a math expression with a blank, and the app finds the answer instantly. Perfect for learning, practice, or fun!
Screenshots
Verdict
The clearest difference is price: メモ帳 at Free against Missing Number Calculator's $0.99. メモ帳 also leads on iOS requirement (15.0 vs 17.0). Missing Number Calculator's advantage is ads (none vs shown). On update cadence, 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
メモ帳 is free to download; Missing Number Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
メモ帳 ships an update every 4 days, Missing Number Calculator every 3 days. The most recent releases landed on October 25, 2026 and October 13, 2026 respectively.
| Parameter | メモ帳 | Missing Number Calculator |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 4 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | matsuda riki | Infinity Inc. (Apps) |
In-app purchases
メモ帳
No in-app purchases
Missing Number Calculator
No in-app purchases
