AB Converter vs UnitBox Unit Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AB Converter
This utility app offers comprehensive unit conversions across 12 categories and 93 units. It features express conversion, an intuitive interface, and multi-unit conversion capabilities. Supports English, Traditional Chinese, and Simplified Chinese.
- Converts 93 units
- 12 conversion categories
- Express conversion
- Easy-to-use interface
- Multi-unit conversion
- Supports 3 languages
Read full descriptionHide full description
AB Converter is a powerful unit conversion tool, it supports up to 93 different units under 12 categories (length, area, weight etc..). Three major features: express conversion, easy-to-use and multi-unit conversion. *Support languages: English, Traditional Chinese and Simplified Chinese. Unit list: Length - Millimeter (mm) - Centimeter (cm) - Meter (m) - Kilometer (km) - Inch (in) - Foot (ft) - Furlong (fur) - Yard (yd) - Mile (mile) Area - Sq. Millimeter (mm²) - Sq. Centimeter (cm²) - Sq. Meter (m²) - Sq. Kilometer (km²) - Sq. Inch (in²) - Sq. Foot (ft²) - Sq. Yard (yd²) - Sq. Mile (mile²) - Acre (ac) Weight - Pound (lb) - Ounce (oz) - Tonne (t) - Kilogram (kg) - Gram (g) - Milligram (mg) - Carat (ct) - Stone (st) - Chinese-斤 (斤) - Chinese-両 (両) - Chinese-分 (分) Volume - Liter (L) - Milliliter (mL) - Imperial-Gallon (gal) - US-Gallon (gal) - Imperial-Pint (pt) - US-Pint (pt) - Cup (c) - Tablespoon (tbsp) - Teaspoon (tsp) - Petroleum-Barrel (bl) - Cubic Centimeter (cm³) - Cubic Meter (m³) - Cubic Inch (in³) - Cubic Foot (ft³) - Cubic Yard (yd³) Temperature - Celsius (°C) - Fahrenheit (°F) - Kelvin (K) - Rankine (°R) Time - Second (s) - Minute (min) - Hour (h) - Day (day) - Week (week) - Year (year) - Millisecond (ms) - Microsecond (μs) - Nanosecond (ns) Angle - Degree (°) - Gradian (grad) - Radian (rad) Data - Byte (B) - Kilobyte (kB) - Megabyte (MB) - Gigabyte (GB) - Terabyte (TB) - Petabyte (PB) - Bit (b) - Kilobit (kb) - Megabit (Mb) - Gigabit (Gb) - Terabit (Tb) - Petabit (Pb) Body Fitness - Calorie (cal) - Kilocalorie (kcal) - Joule (J) - Kilojoule (KJ) - Megajoule (MJ) Force - Newton (N) - Dyne (dyn) - Kilogram-Force (kgf) - Pound-Force (lbf) - Poundal (pdl) Power - Watt (W) - Kilowatt (kW) - Megawatt (MW) - Metric Horsepower (hp) Pressure - Pascal (Pa) - Kilopascal (kPa) - Megapascal (MPa) - Bar (Bar) - Torr (Torr) - Pound/Sq. Inch (psi) - Pound/Sq. Foot (psf)
UnitBox Unit Converter
Read full descriptionHide full description
UnitBox converts everything length, weight, temperature, volume, area, speed, force, pressure, and energy completely offline, with every unit unlocked from the first launch. No currency conversion, no accounts, no ads, nothing to buy. Just a fast, accurate converter that works the way a converter should. WHY UNITBOX Most unit converters get expensive right when you actually need them: scientific units like Newtons get locked behind a paywall, video ads interrupt you mid-number-entry, or a permanent unlock costs more than dinner. UnitBox has none of that. Every category including Force, Pressure, and Energy is unlocked the moment you install it. NINE CATEGORIES, EVERY UNIT • Length meters, feet, miles, kilometers, and more • Weight kilograms, pounds, ounces, grams, stone, metric tons • Temperature Celsius, Fahrenheit, Kelvin • Volume liters, milliliters, gallons, fluid ounces, cups • Area square meters, square feet, acres, hectares • Speed km/h, mph, m/s, knots • Force Newtons, pound-force • Pressure Pascals, bar, PSI, atmospheres • Energy Joules, calories, kilowatt-hours BUILT FOR SPEED Type a number, tap a unit, get your answer instantly no network required, no loading spinner, no waiting on a video before you can see your conversion. UnitBox works exactly the same on a plane, underground, or with your phone in airplane mode. PRIVATE BY DESIGN UnitBox doesn't ask for an account, doesn't send your data anywhere, and doesn't need permissions it can't justify. There's nothing to sign up for and nothing to track. Everything unlocked. Nothing to buy. Just a converter.
Screenshots
Verdict
The clearest difference is ads: UnitBox Unit Converter at none against AB Converter's shown. AB Converter's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and in-app purchases 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.
| Parameter | AB Converter | UnitBox Unit Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | RockCat Studio Limited | Feda Hadziselimovic |
In-app purchases
AB Converter
No in-app purchases
UnitBox Unit Converter
No in-app purchases
Questions
Is AB Converter free?
Is UnitBox Unit Converter free?
Do AB Converter or UnitBox Unit Converter have ads?
Other comparisons















