# Pro Altimeter vs FlightSpan

The clearest difference is price: FlightSpan at Free against Pro Altimeter's $0.99. FlightSpan also leads on update cadence (every 6 weeks vs every 12 months). Pro Altimeter's advantage is chart position (#121 vs unranked) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

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

Pro Altimeter ships an update every 12 months, FlightSpan every 6 weeks. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Pro Altimeter | FlightSpan |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.8 (39 ratings)](https://appshunter.io/ios/app/pro-altimeter-barometric-plus-gps/id926603602/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Monetization | Free | — |
| Best chart rank | **#121** | — |
| Size | 1 MB | 11 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Craig Hunter](https://appshunter.io/developer/286743884) | [JAARS, Inc.](https://appshunter.io/developer/1581595970) |

## What reviewers say

### Pro Altimeter

[App page](https://appshunter.io/ios/app/pro-altimeter-barometric-plus-gps/id926603602)

**Currently charting:** #121 Top Paid · Navigation (US App Store)

This app measures and computes altitude using your device's barometric pressure sensor and GPS. It offers multiple calibration methods, including GPS, manual input, and airport METAR data, for accurate readings. The interface is simple with large, easy-to-read numbers and offers distinct day and night display modes.

**Highlights:** Barometric and GPS altitude measurement, Multiple calibration methods (GPS, manual, METAR), Real-time accuracy estimates, Large, easy-to-read display, Day and night display modes, Calibration reminders

**Features:** Vision Pro support

**In-app purchases:** none


### FlightSpan

[App page](https://appshunter.io/ios/app/flightspan-tools/id6754396580)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pro Altimeter free?

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

### Is FlightSpan free?

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

### Do Pro Altimeter or FlightSpan have ads?

Neither Pro Altimeter nor FlightSpan shows ads.

### Which is updated more often, Pro Altimeter or FlightSpan?

Pro Altimeter ships an update every 12 months, and FlightSpan every 6 weeks. Most recently, Pro Altimeter was updated on September 26, 2026 and FlightSpan on September 21, 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.*