# Rank Severity vs OpenNotes

The clearest difference is update cadence: OpenNotes at every 5 days against Rank Severity's every 64 months. Rank Severity's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Rank Severity ships an update every 64 months, OpenNotes every 5 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Rank Severity | OpenNotes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (39 ratings)](https://appshunter.io/ios/app/opennotes-notes-and-pdf-markup/id6771224004/reviews)** |
| Number of ratings | — | **39** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 64 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 16 MB | 45 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martin Keesen](https://appshunter.io/developer/956311240) | [Mark Miller](https://appshunter.io/developer/1836539324) |

## What reviewers say

### Rank Severity

[App page](https://appshunter.io/ios/app/rank-severity/id956311241)

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenNotes

[App page](https://appshunter.io/ios/app/opennotes-notes-and-pdf-markup/id6771224004)

A free, open-source note-taking app designed for handwriting and PDF annotation. Organize notes into folders, import documents, and export your work. It prioritizes privacy with local-first storage and optional iCloud backups.

**Highlights:** Handwriting with Apple Pencil, PDF import and annotation, Add images and text, Folder organization, Local-first privacy, Optional iCloud backup, Export notes

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

**In-app purchases:** none


## Frequently asked questions

### Is Rank Severity free?

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

### Is OpenNotes free?

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

### Do Rank Severity or OpenNotes have ads?

Neither Rank Severity nor OpenNotes shows ads.

### Which is updated more often, Rank Severity or OpenNotes?

Rank Severity ships an update every 64 months, and OpenNotes every 5 days. Most recently, Rank Severity was updated on November 11, 2026 and OpenNotes on November 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.*