# KnocQnow vs ClipStack

The clearest difference is in-app purchases: KnocQnow at none against ClipStack's 3. KnocQnow also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.4). ClipStack's advantage is update cadence (every 2 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. ClipStack sells 3 one-off in-app purchases. KnocQnow asks for nothing beyond the download.

KnocQnow ships an update fortnightly, ClipStack every 2 days. The most recent releases landed on September 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | KnocQnow | ClipStack |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 73 MB | 14 MB |
| Requires iOS | **13.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Minami](https://appshunter.io/developer/1797696282) | [Hiroyuki Sonozuka](https://appshunter.io/developer/1528423565) |

## What reviewers say

### KnocQnow

[App page](https://appshunter.io/ios/app/knocqnow/id6499095123)

**Features:** macOS Compatibility

**In-app purchases:** none


### ClipStack

[App page](https://appshunter.io/ios/app/clipstack-save-and-reuse-text/id6745993701)

This utility app saves copied text for later reuse, preventing you from losing important information. It offers features like quick recopying, pinning favorites, and organizing snippets into folders. Customize the appearance and support the developer with optional tips.

**Highlights:** Save and reuse copied text, Pin favorite phrases, Organize text by folder, Customize theme colors, Quick recopy with one tap, Duplicate entries move to top

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Donut | $1.99 | one-time |
| Lunch | $2.99 | one-time |


## Frequently asked questions

### Is KnocQnow free?

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

### Is ClipStack free?

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

### Do KnocQnow or ClipStack have ads?

ClipStack shows ads; KnocQnow does not.

### Which is updated more often, KnocQnow or ClipStack?

KnocQnow ships an update fortnightly, and ClipStack every 2 days. Most recently, KnocQnow was updated on September 14, 2026 and ClipStack on September 23, 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.*