# Open MobileUI vs TopicFlow

The clearest difference is rating: TopicFlow at 5.0 against Open MobileUI's 3.5. TopicFlow also leads on device support (3 vs 1). Open MobileUI's advantage is in-app purchases (none vs 3) and ratings volume (28 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. TopicFlow sells 3 in-app purchases, starting at $4.99 per month. Open MobileUI asks for nothing beyond the download.

TopicFlow holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Open MobileUI has 28 ratings behind it against 1, so its average is the more settled of the two.

Open MobileUI ships an update weekly, TopicFlow every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Open MobileUI | TopicFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (28 ratings)](https://appshunter.io/ios/app/open-mobileui/id6754266176/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/topicflow-ai-notes/id6765620478/reviews)** |
| Number of ratings | **28** | 1 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Free** | Freemium |
| Size | 64 MB | 67 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ronas IT OU](https://appshunter.io/developer/1155581652) | [亦君 潘](https://appshunter.io/developer/1889920920) |

## What reviewers say

### Open MobileUI

[App page](https://appshunter.io/ios/app/open-mobileui/id6754266176)

This native mobile client allows you to connect to your self-hosted AI models via Open WebUI. Chat with your AI, manage conversations, and utilize features like web search and image generation, all while maintaining control over your data with no ads.

**Highlights:** Connect to self-hosted AI models, Real-time streaming responses, Edit and regenerate AI responses, Attach photos, files, and web pages, Voice mode for hands-free interaction, Organize chats with folders and archives, Export and share conversations

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

**In-app purchases:** none


### TopicFlow

[App page](https://appshunter.io/ios/app/topicflow-ai-notes/id6765620478)

This app transforms AI conversations into structured, reusable notes, plans, and summaries. It allows users to branch discussions for focused follow-ups and capture key ideas before they are lost. Organize your AI-generated content locally and export it when ready.

**Highlights:** Transform AI chats into reusable notes, Branch conversations for focused follow-ups, Capture and organize key ideas, Refocus AI discussions without re-prompting, Export and share selected content, Local topic history organization, Connect own AI provider keys

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TopicFlow Monthly Subscription | $4.99 | per month |
| TopicFlow Yearly Subscription | $29.99 | per year |
| TopicFlow Lifetime Access | $69.99 | one-time |


## Frequently asked questions

### Is Open MobileUI free?

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

### Is TopicFlow free?

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

### Which has better reviews, Open MobileUI or TopicFlow?

TopicFlow is rated higher. Open MobileUI averages 3.5 out of 5 from 28 ratings, while TopicFlow averages 5.0 from 1 ratings.

### Do Open MobileUI or TopicFlow have ads?

Neither Open MobileUI nor TopicFlow shows ads.

### Which is updated more often, Open MobileUI or TopicFlow?

Open MobileUI ships an update weekly, and TopicFlow every 9 days. Most recently, Open MobileUI was updated on October 30, 2026 and TopicFlow on October 31, 2026.

---

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