# ReadNotes vs ShelfMark

The clearest difference is update cadence: ShelfMark at weekly against ReadNotes's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ReadNotes sells 2 in-app purchases, starting at $4.99 per month and ShelfMark sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReadNotes ships an update monthly, ShelfMark weekly. The most recent releases landed on June 3, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | ReadNotes | ShelfMark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/readnotes-book-tracker/id6757447671/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Freemium | — |
| Size | 14 MB | 6 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AKSHAT ROHELLA](https://appshunter.io/developer/1867029338) | [InnovaLabWorks](https://appshunter.io/developer/1888514726) |

## What reviewers say

### ReadNotes

[App page](https://appshunter.io/ios/app/readnotes-book-tracker/id6757447671)

This app helps you remember what you read by taking notes while you read, cleaning them with AI, and generating key takeaways. It tracks your reading progress, builds a personal knowledge library, and offers spaced repetition flashcards.

**Highlights:** AI-powered note cleaning, Key takeaway generation, Reading progress tracking, Spaced repetition flashcards, Personal knowledge library, Reading statistics and streaks, Goodreads library import

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadNotes+ Monthly | $4.99 | per month |
| ReadNotes+ Annual | $19.99 | per year |


### ShelfMark

[App page](https://appshunter.io/ios/app/shelfmark-reading-tracker/id6788129809)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ShelfMark Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is ReadNotes free?

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

### Is ShelfMark free?

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

### Do ReadNotes or ShelfMark have ads?

Neither ReadNotes nor ShelfMark shows ads.

### Which is updated more often, ReadNotes or ShelfMark?

ReadNotes ships an update monthly, and ShelfMark weekly. Most recently, ReadNotes was updated on June 3, 2026 and ShelfMark on September 15, 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.*