Comparison

fuelTool vs Time Calculator HH

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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)

About

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.

Highlights
  • Intuitive interface
  • Quick calculation buttons
  • Operation history
  • Negative number support
  • Automatic save
  • Light and dark modes
Features
Read 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

fuelTool4 screens
Time Calculator HH4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
fuelTool versus Time Calculator HH: the parameters behind the verdict, then further details
ParameterfuelToolTime Calculator HH
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings12 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better16.0
Further details — not scored
Size2 MB10 MB
Age rating4+4+
DeveloperMartin GroesbeekErminio Ricciardi

Customer experience

fuelTool

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Time Calculator HH

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

fuelTool

No in-app purchases

None

Time Calculator HH

No in-app purchases

Questions

Is fuelTool free?
fuelTool is free to download, with no in-app purchases.
Is Time Calculator HH free?
Time Calculator HH is free to download, with no in-app purchases.
Which has better reviews, fuelTool or Time Calculator HH?
fuelTool and Time Calculator HH are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do fuelTool or Time Calculator HH have ads?
Neither fuelTool nor Time Calculator HH shows ads.
Which is updated more often, fuelTool or Time Calculator HH?
fuelTool ships an update every 3 months, and Time Calculator HH every 2 months. Most recently, fuelTool was updated on November 1, 2026 and Time Calculator HH on November 3, 2026.

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