# Notable PDF vs Rhizo

The clearest difference is rating: Rhizo at 5.0 against Notable PDF's 4.2. Rhizo also leads on review sentiment (100% vs 80%) and price ($0.99 vs $4.99). Notable PDF's advantage is update cadence (fortnightly vs every 7 months) and ratings volume (5 vs 1). On ads, in-app purchases, monetization model and device support there is nothing between them.

Notable PDF costs $4.99 and Rhizo $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rhizo holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Notable PDF has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Notable PDF's written reviews are positive against 100% of Rhizo's.

Notable PDF ships an update fortnightly, Rhizo every 7 months. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Notable PDF | Rhizo |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/notable-pdf/id6443635954/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rhizo-freeform-mind-map/id6759258516/reviews)** |
| Number of ratings | **5** | 1 |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 34 MB | 19 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [INVICTO SOLUTIONS D.O.O.](https://appshunter.io/developer/1647958798) | [现兴 闫](https://appshunter.io/developer/1875449831) |

## What reviewers say

### Notable PDF

[App page](https://appshunter.io/ios/app/notable-pdf/id6443635954)

Enhance your PDF documents by adding a customizable note-taking layer. Tailor the layout with lines, grids, colors, and sizes to suit your workflow on tablets or paper.

**Highlights:** Add notes to PDFs, Customizable note layout, Lines and grid options, Color and size adjustments, Left-handed mode

**Features:** macOS Compatibility

**In-app purchases:** none


### Rhizo

[App page](https://appshunter.io/ios/app/rhizo-freeform-mind-map/id6759258516)

This app offers a fluid and tactile mind-mapping experience, allowing users to capture and organize thoughts without forced structure. It prioritizes a minimalist interface and seamless interaction for a stress-free creative process. Ideas can be exported in various formats, ensuring data ownership.

**Highlights:** Kinetic thought nodes with physics simulation, Minimalist gestures for idea creation and connection, Infinite canvas with auto-adaptive nodes, Seamless export to JSON and PNG, Local data storage for absolute privacy, Ad-free and no in-app purchases

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

**In-app purchases:** none


## Frequently asked questions

### Is Notable PDF free?

Notable PDF costs $4.99, with no in-app purchases.

### Is Rhizo free?

Rhizo costs $0.99, with no in-app purchases.

### Which has better reviews, Notable PDF or Rhizo?

Rhizo is rated higher. Notable PDF averages 4.2 out of 5 from 5 ratings, while Rhizo averages 5.0 from 1 ratings.

### Do Notable PDF or Rhizo have ads?

Neither Notable PDF nor Rhizo shows ads.

### Which is updated more often, Notable PDF or Rhizo?

Notable PDF ships an update fortnightly, and Rhizo every 7 months. Most recently, Notable PDF was updated on October 6, 2026 and Rhizo on October 16, 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.*