Unit Converter vs Unitap
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Unit Converter
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Convert any measurement in seconds ā even with no signal. ConvertIt is a fast, offline unit converter covering 20 categories, from everyday length and weight to cooking measures, clothing sizes and live currency rates. Type a number, get the answer. No sign-up, no clutter. WHAT YOU CAN CONVERT ⢠Length ā cm, inches, metres, feet, miles, kilometres ⢠Weight ā kg, pounds, grams, ounces, stones ⢠Temperature ā Celsius, Fahrenheit, Kelvin ⢠Volume ā litres, gallons, millilitres, cups ⢠Currency ā live exchange rates, cached for offline use ⢠Cooking ā cups, tablespoons, grams, millilitres ⢠Clothing & shoe sizes ā US, UK, EU and JP charts ⢠Area, speed, time, data, pressure, energy, power, force, fuel, angle, frequency ⢠BMI and age calculators BUILT TO BE FAST ⢠Works fully offline ā currency rates are cached after the first update ⢠Instant results as you type, with a purpose-built number pad ⢠Favourites and history, so a conversion you do often is one tap away ⢠Search across every unit at once ⢠Light and dark themes WHY PEOPLE KEEP IT INSTALLED Most converters make you dig through menus. ConvertIt puts the number first: pick a category, type, done. It's the one to reach for when you're following a recipe in the wrong units, checking a shoe size before you buy, or working out whether that suitcase is over the weight limit. Free, offline, and quick to open.
Unitap
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Type one number. Read them all. Unitap converts a value into every unit of the same category at once. There is no "from" and "to" to pick ā the moment you type, the answer is already on screen. ā Pin what you use Tap the star and that unit stays right under the input field in large type. From the second time on, you just type the number: cups ā ml and tablespoons for cooking, inches ā cm for DIY. It becomes your own conversion sheet. ā 14 categories, about 195 units Length, mass, temperature, area, volume, speed, duration, data, pressure, energy, power, angle, fuel efficiency and number bases (2 / 8 / 10 / 16). Traditional Japanese units (tsubo, jo, go, sho, monme, shaku and more) are included. ā Conversions work offline, no account Every conversion happens on your device, so it works the same in airplane mode or underground (only the ad banner uses the network). No sign-up, no login. ā Made for moments like these - A recipe says "1 cup" and "350°F" and you think in ml and °C - Overseas listings and drawings use inches, lb and sq ft - You need GB vs GiB, or kB vs KiB, converted correctly - Imperial units slow you down every time ā How to use 1. Pick a category from the chips at the top 2. Type a value (tap the unit button to change the input unit) 3. Tap a row to copy the value, tap the star to pin it Numbers are formatted with grouping separators and sensible significant digits, and unit names follow your device language.
Screenshots
Verdict
The clearest difference is ads: Unit Converter at none against Unitap's shown. Unit Converter also leads on iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Unit Converter | Unitap |
|---|---|---|
| Price | Free | Free |
| Ads | No ā better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 13.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 29 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Gunawan Santoso | Daisuke Minami |
In-app purchases
Unit Converter
No in-app purchases
Unitap
No in-app purchases









