---
title: "PercentDiff - the Shaolo Percent and Percentage Calculator - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "If you think the app is anything less than 5 stars, we want to hear from you directly!  Do you have something you would like us to add or a complaint?  Please contact us via the About tab. We can't re"
---

# PercentDiff - the Shaolo Percent and Percentage Calculator — United States

![PercentDiff App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/b3/dd/f4/b3ddf4e5-60f5-2dfb-cf80-1be0bd88eeba/mzl.fwpnjggv.png/434x0w.png)

**Developer:** [Shaolo](https://apptail.io/developer/shaolo-nFLb)
**Category:** Productivity
**Rating:** 4.9/5 (157 ratings)
**Price:** Free
**Bundle ID:** com.shaolo.PercentDiff
**Store:** Apple App Store
**Country:** United States
**Version:** 2.61 (released 2015-09-29)
**Original Release:** 2011-07-10
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id421692417)
**AppTail Page:** [https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/united-states](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/united-states)

## PercentDiff Description
If you think the app is anything less than 5 stars, we want to hear from you directly!  Do you have something you would like us to add or a complaint?  Please contact us via the About tab. We can't reply to reviews.

Follow us on twitter:  shaolollc

We love user feedback, please keep sending us email (preferably with something in it.  I get a lot of empty email!

PercentDiff is the original multi-result percent calculator application.

Using PercentDiff is incredibly easy.  There are two tabs.  One for two numbers, and one for a number and a percentage.  Input your numbers on either tab and all values will be calculated.

The two modes currently available are:

A.  % Change (Number 1 to Number 2)

This mode will calculate:
1.  Percent increase
** This mode can also be used to calculate gross sales markup

2.  Percent decrease
** This mode can also be used to calculate gross margin

3.  Percent difference

4.  Number 1 as a percent of Number 2

5.  Number 2 as a percent of Number 1


B.  % Of (Percent of number)

This mode will calculate:
1.  Percent of X

2.  X plus percent
** Can also be used to calculate markup on a product

3.  X minus percent
** Can also be used to calculate markdown on a product

4.  X as a percent of an original number

5.  X as a percent increase of an original number

6.  X as a percent decrease of an original number


We strive to make our apps as simple to use as possible.

Please FEEL FREE TO EMAIL US feedback.  We would like to know how users interact with the app and how we can improve upon it.

## PercentDiff Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/4a/44/4a/4a444ae8-5632-e5c3-5e54-96fbbf4120f4/pr_source.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple22/v4/75/56/9d/75569d86-9809-b95c-c755-0d4c4361838d/mzm.nxtcwssm.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/72/8d/56/728d5661-80f2-7a3d-685b-cb051accafe8/pr_source.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/07/55/6e/07556e34-4e92-9553-2307-6fb92a607898/pr_source.png/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/8b/23/fa/8b23fa5b-f036-710d-b3d2-3287a2a13f63/pr_source.png/640x960.png)

## PercentDiff Rating Breakdown in United States
- 5 stars: 147 (94%)
- 4 stars: 8 (5%)
- 3 stars: 0 (0%)
- 2 stars: 1 (1%)
- 1 stars: 1 (1%)

## PercentDiff Reviews in United States

### ***** "Simple and Free"
This is by far a treasure if you are always calculating percentages. No ads, no cunning marketing tactics it is simple and free; deserves every bit of a 5 stars plus rating.
-- Kinsale man, 2025-01-12

### ***** "Absolutely the BEST and most FUNCTIONAL app!"
If you work with numbers in any way shape or form, this app belongs in your phone.

The developers have widely resisted the foolish idea to tack on unnecessary noise or annoying ads. I would happily pay for this app, and I hope it remains, and it’s current, pristine, amazingly functional form.

To the developers, thank you! I hope you introduce away for us to optionally support you… Something similar to Wikipedia.
-- Jeff_47, 2024-01-27

### ***** "Very useful"
Been using this app for years and always comes in handy!
-- Saini9090, 2023-08-21

### ***** "Love this app!"
Been using this app for several years without any flaws! It is great. I use it to help price my products, determine differences between numbers at work, grade tests for school. Highly recommended. Two thumbs up!
-- Joseph Scot, 2022-12-09

### ***** "Many uses"
This app is one of the best. Has been handy when dining out and shopping but is awesome when you need to buy something and want, say, a 15% overage. I’ve used this in construction projects, boating projects, and many others. 

