Delta Calc 4+
A percent change calculator
Stephen Coffey
Designed for iPad
-
- Free
- Offers In-App Purchases
Screenshots
Description
A fast, easy, and fun-to-use percent change calculator. Now you can quickly calculate discounts, financial gains, and percent changes without having to use Excel, Google, or do the long math.
Delta Calc can solve for any of the three values within the percent change formula. It solves for the a, b, or c value in the percent change formula ((b - a) / a) * 100 = c.
The calculator can also solve for the a, b, or c value in the value change formula b - a = c.
Other features include:
- Haptic feedback (can be disabled if desired)
- Change the number of decimal places displayed in the result (from 0 to 10)
- Fun animation when tapping the swap button (warning: could become addictive)
- Delightful to tap number pad buttons
- Enable and disable keyboard buttons
Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy: https://deltacalc.app/privacy
Support: https://deltacalc.app/support
What’s New
Version 1.11
Introducing Delta Calc's biggest update yet!
- You can now add Delta Calc to your Control Center to quickly open the app.
- Implemented a clockwise animation when swapping two values (warning: could become addictive).
- Updated the layout to be more adaptive to iPad screens.
- Enabled haptic feedback for button taps (can be disabled if desired).
- Included a Support link in Settings (this takes you to a form where you can provide feedback and include attachments).
- For new downloads only: implemented a launch screen to subscribe monthly, annually, or make a one-time purchase. Please note that the app is still completely free to use; simply tap the X button in the top right to dismiss the paywall. However, unless subscribed or a one-time purchase has been made, the launch screen will appear every time you open the app.
App Privacy
The developer, Stephen Coffey, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- Stephen Coffey
- Size
- 1.9 MB
- Category
- Utilities
- Compatibility
-
- iPhone
- Requires iOS 17.6 or later.
- iPad
- Requires iPadOS 17.6 or later.
- Mac
- Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.3 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © 2025 Stephen Coffey
- Price
- Free
- In-App Purchases
-
- Delta Calc Lifetime USD 11.99