SkyTimer 4+

Flight Timer & Fuel Computer

Framework Learning, LLC

    • 4.1 • 16 Ratings
    • Free
    • Offers In-App Purchases


SkyTimer: Flight timer, fuel computer and tank timer for your iPhone & Apple Watch

Record flight and block times, receive tank timer and in-flight alerts, calculate fuel estimates and endurance, smart detection of takeoffs and landings, automatically log airports, and much more...right from your phone or wrist.


SkyTimer is a flight logger and fuel computer designed to provide important information at-a-glance with an intuitive interface that's easy to use in the cockpit to make your flights more efficient.

- Block, flight, and fuel tank timers are managed with simple one-tap controls to keep things quick and organized in the cockpit.
- SkyTimer automatically calculates in-flight fuel use, endurance, and quantity estimates on-the-fly using time-on-tanks and provided fuel burn rates.
- Update fuel flow rates dynamically in-flight for accurate estimates of fuel burn. endurance, and remaining fuel.
- SkyTimer's Smart Track feature uses GPS speed and aircraft Vso stall speed to automatically track takeoffs and landings.
- Get alerts on your phone or watch when it's time to change tanks or when fuel tank estimates reach levels you define.
- Your trip and aircraft data is automatically synced and backed up across your devices using iCloud. Save a flight or aircraft on your phone, see it on your watch…and vice versa.
- The unique Smart Balance feature calculates optimal tank timer duration based on tank quantity and fuel flow to keep fuel tanks balanced.
- An on-board worldwide airport database means SkyTimer automatically logs departure, arrival, and intermediate stop airports--even without Internet access.
- Note Hobbs or Tach times for each flight with a simple scroll on your phone or Digital Crown on your watch.
- Detailed flight logs of your past trips can include flight and block times, airports, out/off/on/in times, fuel details, and time-on-tanks...all synced across devices.


SkyTimer for Apple Watch was developed to provide full access to every SkyTimer feature. In fact, SkyTimer for Apple Watch was built before the iPhone app to ensure it wasn't simply created as an afterthought.

- Want to leave your phone on the ground? SkyTimer for Apple Watch will work fully on its own. Your flight log will sync with your phone with iCloud.
- Bring your phone along too and control SkyTimer from either device during flight--they'll stay in sync like magic if you have SkyTimer Plus.
- SkyTimer for Apple Watch is included with the iPhone app. And unlocking SkyTimer Plus unlocks all features on SkyTimer for Apple Watch too.
- No watch? Not a problem. You still get full functionality on the iPhone app with SkyTimer Plus.


Download SkyTimer for free and try it out--you'll be able to track block and flight times and log flights at no charge. 

With a simple in-app subscription to SkyTimer Plus, you can unlock all features on your phone and watch including:

- Fuel Quantity Tracking
- Store Unlimited Flights
- Tank Timer Management
- Auto-Track Takeoffs & Landings
- Create Multiple Aircraft
- iCloud Sync & Backup
- In-flight Phone/Watch Sync

$0.99 monthly, $9.99 annually


Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. After purchase, you can manage your subscriptions in App Store account settings.


Privacy Policy:

Terms of Service:

What’s New

Version 1.9.6

• Bug fixes for older Apple Watches

• Streamlined Apple Watch interface
• Improvements to iPhone widget syncing when using both iPhone and Apple Watch.
• Increase of maximum fuel per tank
• Trip sort order/filter improvements
• Code optimizations to make things run more smoothly

Ratings and Reviews

4.1 out of 5
16 Ratings

16 Ratings

mcgoughman ,

More than 2 fuel tank option would help

Great app, just upgraded to Pro and realized you only have options for up to two fuel tanks. I fly an aircraft with four fuel tanks and must have missed the details in the description. Hopefully more fuel tanks can be added soon.

JGrits1 ,


The app only supports 2 fuel tanks but you don’t really learn this until you buy it. It’s essentially useless for me for the purpose I intended, which is to track fuel in all four (or six) tanks, both in my aircraft and the other one I fly. Refund please and I will reconsider purchasing when this serious shortcoming has been addressed.

Mick8888888888 ,

Love it

I love this app so far, but can there be some setting to always start a trip with full tanks or a predetermined amount? There’s a lot of clicks/scrolling on my watch to get it started

Developer Response ,

Hi, Mick. You can turn on "Rollover Fuel" within the settings of the app. When starting a new trip, that will prepopulate the fuel that was estimated at the end of the last trip. I'll also be adding functionality in an upcoming version to allow you to define a standard starting fuel amount to easily toggle to that.

App Privacy

The developer, Framework Learning, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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