# Memomium vs Lucid

Memomium and Lucid are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Memomium ships an update every 2 days, Lucid every 3 days. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Memomium | Lucid |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free | — |
| Size | 2 MB | 2 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Heung Ju Ha](https://appshunter.io/developer/1738866383) | [Goo wong Kwon](https://appshunter.io/developer/1895637047) |

## 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


### Lucid

[App page](https://appshunter.io/ios/app/lucid-second-brain/id6777908024)

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

**In-app purchases:** none


## Frequently asked questions

### Is Memomium free?

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

### Is Lucid free?

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

### Do Memomium or Lucid have ads?

Neither Memomium nor Lucid shows ads.

### Which is updated more often, Memomium or Lucid?

Memomium ships an update every 2 days, and Lucid every 3 days. Most recently, Memomium was updated on September 11, 2026 and Lucid on September 17, 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.*