Units+ vs Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units+
Easily convert between over 260 measurement units across 22 categories and get real-time currency exchange rates for more than 160 currencies. Quickly find units or bookmark frequent conversions for efficient use.
- 260+ measurement units
- 22 unit categories
- 160+ currencies
- Real-time exchange rates
- Unit search
- Bookmarking conversions
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Convert values between commonly used measurement units. The app supports more than 260 units in 22 different categories. It also support currency exchange rates for more than 160 currencies. The app makes it easy to search for units within a specific category, or across all categories. And supports bookmarking the conversions you use most often. Here is a sorted list of all included unit categories: - Acceleration - Angle - Area - Data Storage - Data Transfer - Density - Electric Current - Energy - Flow - Force - Fuel Consumption - Length - Mass (Weight) - Mass Flow - Metric Prefix - Power - Pressure - Speed (Velocity) - Temperature - Time - Torque - Volume
Unit Converter
Easily perform instant unit conversions across a vast array of categories, from engineering to everyday life. Features include dark mode, favorites, and dual language support for enhanced usability. Ideal for scientists, engineers, students, and anyone needing quick, accurate conversions.
- Extensive conversion categories
- Dark mode for night use
- Favorite frequently used conversions
- Dual language support
- Offline functionality
- User feedback option
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Convert 1,000+ units across 80+ converters—from everyday measurements to advanced engineering and scientific units. Unit Converter - Scientific is fast, accurate, free, and completely ad-free. WHY YOU’LL LOVE IT • 80+ converters and 1,000+ units • Metric and imperial measurement systems • Fast and accurate results • Standard unit conversions work offline • Save frequently used conversions as favorites • Comfortable dark mode • No account required • Available in English, Turkish, German, French, Spanish, and Brazilian Portuguese • All conversion tools remain free; optional tips unlock no features POPULAR CONVERSIONS • Length: centimeters, inches, meters, feet, miles, and kilometers • Weight and mass: kilograms, pounds, ounces, and grams • Temperature: Celsius, Fahrenheit, and Kelvin • Volume: milliliters, liters, cups, and gallons • Speed: miles per hour and kilometers per hour • Pressure: PSI, bar, pascal, and more • Currency conversion ADVANCED SCIENTIFIC AND ENGINEERING TOOLS Convert energy, power, force, torque, density, acceleration, flow, viscosity, electricity, magnetism, light, heat transfer, and radiology units—all in one clean interface. Whether you are an engineer, scientist, student, traveler, or simply need a quick everyday conversion, Unit Converter - Scientific gives you the tools you need without ads or unnecessary complexity.
Screenshots
Verdict
The clearest difference is in-app purchases: Unit Converter at none against Units+'s 2. Unit Converter also leads on ads (none vs shown) and update cadence (weekly vs every 5 months). Units+'s advantage is ratings volume (375 vs 18) and device support (3 vs 1). On price, rating and review sentiment 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
Both are free to download. Units+ sells 2 one-off in-app purchases. Unit Converter asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Units+ against 4.9 for Unit Converter. That said, the two scores are not equally well evidenced: Units+ has 375 ratings behind it against 18, so its average is the more settled of the two. Written reviews are what separate them: 85% of Units+'s written reviews are positive against 90% of Unit Converter's.
Units+ ships an update every 5 months, Unit Converter weekly. The most recent releases landed on October 20, 2026 and October 15, 2026 respectively.
| Parameter | Units+ | Unit Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (375 ratings) | 4.9 (18 ratings) — better |
| Positive reviews | 85.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 375 — better | 18 |
| Update frequency | Every 5 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Hebaallah Hossameldien | Ahmet Burak Albayrak |
Customer experience
Units+
Unit Converter
Bugs and requests
Units+
Reported bugs
1 issue- Ads don't have an X to close
Requested features
2 requests- Add a Notification Center widget
- Way to mark favorite types of conversions
Unit Converter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Units+
- Unlock Pro FeaturesFree
- Remove Ads$1.99
Unit Converter
No in-app purchases
Questions
Is Units+ free?
Is Unit Converter free?
Which has better reviews, Units+ or Unit Converter?
Do Units+ or Unit Converter have ads?
Which is updated more often, Units+ or Unit Converter?
Other comparisons
