# Doptyn vs Knock

Doptyn and Knock are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Doptyn ships an update every 9 days, Knock weekly. The most recent releases landed on November 10, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Doptyn | Knock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Size | 84 MB | 31 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Nikhilesh Waghmare](https://appshunter.io/developer/6779132186) | [SpikeWave (Pty) Ltd](https://appshunter.io/developer/6822832658) |

## What reviewers say

### Doptyn

[App page](https://appshunter.io/ios/app/doptyn/id6779132064)

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

**In-app purchases:** none


### Knock

[App page](https://appshunter.io/ios/app/knock-private-chat/id6805250807)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Doptyn free?

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

### Is Knock free?

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

### Do Doptyn or Knock have ads?

Neither Doptyn nor Knock shows ads.

### Which is updated more often, Doptyn or Knock?

Doptyn ships an update every 9 days, and Knock weekly. Most recently, Doptyn was updated on November 10, 2026 and Knock on November 13, 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.*