# ITR vs Sethala Indoor

The clearest difference is device support: Sethala Indoor at 3 against ITR's 1. Sethala Indoor also leads on iOS requirement (14.0.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ITR ships an update monthly, Sethala Indoor every 4 weeks. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ITR | Sethala Indoor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 weeks** |
| Size | 8 MB | 56 MB |
| Requires iOS | 17.0 | **14.0.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [International Thermal Research Ltd.](https://appshunter.io/developer/1496252759) | [Sethala (Pty) Ltd.](https://appshunter.io/developer/1488756818) |

## What reviewers say

### ITR

[App page](https://appshunter.io/ios/app/itr-neos/id1489761851)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sethala Indoor

[App page](https://appshunter.io/ios/app/sethala-indoor/id1663485196)

**In-app purchases:** none


## Frequently asked questions

### Is ITR free?

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

### Is Sethala Indoor free?

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

### Do ITR or Sethala Indoor have ads?

Neither ITR nor Sethala Indoor shows ads.

### Which is updated more often, ITR or Sethala Indoor?

ITR ships an update monthly, and Sethala Indoor every 4 weeks. Most recently, ITR was updated on October 8, 2026 and Sethala Indoor on September 30, 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.*