# Alturos vs Opti Clinometer

The clearest difference is update cadence: Opti Clinometer at every 2 days against Alturos's every 7 months. 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.

Alturos ships an update every 7 months, Opti Clinometer every 2 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Alturos | Opti Clinometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/opti-clinometer/id6788531229/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 days** |
| Size | 9 MB | 2 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Markus Johansson](https://appshunter.io/developer/1685913239) | [Burak Kizilobek](https://appshunter.io/developer/6788531231) |

## What reviewers say

### Alturos

[App page](https://appshunter.io/ios/app/alturos/id6742664837)

**Features:** macOS Compatibility

**In-app purchases:** none


### Opti Clinometer

[App page](https://appshunter.io/ios/app/opti-clinometer/id6788531229)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alturos free?

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

### Is Opti Clinometer free?

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

### Do Alturos or Opti Clinometer have ads?

Neither Alturos nor Opti Clinometer shows ads.

### Which is updated more often, Alturos or Opti Clinometer?

Alturos ships an update every 7 months, and Opti Clinometer every 2 days. Most recently, Alturos was updated on October 6, 2026 and Opti Clinometer on October 24, 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.*