# OffOf — Percentage Calculator

> A dedicated utility for calculating percentage discounts and values. (iPhone/iPad app by Daeo Corp. Software.)

- Source: https://appshunter.io/ios/app/offof/id883081837 (this page in markdown: same URL + `.md`)
- Developer: [Daeo Corp. Software](https://appshunter.io/developer/440991527)
- Category: Utilities, Productivity
- Price: $0.99
- Rating: 4.60/5 from 11 App Store ratings · 103 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.2 · 5 MB
- Languages: American English
- Released: 2014-06-04
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/offof/id883081837/reviews.md

## What is OffOf?

A beautiful percentage calculator.

OffOf helps you calculate to percentage OFF of a particular number, and the percentage OF a particular number.

OffOf is NOT a full calculator. Your device already comes with a great calculator. OffOf is a Percentage Calculator ONLY.

• 35% OFF
Instantly know how much you're going to spend while shopping. What is the cost of that $18.99 t-shirt when its 35% off? OffOf makes it easy to calculate. 
Simply enter 35% as the "Percentage" and 18.99 as the "Amount" and OffOf will show you how much you'll be spending after the discount.

• 16% OF
What is 16% of 2,458? OffOf will get you that answer instantly. Just enter 16% as the "Percentage" and 2,458 as the "Amount" and you'll know right away.

• Real, satisfying mechanical keyboard sounds

• Delightful haptic feedback on button presses and more

## Key features

- Calculate percentage OFF
- Calculate percentage OF
- Shopping discount calculations
- Mechanical keyboard sounds
- Haptic feedback

## What do users think of OffOf?

Overall sentiment: negative

**Pros**

- ✨ Gorgeous design
- 👍 Simple and useful utility
- 💯 Best percentage calculator
- ✅ Does what it says
- 💡 Beautifully minimalist
- 🚀 Handy for calculations
- 🌟 Elegant design
- 🎯 Focuses on one thing well

**Cons**

- ❌ Not updated
- ⚠️ Abandoned app
- 📉 No longer works
- 💔 Incompatible with iOS
- ⏳ Outdated
- 🐛 Buggy on newer iOS

**Commonly reported bugs**

- Not compatible with new iOS updates
- App no longer opens/works
- Freezes and force closes

**Most requested features**

- Make it a fully functional calculator
- Update to new software/iOS versions
- Show final price after discount
- Auto clear fields on tap
- Update for X screens

## Recent user reviews (10 of 103)

All indexed reviews: https://appshunter.io/ios/app/offof/id883081837/reviews.md

### 5/5 — Absolutely beautiful

*2024-03-02*

Such a simple and useful utility wrapped in an absolutely gorgeous design. I love how Drew just decided to go so hard on it.

### 3/5 — Make it a functional Calculator

*2024-02-17*

This is a nice app I live the UI, but this is useless right now. Please make it a fully functional calculator. It’ll be beautiful.

### 5/5 — Excellent

*2024-02-16*

It's an excellent application and the design is great 👍

### 1/5 — abandoned

*2023-07-15, version 1.0*

Any app I love or need is always getting cancelled. Apollo, this, Twitterrific 🤬

### 2/5 — Great until it wasn’t

*2023-02-28, version 1.0*

Not updated. Developer dropped off.

### 5/5 — Software update?

*2022-06-15, version 1.0*

Can this be updated to the new software? I love this app so much, and want to be able to use it with my iPhone 12 max pro

### 1/5 — I am so disappointed!!!!

*2022-03-12, version 1.0*

I was hearing great things about this app and halfway through I get a notification that this app needed to be upgraded. Just like the previous person said. I have the IPhone 12 Pro Max, I don’t understand why is this. But oh well moving along!

### 1/5 — No longer works

*2022-03-04, version 1.0*

Seems that devs have abandoned

### 3/5 — I like it but

*2022-02-21*

Needs to be updated so I can use itttt

### 5/5 — Muito bom

*2022-02-19*

Só falta atualização

## Frequently asked questions about OffOf

### What does the OffOf app do?

OffOf is a specialized percentage calculator designed to help users quickly determine the percentage OFF of a number and the percentage OF a number. It's ideal for calculating discounts while shopping or finding a specific percentage of a given amount.

### How do I calculate a discount with OffOf?

To calculate a discount, enter the percentage of the discount (e.g., 35%) into the 'Percentage' field and the original price into the 'Amount' field. The app will then show you the final price after the discount is applied.

### Is OffOf a full calculator?

No, OffOf is not a full-featured calculator. It is exclusively a percentage calculator, meaning it focuses solely on percentage-related calculations and does not perform general arithmetic operations. Your device likely already has a standard calculator for those needs.

### What makes OffOf unique?

OffOf offers a visually appealing interface and includes unique features like real mechanical keyboard sounds and delightful haptic feedback on button presses, enhancing the user experience beyond basic calculation.

### Is OffOf free to use?

Yes, the application is available for free. There are no advertisements or in-app purchases mentioned, suggesting a completely free experience for users.

## Version history (last 3 releases)

### 2.0.1 — 2024-02-18

- Fixed a bug that stopped background music from playing when typing on the OffOf calculator
- Better visuals for the iPhone Mini
- Faster typing

### 2.0 — 2024-02-16

All new app from the ground up! Version 2 is the first update to OffOf in 10 years. Yep, one decade later, the app is new again!

### 1.0 — 2014-06-04

No release notes.

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## More apps by Daeo Corp. Software

- [Filtron](https://appshunter.io/ios/app/filtron/id776224338)
- [Kloc](https://appshunter.io/ios/app/kloc/id1052522044)

All apps by Daeo Corp. Software: https://appshunter.io/developer/440991527

## Related topics

[offon](https://appshunter.io/ios/topics/offon) · [off percentage](https://appshunter.io/ios/topics/off-percentage)

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*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 2026-09-06.*