Honest comparison
Skerrick vs Opal
Opal is the most complete product in this category. Skerrick is not trying to be, and the reason is the mechanic rather than the feature list.
Written from Opal’s own public pages, and accurate to the best of our knowledge at the time of writing. Apps change, and we have an obvious interest here, so check their site before deciding. If anything below is wrong or out of date we want to know and we will correct it.
The actual difference
One blocks the app. One rations it.
Opal’s model is the session. You decide in advance that for the next ninety minutes certain apps are off limits, and during that window opening one gets you a block screen. It is a good model, it is the model most of this category uses, and it has a known shape to its failure: the decision is made before you want the app, and unmade at the moment you want it.
Skerrick never blocks the app. Instagram opens, your messages are there, your profile is there. What is metered is your time in it, messages included, and the interruption arrives three minutes in rather than at the moment you tapped the icon. You are not being asked whether you would like to stop. You are being told.
That difference matters most for the apps you cannot give up. A session-based blocker gives you all of Instagram or none of it for hours at a time, and the people who need this most are exactly the people who will choose “all of it” by Thursday. A ration gives you a few minutes of it, as often as the refill allows. That is enough to answer someone and not enough to lose an evening.
Where each one fits
Opal, if you want breadth. Multiple apps, websites, a Mac, a schedule that runs your working day, and a settings screen you can spend an afternoon in.
Skerrick, if the problem is specifically the scroll inside an app you need to keep, and if previous attempts have died because blocking the whole app cost you something you were not willing to lose.
These are not mutually exclusive positions, and plenty of people will find Opal is the right answer. The comparison is here because pretending otherwise would be insulting.
| Aspect | Opal | Skerrick |
|---|---|---|
| Where it interrupts | At the door. A blocked app is blocked when you try to open it. | Mid-scroll, three minutes after you open the app. |
| What it takes away | The app, for the length of a session or schedule. | Nothing is blocked. The whole app is rationed, a few minutes a visit, messages included. |
| If you want more time | Sessions can be ended or adjusted from the app. | Sixty more seconds on request, after a wait that grows with each use that day. |
| Breadth | Wide. Sessions, schedules, focus scores, groups and a desktop app. | Narrow on purpose. One mechanic, applied to the apps you pick. |
| Desktop | Yes, there is a Mac app. | No. Phone only, because that is where feeds are. |
| Free tier | There is one. Check their pricing page for what it currently covers. | One feed of your choice, forever, with the full mechanic. |
The escalation point
Friction that stays the same stops working.
A published field experiment found a short delay with an explicit dismiss option led users to abandon about one in three app opens. A follow-up across 1,039 real users over roughly thirteen weeks found the effect fades as people habituate.
That finding is the reason Skerrick’s wait grows through the day rather than sitting at a fixed number. Five seconds, then twenty, then forty-five, then ninety, reset each midnight. The mechanic in full.
Waitlist
Skerrick has not shipped.
If you need something today, Opal is available today. If you want to know when this is, leave an email.