# Formula Calculator Alpha vs 班主任小秘书

The clearest difference is update cadence: 班主任小秘书 at every 3 days against Formula Calculator Alpha's every 9 days. 班主任小秘书 also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Formula Calculator Alpha ships an update every 9 days, 班主任小秘书 every 3 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Formula Calculator Alpha | 班主任小秘书 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Size | 3 MB | 44 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [子宸 魏](https://appshunter.io/developer/1890054508) | [书艺 付](https://appshunter.io/developer/1869906507) |

## What reviewers say

### Formula Calculator Alpha

[App page](https://appshunter.io/ios/app/formula-calculator-alpha/id6775855674)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### 班主任小秘书

[App page](https://appshunter.io/ios/app/id6797754054)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Formula Calculator Alpha free?

Formula Calculator Alpha is free to download, with no in-app purchases.

### Is 班主任小秘书 free?

班主任小秘书 is free to download, with no in-app purchases.

### Do Formula Calculator Alpha or 班主任小秘书 have ads?

Neither Formula Calculator Alpha nor 班主任小秘书 shows ads.

### Which is updated more often, Formula Calculator Alpha or 班主任小秘书?

Formula Calculator Alpha ships an update every 9 days, and 班主任小秘书 every 3 days. Most recently, Formula Calculator Alpha was updated on October 31, 2026 and 班主任小秘书 on October 29, 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.*