# DoU vs Zero Degrees

The clearest difference is in-app purchases: Zero Degrees at none against DoU's 1. DoU'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. DoU sells 1 in-app purchase, starting at $6.00 per month. Zero Degrees asks for nothing beyond the download.

## The numbers

| Metric | DoU | Zero Degrees |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zero-degrees/id6765831000/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | — | Free |
| Size | 36 MB | 2.4 GB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lemon Cloud Co., Ltd.](https://appshunter.io/developer/1438385187) | [Bradley White](https://appshunter.io/developer/1888816910) |

## What reviewers say

### DoU

[App page](https://appshunter.io/ios/app/dou-personal-messenger/id6758658673)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DoU Pro 1 (1 Account) | $6.00 | per month |


### Zero Degrees

[App page](https://appshunter.io/ios/app/zero-degrees/id6765831000)

This app connects you with strangers who share similar thoughts through temporary, anonymous chat rooms. Choose between 'Think' mode for resonance or 'Debate' mode for counterpoints, with local on-device debate judging for privacy.

**Highlights:** Anonymous conversations, Temporary chat rooms, Think mode for resonance, Debate mode for counterpoints, On-device debate judging, Encrypted chat messages, No accounts or friends lists

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

**In-app purchases:** none


## Frequently asked questions

### Is DoU free?

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

### Is Zero Degrees free?

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

### Do DoU or Zero Degrees have ads?

Neither DoU nor Zero Degrees shows ads.

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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.*