# Margin vs Daypen

The clearest difference is update cadence: Daypen at every 3 days against Margin's every 2 months. Daypen also leads on device support (4 vs 2) and iOS requirement (15.1 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Margin sells 4 in-app purchases, starting at $2.99 per 7 days and Daypen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Margin ships an update every 2 months, Daypen every 3 days. The most recent releases landed on October 19, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Margin | Daypen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 22 MB | 70 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Diego Santos](https://appshunter.io/developer/981971225) | [Ali Can](https://appshunter.io/developer/6789727434) |

## What reviewers say

### Margin

[App page](https://appshunter.io/ios/app/margin-ai-summarize-articles/id6748705626)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $2.99 | per 7 days |
| Pro Plan | $5.99 | per 7 days |
| Basic Yearly | $39.99 | per year |
| Pro Yearly | $79.99 | per year |


### Daypen

[App page](https://appshunter.io/ios/app/daypen-ai-notes-and-planner/id6809175941)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Daypen Pro | $4.99 | per month |
| Daypen Pro Year | $29.99 | per year |
| Daypen Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Margin free?

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

### Is Daypen free?

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

### Do Margin or Daypen have ads?

Neither Margin nor Daypen shows ads.

### Which is updated more often, Margin or Daypen?

Margin ships an update every 2 months, and Daypen every 3 days. Most recently, Margin was updated on October 19, 2026 and Daypen on October 26, 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.*