Refuelling vs FlyTool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Refuelling
This app helps pilots calculate aircraft fuel requirements with advanced error management. It allows for unlimited aircraft entries and custom parameters, providing detailed fuel chit and techlog entries. Visualizations and volumetric checks ensure accuracy and compliance.
- Unlimited aircraft entry
- Custom aircraft parameters
- Built-in error management
- Detailed fuel chit and techlog
- Pictorial fuel distribution view
- Volumetric and weight checks
- Data retention and verification
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Enter as many aircraft as you like and set your own parameters! Incredibly detailed and sophisticated App with built-in error management. EASY TO USE - Ensure correct aircraft selected - Enter required ramp fuel - Enter remaining fuel - Press calculate! - Techlog and fuel chit entries will be displayed DATA RETENTION - Remembers information used - Allows subsequent data input verification, unlike a calculator UNLIMITED AIRCRAFT - Designed to allow entry of aircraft type-specific parameters for as many aircraft and variants as desired - Set default specific gravity for each aircraft for ease - Set a preference for Separate Tanks if your aircraft does not have a fuel totaliser to avoid mental addition - Elect to display 'FULL' on the fuel chit when the wing tanks are full or the actual value - Supports rounding for aircraft that refuel in 100 Kg/Lb increments when using a 3-tank arrangement - Add company-specific volumetric tolerances for each aircraft to verify fuel weight and/or volume is within prescribed limits - Only needs to be done once PICTORIAL - Once fuel requirements have been calculated, tap anywhere on the Fuel Chit section to see a pictogram of the aircraft showing fuel distribution in each tank along with total fuel required and total uplift required! VOLUMETRIC CHECK - If required, it is possible to check both fuel weight and volume are within set tolerance. ERROR MANAGEMENT - Guards against entry errors using aircraft data - Automatic Universal App. See Developer website. Designed for iPhone but works just as well on iPad.
FlyTool
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A useful app for Flight Instructors, Students and Pilots. Utilities included: • WEIGHT & BALANCE - Easily configurable Weight & Balance calculations for multiple aircraft - Graphs of the Centre of Gravity vs weight - W&B configuration supports multiple distance and weight units, multiple fuel types and differing station numbers • PLOGs - Calculates the Pilot Log for wind-corrected headings and time to fly a route - User can add more PLOG lines • WINDSTAR / MAX DRIFT CALCULATIONS FOR DIVERSIONS - User enters the wind and TAS and drift and groundspeed are calculated for the 8 compass points - Calculates Max Drift • PRESSURE ALTITUDE, DENSITY ALTITUDE AND TAS CALCULATIONS - Allows the user to input height, temperature and IAS and see their effect on the PA, DA and TAS • PERFORMANCE SAFETY FACTORS - A reminder for the pilot of the safety factors used for performance calculations • MORSE CODE - Shows the morse code for each letter - Press on a letter or the morse code and it will play the morse sound • A HOLDS PAGE FOR IMC FLYING - Input the hold's inbound track, the joining heading, wind and TAS and it calculates the type of Hold join required, the 'Gate' angles and the drift corrections needed in the hold - The type of join required can be viewed as an image - A reminder of what a standard, right-hand hold and a non-standard left-hand hold look like is included
Screenshots
Verdict
The clearest difference is update cadence: FlyTool at weekly against Refuelling's every 2 months. Refuelling's advantage is price ($4.99 vs $9.99). On ads, in-app purchases, device support and iOS requirement 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
Refuelling costs $4.99 and FlyTool $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Refuelling ships an update every 2 months, FlyTool weekly. The most recent releases landed on August 3, 2026 and September 16, 2026 respectively.
| Parameter | Refuelling | FlyTool |
|---|---|---|
| Price | $4.99 — better | $9.99 |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 2 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Chris Godesar | Thornbird Consultancy Ltd |
In-app purchases
Refuelling
No in-app purchases
FlyTool
No in-app purchases









