Apps Like O-Ring for iPhone and iPad
O-Ring screenshots
Ranked alternatives
Showing 1–20 of 1,000 ranked alternatives.
Ring Sizer – Ring Size Meter
AppLiks Sp. z O.O.
Measure rings with the white circle
Measure by matching the inner edge to the 's white circle. Adjust the slider to align the diameter or circumference. View results in metric or imperial units, including US, Canadian, and Australian sizing systems.
Converter-Universal Conversion
Trelleborg Sealing Solutions Germany GmbH
Convert units, calculate percentages, track timezones, calculate
Convert units including currencies, length, weight, and temperature. Convert time zones and calculate percentages. Includes a running pace calculator and other utility tools for precise measurements and calculations.
Unit Converter: Mila's Tools
Scott DeSapio
Convert units across 16 categories
Convert units across 16 categories with instant results. Switch between metric, imperial, and other systems. Calculate conversions for length, weight, temperature, and more. Store frequently used values for quick access.
Ring Sizer & Tape Measure App
Andrei Nemtsou
Size with a slider
Size by placing the on a white circle on the screen. Adjust the slider to align the circle with the inner edge. Choose measurement format (US, AU/GB, EU/ISO, JP/CN). Display the calculated size.
Ring Sizer by Jason Withers ©
Uniqo Lab FZC
Measure size in metric or imperial units
Measure size using metric or imperial units, choose diameter or circumference, and use visual guides for accurate measurement. Supports sizes for USA, Australia, UK, Europe, Japan, and China. Share size on social networks.
mEzee
FIDA INTERNATIONAL (S) PTE LTD
Control smart home devices from one
Control smart home devices with scene automation, device setup, and family member management. Create preset scenarios, manage rooms, and access devices from a mobile .
Mindfulness Bell
Spotlight Six Software LLC
Set times, tap start, hear the
Rings a Tibetan Singing Bowl at set or random intervals. Schedule sessions and start playback. Exit and bells continue. Includes a meditation timer for guided practice.
Bitcoin.com Wallet: Buy, sell
Saint Bitts LLC
Send, receive, and swap crypto
Manage and store cryptocurrencies like Bitcoin, Ethereum, and others. Send, receive, and swap digital assets. Buy and using credit card or Google Pay. Access stablecoins and track portfolio. Securely control assets with self-custody features.
Themes: Color Widgets, Icons
娟 张
Customize home screen with widgets and
Customize the home screen by arranging widgets. Choose from various and . Adjust widget settings to suit preferred functions and appearance. Add widgets like wallpaper, clock, and weather.
Ring Sizer: Risi
Axel Le Pennec
Measure finger size and select size
Measure finger or size using a phone camera. Input measurements to calculate size. Convert measurements between units. Save and share results. Provide guidance for accurate sizing.
Flange Bolt Size & Torque
Open Source Consulting LLC
Look up , pipe, and data offline
Lookup , pipe, and data instantly without an internet connection. View number of bolts, diameter, length, wrench , pattern, and target . Check dimensions including outside diameter, thickness, circle diameter, and weight.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.