# Alt vs CamSextant

Alt and CamSextant both sit at 4.5 stars, but that hides the real split: 76% of Alt's written reviews are positive against 50% of CamSextant's. CamSextant's advantage is update cadence (every 5 months vs every 15 months) and iOS requirement (11.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.5 for Alt against 4.5 for CamSextant. Both are backed by a comparable volume of ratings — 8 and 8 respectively. Written reviews are what separate them: 76% of Alt's written reviews are positive against 50% of CamSextant's.

Alt ships an update every 15 months, CamSextant every 5 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Alt | CamSextant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (8 ratings)](https://appshunter.io/ios/app/alt-o-meter/id1073846820/reviews) | [4.5 (8 ratings)](https://appshunter.io/ios/app/camsextant/id1076411081/reviews) |
| Number of ratings | 8 | 8 |
| Positive reviews | **76.5% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 3 MB | 26 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joshua Hinman](https://appshunter.io/developer/1073846819) | [Omar reis](https://appshunter.io/developer/687921629) |

## What reviewers say

### Alt

[App page](https://appshunter.io/ios/app/alt-o-meter/id1073846820)

This app calculates your precise altitude above sea level using your device's barometer or GPS. It offers a realistic, retro design and automatically calibrates for local atmospheric pressure, with optional manual calibration for advanced users.

**Highlights:** Barometer-based altitude calculation, GPS fallback for devices without barometer, Automatic local pressure calibration, Optional user calibration, Retro-style interface, Precise height above sea level

**In-app purchases:** none


### CamSextant

[App page](https://appshunter.io/ios/app/camsextant/id1076411081)

This app functions as a celestial navigation tool, enabling users to take altitude measurements of celestial bodies using their phone. It provides real-time star and planet identification, automatic astronomical position calculations, and a perpetual nautical almanac.

**Highlights:** Celestial object altitude measurement, Real-time star and planet identification, Automatic astronomical position calculation, Perpetual nautical almanac, Audio star name and altitude announcement, Horizon calibration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Alt free?

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

### Is CamSextant free?

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

### Which has better reviews, Alt or CamSextant?

Alt and CamSextant are both rated 4.5 out of 5 on the App Store, from 8 and 8 ratings respectively.

### Do Alt or CamSextant have ads?

Neither Alt nor CamSextant shows ads.

### Which is updated more often, Alt or CamSextant?

Alt ships an update every 15 months, and CamSextant every 5 months. Most recently, Alt was updated on November 2, 2026 and CamSextant on November 6, 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.*