# DuoArt vs B

The clearest difference is in-app purchases: B at none against DuoArt's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. DuoArt sells 2 in-app purchases, starting at $3.99 per 7 days. B asks for nothing beyond the download.

DuoArt ships an update fortnightly, B every 2 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | DuoArt | B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (230 ratings)](https://appshunter.io/ios/app/duoart-lockscreen-drawing/id6504831207/reviews)** | — |
| Number of ratings | **230** | — |
| Positive reviews | 1.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Subscription | — |
| Size | 19 MB | 92 MB |
| Requires iOS | **16.0** | 17.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nazarii Vovk](https://appshunter.io/developer/1723889767) | [B-A-K Sicherheitsdienstleistungs-GmbH](https://appshunter.io/developer/1779283915) |

## What reviewers say

### DuoArt

[App page](https://appshunter.io/ios/app/duoart-lockscreen-drawing/id6504831207)

Collaborate on art in real-time with another user. Create drawing rooms, invite friends, and draw simultaneously on a shared canvas. Features include a lockscreen illusion for creative surprises and a history to revert to previous versions.

**Highlights:** Real-time collaborative drawing, Create and join drawing rooms, Lockscreen illusion effect, Multiple drawing tools, Drawing history and versioning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Annual | $12.99 | per year |

**What reviewers complain about**

- 💰 Requires payment to use basic features
- 🤔 Confusing and difficult to use
- 🚫 Doesn't work as expected
- 💸 Expensive subscription
- ⚠️ Potential scam


### B

[App page](https://appshunter.io/ios/app/b-a-k/id6738090969)

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

**In-app purchases:** none


## Frequently asked questions

### Is DuoArt free?

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

### Is B free?

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

### Do DuoArt or B have ads?

Neither DuoArt nor B shows ads.

### Which is updated more often, DuoArt or B?

DuoArt ships an update fortnightly, and B every 2 weeks. Most recently, DuoArt was updated on November 4, 2026 and B on October 30, 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.*