# Altimeter GPS+ (Speedometer) vs Alt

The clearest difference is rating: Alt at 4.5 against Altimeter GPS+ (Speedometer)'s 1.0. Alt also leads on review sentiment (76% vs 37%) and in-app purchases (none vs 2). Altimeter GPS+ (Speedometer)'s advantage is update cadence (monthly vs every 15 months) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Altimeter GPS+ (Speedometer) sells 2 one-off in-app purchases. Alt asks for nothing beyond the download.

Alt holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews point the same way: 37% of Altimeter GPS+ (Speedometer)'s written reviews are positive against 76% of Alt's.

Altimeter GPS+ (Speedometer) ships an update monthly, Alt every 15 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Altimeter GPS+ (Speedometer) | Alt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/altimeter-gps-plus-speedometer/id777238099/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/alt-o-meter/id1073846820/reviews)** |
| Number of ratings | 2 | **8** |
| Positive reviews | 36.6% of reviews | **76.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 15 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 24 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tigran Mkhitaryan](https://appshunter.io/developer/602761285) | [Joshua Hinman](https://appshunter.io/developer/1073846819) |

## What reviewers say

### Altimeter GPS+ (Speedometer)

[App page](https://appshunter.io/ios/app/altimeter-gps-plus-speedometer/id777238099)

Track your elevation, speed, and location with this GPS-enabled tool. Share your current map location via SMS or email, and view your journey on various map modes. Features include unit settings, calibration, and a real-time compass.

**Highlights:** Elevation tracking, Speedometer (mph/kmh), Location sharing via SMS/email, Map integration (satellite, hybrid, standard), Real-time compass, Unit settings (imperial/metric)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |
| Get Pro | $3.99 | one-time |


### 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


## Frequently asked questions

### Is Altimeter GPS+ (Speedometer) free?

Altimeter GPS+ (Speedometer) is free to download, with in-app purchases available.

### Is Alt free?

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

### Which has better reviews, Altimeter GPS+ (Speedometer) or Alt?

Alt is rated higher. Altimeter GPS+ (Speedometer) averages 1.0 out of 5 from 2 ratings, while Alt averages 4.5 from 8 ratings.

### Do Altimeter GPS+ (Speedometer) or Alt have ads?

Neither Altimeter GPS+ (Speedometer) nor Alt shows ads.

### Which is updated more often, Altimeter GPS+ (Speedometer) or Alt?

Altimeter GPS+ (Speedometer) ships an update monthly, and Alt every 15 months. Most recently, Altimeter GPS+ (Speedometer) was updated on November 1, 2026 and Alt 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.*