# Time Calculator HH vs Flight Shift

The clearest difference is update cadence: Flight Shift at every 3 weeks against Time Calculator HH's every 2 months. Flight Shift also leads on iOS requirement (14.0 vs 16.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

Time Calculator HH ships an update every 2 months, Flight Shift every 3 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Time Calculator HH | Flight Shift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/time-calculator-hhmm/id1506215297/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 9 MB | 6 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Erminio Ricciardi](https://appshunter.io/developer/1111688963) | [Victor Ermilov](https://appshunter.io/developer/1678720263) |

## What reviewers say

### Time Calculator HH

[App page](https://appshunter.io/ios/app/time-calculator-hhmm/id1506215297)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Flight Shift

[App page](https://appshunter.io/ios/app/flight-shift/id6741475006)

This app automates the calculation of flight crew duty and rest times, adhering to Russian Ministry of Transport regulations. It accounts for various factors like flight class, unexpected events, and post-flight duties to ensure compliance and optimize crew schedules.

**Highlights:** Automated duty and rest time calculation, Accounts for various flight conditions, Visual time scale, Offline functionality, Splits flight shifts, Calculates minimum rest periods, Determines engine start deadlines

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculator HH free?

Time Calculator HH is free to download, with no in-app purchases.

### Is Flight Shift free?

Flight Shift is free to download, with no in-app purchases.

### Do Time Calculator HH or Flight Shift have ads?

Neither Time Calculator HH nor Flight Shift shows ads.

### Which is updated more often, Time Calculator HH or Flight Shift?

Time Calculator HH ships an update every 2 months, and Flight Shift every 3 weeks. Most recently, Time Calculator HH was updated on October 24, 2026 and Flight Shift on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*