Let’s add a little more functionality with maybe an area calculator including odd shapes and also volume including odd sizes. 

Maybe even a plain calculator or wait! How about adding fraction calculator?? 

Thanks for a great app!
-- Em Anni, 2022-11-19

### ***** "Awesome App!!"
The only percent app you’ll ever need!
-- Mark Fisko, 2022-10-15

### ***** "Brilliant"
Ive been using this app for several years and refer it to OFTEN. So helpful and a bug time saver for the mathly challenged!
-- Darword, 2022-04-21

### ***** "Very nicely done!"
Well done, dev team. Neat design. Get this one. It's the one you want. Recommend!
-- jkirk1626, 2021-06-05

### ***** "Goto App"
Please do not break app. If the app could hold the last ten to twenty calculations in memory or archive for fast recall that would be a major boost to the workflow!
-- StupidGreedyCorporateDroid, 2021-04-22

### ***** "Great app, use it many times per week"
This app is great to quickly enter the values and get the answer without entering in the equations.
-- Barry Warner, 2021-03-10

[View all PercentDiff reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## PercentDiff Discovered Keywords
- percent
- percentage increase calculator
- percentage calculators free
- stocks calc
- percentdiff

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## PercentDiff Available In
- [United States](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/united-states)
- [United Kingdom](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/united-kingdom)
- [Canada](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/canada)
- [Australia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/australia)
- [Italy](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/italy)
- [Israel](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/israel)
- [India](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/india)
- [Germany](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/germany)
- [Mexico](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/mexico)
- [Denmark](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/denmark)
- [Romania](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/romania)
- [New Zealand](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/new-zealand)
- [Spain](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/spain)
- [France](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/france)
- [Norway](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/norway)
- [Philippines](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/philippines)
- [Brazil](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/brazil)
- [Argentina](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/argentina)
- [Austria](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/austria)
- [Belgium](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/belgium)
- [Bulgaria](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/bulgaria)
- [United Arab Emirates](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/united-arab-emirates)
- [Switzerland](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/switzerland)
- [China](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/china)
- [Czechia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/czechia)
- [Ecuador](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/ecuador)
- [Egypt](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/egypt)
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- [Greece](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/greece)
- [Hong Kong SAR China](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/hong-kong)
- [Hungary](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/hungary)
- [Ireland](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/ireland)
- [South Korea](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/south-korea)
- [Kazakhstan](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/kazakhstan)
- [Nigeria](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/nigeria)
- [Netherlands](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/netherlands)
- [Poland](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/poland)
- [Portugal](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/portugal)
- [Russia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/russia)
- [Saudi Arabia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/saudi-arabia)
- [Sweden](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/sweden)
- [Singapore](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/singapore)
- [Slovakia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/slovakia)
- [Thailand](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/thailand)
- [Türkiye](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/turkey)
- [Ukraine](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/ukraine)
- [South Africa](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/south-africa)
- [Colombia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/colombia)
- [Vietnam](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/vietnam)
- [Slovenia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/slovenia)
- [Chile](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/chile)
- [Nepal](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/nepal)
- [Belarus](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/belarus)
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- [Brunei](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/brunei)
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- [Malaysia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/malaysia)
- [Armenia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/armenia)
- [Qatar](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/qatar)
- [Azerbaijan](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/azerbaijan)
- [Indonesia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/indonesia)
- [Tunisia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/tunisia)
- [Croatia](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/croatia)
- [Algeria](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/algeria)
- [Iceland](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/iceland)
- [Dominican Republic](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/dominican-republic)
- [Jamaica](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/jamaica)
- [Japan](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/japan)
- [Uruguay](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/uruguay)
- [Kuwait](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/kuwait)
- [Taiwan](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/taiwan)
- [Lebanon](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/lebanon)
- [Sri Lanka](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/sri-lanka)
- [Madagascar](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/madagascar)
- [Mauritius](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/mauritius)
- [Uganda](https://apptail.io/app/percentdiff-the-shaolo-percent-and-percentage-calculator-vfb/uganda)

---

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