tempConvert vs Unit Conversion
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
tempConvert
Quickly convert temperatures between Fahrenheit and Celsius with instant results. This ad-free utility works offline, offering animated visuals and contextual labels for easy understanding. It supports negative temperatures and includes reference points for common scenarios.
- Instant temperature conversion
- Fahrenheit to Celsius and vice versa
- Offline functionality
- Animated thermometer
- Contextual labels
- Dark mode support
Read full descriptionHide full description
tempConvert is the fastest way to convert between Fahrenheit and Celsius — no ads, no clutter, no internet required. Just type a temperature and get an instant result. Whether you're traveling abroad, cooking, checking a weather forecast, or following a scientific formula, tempConvert gives you the answer in under a second. FEATURES Instant conversion — results update as you type Fahrenheit to Celsius and Celsius to Fahrenheit Negative temperature support for sub-zero values Animated thermometer that reflects current temperature Contextual labels so you know what the number actually feels like Works completely offline — no data collection, ever Full dark mode support Supports iPhone and iPad REFERENCE TEMPERATURES INCLUDED Water boils: 212°F / 100°C Body temperature: 98.6°F / 37°C Room temperature: 72°F / 22.2°C Water freezes: 32°F / 0°C Absolute zero: -459.67°F / -273.15°C THE FORMULAS °F to °C: subtract 32, multiply by 5, divide by 9 °C to °F: multiply by 9, divide by 5, add 32 tempConvert is simple by design. Open it, type a number, get your answer.
Unit Conversion
Instantly convert between numerous units across various categories like weight, length, and temperature. View all conversions simultaneously on a single screen without navigating through multiple menus. Offers offline currency conversion and detailed clothing size charts.
- Simultaneous unit conversion display
- Offline currency conversion
- Clothing size charts
- Haptic feedback on unit selection
- Customizable themes and accent colors
- Copy, paste, and share conversions
- 17 calculated conversion categories
Read full descriptionHide full description
Unit conversion with the answer on screen before you ask. Type a number and read it in every unit of the category at once - kg to lb, lb to kg, km to miles, cm to inches, feet to meters, Celsius to Fahrenheit. There is no "from" list and no "to" list to tap through first, and no direction to switch. You open the app, the keypad is already there, and so is the answer. WEIGHT, THE SHORT WAY • kg to lb, lb to kg, kg to stone, lb to oz, g to oz - all live at the same time • Stone and pounds behave as one pair, the way a British scale reads them • The value and the units you used last are waiting for you next time you open the app LENGTH, DISTANCE, TEMPERATURE • Metric conversion: km, miles, meters, feet, inches, cm and yards on one list • °C, °F and kelvin, converted by the real formula rather than a rough factor • mph and km/h, liters, gallons, cups and milliliters work the same way SEVENTEEN CALCULATED CATEGORIES Weight, length, temperature, time, speed, area, volume, data storage, angle, data transfer, energy, force, fuel economy, power, pressure, torque and currency. Every category works like the weight one: one keypad, one list, every unit updating together. Search any unit by name or symbol and it opens straight away - type "oz", "stone" or "fahrenheit" and start converting. CURRENCY THAT WORKS OFFLINE TOO Rates for the major currencies are built into the app, so the very first conversion works before the phone has seen a network. Once online, they are refreshed once a day from Frankfurter, which publishes central bank reference rates. They are indicative rates for a holiday budget or a foreign price tag, not a trading terminal. Rates: Frankfurter / central banks. CLOTHING SIZE CHARTS Shoes, trousers and tops are reference tables rather than formulas: US, EU, UK and international columns side by side, for women, men, kids, and babies for shoes. DETAILS THAT MAKE IT FAST • Copy, paste and share the whole conversion - "12 m = 39.3701 ft" - from the actions panel • A haptic click as the unit dial passes each unit • Light and dark themes, an accent colour of your choice • 30 interface languages • Exact factors, not rounded shortcuts: 1 lb is 0.45359237 kg, 1 inch is 2.54 cm, 1 mile is 1.609344 km. Small numbers stay readable instead of collapsing into scientific notation. NUMBERS PEOPLE LOOK UP MOST 1 kg = 2.204623 lb | 10 kg = 22.05 lb | 70 kg = 154.32 lb 1 lb = 0.453592 kg | 100 lb = 45.36 kg | 150 lb = 68.04 kg 1 km = 0.621371 mi | 5 km = 3.107 mi | 1 mi = 1.609344 km 1 in = 2.54 cm | 30 cm = 11.81 in | 6 ft = 182.88 cm 20 °C = 68 °F | 100 °F = 37.78 °C Type any other number and the app does the same for it, instantly. FREE AND PREMIUM Free: twelve categories including weight, length, temperature and currency, unlimited conversions, with a banner on screen and one full-screen ad when you open Settings. Premium removes every ad and adds angle, data transfer, energy, force, torque and the three clothing size charts, plus a Favourites board you arrange yourself for the conversions you repeat. SUBSCRIPTION TERMS • Premium is offered as a monthly subscription (USD 4.99), an annual subscription (USD 29.99) with a 7-day free trial, or a one-time lifetime purchase (USD 59.99). Local prices are shown inside the app. • Payment is charged to your Apple Account when the purchase is confirmed. • A subscription renews automatically unless auto-renewal is turned off at least 24 hours before the end of the current period. The account is charged for renewal within 24 hours before the period ends. • Manage the subscription and turn off auto-renewal in your Apple Account settings after purchase. • Any unused part of a free trial period is forfeited when a subscription is purchased. • Terms of Use (EULA): https://dimadyuk.github.io/terms-conditions.html • Privacy Policy: https://dimadyuk.github.io/privacy-policy.html A conversion is a five-second job. This app is built so it takes five seconds.
Screenshots
Verdict
The clearest difference is in-app purchases: tempConvert at none against Unit Conversion's 6. tempConvert also leads on ads (none vs shown) and iOS requirement (16.0 vs 18.2). Unit Conversion's advantage is update cadence (every 10 days vs every 2 months). On price, rating, ratings volume and device support 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. Unit Conversion sells 6 in-app purchases, starting at $2.49 per month. tempConvert asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for tempConvert against 5.0 for Unit Conversion. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
tempConvert ships an update every 2 months, Unit Conversion every 10 days. Both last shipped on November 6, 2026.
| Parameter | tempConvert | Unit Conversion |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Greg Anderson | Dzmitry Dzemidziuk |
Customer experience
tempConvert
Unit Conversion
In-app purchases
tempConvert
No in-app purchases
Unit Conversion
- Premium Monthly$2.491 Month
- Premium Monthly$4.991 Month
- Premium Annual7 Days trial$20.991 Year
Show 1 moreShow fewer
- Premium Annual7 Days trial$29.991 Year
- Lifetime Premium$41.99
- Lifetime Premium$59.99
Questions
Is tempConvert free?
Is Unit Conversion free?
Which has better reviews, tempConvert or Unit Conversion?
Do tempConvert or Unit Conversion have ads?
Which is updated more often, tempConvert or Unit Conversion?
Other comparisons















