# TimeCalcX vs Air

The clearest difference is ads: Air at none against TimeCalcX's shown. Air also leads on 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.

TimeCalcX ships an update every 6 months, Air every 5 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | TimeCalcX | Air |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 5 months** |
| Size | 6 MB | 8 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [ALINCO](https://appshunter.io/developer/1342519345) |

## What reviewers say

### TimeCalcX

[App page](https://appshunter.io/ios/app/timecalcx/id1505984516)

**In-app purchases:** none


### Air

[App page](https://appshunter.io/ios/app/air-incom-pro/id1570076119)

**In-app purchases:** none


## Frequently asked questions

### Is TimeCalcX free?

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

### Is Air free?

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

### Do TimeCalcX or Air have ads?

TimeCalcX shows ads; Air does not.

### Which is updated more often, TimeCalcX or Air?

TimeCalcX ships an update every 6 months, and Air every 5 months. Most recently, TimeCalcX was updated on October 17, 2026 and Air on October 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.*