# KnowScroll vs Curio

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

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

KnowScroll ships an update weekly, Curio every 10 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | KnowScroll | Curio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Size | 74 MB | 3 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Vu Viet Duc](https://appshunter.io/developer/1888927607) | [Alex Zaloum](https://appshunter.io/developer/6787524964) |

## 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 |


### Curio

[App page](https://appshunter.io/ios/app/curio-curated-facts/id6787524962)

**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 Curio free?

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

### Do KnowScroll or Curio have ads?

KnowScroll shows ads; Curio does not.

### Which is updated more often, KnowScroll or Curio?

KnowScroll ships an update weekly, and Curio every 10 days. Most recently, KnowScroll was updated on October 5, 2026 and Curio on October 6, 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.*