# MAI TECH vs UTCal

The clearest difference is in-app purchases: MAI TECH at none against UTCal's 1. MAI TECH also leads on iOS requirement (12.3 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. UTCal sells 1 one-off in-app purchase. MAI TECH asks for nothing beyond the download.

MAI TECH ships an update every 3 weeks, UTCal fortnightly. Both last shipped on October 2, 2026.

## The numbers

| Metric | MAI TECH | UTCal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 152 MB | 3 MB |
| Requires iOS | **12.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Shantou Institute of Ultrasonic Inst. Co., Ltd.](https://appshunter.io/developer/406261738) | [Tomas Ramirez](https://appshunter.io/developer/1894095882) |

## What reviewers say

### MAI TECH

[App page](https://appshunter.io/ios/app/mai-tech/id6444035864)

**Features:** macOS Compatibility

**In-app purchases:** none


### UTCal

[App page](https://appshunter.io/ios/app/utcal/id6762418371)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UTCal Pro | $14.99 | one-time |


## Frequently asked questions

### Is MAI TECH free?

MAI TECH is free to download, with no in-app purchases.

### Is UTCal free?

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

### Do MAI TECH or UTCal have ads?

Neither MAI TECH nor UTCal shows ads.

### Which is updated more often, MAI TECH or UTCal?

MAI TECH ships an update every 3 weeks, and UTCal fortnightly. Most recently, MAI TECH was updated on October 2, 2026 and UTCal on October 2, 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.*