# EZ Adder — Six calculators in one

> Basic calculator with electronic paper tape and enhanced percentage functions. (iPhone/iPad app by Robert Wohnoutka.)

- Source: https://appshunter.io/ios/app/ez-adder/id372954097 (this page in markdown: same URL + `.md`)
- Developer: [Robert Wohnoutka](https://appshunter.io/developer/372954100)
- Category: Utilities, Finance
- Price: Free
- Rating: 4.80/5 from 152 App Store ratings · 43 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 2 MB
- Languages: American English
- Released: 2010-05-22
- Data updated: 2026-09-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ez-adder/id372954097/reviews.md

## What is EZ Adder?

EZ Adder is a unique easy to use basic calculator (+ - x / %).  It maintains an “electronic paper tape” of all your entries which allows you to view and easily correct any entry. 

Actually, it is six calculators.  Each with their own custom color.

It’s great for performing any basic calculations. Ever try to add a long list of numbers and every time get a different answer?  Then, you need EZ Adder because it lets you scroll through all of your entries and easily correct any mistakes. 

EZ Adder has a large custom keyboard for a quick and easy touch and a decimal slider to choose 0-4 digits after the decimal point.

You can email the results of any tape as a formatted report to yourself or anyone else.

It also has an enhanced % key for calculating percentage discount, tips, and sales tax:
- To compute the price of an item with a 25% discount, enter the price then enter -25%.
- For an additional 10% discount, enter -10%. 
- To calculate the meal amount plus an 18% tip, enter the meal amount then enter +18%.
- To calculate the total including 8.25% sales tax, enter the total then enter +8.25%.

FEATURE SUMMARY
•  Electronic paper tape showing all entries 
•  Correct any entry at any time
•  Delete items from the tape
•  Six (6) independent electronic paper tapes
•  Custom numeric keyboard for an easy touch
•  Email results to yourself or anyone else
•  Decimal point slider to choose 0-4 places
•  Plus % is great for tax & tips 
•  Minus % is great for discounts
•  Custom colors for each calculator 
•  Mute and volume control

## Key features

- Electronic paper tape for all entries
- Correct or delete entries easily
- Six independent calculators
- Enhanced percentage key for discounts, tips, and tax
- Email results as formatted reports
- Customizable colors and keyboard

## Recent user reviews (10 of 43)

All indexed reviews: https://appshunter.io/ios/app/ez-adder/id372954097/reviews.md

### 5/5 — Best

*2024-09-05, version 5.0*

Tried a dozen different adding machines before finally finding this one, which exports tape, and doesn’t have a limit to the number of lines. And it’s actually free. Thank you for an excellent free app!

### 5/5 — Easy to use

*2023-05-31, version 5.0*

I like this calculator because it is easy to use. The numbers are big so when I try to put numbers in fast I don’t hit the wrong number. Also I like the feature that keeps all your calculations so you can go back to see where you made a mistake and edit it.

### 5/5 — I’m Dyscalculate and this is a game changer!

*2022-12-19, version 5.0*

As someone with Dyscalculia (like dyslexia only numbers) I cannot hold numbers in my head. This means even when I use a traditional calculator I have trouble because I will second guess what I’ve already input (because it disappears after the first number is entered). With this app I can SEE each number in the order I’ve put it in and am able to check or even change lines and allow me to catch mistakes much better. 
Get this app for anyone with math challenges. It helped me a ton.

### 4/5 — Un ki jo

*2022-11-21, version 5.0*

P tu

### 2/5 — Excellent

*2022-06-01, version 5.0*

Excellent app

### 5/5 — EZ ADDER

*2022-03-23, version 5.0*

Love this app.  In particular you can have several calculators to use at same time.

Highly recommend
354988

### 4/5 — Would like more features

*2021-03-02, version 5.0*

I like app pretty well, but I much preferred my discontinued app that worked like an adding machine so I could label expenditures and income and keep a running total for each month.

