# Time Calculator vs Unit Keeper

The clearest difference is in-app purchases: Unit Keeper at none against Time Calculator's 6. Time Calculator's advantage is update cadence (every 2 weeks vs every 6 months) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Time Calculator sells 6 in-app purchases, starting at $2.99 per month. Unit Keeper asks for nothing beyond the download.

Time Calculator ships an update every 2 weeks, Unit Keeper every 6 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Time Calculator | Unit Keeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.9K ratings)](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079/reviews)** | — |
| Number of ratings | **2.9K** | — |
| Positive reviews | 78.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Freemium | — |
| Size | 17 MB | 3 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oval Software Oy](https://appshunter.io/developer/1438258178) | [Eleanor Spenceley](https://appshunter.io/developer/1592909450) |

## What reviewers say

### Time Calculator

[App page](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079)

This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.

**Highlights:** Work time tracking, Shift scheduling, Date difference calculation, Countdown timers, Time zone comparison, Age calculation, Time conversion

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Calculator Pro Monthly | $2.99 | per month |
| Time Calculator Premium Monthl | $3.99 | per month |
| Time Calculator Premium | $14.99 | per year |
| Time Calculator Premium | $19.99 | per year |
| Time Calculator Premium | $19.99 | one-time |
| Unlock all features | $29.99 | one-time |

**What reviewers like**

- 🚀 Great Time calculator App
- 👍 Handy and easy to use
- 👍 Excellent
- 👍 Awesome
- 👍 Useful

**What reviewers complain about**

- 🐛 Editing
- 🐛 Not designed for use on more than one device?
- 💰 Too Expensive
- 💰 需要收费
- 💰 Not worth the money

**Reported bugs**

- Unable to upgrade
- Calculator does not show hours, minutes and seconds. Only hour and minutes
- Seconds don't work on a TIME calculator!
- The last update is bad, it doesn't work!
- The settings doesn't work after the last update

**Requested features**

- Overtime calculator
- Decimals for time calculator
- Ability to delete entries
- Ability to edit or pick the days on the calendar
- Ability to have the work time calculator on Mac


### Unit Keeper

[App page](https://appshunter.io/ios/app/unit-keeper/id1592909448)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculator free?

Time Calculator is free to download, with in-app purchases available.

### Is Unit Keeper free?

Unit Keeper is free to download, with no in-app purchases.

### Do Time Calculator or Unit Keeper have ads?

Neither Time Calculator nor Unit Keeper shows ads.

### Which is updated more often, Time Calculator or Unit Keeper?

Time Calculator ships an update every 2 weeks, and Unit Keeper every 6 months. Most recently, Time Calculator was updated on October 26, 2026 and Unit Keeper on October 25, 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.*