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TLAR

TLAR

Aircraft Performance

5 ratings
4 reviews
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Free
In-App Purchases

Details

Released
November 6, 2022
Updated
October 14, 2026

Developer

Owyhee Aviation, LLC
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About

This app calculates aircraft performance for general aviation pilots, including takeoff, climb, cruise, and landing. It offers basic calculations for pre-loaded aircraft in the free version, with advanced real-time, dynamic performance metrics and emergency glide functionality in its subscription tiers.

✓Aircraft performance calculations
✓Real-time dynamic recalculations
✓Emergency glide functionality
✓Heads-up display mode
✓Global airfield database
✓Customizable safety margins
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What's New in TLAR

8.4

October 14, 2026

- [ ] Significant performance accuracy improvements for RV10 regarding Flaps partial and up stall speeds, which directly affects Vref and emergency turnback computations - all subscriptions - [ ] Fixed a bug where the new UI would render some menus poorly if the user had .light background set as the default for iOS - all subscriptions - [ ] Added CPU load chicklet -all subscriptions - [ ] Added Altitude lost per 360 chicklet -expert - [ ] Improved Position tile -pro, -expert - [ ] Xplane ingested temperature and pressure corrected - expert - [ ] Terrain awareness (all -expert) - [ ] Hi res terrain and tree data close to the runway (10m, 1m) - [ ] User-selectable Regional resolutions(40m, 75m, 150m, 300m, or 600m) for enroute - [ ] Vertical profiles with auto-fence height computation - [ ] 3D Terrain visualizer with “drone mode” to fly around inside the data, LIVE, Obstacle modes - [ ] Turnback routes respect terrain - [ ] Glide footprint and FPA markers terrain-aware - [ ] Displayed turnback route now wind-accurate - [ ] Hi-resolution slope for takeoff and landing portions of the LZ

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Subscriptions & In-App Purchases

pro

unlocks TLAR-pro capabilities

$1.991 Month
How to cancel TLAR subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Very US centric

Needs to provide an option to show baro in Hpa and fuel in litres.
NRNot good for this region

Response from developer

You can select units using the unit settings menu. Baro options are inHg and Millibars. Fuel options are gallons, liters, pounds and kilograms.

Really useful tool

Very helpful tool. Highly recommend it! And inexpensive on top of it all!
AAle100019

Kind of confusing, but does what it says…

I met the author at OSH, AirVenture and was sold. This data should be in all EFBs. A lot of information in a small space. Needs a iPad version.
CC172Pilot

No Brainer

This is a Fantastic tool for your flight/Simulator flying. The pricing at $1/month is a Super Bargin. If you ever wanted a quick way to see and use your aircraft’s performance, this is IT!!
MMac577

FAQ

What aircraft types does TLAR support?

TLAR supports a wide range of single-engine piston-powered aircraft. The free version includes pre-loaded models like the Cessna 172 and Piper J3. The Expert version allows for custom aircraft type creation.

How does TLAR's Pro version differ from the basic version?

The Pro version offers dynamic, real-time performance recalculations based on 3D position and updated weather. It also includes an airfield database, glide path calculations, and visual/audible approach stability displays.

What is the emergency glide functionality in TLAR's Expert version?

The Expert version provides patent-pending emergency glide functionality. It calculates your wind-corrected glide footprint and announces your latest abort point, showing a route back to the runway with predicted altitude.

What are the subscription costs for TLAR?

TLAR offers subscription plans for its advanced features. The Pro version is $1.99 per month, and the Expert version is $3.99 per month.

Does TLAR have ads?

No, TLAR does not contain advertisements. The app is free to download and use for basic features, with optional in-app purchases for Pro and Expert versions.

What devices is TLAR compatible with?

TLAR is currently supported on iPhones and iPods. It has an age rating of 4+.

How often is TLAR updated?

TLAR was last updated on March 25, 2026, indicating a recent development cycle. The latest version available is 7.88.

Can TLAR be used offline?

The basic version of TLAR functions like a calculator, predicting performance statically. The Pro and Expert versions, which offer real-time and dynamic features, likely require an active internet connection for weather and airfield data.