### 5/5 — Options

*2021-02-03, version 5.0*

Can you adjust the options ranging from 1 to 6 for example I want from 1 to 3 which I have three accounts? So I do not have to go long way to 6 then 1. Thank you.

### 5/5 — Simple to Use

*2020-10-28, version 5.0*

Large print

### 5/5 — Great useful Apo that is simple !

*2020-08-06, version 5.0*

Works great! Thank you! Simple and solid and helpful!

## Frequently asked questions about EZ Adder

### What does EZ Adder do?

EZ Adder is a basic calculator app that features an electronic paper tape to record all your entries. This tape allows you to easily view, correct, or delete any previous calculation. It also includes six independent calculators, each with its own custom color, for organizing different types of calculations.

### What are the key features of EZ Adder?

Key features include an electronic paper tape for tracking entries, the ability to correct or delete any entry, six independent calculators with custom colors, a large numeric keyboard, a decimal slider for precision, and an enhanced percentage key for calculating discounts, tips, and sales tax. You can also email your calculation results as a formatted report.

### Is EZ Adder free to use?

Yes, EZ Adder is a free application. It does not have any in-app purchases or advertisements, making it a completely free utility for all users.

### Who is EZ Adder for?

This app is ideal for anyone who performs basic calculations regularly, such as students, shoppers, or individuals managing personal budgets. Its paper tape feature is particularly useful for those who need to track long lists of numbers and avoid errors.

### How does the enhanced percentage key work?

The enhanced percentage key simplifies common percentage calculations. For discounts, you enter the original price and then subtract the percentage (e.g., -25%). For adding tax or tips, you enter the base amount and then add the percentage (e.g., +8.25%).

## Version history (last 5 releases)

### 5.0 — 2018-12-05

- Customer colors
- Six calculators
- Volume control
- Native iPad support

### 4.2 — 2014-06-27

fix minor bug  (selecting an empty element in list)

### 4.1 — 2014-04-28

- Fix issue with iOS 5
- Support calculator sound and shake sound

### 4.0 — 2014-03-10

iOS 7 full support
iPhone 5 full support
New look and feel
Three independent calculators
Email results to anyone
Mute

### 3.2 — 2013-04-03

- More attractive interface
- Ability to write a review
- Interface to view other apps
- Add ask question/report problem
- Yellow is default color
- Calculator sound default is Off

## Apps similar to EZ Adder

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Calculator Pro Lite](https://appshunter.io/ios/app/calculator-pro-lite/id782873366) | 4.6 (3,066) | Free | Utilities |
| [Calculator for iPhone and iPad](https://appshunter.io/ios/app/calculator-for-iphone-and-ipad/id1427806736) | 4.7 (14,823) | Free | Utilities |
| [Calculator⁼](https://appshunter.io/ios/app/calculator/id487127942) | 4.6 (358,262) | Free | Utilities |
| [Calculator·](https://appshunter.io/ios/app/calculator/id554836784) | 4.9 (34,361) | Free | Utilities |
| [Calculator Plus #1](https://appshunter.io/ios/app/calculator-plus-1/id576156235) | 4.8 (5,010) | Free | Utilities |
| [Print Calculator](https://appshunter.io/ios/app/print-calculator/id1464383515) | 4.3 (34) | Free | Utilities |

## More apps by Robert Wohnoutka

- [True Balance](https://appshunter.io/ios/app/true-balance/id377684634)
- [Account Balance Now Lite](https://appshunter.io/ios/app/account-balance-now-lite/id388888190)
- [My.Walk.Hike](https://appshunter.io/ios/app/mywalkhike/id411367294)
- [MyBikeRides](https://appshunter.io/ios/app/mybikerides/id412794701)
- [Account Balance Now](https://appshunter.io/ios/app/account-balance-now/id418775318)

All apps by Robert Wohnoutka: https://appshunter.io/developer/372954100

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-11.*