# Skydive Altimeter vs FSG

The clearest difference is price: FSG at Free against Skydive Altimeter's $0.99. FSG also leads on update cadence (every 2 weeks vs every 6 months). Skydive Altimeter's advantage is iOS requirement (8.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

FSG is free to download; Skydive Altimeter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Skydive Altimeter ships an update every 6 months, FSG every 2 weeks. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Skydive Altimeter | FSG |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/skydive-altimeter/id463197450/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 29 MB | 137 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mixed Up](https://appshunter.io/developer/463197453) | [Philipp Waldow](https://appshunter.io/developer/1450656751) |

## What reviewers say

### Skydive Altimeter

[App page](https://appshunter.io/ios/app/skydive-altimeter/id463197450)

This app simulates an altimeter for skydiving students to practice altitude awareness during dives. It offers configurable jump heights, audible alerts for critical altitudes, and fall rate simulations.

**Highlights:** Altimeter simulation, Configurable jump heights, Simulated audible alerts, Fall rate simulation, Metric and Feet support, Adjustable heights and speeds

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

**In-app purchases:** none


### FSG

[App page](https://appshunter.io/ios/app/fsg/id1575248021)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Skydive Altimeter free?

Skydive Altimeter costs $0.99, with no in-app purchases.

### Is FSG free?

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

### Do Skydive Altimeter or FSG have ads?

Neither Skydive Altimeter nor FSG shows ads.

### Which is updated more often, Skydive Altimeter or FSG?

Skydive Altimeter ships an update every 6 months, and FSG every 2 weeks. Most recently, Skydive Altimeter was updated on October 4, 2026 and FSG on October 3, 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.*