Moment is one of the oldest apps in this category — its screen-time tracking predates most competitors, going all the way back to 2013, when almost nobody else was thinking about the problem at all. Today, under current operator Meaningful Things, it centres on "Strict Mode" blockers: scheduled or on-demand app locks with a deliberately firm no-early-exit design. It's an Apple-only product: iPhone, iPad, Mac and Apple Watch, with no Android version currently offered, which is a real gap for anyone not fully committed to that one ecosystem. That over-a-decade history also means Moment has weathered several waves of iOS platform changes and app-store policy shifts, adapting its approach each time Apple altered what third-party apps are actually permitted to do with screen-time data.
What Moment actually does
Moment's Strict Mode blocks chosen apps either on a weekly schedule or on demand, with a minimum 15-minute session and, per the app's own design, deliberately no quick way to disable it early once it's running, so a moment of second-guessing partway through doesn't actually get you out of it. Blocks are visible via Lock Screen Live Activities, keeping the active restriction genuinely visible rather than something you can forget about, and the app ties in mood-tracking to let you see how your screen time correlates with how you actually feel, which turns raw usage numbers into something closer to a real diary. Moment also offers a "Family" plan that extends Strict Mode scheduling across multiple people's devices under one account, which is a genuinely useful option for households trying to build a shared, not just individual, habit around phone use.
Where Moment is honestly the better pick
For Apple users specifically, Moment's Strict Mode is a genuinely firm commitment device — deliberately built without an easy early-exit, which is a stronger and simpler guarantee than a quiz question offers, since there's no path through it at all once it's engaged rather than a path that merely costs you something. Its mood-tracking tie-in is also a thoughtful, distinctive addition, giving you a way to actually see the relationship between your screen time and how you feel, not just how much time you used, which can surface patterns a raw usage number alone would never reveal. The mood-tracking feature in particular has a real research pedigree behind it — Moment's founder has spoken publicly about building the feature specifically to surface the kind of correlation between usage and mood that raw screen-time totals alone tend to hide.
| Feature | Moment | Mr. Grummel |
|---|---|---|
| Platforms | iPhone, iPad, Mac, Apple Watch, Vision Pro — no Android | iOS & Android (in development) |
| Core mechanism | Scheduled or on-demand "Strict Mode" blocks with a minimum session length and no quick early exit | Answer a quiz question from the app's curriculum to unlock |
| Self-bypassable during Strict Mode? | Marketed as no quick disable option; ultimate backstops are Apple's own system-level controls rather than anything specific to Moment | Not yet released — can't be assessed |
| Physical hardware required? | No | No |
| Price | Freemium; a paid "Moment Pro" tier unlocks unlimited blockers | Not yet announced — join the waiting list |
The one mechanical difference that actually matters
Moment's Strict Mode and Mr. Grummel's quiz question are both trying to remove the easy exit from a moment of weakness, but they take different routes: Moment removes the button entirely for a fixed period, leaving genuinely nothing to press, while Mr. Grummel leaves a route through, gated by three questions you have to actually get right rather than simply wait out. The bigger practical difference, though, is platform: Moment's whole design depends on Apple's ecosystem and doesn't reach Android users at all, while Mr. Grummel is being built for both from the outset, which matters a great deal to anyone whose household, or whose own phone, isn't entirely Apple. It's also worth noting that Moment's entirely Apple-native approach means it inherits both the strengths and the constraints of that platform — genuinely deep integration, but also complete dependence on whatever Apple continues to allow third-party apps to do going forward.
Who should pick which
If you're fully inside Apple's ecosystem and want a session that genuinely can't be cut short once it starts, Moment's Strict Mode is a proven, firm tool for exactly that, refined over more than a decade of being one of the category's oldest names. If you're on Android, or split across both platforms, that's a gap Moment doesn't cover and Mr. Grummel is specifically being built to fill, without asking you to switch phones just to get a comparable level of commitment. It's also worth factoring in that an Android user genuinely has no path to Moment at all today, no workaround or partial version, which makes the platform question closer to a hard filter than a mere preference for anyone outside Apple's ecosystem. It's also worth remembering that Moment's over-a-decade history means its Strict Mode has been battle-tested by a large user base for far longer than any newer entrant in this category, including Mr. Grummel, has had the chance to be.