# Instash vs KnowScroll

The clearest difference is in-app purchases: Instash at none against KnowScroll's 1. Instash also leads on ads (none vs shown) and iOS requirement (13.0 vs 16.4). On price, update cadence and device support there is nothing between them.

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

Instash ships an update every 10 days, KnowScroll every 8 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Instash | KnowScroll |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 8 days** |
| Size | 7 MB | 74 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tanishq Jain](https://appshunter.io/developer/1896529288) | [Vu Viet Duc](https://appshunter.io/developer/1888927607) |

## What reviewers say

### Instash

[App page](https://appshunter.io/ios/app/instash-microlearning-content/id6768005995)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Instash free?

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

### Is KnowScroll free?

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

### Do Instash or KnowScroll have ads?

KnowScroll shows ads; Instash does not.

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

Instash ships an update every 10 days, and KnowScroll every 8 days. Most recently, Instash was updated on October 31, 2026 and KnowScroll on October 31, 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.*