# Heatmap Studio vs Locck

The clearest difference is in-app purchases: Heatmap Studio at none against Locck's 3. Locck's advantage is ads (none vs shown) and update cadence (every 2 days vs every 12 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Locck sells 3 in-app purchases, starting at $0.99 per month. Heatmap Studio asks for nothing beyond the download.

Heatmap Studio ships an update every 12 months, Locck every 2 days. The most recent releases landed on October 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Heatmap Studio | Locck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 2 days** |
| Size | 5 MB | 62 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Japality Limited](https://appshunter.io/developer/1574046707) | [Mete Kagan Musaak](https://appshunter.io/developer/1866077816) |

## What reviewers say

### Heatmap Studio

[App page](https://appshunter.io/ios/app/heatmap-studio/id6753347701)

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

**In-app purchases:** none


### Locck

[App page](https://appshunter.io/ios/app/locck-never-forget-notes/id6788079507)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Locck Pro Monthly | $0.99 | per month |
| Locck Pro Yearly | $4.99 | per year |
| Locck - Lifetime | $8.99 | one-time |


## Frequently asked questions

### Is Heatmap Studio free?

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

### Is Locck free?

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

### Do Heatmap Studio or Locck have ads?

Heatmap Studio shows ads; Locck does not.

### Which is updated more often, Heatmap Studio or Locck?

Heatmap Studio ships an update every 12 months, and Locck every 2 days. Most recently, Heatmap Studio was updated on October 20, 2026 and Locck on September 22, 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.*