# Cortex | AI Habit Tracker vs Marcus AI

The clearest difference is in-app purchases: Cortex | AI Habit Tracker at none against Marcus AI's 3. Cortex | AI Habit Tracker also leads on update cadence (every 3 weeks vs every 2 months). Marcus AI's advantage is ads (none vs shown). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Marcus AI sells 3 in-app purchases, starting at $6.99 per month. Cortex | AI Habit Tracker asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Cortex | AI Habit Tracker against 5.0 for Marcus AI. Both are backed by a comparable volume of ratings — 2 and 5 respectively.

Cortex | AI Habit Tracker ships an update every 3 weeks, Marcus AI every 2 months. Both last shipped on October 31, 2026.

## The numbers

| Metric | Cortex | AI Habit Tracker | Marcus AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/cortex-ai-habit-tracker/id6757570181/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/marcus-ai-habit-tracker/id6761427325/reviews) |
| Number of ratings | 2 | **5** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Freemium |
| Size | 33 MB | 60 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Sean Dickson](https://appshunter.io/developer/1827191515) | [Trail Worm LLC](https://appshunter.io/developer/1889559793) |

## What reviewers say

### Cortex | AI Habit Tracker

[App page](https://appshunter.io/ios/app/cortex-ai-habit-tracker/id6757570181)

This app goes beyond simple checklists by combining daily habit tracking with AI-powered coaching. It analyzes your patterns to provide personalized recommendations, helping you understand why habits stick and improve your consistency.

**Highlights:** Daily habit logging with streaks, Calendar view for consistency, AI-powered personalized coaching, Journaling and notes for reflection, Analytics dashboard for performance, Dark mode design

**Features:** macOS Compatibility

**In-app purchases:** none


### Marcus AI

[App page](https://appshunter.io/ios/app/marcus-ai-habit-tracker/id6761427325)

Build lasting habits with guidance from historical philosophers. Engage in AI-powered chats for motivation and planning, track your progress with streaks and reminders, and visualize your consistency with home screen widgets. Offers a free tier with limited features and a Pro subscription for unlimited AI interaction and advanced analytics.

**Highlights:** Habit tracking with streaks and reminders, AI chat with historical philosophers, Philosopher-guided habit suggestions, Home screen widgets, Encrypted chat content, Full analytics dashboard (Pro)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Marcus AI Pro Monthly | $6.99 | per month |
| Marcus AI Pro Six Month | $34.99 | per 6 months |
| Marcus AI Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is Cortex | AI Habit Tracker free?

Cortex | AI Habit Tracker is free to download, with no in-app purchases.

### Is Marcus AI free?

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

### Which has better reviews, Cortex | AI Habit Tracker or Marcus AI?

Cortex | AI Habit Tracker and Marcus AI are both rated 5.0 out of 5 on the App Store, from 2 and 5 ratings respectively.

### Do Cortex | AI Habit Tracker or Marcus AI have ads?

Cortex | AI Habit Tracker shows ads; Marcus AI does not.

### Which is updated more often, Cortex | AI Habit Tracker or Marcus AI?

Cortex | AI Habit Tracker ships an update every 3 weeks, and Marcus AI every 2 months. Most recently, Cortex | AI Habit Tracker was updated on October 31, 2026 and Marcus AI 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.*