# Marcus AI vs When Did I Last

The clearest difference is update cadence: When Did I Last at every 3 weeks against Marcus AI's every 2 months. On price, ads, in-app purchases 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 and When Did I Last sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Marcus AI ships an update every 2 months, When Did I Last every 3 weeks. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Marcus AI | When Did I Last |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/marcus-ai-habit-tracker/id6761427325/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 60 MB | 37 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Trail Worm LLC](https://appshunter.io/developer/1889559793) | [AARON ROSS JACOBSEN](https://appshunter.io/developer/6795327692) |

## What reviewers say

### 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 |


### When Did I Last

[App page](https://appshunter.io/ios/app/when-did-i-last-task-tracker/id6795327450)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $4.99 | one-time |


## Frequently asked questions

### Is Marcus AI free?

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

### Is When Did I Last free?

When Did I Last is free to download, with in-app purchases available.

### Do Marcus AI or When Did I Last have ads?

Neither Marcus AI nor When Did I Last shows ads.

### Which is updated more often, Marcus AI or When Did I Last?

Marcus AI ships an update every 2 months, and When Did I Last every 3 weeks. Most recently, Marcus AI was updated on October 12, 2026 and When Did I Last on October 14, 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.*