# Altimeter vs Alti

The clearest difference is review sentiment: Altimeter at 53% against Alti's 0%. Altimeter also leads on rating (4.7 vs 3.7) and ratings volume (124 vs 3). Alti's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Altimeter holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Altimeter has 124 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 53% of Altimeter's written reviews are positive against 0% of Alti's.

Altimeter ships an update every 2 months, Alti weekly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Altimeter | Alti |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (124 ratings)](https://appshunter.io/ios/app/altimeter-i/id905216286/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/alti-watcher/id1544665506/reviews) |
| Number of ratings | **124** | 3 |
| Positive reviews | **53.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Ad-supported | **Free** |
| Size | 7 MB | 6 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [EONSOFT](https://appshunter.io/developer/899851112) | [Adam Mazur](https://appshunter.io/developer/1330324726) |

## What reviewers say

### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-i/id905216286)

This app uses your iPhone's GPS to display your current, maximum, and minimum altitude. It's ideal for hikers and travelers who need to know their elevation in various units and with adjustable scale magnification.

**Highlights:** GPS altitude display, Current, max, and min altitude tracking, Multiple unit options (m, ft, yd), Adjustable scale magnification, Ideal for hiking and travel

**Features:** Vision Pro support

**In-app purchases:** none


### Alti

[App page](https://appshunter.io/ios/app/alti-watcher/id1544665506)

Track your mountain climbs with this app that uses GPS and your device's barometer to measure altitude gain. It provides daily, monthly, and yearly summaries, and allows you to save and share route profiles. Audio cues can alert you to elevation changes.

**Highlights:** Altitude tracking via GPS and barometer, Daily, monthly, and yearly climb summaries, Route profile recording and saving, Configurable audio alerts for elevation changes, Compass with sunrise/sunset indicator, Adjustable recording duration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter free?

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

### Is Alti free?

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

### Which has better reviews, Altimeter or Alti?

Altimeter is rated higher. Altimeter averages 4.7 out of 5 from 124 ratings, while Alti averages 3.7 from 3 ratings.

### Do Altimeter or Alti have ads?

Altimeter shows ads; Alti does not.

### Which is updated more often, Altimeter or Alti?

Altimeter ships an update every 2 months, and Alti weekly. Most recently, Altimeter was updated on November 1, 2026 and Alti on October 25, 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.*