# Memomium vs Structured Outliner

The clearest difference is in-app purchases: Memomium at none against Structured Outliner's 1. Memomium also leads on ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Structured Outliner sells 1 one-off in-app purchase. Memomium asks for nothing beyond the download.

Memomium ships an update every 2 days, Structured Outliner every 9 days. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Memomium | Structured Outliner |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 9 days |
| Monetization | Free | — |
| Size | 2 MB | 6 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Heung Ju Ha](https://appshunter.io/developer/1738866383) | [Felipe Carraro](https://appshunter.io/developer/1887606432) |

## What reviewers say

### Memomium

[App page](https://appshunter.io/ios/app/memomium/id6523430124)

A streamlined digital notebook focused on simplicity, security, and style. It offers a distraction-free writing environment with end-to-end encryption and customizable day/night modes. Notes can be synced across Apple devices.

**Highlights:** Minimalist design, End-to-end encryption, Day and night modes, iCloud sync, Distraction-free writing

**Features:** macOS Compatibility

**In-app purchases:** none


### Structured Outliner

[App page](https://appshunter.io/ios/app/structured-outliner/id6761066639)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $7.99 | one-time |


## Frequently asked questions

### Is Memomium free?

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

### Is Structured Outliner free?

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

### Do Memomium or Structured Outliner have ads?

Structured Outliner shows ads; Memomium does not.

### Which is updated more often, Memomium or Structured Outliner?

Memomium ships an update every 2 days, and Structured Outliner every 9 days. Most recently, Memomium was updated on October 4, 2026 and Structured Outliner on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*