# Comprehending vs PASSIO

The clearest difference is update cadence: PASSIO at fortnightly against Comprehending's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Comprehending ships an update every 5 weeks, PASSIO fortnightly. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Comprehending | PASSIO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 64 MB | 88 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Wakeflow Ltd.](https://appshunter.io/developer/1718235829) | [Loris BOUGEARD](https://appshunter.io/developer/1881298052) |

## What reviewers say

### Comprehending

[App page](https://appshunter.io/ios/app/comprehending/id6764537405)

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

**In-app purchases:** none


### PASSIO

[App page](https://appshunter.io/ios/app/passio-general-knowledge/id6809515223)

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

**In-app purchases:** none


## Frequently asked questions

### Is Comprehending free?

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

### Is PASSIO free?

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

### Do Comprehending or PASSIO have ads?

Neither Comprehending nor PASSIO shows ads.

### Which is updated more often, Comprehending or PASSIO?

Comprehending ships an update every 5 weeks, and PASSIO fortnightly. Most recently, Comprehending was updated on October 3, 2026 and PASSIO on October 10, 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.*