# Outline vs BlockLab

The clearest difference is in-app purchases: Outline at none against BlockLab's 1. Outline also leads on update cadence (weekly vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BlockLab sells 1 one-off in-app purchase. Outline asks for nothing beyond the download.

Outline ships an update weekly, BlockLab every 2 weeks. The most recent releases landed on September 14, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Outline | BlockLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 69 MB | 6 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hyundong Kim](https://appshunter.io/developer/1871876057) | [Daniel Catinella](https://appshunter.io/developer/1867908194) |

## What reviewers say

### Outline

[App page](https://appshunter.io/ios/app/outline-draw-lines-and-notes/id6758267623)

**In-app purchases:** none


### BlockLab

[App page](https://appshunter.io/ios/app/blocklab/id6760190990)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BlockLab Premium | $2.99 | one-time |


## Frequently asked questions

### Is Outline free?

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

### Is BlockLab free?

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

### Do Outline or BlockLab have ads?

Neither Outline nor BlockLab shows ads.

### Which is updated more often, Outline or BlockLab?

Outline ships an update weekly, and BlockLab every 2 weeks. Most recently, Outline was updated on September 14, 2026 and BlockLab on September 7, 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.*