# Percent Calculator vs fonio.ai

The clearest difference is in-app purchases: fonio.ai at none against Percent Calculator's 1. fonio.ai also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Percent Calculator sells 1 one-off in-app purchase. fonio.ai asks for nothing beyond the download.

Percent Calculator ships an update every 5 weeks, fonio.ai every 2 days. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Percent Calculator | fonio.ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fonioai/id6774538486/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 45 MB | 60 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Vasilii Polovnikov](https://appshunter.io/developer/1716165883) | [fonio GmbH](https://appshunter.io/developer/6774538488) |

## What reviewers say

### Percent Calculator

[App page](https://appshunter.io/ios/app/percent-calculator-discount/id6772562697)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium · Lifetime | $7.99 | one-time |


### fonio.ai

[App page](https://appshunter.io/ios/app/fonioai/id6774538486)

This app allows users to make and receive business calls using their existing Fonio phone numbers. It provides features like selecting outgoing caller ID, viewing call history, and searching contacts. An active Fonio business account and internet connection are required for use.

**Highlights:** Make and answer business calls, Select outgoing caller ID, View call history, Search and call contacts, Manage Fonio phone numbers

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

**In-app purchases:** none


## Frequently asked questions

### Is Percent Calculator free?

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

### Is fonio.ai free?

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

### Do Percent Calculator or fonio.ai have ads?

Percent Calculator shows ads; fonio.ai does not.

### Which is updated more often, Percent Calculator or fonio.ai?

Percent Calculator ships an update every 5 weeks, and fonio.ai every 2 days. Most recently, Percent Calculator was updated on September 8, 2026 and fonio.ai on September 20, 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.*