# 100% Percent Calculator vs PanicButton+

The clearest difference is price: 100% Percent Calculator at Free against PanicButton+'s $1.99. 100% Percent Calculator also leads on update cadence (every 10 days vs every 12 months). PanicButton+'s advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

100% Percent Calculator is free to download; PanicButton+ costs $1.99 up front. 100% Percent Calculator sells 4 one-off in-app purchases. PanicButton+ asks for nothing beyond the download.

100% Percent Calculator ships an update every 10 days, PanicButton+ every 12 months. The most recent releases landed on October 2, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 100% Percent Calculator | PanicButton+ |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/100-percent-calculator/id1080209973/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 12 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 18.0 | **17.5** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Andre Johansen](https://appshunter.io/developer/1080209972) | [Paulo Correia](https://appshunter.io/developer/1237073918) |

## What reviewers say

### 100% Percent Calculator

[App page](https://appshunter.io/ios/app/100-percent-calculator/id1080209973)

This app simplifies complex percentage calculations using natural language, making it accessible for individuals with dyscalculia or a fear of numbers. It helps with discounts, sales tax, tips, and more, offering an intuitive interface that guides users through problems.

**Highlights:** Natural language calculations, Discount calculations, Sales tax and VAT addition, Tip calculation, Intuitive user interface, Dyscalculia-friendly

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small | $0.99 | one-time |
| Medium | $1.99 | one-time |
| Large | $2.99 | one-time |
| 100% Pro | $19.99 | one-time |


### PanicButton+

[App page](https://appshunter.io/ios/app/panicbutton-plus/id1245628375)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 100% Percent Calculator free?

100% Percent Calculator is free to download, with in-app purchases available.

### Is PanicButton+ free?

PanicButton+ costs $1.99, with no in-app purchases.

### Do 100% Percent Calculator or PanicButton+ have ads?

Neither 100% Percent Calculator nor PanicButton+ shows ads.

### Which is updated more often, 100% Percent Calculator or PanicButton+?

100% Percent Calculator ships an update every 10 days, and PanicButton+ every 12 months. Most recently, 100% Percent Calculator was updated on October 2, 2026 and PanicButton+ on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*