# 天奥通 vs Math Physics Chemistry Formula

The clearest difference is ads: 天奥通 at none against Math Physics Chemistry Formula's shown. Math Physics Chemistry Formula's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, 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.

天奥通 ships an update every 3 weeks, Math Physics Chemistry Formula every 2 weeks. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 天奥通 | Math Physics Chemistry Formula |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 15 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [四川汉星航通科技有限公司](https://appshunter.io/developer/1676750957) | [NKKtech Global Pte. Ltd.](https://appshunter.io/developer/6781228234) |

## What reviewers say

### 天奥通

[App page](https://appshunter.io/ios/app/id6740943362)

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

**In-app purchases:** none


### Math Physics Chemistry Formula

[App page](https://appshunter.io/ios/app/math-physics-chemistry-formula/id6786215294)

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

**In-app purchases:** none


## Frequently asked questions

### Is 天奥通 free?

天奥通 is free to download, with no in-app purchases.

### Is Math Physics Chemistry Formula free?

Math Physics Chemistry Formula is free to download, with no in-app purchases.

### Do 天奥通 or Math Physics Chemistry Formula have ads?

Math Physics Chemistry Formula shows ads; 天奥通 does not.

### Which is updated more often, 天奥通 or Math Physics Chemistry Formula?

天奥通 ships an update every 3 weeks, and Math Physics Chemistry Formula every 2 weeks. Most recently, 天奥通 was updated on November 12, 2026 and Math Physics Chemistry Formula on November 5, 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.*