fuelTool vs Time Calculator HH
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
fuelTool
This aviation tool simplifies fuel uplift and weight calculations, allowing users to determine limiting mass, allowable fuel, or payload. It supports various unit conversions and can store aircraft data for faster calculations.
- Fuel uplift calculation (LBS/KG to LTR)
- Split fuel calculation for left & right tanks
- Weight calculation for limiting mass, fuel, or payload
- Crosswind calculation with METAR data
- Aircraft data management (add, edit, delete)
- Downloadable company aircraft data
Read full descriptionHide full description
fuelTool is a fuel uplift and (limiting) weight calculator and can be used in general by any one in aviation to calculate limiting mass very easily. If you or your company supplies information about the DOW, DOI and limiting masses, then your aircrafts can be downloaded into the app, which makes the calculating even faster, because all the relevant figures are already in place! Features: - Calculate refueling from LBS->LTR or KG->LTR, and split Left & Right Tanks - Calculate with fuel density figures (after re-feuling) - Weight calculation (determine limiting mass, allowable fuel or payload) - Crosswind calculation, with actual METAR info (if you have an internet connection) - Maintain list of aircrafts (add/edit/delete) - Download your company's aircraft data (if made available to me)
Time Calculator HH
Easily add and subtract hours and minutes with this intuitive tool. Features quick calculation buttons, operation history, and support for negative numbers. Save time on manual calculations and manage your time more efficiently.
- Intuitive interface
- Quick calculation buttons
- Operation history
- Negative number support
- Automatic save
- Light and dark modes
Read full descriptionHide full description
Calculate hours and minutes with the simplicity of a standard calculator. Add and subtract durations, or multiply and divide them by a value. Use the :00, :15, :30 and :45 quick keys to enter minutes faster. Follow every operation in the always-visible history and view the total in both HH:mm format and decimal hours. KEY FEATURES • Addition, subtraction, multiplication and division • Quick keys for entering minutes • Complete calculation history • Totals in HH:mm format and decimal hours • Automatic, light or dark appearance • Optimized interface for iPhone and iPad • No ads • No tracking Fast, clear and immediate. Now time really counts.
Screenshots
Verdict
fuelTool and Time Calculator HH both sit at 5.0 stars, but that hides the real split: 100% of Time Calculator HH's written reviews are positive against 50% of fuelTool's. fuelTool's advantage is iOS requirement (8.0 vs 16.0). On price, rating, ratings volume and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for fuelTool against 5.0 for Time Calculator HH. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 50% of fuelTool's written reviews are positive against 100% of Time Calculator HH's.
fuelTool ships an update every 3 months, Time Calculator HH every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | fuelTool | Time Calculator HH |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 2 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Groesbeek | Erminio Ricciardi |
Customer experience
fuelTool
Time Calculator HH
In-app purchases
fuelTool
No in-app purchases
Time Calculator HH
No in-app purchases








