# KnowScroll vs Papirio

The clearest difference is in-app purchases: Papirio at none against KnowScroll's 1. Papirio also leads on ads (none vs shown) and device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. KnowScroll sells 1 one-off in-app purchase. Papirio asks for nothing beyond the download.

## The numbers

| Metric | KnowScroll | Papirio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Size | 74 MB | 34 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vu Viet Duc](https://appshunter.io/developer/1888927607) | [Miguel Agustin Carbajal](https://appshunter.io/developer/6777477639) |

## What reviewers say

### KnowScroll

[App page](https://appshunter.io/ios/app/knowscroll-knowledge-feed/id6780197640)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $49.99 | one-time |


### Papirio

[App page](https://appshunter.io/ios/app/papirio-daily-curiosities/id6796360637)

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

**In-app purchases:** none


## Frequently asked questions

### Is KnowScroll free?

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

### Is Papirio free?

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

### Do KnowScroll or Papirio have ads?

KnowScroll shows ads; Papirio does not.

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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.*