# NoteBuddy AI vs SoloPDF

The clearest difference is in-app purchases: SoloPDF at none against NoteBuddy AI's 4. SoloPDF also leads on ads (none vs shown) and device support (4 vs 2). On price and update cadence there is nothing between them.

Both are free to download. NoteBuddy AI sells 4 in-app purchases, starting at $3.99 per 7 days. SoloPDF asks for nothing beyond the download.

NoteBuddy AI ships an update daily, SoloPDF every 2 weeks. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | NoteBuddy AI | SoloPDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 2 weeks |
| Size | 38 MB | 16 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aman Singhal](https://appshunter.io/developer/1806555975) | [向东 李](https://appshunter.io/developer/1885418034) |

## What reviewers say

### NoteBuddy AI

[App page](https://appshunter.io/ios/app/notebuddy-ai-audio-to-text/id6780928907)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly | $3.99 | per 7 days |
| weekly | $6.99 | per 7 days |
| yearly | $49.99 | per year |
| yearly | $69.99 | per year |


### SoloPDF

[App page](https://appshunter.io/ios/app/solopdf/id6787712953)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NoteBuddy AI free?

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

### Is SoloPDF free?

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

### Do NoteBuddy AI or SoloPDF have ads?

NoteBuddy AI shows ads; SoloPDF does not.

### Which is updated more often, NoteBuddy AI or SoloPDF?

NoteBuddy AI ships an update daily, and SoloPDF every 2 weeks. Most recently, NoteBuddy AI was updated on October 9, 2026 and SoloPDF on October 10, 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.*