# Units vs LabTimer

The clearest difference is in-app purchases: LabTimer at none against Units's 3. LabTimer also leads on ads (none vs shown) and review sentiment (91% vs 60%). Units's advantage is update cadence (monthly vs every 11 months). On price, ratings volume and device support there is nothing between them.

Both are free to download. Units sells 3 one-off in-app purchases. LabTimer asks for nothing beyond the download.

LabTimer holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 150 and 174 respectively. Written reviews point the same way: 60% of Units's written reviews are positive against 91% of LabTimer's.

Units ships an update monthly, LabTimer every 11 months. The most recent releases landed on September 25, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Units | LabTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (150 ratings)](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017/reviews) | **[4.0 (174 ratings)](https://appshunter.io/ios/app/labtimer/id292202454/reviews)** |
| Number of ratings | 150 | **174** |
| Positive reviews | 60.0% of reviews | **90.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2 MB | 1 MB |
| Requires iOS | 13.5 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homegrown Software Ltd](https://appshunter.io/developer/406645730) | [0x0c](https://appshunter.io/developer/292202457) |

## What reviewers say

### Units

[App page](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017)

Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.

**Highlights:** Hundreds of units across 43 categories, Daily updated currency exchange rates, Hide unused units, Reorder units and categories, Universal app support (iPhone, iPod touch, iPad)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |

**What reviewers like**

- 🚀 Efficient and fast conversions
- 👍 Comprehensive list of units
- 🔍 Customizable unit selection
- 💰 Free app with optional paid version
- 🔧 Useful for engineering and technical work

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🕰️ Outdated currency conversion rates
- 🔍 Too many unit categories, hard to navigate
- 💰 Ads in free version
- 📏 Ruler feature not accurate on some devices

**Reported bugs**

- Crashes when clearing input fields
- Numerical keypad covers conversion results
- Incompatibility issues with newer iOS versions
- Ruler measurements not accurate on all devices

**Requested features**

- Add nautical units (miles, knots)
- Improve currency conversion accuracy and updates
- Allow customization of visible unit categories
- Add more clothing/shoe size conversions
- Improve user interface and search functionality


### LabTimer

[App page](https://appshunter.io/ios/app/labtimer/id292202454)

This app provides multiple configurable timers for various uses, from scientific experiments to everyday tasks like cooking and workouts. It features a clear display, customizable labels, and the ability to repeat count-down timers.

**Highlights:** Four configurable timers, Count-up and count-down modes, Large display and buttons, Customizable text labels, Repeat count-down functionality, Disables iPod sleep

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple, clean, and intuitive user interface
- 🎯 Multiple timers (up to 16) running simultaneously
- ⏱️ Ability to count up and count down
- 🔄 Timers continue running in background/other apps
- 💾 Saves timer settings for future use

**What reviewers complain about**

- 🐛 Notifications not working properly on iPad
- 🐛 App crashes or won't open on some iOS versions
- 🐛 Alarm doesn't work when app is locked/in background
- 📱 No landscape/auto-rotate orientation support
- 🔊 Alarm sound too short and soft

**Reported bugs**

- iPad notifications not displaying correctly
- App fails to open on iPhone X with iOS 14.4
- Alarm non-functional on iOS 5 in lock mode
- No audio output on iOS 9.x
- Timer stops when iPhone enters sleep mode (older versions)

**Requested features**

- Landscape orientation support (especially for iPad)
- Keyboard/direct number input for faster time entry
- Multiple selectable alarm sounds/tones
- Ability to customize alarm volume independently
- Countdown voice announcements


## Frequently asked questions

### Is Units free?

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

### Is LabTimer free?

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

### Which has better reviews, Units or LabTimer?

LabTimer is rated higher. Units averages 3.6 out of 5 from 150 ratings, while LabTimer averages 4.0 from 174 ratings.

### Do Units or LabTimer have ads?

Units shows ads; LabTimer does not.

### Which is updated more often, Units or LabTimer?

Units ships an update monthly, and LabTimer every 11 months. Most recently, Units was updated on September 25, 2026 and LabTimer on August 26, 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.*