# 高校数学 数I〜数C 解法の最初の一手 vs 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル

The clearest difference is iOS requirement: 高校数学 数I〜数C 解法の最初の一手 at 15.0 against 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 高校数学 数I〜数C 解法の最初の一手 sells 1 one-off in-app purchase and 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

高校数学 数I〜数C 解法の最初の一手 ships an update weekly, 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル every 2 weeks. The most recent releases landed on October 28, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | 高校数学 数I〜数C 解法の最初の一手 | 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 22 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gen Nakanishi](https://appshunter.io/developer/6782112814) | [RAINBOW TREE LLC](https://appshunter.io/developer/1619997282) |

## What reviewers say

### 高校数学 数I〜数C 解法の最初の一手

[App page](https://appshunter.io/ios/app/ic/id6782112812)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全解放（すべての初手） | $4.99 | one-time |


### 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル

[App page](https://appshunter.io/ios/app/123/id6801984949)

This app helps middle school students master math by identifying and addressing specific areas of difficulty. It offers multiple explanation styles, targeted feedback on errors, and practice tests to reinforce learning. All features are available without ads.

**Highlights:** Adaptive learning by tracing back to previous topics, Dual explanation styles: textbook and conversational, Specific error identification and targeted feedback, Unit-spanning practice tests, In-app scratchpad for calculations, Progress tracking and spaced repetition, User feedback mechanism for content improvement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chugaku Sugaku Pro | $6.99 | one-time |


## Frequently asked questions

### Is 高校数学 数I〜数C 解法の最初の一手 free?

高校数学 数I〜数C 解法の最初の一手 is free to download, with in-app purchases available.

### Is 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル free?

中学数学 中1中2中3の苦手をさかのぼって解き直すドリル is free to download, with in-app purchases available.

### Do 高校数学 数I〜数C 解法の最初の一手 or 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル have ads?

Neither 高校数学 数I〜数C 解法の最初の一手 nor 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル shows ads.

### Which is updated more often, 高校数学 数I〜数C 解法の最初の一手 or 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル?

高校数学 数I〜数C 解法の最初の一手 ships an update weekly, and 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル every 2 weeks. Most recently, 高校数学 数I〜数C 解法の最初の一手 was updated on October 28, 2026 and 中学数学 中1中2中3の苦手をさかのぼって解き直すドリル on November 10, 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.*