Converter vs Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Converter
This app offers a comprehensive unit and hardness conversion tool with an easy-to-use interface. It includes currency conversion with updated exchange rates, over 300 engineering and scientific units, and a specialized hardness converter. Additional features like timezone conversion, pace calculation, and a standard calculator enhance its utility.
- Currency converter with live exchange rates
- Over 300 engineering and scientific units
- Specialized hardness converter
- Timezone conversion
- Running pace calculator
- Integrated standard calculator
- Conversion history log
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Trelleborg’s “Unit and Hardness Converter” converts a comprehensive list of units (incl. currencies) in an easy way. In addition, the app has a set of other useful features on board, like timezone conversion, percentage calculations, a running pace calculator and more What our users say: “Have been using it forever, never tried other converter as this one does the job perfectly” - Lazareth_fr “Fabulous resource, but also a functional masterpiece!” -Otto. “This is needed by all engineers. So simple and easy to use” -JLa03. FEATURES • Easy-to-use interface • Currency converter with in-app exchange rate update functionality • Over 300 engineering and scientific conversion units in 32 categories • Hardness converter with 16 conversion tables based on ASTM E140-07 and ISO-18265 for quick conversion between different scales • Video library: features the extensive Trelleborg Sealing Solutions YouTube library • Toggle between units • Switch between dark and white theme • Conversion history log • Create favorite lists • Standard calculator integrated with unit converter DIMENSIONS • Area • Currency • Current • Data • Density • Distance • Dynamic Viscosity • Energy • Force • Frequency • Kinematic Viscosity • Moment of inertia • Power • Prefixes • Pressure • Speed • Strength • Temperature • Time • Torque • Volume • Weight • Fuel Consumption • Glucose • Vacuum • Numbers • Illumination • Radioactivity • Radiation (absorbed) • Angles • Volume Flow Rate • Calorie • Metric Prefixes • Typography • Electric Charge OTHER MISCELLANEOUS CATEGORIES • Timezone conversion • Clothing sizes / Shoe sizes • International power plugs • Running pace calculator • Percentage calculator • Pace • Hex, Binary, Decimal • BMI (metric/inch) HARDNESS SCALES INCLUDED • Rockwell (HRC, HRA, HRD, HRF, HRG, HRE, HR-15-N, HR-30N, HR-45-N, HR45-T, HR-15T, HR-30T, HR45-T) • Brinell (HBW, HBS) • Vickers (HV, • Knoop (HK) The app is available in English, German and Chinese languages. Download now or contact us with any questions.
Unit Converter
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Introducing Unit Converter - the ultimate tool for hassle-free unit conversions on your mobile device! Whether you're a student, professional, or simply someone who frequently needs to convert units, this app is designed to make your life easier. With a sleek and intuitive interface, Unit Converter offers a wide range of conversion options covering various categories, including length, weight, volume, temperature, time, speed, and more. No more searching through numerous websites or fumbling with complex formulas - this app puts all the conversion power in the palm of your hand. You can also bookmark/save or share the conversions.
Screenshots
Verdict
The clearest difference is ads: Converter at none against Unit Converter's shown. Converter also leads on update cadence (every 2 months vs every 8 months). On price, in-app purchases, device support and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
Converter ships an update every 2 months, Unit Converter every 8 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | Converter | Unit Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (981 ratings) — better | — |
| Positive reviews | 93.9% of reviews | — |
| Number of ratings | 981 — better | — |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 6 MB |
| Age rating | 12+ | 4+ |
| Developer | Trelleborg Sealing Solutions | RAJAMRAGHU TECH |
Bugs and requests
Converter
Reported bugs
2 issues- Occasional crashes on startup for non-English/German users
- Conversion from meters to feet does not show inches
Requested features
3 requests- Add fuel efficiency conversions
- Allow users to set favorite conversions as default
- Improve currency conversion rate updates
Unit Converter
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Converter
No in-app purchases
Unit Converter
No in-app purchases
Questions
Is Converter free?
Is Unit Converter free?
Do Converter or Unit Converter have ads?
Which is updated more often, Converter or Unit Converter?
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