# Missnote vs LUMEN

The clearest difference is in-app purchases: LUMEN at none against Missnote's 4. Missnote's advantage is iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Missnote sells 4 in-app purchases, starting at $3.99 per month. LUMEN asks for nothing beyond the download.

Missnote ships an update fortnightly, LUMEN every 9 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Missnote | LUMEN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 74 MB | 28 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mooncode](https://appshunter.io/developer/1742583074) | [Jaewhan Namkoong](https://appshunter.io/developer/1872906976) |

## What reviewers say

### Missnote

[App page](https://appshunter.io/ios/app/missnote-mistake-journal/id6755079356)

This app helps students and test-takers transform incorrect answers into learning opportunities. Save missed questions with photos or text, organize them with tags and custom notebooks, and receive AI-powered review suggestions. It facilitates a smarter study routine by prioritizing what needs reviewing.

**Highlights:** Save questions via photo or text, Organize with tags and custom notebooks, AI-powered review suggestions, Spaced repetition review timing, Review reminders, Cross-device syncing, Create and print PDFs

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro - 1 month | $3.99 | per month |
| Sync Plus - 1 month | $3.99 | per month |
| pro - 1 year | $32.99 | per year |
| Pro - lifetime | $5.99 | one-time |


### LUMEN

[App page](https://appshunter.io/ios/app/lumen/id6758431652)

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

**In-app purchases:** none


## Frequently asked questions

### Is Missnote free?

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

### Is LUMEN free?

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

### Do Missnote or LUMEN have ads?

Neither Missnote nor LUMEN shows ads.

### Which is updated more often, Missnote or LUMEN?

Missnote ships an update fortnightly, and LUMEN every 9 days. Most recently, Missnote was updated on October 24, 2026 and LUMEN 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.*