# Math Machine vs Time Zone Swap

The clearest difference is update cadence: Math Machine at every 2 days against Time Zone Swap's every 3 weeks. Math Machine also leads on iOS requirement (13.0 vs 15.0). 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.

Math Machine ships an update every 2 days, Time Zone Swap every 3 weeks. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Math Machine | Time Zone Swap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 29 MB | 22 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viet Anh Bui](https://appshunter.io/developer/6772413131) | [Thi Ngan Ha Pham](https://appshunter.io/developer/6803484106) |

## What reviewers say

### Math Machine

[App page](https://appshunter.io/ios/app/math-machine-vn/id6772413129)

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

**In-app purchases:** none


### Time Zone Swap

[App page](https://appshunter.io/ios/app/time-zone-swap/id6803484104)

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

**In-app purchases:** none


## Frequently asked questions

### Is Math Machine free?

Math Machine is free to download, with no in-app purchases.

### Is Time Zone Swap free?

Time Zone Swap is free to download, with no in-app purchases.

### Do Math Machine or Time Zone Swap have ads?

Neither Math Machine nor Time Zone Swap shows ads.

### Which is updated more often, Math Machine or Time Zone Swap?

Math Machine ships an update every 2 days, and Time Zone Swap every 3 weeks. Most recently, Math Machine was updated on October 4, 2026 and Time Zone Swap on October 18, 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.*