# MutLab vs Calcium

The clearest difference is in-app purchases: MutLab at none against Calcium's 3. MutLab also leads on ads (none vs shown) and update cadence (every 2 months vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calcium sells 3 in-app purchases, starting at $4.99 per month. MutLab asks for nothing beyond the download.

MutLab ships an update every 2 months, Calcium every 7 months. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MutLab | Calcium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calcium-ai-powered/id1631181354/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 52 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mutlab](https://appshunter.io/developer/1363984051) | [Two Platforms Inc.](https://appshunter.io/developer/1589333017) |

## What reviewers say

### MutLab

[App page](https://appshunter.io/ios/app/mutlab/id1576343740)

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

**In-app purchases:** none


### Calcium

[App page](https://appshunter.io/ios/app/calcium-ai-powered/id1631181354)

This app provides daily motivational quotes generated by AI to help users overcome anxiety and negative thoughts. It encourages positive growth and resilience in the face of life's challenges. Users can receive one quote for free or upgrade for more.

**Highlights:** AI-generated motivational quotes, Daily inspirational messages, Positive mindset encouragement, Overcome anxiety and worries, Premium upgrade for more quotes

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription (1 Month) | $4.99 | per month |
| Premium Subscription (1 Year) | $29.99 | per year |
| Quote for the day | $0.99 | one-time |


## Frequently asked questions

### Is MutLab free?

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

### Is Calcium free?

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

### Do MutLab or Calcium have ads?

Calcium shows ads; MutLab does not.

### Which is updated more often, MutLab or Calcium?

MutLab ships an update every 2 months, and Calcium every 7 months. Most recently, MutLab was updated on November 10, 2026 and Calcium on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*