--- title: "Delta Calc - Reviews, Revenue and Downloads in United States | Apple App Store" 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 C" --- # Delta Calc — United States > A fast percent change calc ![Delta Calc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/27/0a/ff/270aff5a-f9d1-fdb0-ef3b-0d58c7dd8b91/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Stephen Coffey](https://apptail.io/developer/stephen-coffey-cGNf) **Category:** Utilities **Rating:** 5.0/5 (2 ratings) **Price:** $0.99 **Bundle ID:** dev.andrewcoffey.PercentChangeCalculator **Store:** Apple App Store **Country:** United States **Version:** 1.12 (released 2025-10-23) **Original Release:** 2024-06-09 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6504148868) **AppTail Page:** [https://apptail.io/app/delta-calc-Hvnq/united-states](https://apptail.io/app/delta-calc-Hvnq/united-states) ## Delta Calc 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. 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: Privacy: Support: ## Delta Calc Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/19/f5/b8/19f5b8c0-d1a8-bc8e-3c38-17e5e33c1ec3/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-10-22_at_15.40.28.png/1320x2868.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a7/91/d6/a791d689-d1fe-8ccb-0b91-708755619f28/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-10-22_at_15.40.53.png/1320x2868.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ac/91/a1/ac91a140-ef65-acb1-41e1-cb62450144e2/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2025-10-22_at_15.42.41.png/1320x2868.png) ## Delta Calc Rating Breakdown in United States - 5 stars: 2 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Delta Calc Available In - [United States](https://apptail.io/app/delta-calc-Hvnq/united-states) - [China](https://apptail.io/app/delta-calc-Hvnq/china) - [Australia](https://apptail.io/app/delta-calc-Hvnq/australia) - [Azerbaijan](https://apptail.io/app/delta-calc-Hvnq/azerbaijan) - [Brazil](https://apptail.io/app/delta-calc-Hvnq/brazil) - [Belarus](https://apptail.io/app/delta-calc-Hvnq/belarus) - [Canada](https://apptail.io/app/delta-calc-Hvnq/canada) - [Switzerland](https://apptail.io/app/delta-calc-Hvnq/switzerland) - [Chile](https://apptail.io/app/delta-calc-Hvnq/chile) - [Colombia](https://apptail.io/app/delta-calc-Hvnq/colombia) - [Czechia](https://apptail.io/app/delta-calc-Hvnq/czechia) - [Dominican Republic](https://apptail.io/app/delta-calc-Hvnq/dominican-republic) - [Algeria](https://apptail.io/app/delta-calc-Hvnq/algeria) - [Ecuador](https://apptail.io/app/delta-calc-Hvnq/ecuador) - [Egypt](https://apptail.io/app/delta-calc-Hvnq/egypt) - [United Kingdom](https://apptail.io/app/delta-calc-Hvnq/united-kingdom) - [Hong Kong SAR China](https://apptail.io/app/delta-calc-Hvnq/hong-kong) - [Indonesia](https://apptail.io/app/delta-calc-Hvnq/indonesia) - [Israel](https://apptail.io/app/delta-calc-Hvnq/israel) - [India](https://apptail.io/app/delta-calc-Hvnq/india) - [Italy](https://apptail.io/app/delta-calc-Hvnq/italy) - [South Korea](https://apptail.io/app/delta-calc-Hvnq/south-korea) - [Kuwait](https://apptail.io/app/delta-calc-Hvnq/kuwait) - [Kazakhstan](https://apptail.io/app/delta-calc-Hvnq/kazakhstan) - [Lebanon](https://apptail.io/app/delta-calc-Hvnq/lebanon) - [Sri Lanka](https://apptail.io/app/delta-calc-Hvnq/sri-lanka) - [Mauritius](https://apptail.io/app/delta-calc-Hvnq/mauritius) - [Mexico](https://apptail.io/app/delta-calc-Hvnq/mexico) - [Nigeria](https://apptail.io/app/delta-calc-Hvnq/nigeria) - [Norway](https://apptail.io/app/delta-calc-Hvnq/norway) - [New Zealand](https://apptail.io/app/delta-calc-Hvnq/new-zealand) - [Panama](https://apptail.io/app/delta-calc-Hvnq/panama) - [Peru](https://apptail.io/app/delta-calc-Hvnq/peru) - [Philippines](https://apptail.io/app/delta-calc-Hvnq/philippines) - [Pakistan](https://apptail.io/app/delta-calc-Hvnq/pakistan) - [Russia](https://apptail.io/app/delta-calc-Hvnq/russia) - [Saudi Arabia](https://apptail.io/app/delta-calc-Hvnq/saudi-arabia) - [Singapore](https://apptail.io/app/delta-calc-Hvnq/singapore) - [Türkiye](https://apptail.io/app/delta-calc-Hvnq/turkey) - [Taiwan](https://apptail.io/app/delta-calc-Hvnq/taiwan) - [Ukraine](https://apptail.io/app/delta-calc-Hvnq/ukraine) - [Uruguay](https://apptail.io/app/delta-calc-Hvnq/uruguay) - [United Arab Emirates](https://apptail.io/app/delta-calc-Hvnq/united-arab-emirates) - [South Africa](https://apptail.io/app/delta-calc-Hvnq/south-africa) - [Argentina](https://apptail.io/app/delta-calc-Hvnq/argentina) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*