Lucid vs Iris
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Lucid
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Ever had a great idea, written it down, and never found it again? Notes apps just pile up. All-in-one tools get overwhelming. Lucid sits in between. β Catch the 3 seconds it lives Tap the home screen widget and start typing. Don't pick a type or a place β just get it down. β Organize in 5 minutes a day Swipe through your thoughts and answer one thing: "Where does this go?" No jargon β Projects, Areas, Resources, Archive. β Today, only what matters Open the app and today's tasks come first. Each one done is a small win. β Your second brain, in your hand No account, no login. Every thought stays safe on your iPhone. Stop losing your best ideas. Let Lucid remember them for you.
Iris
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Iris brings your Muse conversations to Apple Watch. Sign in once on your iPhone with the code Muse sends you, and Iris hands the sign-in to your Watch. From then on, everything happens on your wrist: read your conversations, pick up any chat where you left off, and reply by typing or dictating. β’ Your Muse conversations, on Apple Watch β’ Reply by typing or dictating β’ Sign in once on iPhone; the iPhone keeps nothing once your Watch has it β’ No ads, no tracking Iris needs a Muse account. Iris is an independent app and isn't made by or affiliated with Meta.
Screenshots
Verdict
The clearest difference is iOS requirement: Lucid at 17.0 against Iris's 26.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Lucid | Iris |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | β |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, Apple Watch β better |
| Requires iOS | 17.0 β better | 26.0 |
| Further details β not scored | ||
| Size | 2 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Goo wong Kwon | Kpaw, LLC |
In-app purchases
Lucid
No in-app purchases
Iris
No in-app purchases





