Comparison

Hour Calc vs TimeStack Pilot

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

Head to head
About

Hour Calc

Converts time between hours:minutes and decimal hours formats. Features include easy input, minute validation, and autocompletion for readability. Supports iPhone and iPad with autosized tables.

Highlights
  • Hours:minutes to decimal hours conversion
  • Decimal hours to hours:minutes conversion
  • Easy number keypad input
  • Minute input validation
  • Autocompletion for readability
  • Native iPad support
Features
Read full description

A small utility that converts hours:minutes format to decimal hours (h.xx), also called industrial hours, and vice versa. Features: • Easy input with number keypad on iPhone and iPod Touch • Check for minute input and warning on more than 59min • Autocompletion if less than 10min are entered for better readability (5h 2min will show as 5:02) • Independent tables for both calculators • Possibility to delete single values in both tables for correction • Clear button for complete deletion of tables • Autosized tables on iPhone 5 showing 5 entries • Native iPad support • 100% add free Please give a good rating if you like the app to support further development. For any questions send a email.

About

TimeStack Pilot

Read full description

TimeStack Pilot is a clean and practical calculator for structured time values. It helps you calculate and convert day:hour:minute, hour:minute, minutes, and optional second-based time values. Designed for aviation, logbooks, block times, duty calculations, and other time-based tasks, TimeStack Pilot focuses on fast input and clear results. Features: • Fast calculator for structured time values • Supports d:h:m, h:m, minutes, and optional seconds • Clear multi-format result display • Customizable display settings • Optional background image • App language selection • No account required • Works fully on device • No tracking TimeStack Pilot is built for quick input, flexible display options, and distraction-free daily use.

Screenshots

Hour Calc4 screens
TimeStack Pilot4 screens

Verdict

The call

The clearest difference is price: TimeStack Pilot at Free against Hour Calc's $0.99. TimeStack Pilot also leads on update cadence (every 3 days vs every 3 months). Hour Calc's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 26.0). On ads and in-app purchases 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

TimeStack Pilot is free to download; Hour Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Hour Calc ships an update every 3 months, TimeStack Pilot every 3 days. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Hour Calc versus TimeStack Pilot: the parameters behind the verdict, then further details
ParameterHour CalcTimeStack Pilot
Price$0.99Free — better
Rating4.0 (1 ratings) — better—
Positive reviews87.5% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better26.0
Further details — not scored
Size8 MB29 MB
Age rating4+4+
DeveloperGuenter FreytagChristoph Kindl

In-app purchases

None

Hour Calc

No in-app purchases

None

TimeStack Pilot

No in-app purchases

Questions

Is Hour Calc free?
Hour Calc costs $0.99, with no in-app purchases.
Is TimeStack Pilot free?
TimeStack Pilot is free to download, with no in-app purchases.
Do Hour Calc or TimeStack Pilot have ads?
Neither Hour Calc nor TimeStack Pilot shows ads.
Which is updated more often, Hour Calc or TimeStack Pilot?
Hour Calc ships an update every 3 months, and TimeStack Pilot every 3 days. Most recently, Hour Calc was updated on October 8, 2026 and TimeStack Pilot on October 15, 2026.

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