Separate hour meters
Airframe hours, plus hours for each engine and each propeller.
Aircraft maintenanceComing soon
For owners of piston singles and twins. Wrench Wise™ tracks the airframe, every engine and every propeller on their own hour meters, and puts the calendar items (annual condition inspection, ELT, transponder) where you can’t miss them.
Coming soon. Aircraft isn’t in the app yet; it arrives in an upcoming update. Get Wrench Wise™ now for everything else you own.
Tracks airframe, engine and propeller hours, plus time
Not an airworthiness system. See the note below the schedule.

Airframe & calendar
Each engine
Each propeller
Built for it
Airframe hours, plus hours for each engine and each propeller.
Add one engine or two (left and right), each with its own oil, plug and magneto schedule. A twin with both propellers needs Pro.
Annual condition inspection reminder, ELT, transponder, and the altimeter and static test for IFR.
Registration and serial number, tricycle or tailwheel gear, and every service with receipts.
Day-one schedule
These are the items Wrench Wise™ creates for a new aircraft. Adjust any interval or add your own.
| Item | Every |
|---|---|
| Tires & Brakes — Inspect | 100 hrs or 12 months |
| Wheel Bearings — Clean & Repack | 200 hrs or 12 months |
| Control Cables & Hinges — Inspect & Lubricate | 100 hrs or 12 months |
| Battery — Capacity Check | 12 months |
| ELT — Inspect | 12 months |
| Transponder — Test | 24 months |
| Altimeter & Static System — Test (IFR only) | 24 months |
| Annual Condition Inspection — Date Reminder | 12 months |
| Item | Every |
|---|---|
| Oil & Filter Change | 50 hrs or 4 months |
| Spark Plugs — Clean, Gap & Rotate | 100 hrs |
| Spark Plugs — Replace | 400 hrs |
| Magneto Timing Check | 100 hrs |
| Magneto Internal Inspection | 500 hrs |
| Air Filter — Replace | 100 hrs or 12 months |
| Engine Hoses — Replace | 60 months |
| Item | Every |
|---|---|
| Propeller — Inspect | 100 hrs or 12 months |
| Propeller — Overhaul | 2,000 hrs or 60 months |
Whichever comes first. Intervals are general guidance; your owner’s manual is the authority for your vehicle.
Important: Wrench Wise™ is not an airworthiness system. It does not track Airworthiness Directives, inspection sign-offs or compliance, and it does not determine airworthiness. Keep your logbooks and required records as you do today.

Download Wrench Wise™, add your first vehicle, and see its schedule in under a minute. Free, and no account needed.