Comparison

Convert vs Unit Converter Simple

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Convert

Easily convert hundreds of physical units and dimensions with this powerful tool. It also includes a currency converter with daily updated exchange rates for over 130 countries and is available on Apple Watch.

Highlights
  • Unit conversion for 398 units
  • Currency conversion with daily rates
  • Integrated calculator
  • Apple Watch support
  • History charts for currencies
  • Copy & Paste functionality
Features
Read full description

A simple but powerful unit converter. Translates hundreds of physical units and dimensions quickly and easily. The currency converter features daily updated exchange rates for over 130 countries. CUSTOMER REVIEWS: 4½ (over 1000 reviews world wide) *** Apple Watch *** We bring the converter including currency exchange rates to your Apple Watch. Convert units and currencies directly on your watch. TOP FEATURES: ▶ Intuitive and efficient user interface ▶ A total of 398 units in 17 categories ▶ Shoe size conversion ▶ Calculator ▶ Daily updated currency converter ▶ History charts for all currencies ▶ Push notifications for currencies ▶ Univeral iPhone/iPad app ▶ Landscape support for iPad ▶ Copy & Paste ▶ Drag'n Drop your favorites to the toolbar ▶ Frequent free updates CATEGORIES: ▶ Currency ▶ Length ▶ Weight ▶ Temperature ▶ Speed ▶ Energy ▶ Angle ▶ Pressure ▶ Time ▶ Volume ▶ Area ▶ Power ▶ Data ▶ Torque ▶ Radioactivity ▶ Fuel consumption ▶ Force ▶ Shoe size ▶ Calculator Available upgrades with subscriptions: * 'Advanced features': $0.99 per 6 months No ADs, Currency Exchange Rates, Charts - Payment will be charged to iTunes Account at confirmation of purchase. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. Privacy policy: https://www.bitcommander.ch/privacy-policy Terms of use: https://www.bitcommander.ch/terms-of-use-convertit

About

Unit Converter Simple

Easily convert between various units of measurement for length, weight, volume, and more. View converted values in a convenient list and customize the display to show only the units you need. Supports a wide range of common and specialized units.

Highlights
  • Converts length, weight, area, volume, and more
  • Displays converted values in a list
  • Customizable unit visibility
  • Supports a wide variety of units
  • Free to use
Features
Read full description

A free app that easily converts units such as length and weight into other units. You can easily convert meters to kilometers, grams to kilograms, and so on. In addition, the converted values ​​are displayed in a list, so you can check them immediately. You can hide the units you don't need, so you can see only the units you want to see. It corresponds to various units. [Unit List] Length, Weight, Area, Volume, Angle, Time, Speed, Temperature, Force, Pressure, Acceleration, Energy [Each Unit] Length: Metre, Foot, Inch, etc. Weight: Gram, Kilogram, Pound, etc. Area: Square metre, Square foot, Hectare, etc. Volume: Litre, Cubic centimetre, Gallon, etc. Angle: Degree, Minute, Radian, etc. Time: Second, Hour, Day, etc. Speed: Metre per second, Mile per hour, Knot, etc. Temperature: Celsius, Fahrenheit, Kelvin, etc. Force: Kilogram-force, Newton, Poundal, etc. Pressure: Pascal, Hectopascal, Bar, etc. Acceleration: Metre per second squared, Gal, etc. Energy: Joule, Erg, Foot-poundal, etc.

Screenshots

Convert4 screens
Unit Converter Simple4 screens

Verdict

The call

The clearest difference is rating: Convert at 4.7 against Unit Converter Simple's 4.0. Convert also leads on ratings volume (126 vs 1) and update cadence (every 3 months vs every 10 months). Unit Converter Simple's advantage is in-app purchases (none vs 2). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Convert sells 2 in-app purchases, starting at $0.99 per 6 months. Unit Converter Simple asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Convert holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Convert has 126 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Convert ships an update every 3 months, Unit Converter Simple every 10 months. Both last shipped on October 29, 2026.

Scorecard5 real differences · 5 level
Convert versus Unit Converter Simple: the parameters behind the verdict, then further details
ParameterConvertUnit Converter Simple
PriceFreeFree
Rating4.7 (126 ratings) — better4.0 (1 ratings)
Positive reviews69.8% of reviews—
Number of ratings126 — better1
Update frequencyEvery 3 months — betterEvery 10 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size39 MB18 MB
Age rating4+4+
DeveloperRaphael OdermattKouji Yamauchi

In-app purchases

2 purchases

Convert

Subscriptions1
  • Advanced Features3 Days trial$0.996 Months
One-time1
  • Advanced Features$1.99
None

Unit Converter Simple

No in-app purchases

Questions

Is Convert free?
Convert is free to download, with in-app purchases available.
Is Unit Converter Simple free?
Unit Converter Simple is free to download, with no in-app purchases.
Which has better reviews, Convert or Unit Converter Simple?
Convert is rated higher. Convert averages 4.7 out of 5 from 126 ratings, while Unit Converter Simple averages 4.0 from 1 ratings.
Do Convert or Unit Converter Simple have ads?
Both Convert and Unit Converter Simple show ads.
Which is updated more often, Convert or Unit Converter Simple?
Convert ships an update every 3 months, and Unit Converter Simple every 10 months. Most recently, Convert was updated on October 29, 2026 and Unit Converter Simple on October 29, 2026.

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