# Lumin vs ZensNote

The clearest difference is update cadence: Lumin at every 6 days against ZensNote's every 2 months. ZensNote's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Lumin sells 2 in-app purchases, starting at $7.99 per month and ZensNote sells 8 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lumin ships an update every 6 days, ZensNote every 2 months. Both last shipped on September 13, 2026.

## The numbers

| Metric | Lumin | ZensNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 months |
| Size | 15 MB | 86 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Saad Nasser](https://appshunter.io/developer/1785514743) | [Study Note AI](https://appshunter.io/developer/1874959157) |

## What reviewers say

### Lumin

[App page](https://appshunter.io/ios/app/lumin-ai-study-and-pdf-chat/id6752791421)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumin Monthly Pro | $7.99 | per month |
| Lumin Yearly Pro | $49.99 | per year |


### ZensNote

[App page](https://appshunter.io/ios/app/zensnote-ai-study-note-taker/id6758782007)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Learning Tools: Weekly | $4.99 | per 7 days |
| Smart Notebook: Monthly | $9.99 | per month |
| Knowledge Suite: Annual | $59.99 | per year |
| ZensNote Premium — Yearly | $79.99 | per year |
| 250 Study Credits | $5.99 | one-time |
| 1,000 Study Credits | $19.99 | one-time |
| 3,000 Study Credits | $49.99 | one-time |
| 7,000 Study Credits | $99.99 | one-time |


## Frequently asked questions

### Is Lumin free?

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

### Is ZensNote free?

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

### Do Lumin or ZensNote have ads?

Neither Lumin nor ZensNote shows ads.

### Which is updated more often, Lumin or ZensNote?

Lumin ships an update every 6 days, and ZensNote every 2 months. Most recently, Lumin was updated on September 13, 2026 and ZensNote on September 13, 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.*