# Altimeter GPS & Altitude Map vs Zero Meter

The clearest difference is iOS requirement: Zero Meter at 16 against Altimeter GPS & Altitude Map's 18.0. 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.

## The numbers

| Metric | Altimeter GPS & Altitude Map | Zero Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 46 MB | 2 MB |
| Requires iOS | 18.0 | **16** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEVLUT CIFCIBASI](https://appshunter.io/developer/1777615129) | [辉 吴](https://appshunter.io/developer/1893273006) |

## What reviewers say

### Altimeter GPS & Altitude Map

[App page](https://appshunter.io/ios/app/altimeter-gps-and-altitude-map/id6737724855)

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

**In-app purchases:** none


### Zero Meter

[App page](https://appshunter.io/ios/app/zero-meter/id6772456073)

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

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter GPS & Altitude Map free?

Altimeter GPS & Altitude Map is free to download, with no in-app purchases.

### Is Zero Meter free?

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

### Do Altimeter GPS & Altitude Map or Zero Meter have ads?

Neither Altimeter GPS & Altitude Map nor Zero Meter shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*