# Insterm vs AIRSTEP GP

The clearest difference is ads: AIRSTEP GP at none against Insterm's shown. AIRSTEP GP also leads on update cadence (fortnightly vs every 5 months) and iOS requirement (13.0 vs 17.0). On price, 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.

Insterm ships an update every 5 months, AIRSTEP GP fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Insterm | AIRSTEP GP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Fortnightly** |
| Size | 10 MB | 28 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Mori](https://appshunter.io/developer/1662278979) | [XSONIC Inc.](https://appshunter.io/developer/1487765084) |

## What reviewers say

### Insterm

[App page](https://appshunter.io/ios/app/insterm/id6742595334)

**Features:** macOS Compatibility

**In-app purchases:** none


### AIRSTEP GP

[App page](https://appshunter.io/ios/app/airstep-gp/id6775702124)

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

**In-app purchases:** none


## Frequently asked questions

### Is Insterm free?

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

### Is AIRSTEP GP free?

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

### Do Insterm or AIRSTEP GP have ads?

Insterm shows ads; AIRSTEP GP does not.

### Which is updated more often, Insterm or AIRSTEP GP?

Insterm ships an update every 5 months, and AIRSTEP GP fortnightly. Most recently, Insterm was updated on October 30, 2026 and AIRSTEP GP on October 31, 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.*