# CogniLog vs Calcium Text Calculator

The clearest difference is update cadence: Calcium Text Calculator at every 5 days against CogniLog's every 2 weeks. Calcium Text Calculator also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CogniLog ships an update every 2 weeks, Calcium Text Calculator every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CogniLog | Calcium Text Calculator |
| --- | --- | --- |
| 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 | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 53 MB | 3 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | iPhone, Mac | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Rivet Rune LLC](https://appshunter.io/developer/1104581884) | [Twarge LLC](https://appshunter.io/developer/6781456673) |

## What reviewers say

### 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


### Calcium Text Calculator

[App page](https://appshunter.io/ios/app/calcium-text-calculator/id6795935652)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CogniLog free?

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

### Is Calcium Text Calculator free?

Calcium Text Calculator is free to download, with no in-app purchases.

### Do CogniLog or Calcium Text Calculator have ads?

Neither CogniLog nor Calcium Text Calculator shows ads.

### Which is updated more often, CogniLog or Calcium Text Calculator?

CogniLog ships an update every 2 weeks, and Calcium Text Calculator every 5 days. Most recently, CogniLog was updated on November 5, 2026 and Calcium Text Calculator on October 31, 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.*