# Nano Notes vs Project Iris

The clearest difference is in-app purchases: Nano Notes at none against Project Iris's 1. Nano Notes also leads on ratings volume (150 vs 13) and device support (4 vs 2). Project Iris's advantage is update cadence (every 4 days vs every 3 months) and review sentiment (100% vs 83%). On price, ads and monetization model there is nothing between them.

Both are free to download. Project Iris sells 1 one-off in-app purchase. Nano Notes asks for nothing beyond the download.

Project Iris holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Nano Notes has 150 ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 83% of Nano Notes's written reviews are positive against 100% of Project Iris's.

Nano Notes ships an update every 3 months, Project Iris every 4 days. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Nano Notes | Project Iris |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (150 ratings)](https://appshunter.io/ios/app/nano-notes/id1445942906/reviews) | **[5.0 (13 ratings)](https://appshunter.io/ios/app/project-iris-watch-browser/id6477305403/reviews)** |
| Number of ratings | **150** | 13 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 7 MB | 51 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Vincent Tourraine](https://appshunter.io/developer/308598599) | [力 雷](https://appshunter.io/developer/1746429413) |

## What reviewers say

### Nano Notes

[App page](https://appshunter.io/ios/app/nano-notes/id1445942906)

Capture thoughts and ideas instantly with a simple note-taking tool. Access and review your notes conveniently on your Apple Watch.

**Highlights:** Quick note creation, Apple Watch access, Simple interface, Instant synchronization

**Features:** macOS Compatibility

**In-app purchases:** none


### Project Iris

[App page](https://appshunter.io/ios/app/project-iris-watch-browser/id6477305403)

This utility app offers a streamlined browsing experience with advanced engine capabilities. It allows for private browsing, history management, and customizable search engines, all optimized for accessibility and supporting multiple languages.

**Highlights:** State-of-the-art browsing engine, Keyword and URL distinction, Bookmark management, Private browsing mode, History recording, Customizable search engine, History and bookmark locking

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Iris Vision | $3.99 | one-time |


## Frequently asked questions

### Is Nano Notes free?

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

### Is Project Iris free?

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

### Which has better reviews, Nano Notes or Project Iris?

Project Iris is rated higher. Nano Notes averages 4.8 out of 5 from 150 ratings, while Project Iris averages 5.0 from 13 ratings.

### Do Nano Notes or Project Iris have ads?

Neither Nano Notes nor Project Iris shows ads.

### Which is updated more often, Nano Notes or Project Iris?

Nano Notes ships an update every 3 months, and Project Iris every 4 days. Most recently, Nano Notes was updated on September 13, 2026 and Project Iris on September 23, 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.*