# 逆算勉強 vs 最強の勉強分析・記録SNS

The clearest difference is in-app purchases: 逆算勉強 at none against 最強の勉強分析・記録SNS's 4. 逆算勉強 also leads on ads (none vs shown) and update cadence (daily vs fortnightly). On price and device support there is nothing between them.

Both are free to download. 最強の勉強分析・記録SNS sells 4 in-app purchases, starting at $2.99 per month. 逆算勉強 asks for nothing beyond the download.

逆算勉強 ships an update daily, 最強の勉強分析・記録SNS fortnightly. The most recent releases landed on June 1, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | 逆算勉強 | 最強の勉強分析・記録SNS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 65.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 116 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kodai Maki](https://appshunter.io/developer/1674346013) | [Ryunosuke Shibuya](https://appshunter.io/developer/1588660637) |

## What reviewers say

### 逆算勉強

[App page](https://appshunter.io/ios/app/id6445865041)

**Features:** macOS Compatibility

**In-app purchases:** none


### 最強の勉強分析・記録SNS

[App page](https://appshunter.io/ios/app/sns-studylegends/id6446177398)

This app helps users track study progress, set daily schedules, and compete with others. It offers various analysis tools, gamified features, and a screen time blocker to enhance focus and motivation. It supports a wide range of subjects and exams.

**Highlights:** Study progress tracking, Social interaction with friends, Daily study schedule setting, Ebbinghaus forgetting curve analysis, Ranking system for competition, Barcode scanning for教材 registration, Screen time blocker, Gamified learning with levels and titles

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1ヶ月プラン | $2.99 | per month |
| 半年プラン | $9.99 | per 6 months |
| 1年プラン | $14.99 | per year |
| 永久プラン | $29.99 | one-time |


## Frequently asked questions

### Is 逆算勉強 free?

逆算勉強 is free to download, with no in-app purchases.

### Is 最強の勉強分析・記録SNS free?

最強の勉強分析・記録SNS is free to download, with in-app purchases available.

### Do 逆算勉強 or 最強の勉強分析・記録SNS have ads?

最強の勉強分析・記録SNS shows ads; 逆算勉強 does not.

### Which is updated more often, 逆算勉強 or 最強の勉強分析・記録SNS?

逆算勉強 ships an update daily, and 最強の勉強分析・記録SNS fortnightly. Most recently, 逆算勉強 was updated on June 1, 2026 and 最強の勉強分析・記録SNS on September 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*