ConvertTiles: Unit Converter vs Ratio Calculator - Proportion Usage & Stats
ConvertTiles is a new take on unit converter apps. A simple app where different groups of converters live on separate tiles. It is easy to change units through a simple picker and the tiles save your last used units. With a pro subscription you can customize your tiles with a custom unit set and custom accent colors. An optional colored line around each tile can help you easily find the one you are looking for. With 20 different groups almost any unit can be converted.
The groups are:
Acceleration
Angle
Area
Concentration Mass
Duration
Electric Charge
Electric Current
Electric Potential Difference
Electric Resistance
Energy
Frequency
Fuel Efficiency
Information Storage
Length
Mass
Power
Pressure
Speed
Temperature
Volume
Please note only 6 groups are unlocked by default. A pro subscription is required to fully unlock all 20.
- Apple App Store
- Free
- Utilities
Store Rank
- -
Proportions Calculator is a simple tool for calculating proportions. Just enter any three values and the program will find the fourth. Use it for resizing images and videos, finding tip amounts, calculating sales tax, scaling recipes, converting currency, or anything where proportions are used.
Features
* Any value can be the unknown
* Each entry can be cleared individually
* All entries can be cleared at one time
This App calculates proportions (direct or indirect), also known as "rule of three" by entering three known values and hitting "Calculate". The App will calculate the missing value for you!
A history of calculated values is kept and can be managed within the App.
- Apple App Store
- Paid
- Utilities
Store Rank
- -
ConvertTiles: Unit Converter VS. 
Ratio Calculator - ProportionJanuary 11, 2026