# Altimeter GPS Elevation vs ARCmaster

The clearest difference is in-app purchases: ARCmaster at none against Altimeter GPS Elevation's 1. ARCmaster also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (15.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Altimeter GPS Elevation sells 1 in-app purchase, starting at $2.99 per 7 days. ARCmaster asks for nothing beyond the download.

Altimeter GPS Elevation ships an update every 6 months, ARCmaster every 3 weeks. The most recent releases landed on August 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Altimeter GPS Elevation | ARCmaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Size | 24 MB | 29 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ES SOLUTIONS SMC-PRIVATE LIMITED](https://appshunter.io/developer/1770521364) | [Anh Thu Duong](https://appshunter.io/developer/1887275689) |

## What reviewers say

### Altimeter GPS Elevation

[App page](https://appshunter.io/ios/app/altimeter-gps-elevation/id6748744079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |


### ARCmaster

[App page](https://appshunter.io/ios/app/arcmaster-geometry-calculator/id6761011090)

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

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter GPS Elevation free?

Altimeter GPS Elevation is free to download, with in-app purchases available.

### Is ARCmaster free?

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

### Do Altimeter GPS Elevation or ARCmaster have ads?

Neither Altimeter GPS Elevation nor ARCmaster shows ads.

### Which is updated more often, Altimeter GPS Elevation or ARCmaster?

Altimeter GPS Elevation ships an update every 6 months, and ARCmaster every 3 weeks. Most recently, Altimeter GPS Elevation was updated on August 5, 2026 and ARCmaster on September 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.*