# PolyChat vs Knock Knock

The clearest difference is in-app purchases: Knock Knock at none against PolyChat's 8. Knock Knock also leads on update cadence (daily vs every 2 months). PolyChat's advantage is iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PolyChat sells 8 one-off in-app purchases. Knock Knock asks for nothing beyond the download.

PolyChat ships an update every 2 months, Knock Knock daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PolyChat | Knock Knock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 22 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Chengdu FlipGrav Technology Co., Ltd.](https://appshunter.io/developer/6791217760) | [Viraat Das](https://appshunter.io/developer/1239103283) |

## What reviewers say

### PolyChat

[App page](https://appshunter.io/ios/app/polychat-chat-with-natives/id6738615540)

Practice real-world conversations with native speakers to improve your language and communication skills. Immerse yourself in authentic dialogue to build fluency and confidence, expanding your vocabulary and cultural understanding.

**Highlights:** Interactive sessions with native speakers, Expand vocabulary and listening skills, Gain cultural insights, Build conversational fluency, Reading and translation exercises, Practical communication tips

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 110Coins | $1.99 | one-time |
| 340Coins | $5.99 | one-time |
| vip | $9.99 | one-time |
| 630Coins | $10.99 | one-time |
| 1300Coins | $20.99 | one-time |
| 2700Coins | $40.99 | one-time |
| 6800Coins | $100.99 | one-time |
| 14000Coins | $199.99 | one-time |


### Knock Knock

[App page](https://appshunter.io/ios/app/knock-knock-5-minute-dates/id6774902208)

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

**In-app purchases:** none


## Frequently asked questions

### Is PolyChat free?

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

### Is Knock Knock free?

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

### Do PolyChat or Knock Knock have ads?

Neither PolyChat nor Knock Knock shows ads.

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

PolyChat ships an update every 2 months, and Knock Knock daily. Most recently, PolyChat was updated on October 24, 2026 and Knock Knock on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*