Alt vs FlightSpan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alt
This app calculates your precise altitude above sea level using your device's barometer or GPS. It offers a realistic, retro design and automatically calibrates for local atmospheric pressure, with optional manual calibration for advanced users.
- Barometer-based altitude calculation
- GPS fallback for devices without barometer
- Automatic local pressure calibration
- Optional user calibration
- Retro-style interface
- Precise height above sea level
Read full descriptionHide full description
Alt-O-Meter uses the barometer (air pressure sensor) in your late-model iPhone or iPad to calculate your precise height above sea level. Great for hiking, skiing, driving through mountain passes, flying, and more! • Reads ambient air pressure for a more precise reading than GPS. • Realistic, retro style. Looks like a classic airplane's altimeter! • Automatically calibrates for local atmospheric pressure. • ...also allows precise user calibration (optional; for advanced users) • Uses GPS hardware in devices that lack a barometer. • Completely free! No ads or in-app purchases.
FlightSpan
Read full descriptionHide full description
FlightSpan Tools provides flight crews the ability to use their phone to add images to their company's FlightSpan runway charts while in the field. FlightSpan Tools also provides you with a powerful Fare tool for quoting single-leg flights for your customers.
Screenshots
Verdict
The clearest difference is update cadence: FlightSpan at every 6 weeks against Alt's every 15 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Alt ships an update every 15 months, FlightSpan every 6 weeks. The most recent releases landed on August 3, 2026 and September 21, 2026 respectively.
| Parameter | Alt | FlightSpan |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) — better | — |
| Positive reviews | 78.6% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 15 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Hinman | JAARS, Inc. |
In-app purchases
Alt
No in-app purchases
FlightSpan
No in-app purchases
