ベタ問の森 vs ○× Buzzer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ベタ問の森
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「ベタ問の森」の問題を一覧で見ることができます。 早押しボタンを使って押しポイントを確認しながらの実践練習ができます。 分からない問題はお気に入り登録をして重点的に覚えることができます。
○× Buzzer
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"○× Buzzer" is an app that displays a correct "○" and makes a "ping pong" sound, and displays an incorrect "×" and makes a "beep" sound. It can also be controlled using your Apple Watch.
Screenshots
Verdict
The clearest difference is in-app purchases: ○× Buzzer at none against ベタ問の森's 1. ○× Buzzer also leads on update cadence (weekly vs every 5 weeks) and device support (4 vs 1). ベタ問の森's advantage is ads (none vs shown). On price 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. ベタ問の森 sells 1 one-off in-app purchase. ○× Buzzer asks for nothing beyond the download.
ベタ問の森 ships an update every 5 weeks, ○× Buzzer weekly. The most recent releases landed on September 20, 2026 and October 7, 2026 respectively.
| Parameter | ベタ問の森 | ○× Buzzer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.2 | 14.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Iori Kodama | Legal Prompt Inc. |
In-app purchases
ベタ問の森
- お気に入り上限を100増やす$0.49
○× Buzzer
No in-app purchases
