# Focus Pebble vs Sheldon

The clearest difference is ads: Focus Pebble at none against Sheldon's shown. Sheldon's advantage is update cadence (every 3 days vs every 13 months) and iOS requirement (16.0 vs 18.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Focus Pebble sells 1 one-off in-app purchase and Sheldon sells 7 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Focus Pebble ships an update every 13 months, Sheldon every 3 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Focus Pebble | Sheldon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sheldon-ai-note-taker/id6751587453/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 30 MB |
| Requires iOS | 18.5 | **16.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krystian Kozerawski](https://appshunter.io/developer/1316602430) | [Aya Labs B.V.](https://appshunter.io/developer/1505783699) |

## What reviewers say

### Focus Pebble

[App page](https://appshunter.io/ios/app/focus-pebble/id6748036223)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Pebble Full Version | $1.99 | one-time |


### Sheldon

[App page](https://appshunter.io/ios/app/sheldon-ai-note-taker/id6751587453)

This app records audio, generates accurate transcripts with speaker identification, and creates study materials like summaries and flashcards. It can also process uploaded PDFs and answer questions about your content via an AI chat.

**Highlights:** One-tap audio recording, Smart transcription with speaker labels, AI-generated summaries, flashcards, and quizzes, PDF upload and processing, Interactive AI chat for content questions, Flashcard learning system, Quiz generation and testing

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access | $4.99 | per 7 days |
| Pro Access | $9.99 | per 7 days |
| Sheldon AI Pro | $59.99 | per year |
| Pro Access | $59.99 | per year |
| Pro Access | $99.99 | per year |
| Pro Access | $99.99 | per year |
| Pro Access | $99.99 | per year |


## Frequently asked questions

### Is Focus Pebble free?

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

### Is Sheldon free?

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

### Do Focus Pebble or Sheldon have ads?

Sheldon shows ads; Focus Pebble does not.

### Which is updated more often, Focus Pebble or Sheldon?

Focus Pebble ships an update every 13 months, and Sheldon every 3 days. Most recently, Focus Pebble was updated on November 8, 2026 and Sheldon on November 5, 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.*