# 学霸拯救地球 vs Focus Bottle

The clearest difference is iOS requirement: 学霸拯救地球 at 12.0 against Focus Bottle's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 学霸拯救地球 sells 1 one-off in-app purchase and Focus Bottle sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

学霸拯救地球 ships an update fortnightly, Focus Bottle every 9 days. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 学霸拯救地球 | Focus Bottle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (158 ratings)](https://appshunter.io/ios/app/id660145674/reviews)** | — |
| Number of ratings | **158** | — |
| Positive reviews | 95.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 174 MB | 91 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Zhongbao Zhang](https://appshunter.io/developer/890712456) | [广西炜辰信息科技有限责任公司](https://appshunter.io/developer/1803781304) |

## What reviewers say

### 学霸拯救地球

[App page](https://appshunter.io/ios/app/id660145674)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 永久购买 | $6.99 | one-time |


### Focus Bottle

[App page](https://appshunter.io/ios/app/focus-bottle-timer-and-study/id6743648843)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $9.99 | per year |
| Orange Energy Bottle | $0.99 | one-time |
| Beginner's Bottle | $0.99 | one-time |
| Sunshine Bottle | $0.99 | one-time |
| Wooden Bottle | $0.99 | one-time |
| Fairy Tale Bottle | $0.99 | one-time |
| Lifetime Plan | $14.99 | one-time |


## Frequently asked questions

### Is 学霸拯救地球 free?

学霸拯救地球 is free to download, with in-app purchases available.

### Is Focus Bottle free?

Focus Bottle is free to download, with in-app purchases available.

### Do 学霸拯救地球 or Focus Bottle have ads?

Neither 学霸拯救地球 nor Focus Bottle shows ads.

### Which is updated more often, 学霸拯救地球 or Focus Bottle?

学霸拯救地球 ships an update fortnightly, and Focus Bottle every 9 days. Most recently, 学霸拯救地球 was updated on September 21, 2026 and Focus Bottle on September 13, 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.*