# Altimeter ∞ Elevation GPS vs NUS FreeRoom

The clearest difference is in-app purchases: NUS FreeRoom at none against Altimeter ∞ Elevation GPS's 3. Altimeter ∞ Elevation GPS's advantage is device support and iOS requirement (17.0 vs 26.2). On price there is nothing between them.

Both are free to download. Altimeter ∞ Elevation GPS sells 3 in-app purchases, starting at $1.99 per month. NUS FreeRoom asks for nothing beyond the download.

## The numbers

| Metric | Altimeter ∞ Elevation GPS | NUS FreeRoom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1K ratings)](https://appshunter.io/ios/app/altimeter-elevation-gps/id1317545857/reviews)** | — |
| Number of ratings | **1K** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 17 MB | 4 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Fawkes Wei](https://appshunter.io/developer/432767536) | [Don Chia](https://appshunter.io/developer/1531063474) |

## What reviewers say

### Altimeter ∞ Elevation GPS

[App page](https://appshunter.io/ios/app/altimeter-elevation-gps/id1317545857)

This app provides real-time GPS altitude readings in feet or meters with live accuracy indicators. It's designed for outdoor enthusiasts and travelers needing a fast, reliable elevation tracker that works offline and uses minimal battery.

**Highlights:** Live GPS altitude, Unit toggle (feet/meters), GPS accuracy display, Offline functionality, Minimal battery usage, Clean interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $7.99 | per year |
| Lifetime | $7.99 | one-time |


### NUS FreeRoom

[App page](https://appshunter.io/ios/app/nus-freeroom/id6759440351)

**In-app purchases:** none


## Frequently asked questions

### Is Altimeter ∞ Elevation GPS free?

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

### Is NUS FreeRoom free?

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

---

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