# Iris vs CogniLog

The clearest difference is in-app purchases: CogniLog at none against Iris's 2. Iris's advantage is iOS requirement (16.4 vs 26.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Iris sells 2 in-app purchases, starting at $3.99 per month. CogniLog asks for nothing beyond the download.

Iris ships an update every 3 weeks, CogniLog every 2 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Iris | CogniLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cognilog-work-log/id6787191035/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 53 MB | 53 MB |
| Requires iOS | **16.4** | 26.2 |
| Devices | iPhone | **iPhone, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [KENNETH CHIN WEI YOW](https://appshunter.io/developer/6783362022) | [Rivet Rune LLC](https://appshunter.io/developer/1104581884) |

## What reviewers say

### Iris

[App page](https://appshunter.io/ios/app/iris-work-notes/id6783362020)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Iris Plus Monthly | $3.99 | per month |
| Iris Plus Yearly | $29.99 | per year |


### CogniLog

[App page](https://appshunter.io/ios/app/cognilog-work-log/id6787191035)

This app helps you document your work, capturing decisions and reasoning. It allows an AI assistant to read your log and answer questions about your past activities. Entries are plain text with Markdown support, and a visual almanac helps you navigate your history.

**Highlights:** AI-powered work log analysis, Plain text entries with Markdown, Visual almanac for historical navigation, Project-based channels and #tags, Cross-device sync via iCloud, Import from other note-taking apps

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Iris free?

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

### Is CogniLog free?

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

### Do Iris or CogniLog have ads?

Neither Iris nor CogniLog shows ads.

### Which is updated more often, Iris or CogniLog?

Iris ships an update every 3 weeks, and CogniLog every 2 weeks. Most recently, Iris was updated on October 31, 2026 and CogniLog 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.*