# AI PDF Reader vs TopicFlow

AI PDF Reader and TopicFlow are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. AI PDF Reader sells 2 in-app purchases, starting at $6.99 per 7 days 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.

## The numbers

| Metric | AI PDF Reader | 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 | — | Every 9 days |
| Monetization | — | Freemium |
| Size | 58 MB | 67 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CodeCross](https://appshunter.io/developer/1660793254) | [亦君 潘](https://appshunter.io/developer/1889920920) |

## What reviewers say

### AI PDF Reader

[App page](https://appshunter.io/ios/app/ai-pdf-reader-chat-and-ask/id6761198287)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access to AI PDF Reader | $6.99 | per 7 days |
| Unlimited Access to AI PDF Reader | $19.99 | per month |


### 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 AI PDF Reader free?

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

### Is TopicFlow free?

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

### Do AI PDF Reader or TopicFlow have ads?

Neither AI PDF Reader nor TopicFlow 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.*