# Pelyn AI vs TopicFlow

The clearest difference is update cadence: TopicFlow at every 9 days against Pelyn AI's monthly. TopicFlow also leads on device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Pelyn AI sells 2 in-app purchases, starting at $19.99 per month and TopicFlow sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Pelyn AI ships an update monthly, TopicFlow every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Pelyn AI | TopicFlow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/topicflow-ai-notes/id6765620478/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 68 MB | 67 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [datamond](https://appshunter.io/developer/1590954738) | [亦君 潘](https://appshunter.io/developer/1889920920) |

## What reviewers say

### Pelyn AI

[App page](https://appshunter.io/ios/app/pelyn-ai-second-brain/id6748341308)

This app acts as your AI-powered second brain, automatically taking notes, summarizing meetings, and extracting action items. It also offers personalized AI coaching based on your personality and conversation content to help you grow.

**Highlights:** AI note-taking from recordings, Automatic meeting summarization, Action item extraction, Personalized AI coaching, Task management and habit tracking, Growth visualization and keyword analysis

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $19.99 | per month |
| Annual Subscription | $199.00 | per year |


### 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 Pelyn AI free?

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

### Is TopicFlow free?

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

### Do Pelyn AI or TopicFlow have ads?

Neither Pelyn AI nor TopicFlow shows ads.

### Which is updated more often, Pelyn AI or TopicFlow?

Pelyn AI ships an update monthly, and TopicFlow every 9 days. Most recently, Pelyn AI 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.*