moss vs Mudita Kompakt
A $399 E Ink phone with no app store, meant to replace your smartphone.
Checked 11 November 2026 against Mudita's own pages. We make moss, so we have linked every source below.
What Mudita Kompakt is
The Mudita Kompakt is a minimalist phone with a 4.3 inch E Ink display and Mudita's own operating system. It costs $399. It has no app store, so the distracting apps are absent, not blocked. Android apps can be sideloaded through the Mudita Center desktop app, and Mudita warns they may not run well on E Ink. It replaces your phone, which for an iPhone owner means giving up the iPhone.
What moss is
moss is an iPhone app that comes with a small physical stone. You choose the apps that distract you, tap your phone on the stone, and those apps stay locked until you tap the stone again. People who live together can link their phones to share schedules and put their phones down at the same time, while each person keeps control of their own phone. Locking is free in the app, the stone is a one-time purchase, and the household features are a paid add-on.
Side by side
| Feature | moss | Mudita Kompakt |
|---|---|---|
| Price | US$49 stone, free app | $399 |
| Subscription | None to lock your own phone. Household features are a paid add-on | None mentioned |
| Works on | iPhone only, iOS 17 or later | It is its own phone. Carrier support not verified |
| How you lock | Tap the stone, or start from the app, a Shortcut, the lock screen or the Action Button. Schedules by day of week | No app store, so the apps are not there |
| How you unlock | Tap the stone, in the app | Sideload apps from a computer with Mudita Center |
| If you need back in | 3 emergency unlocks a month, refilled automatically | Not needed: calls and texts are what it does |
| Locking together as a household | Yes, as a paid add-on. Shared schedules, sessions others join in one tap, a view of whose phone is down, a streak. Nobody controls anyone else | One per person |
| Whose key opens your phone | Only your household's own stone, card and sprigs unlock your phones | Nothing is locked |
Where Mudita Kompakt is better
- The distraction is absent, so there is nothing to unlock on a weak evening.
- An E Ink screen in place of a bright one.
- Adding apps takes a computer and a desktop app, so it cannot be undone from the phone in a weak moment.
Where moss is better
- You keep your iPhone and everything on it.
- It costs much less: moss is US$49 against $399.
- You choose the hours. Outside them the phone is a normal phone.
Who should pick which
Pick Mudita Kompakt if
You are ready to give up a smartphone altogether.
Pick moss if
You want to keep your iPhone and lock parts of it for parts of the day.
Sources
Spotted something out of date? Tell us and we will fix it.
moss is a stone that locks the apps you choose.
Tap to lock, tap to unlock. One price, and locking needs no subscription.
