# Diagrams Notepad 3 vs Zenith

The clearest difference is update cadence: Zenith at weekly against Diagrams Notepad 3's monthly. Diagrams Notepad 3's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Diagrams Notepad 3 sells 1 one-off in-app purchase and Zenith sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Diagrams Notepad 3 ships an update monthly, Zenith weekly. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Diagrams Notepad 3 | Zenith |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (52 ratings)](https://appshunter.io/ios/app/diagrams-notepad-3/id1387425355/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 39.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 53 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [sunata UG (haftungsbeschraenkt)](https://appshunter.io/developer/1387425354) | [Shawn Frank](https://appshunter.io/developer/1786845394) |

## What reviewers say

### Diagrams Notepad 3

[App page](https://appshunter.io/ios/app/diagrams-notepad-3/id1387425355)

Create and sync diagrams, flowcharts, and mind maps across iPhone, iPad, and Mac. Supports Apple Pencil for drawing and offers collaboration features. Export in various formats.

**Highlights:** Cross-device sync via iCloud, Vector-based shapes and connectors, Apple Pencil support, Diagram sharing and collaboration, Export to PDF, PNG, JPEG, Unlimited diagram size

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited number of diagrams | $22.99 | one-time |


### Zenith

[App page](https://appshunter.io/ios/app/zenith-reduce-screen-time/id6739749729)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is Diagrams Notepad 3 free?

Diagrams Notepad 3 is free to download, with in-app purchases available.

### Is Zenith free?

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

### Do Diagrams Notepad 3 or Zenith have ads?

Neither Diagrams Notepad 3 nor Zenith shows ads.

### Which is updated more often, Diagrams Notepad 3 or Zenith?

Diagrams Notepad 3 ships an update monthly, and Zenith weekly. Most recently, Diagrams Notepad 3 was updated on October 22, 2026 and Zenith on October 25, 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.*