Alt vs Levil Aviation
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
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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.
Levil Aviation
This app creates a customizable digital instrument panel for aircraft, bridging the gap between wireless avionics and navigation apps. It displays data from various wireless devices alongside your preferred navigation application, utilizing iOS multitasking features.
- Customizable digital instrument panel
- Wireless avionics integration
- Display traffic avoidance data
- Engine monitoring interface
- EFIS display
- Angle of attack monitoring
- Autopilot interface
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The new Levil Aviation App is a customizable digital instrument panel that aims to breach the gap between emerging wireless avionics and limited compatibility with Advanced Navigation Apps. Display information from wireless devices such as iLevil3, B.O.M or other GDL90 devices, simultaneously, while using your preferred navigation app. The Levil Aviation App utilizes iOS multi-tasking features to work side-by-side, full screen, or slide-over, where modules can be shown on top of your navigation app of choice. The current version includes interfaces for traffic avoidance, engine monitoring, EFIS, angle of attack monitoring, autopilot interface, and much more.
Screenshots
Verdict
The clearest difference is update cadence: Levil Aviation at every 3 months against Alt's every 15 months. Levil Aviation also leads on ratings volume (382 vs 8) and rating (4.7 vs 4.5). On price, review sentiment, ads and in-app purchases 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.
Levil Aviation holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Levil Aviation has 382 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 76% of Alt's written reviews are positive against 82% of Levil Aviation's.
Alt ships an update every 15 months, Levil Aviation every 3 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | Alt | Levil Aviation |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 4.7 (382 ratings) — better |
| Positive reviews | 76.5% of reviews | 82.4% of reviews — better |
| Number of ratings | 8 | 382 — better |
| Update frequency | Every 15 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Hinman | Levil Technology |
Customer experience
Alt
Levil Aviation
Bugs and requests
Alt
Not enough reviews yet to summarise bugs or requests.
Levil Aviation
Reported bugs
3 issues- App will not start, crashes after sign-in/skip screen
- Version 2.0 does not display pitot and static data
- Autopilot nose dives without pitot/static data
Requested features
5 requests- Attitude indicator without EFIS for classic 6 pack
- Ability to choose different flap settings for AOA
- AOA gauge with standard blue ring
- Android phone support
- Fix Rotax 912/914 CHT cylinder assignment issue
In-app purchases
Alt
No in-app purchases
Levil Aviation
No in-app purchases
