# Percentages Calculator vs EigenAlert

The clearest difference is price: EigenAlert at Free against Percentages Calculator's $0.99. EigenAlert also leads on update cadence (every 5 weeks vs every 4 months). Percentages Calculator's advantage is chart position (#169 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

EigenAlert is free to download; Percentages Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Percentages Calculator ships an update every 4 months, EigenAlert every 5 weeks. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Percentages Calculator | EigenAlert |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/percentages-calculator/id528727630/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 95.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | — |
| Best chart rank | **#169** | — |
| Size | 2 MB | 31 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Tsopanakis](https://appshunter.io/developer/471022214) | [EigenRisk Inc](https://appshunter.io/developer/1177423670) |

## What reviewers say

### Percentages Calculator

[App page](https://appshunter.io/ios/app/percentages-calculator/id528727630)

**Currently charting:** #169 Top Paid · Business (US App Store)

Effortlessly perform complex percentage calculations with this intuitive tool. It offers nine distinct functions to handle increases, decreases, percentage changes, and finding original values. Copy results instantly for quick use.

**Highlights:** Increase value by percent, Decrease value by percent, Calculate percentage of a number, Calculate percent change, Find original value before increase/decrease, Fraction to percent conversion, Copy result to clipboard

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Intuitive interface
- 🚀 Quick calculations
- 👍 Helpful for various use cases
- 🚀 Efficient and accurate

**What reviewers complain about**

- 🔍 Could use more advanced features
- 🔍 Lacks customization options
- 🔍 Text could be larger for better visibility

**Reported bugs**

- Occasional crashes or freezes
- Compatibility issues with older devices

**Requested features**

- Dark mode option
- Ability to save and recall previous calculations
- More percentage calculation types
- Option to display formulas


### EigenAlert

[App page](https://appshunter.io/ios/app/eigenalert/id6550895336)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Percentages Calculator free?

Percentages Calculator costs $0.99, with no in-app purchases.

### Is EigenAlert free?

EigenAlert is free to download, with no in-app purchases.

### Do Percentages Calculator or EigenAlert have ads?

Neither Percentages Calculator nor EigenAlert shows ads.

### Which is updated more often, Percentages Calculator or EigenAlert?

Percentages Calculator ships an update every 4 months, and EigenAlert every 5 weeks. Most recently, Percentages Calculator was updated on October 16, 2026 and EigenAlert on October 3, 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.*