# Blekk | Notes vs Otto AI

Blekk | Notes and Otto AI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Blekk | Notes sells 2 in-app purchases, starting at $3.99 per month and Otto AI sells 6 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Blekk | Notes ships an update every 5 days, Otto AI every 9 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Blekk | Notes | Otto AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/blekk-notes/id6788084381/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 12 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jamie Druitt](https://appshunter.io/developer/6788084383) | [Arghyadeep Karmakar](https://appshunter.io/developer/6790373278) |

## What reviewers say

### Blekk | Notes

[App page](https://appshunter.io/ios/app/blekk-notes/id6788084381)

This app offers a simple, elegant notebook, task tracker, and journal. It provides a fresh page for each day on a single scroll, with easy search and offline functionality. Multiple notebooks, PIN locking, and sharing options are available.

**Highlights:** Daily fresh pages on a single scroll, Task tracking with checkboxes, Searchable notes and tags, Multiple notebooks with custom pens, PIN-locked notebooks, Offline functionality, Shareable notebooks

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blekk Plus Monthly | $3.99 | per month |
| Blekk Plus Annual | $34.99 | per year |


### Otto AI

[App page](https://appshunter.io/ios/app/otto-ai-email-assistant/id6790373276)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otto Plus | $1.99 | per 7 days |
| Otto Pro | $5.99 | per 7 days |
| Otto Plus | $6.99 | per month |
| Otto Pro | $19.99 | per month |
| Otto Plus | $55.99 | per year |
| Otto Pro | $159.99 | per year |


## Frequently asked questions

### Is Blekk | Notes free?

Blekk | Notes is free to download, with in-app purchases available.

### Is Otto AI free?

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

### Do Blekk | Notes or Otto AI have ads?

Neither Blekk | Notes nor Otto AI shows ads.

### Which is updated more often, Blekk | Notes or Otto AI?

Blekk | Notes ships an update every 5 days, and Otto AI every 9 days. Most recently, Blekk | Notes was updated on October 25, 2026 and Otto AI on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*