# Liner vs DooBee

The clearest difference is in-app purchases: DooBee at none against Liner's 10. Liner's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Liner sells 9 in-app purchases, starting at $14.99 per month. DooBee asks for nothing beyond the download.

Liner ships an update weekly, DooBee every 2 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Liner | DooBee |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (1.4K ratings)](https://appshunter.io/ios/app/liner-ai-search-chat-write/id955395198/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 39.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 122 MB | 97 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Liner Corp.](https://appshunter.io/developer/955395197) | [Gowell Solutions Pty Ltd](https://appshunter.io/developer/1677473122) |

## What reviewers say

### Liner

[App page](https://appshunter.io/ios/app/liner-ai-search-chat-write/id955395198)

This AI-powered assistant provides accurate answers to your questions, summarizes content, and solves problems using advanced AI models. It can analyze photos, files, and YouTube videos, offering reliable information backed by reputable sources.

**Highlights:** Accurate AI search, Summarize YouTube videos, Solve problems from photos, Analyze uploaded files, Chat with photos, Multiple AI models

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Monthly | $14.99 | per month |
| Liner Pro | $17.99 | per month |
| Liner Pro | $17.99 | per month |
| Professional Monthly | $35.99 | per month |
| Liner Max | $35.99 | per month |
| Professional Yearly | $175.99 | per year |
| Professional Yearly | $175.99 | per year |
| Professional Yearly | $195.99 | per year |
| Professional Yearly | $324.99 | per year |


### DooBee

[App page](https://appshunter.io/ios/app/doobee/id6775821157)

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

**In-app purchases:** none


## Frequently asked questions

### Is Liner free?

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

### Is DooBee free?

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

### Do Liner or DooBee have ads?

Neither Liner nor DooBee shows ads.

### Which is updated more often, Liner or DooBee?

Liner ships an update weekly, and DooBee every 2 months. Most recently, Liner was updated on November 9, 2026 and DooBee on October 31, 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.*