The time tracker that also locks your distractions.
Most time trackers can't block apps. Most app blockers don't record where your time goes. Calume is both in one iPhone app — and the two halves work together.
Why one app instead of two
Run a tracker and a blocker separately and you manage two systems: start the timer here, arm the blocker there, keep the sessions lined up by hand, and hope you remember both at the exact moment your discipline is thinnest. In practice, one of them falls off within a week — usually the blocker, because it's the one that says no to you.
In Calume there is one action: start the timer. The block engages because the session started, and releases because it ended. Nothing to remember, nothing to arm, nothing to sync.
| Tracker only | Blocker only | Calume | |
|---|---|---|---|
| Records where your hours go | Yes | No | Yes |
| Locks distracting apps | No | Yes | Yes |
| Block tied to your session | — | No — separate schedule | Yes — starts and ends with the timer |
| Blocking until a goal is met | No | Rarely | Yes — with live progress |
| The blocked time appears in reports | — | No | Yes |
Three ways the lock engages
While a timer runs
Pick the apps that break your focus, once per activity. Starting a timer locks them; stopping it sets them free.
During booked time
Book focus time on the calendar and the apps lock when the block begins — no timer needed.
Until your goal is met
Apps stay locked until today's goal is reached — say, two hours of study. A progress ring shows how close you are.
Firm, not cruel
- Real breaks. Pause a block for 1–30 minutes; the shield returns by itself when the break ends.
- Your hours. Block all day, or only during chosen hours — the evening scroll from 6 p.m., while lunch stays free.
- Private by design. Blocking runs on Apple's Screen Time system. You pick apps, categories, or websites with the native picker, and the selection stays on your device — Calume never sees which apps you use.
And the tracking side is a full tracker
This isn't a blocker with a stopwatch bolted on. Calume records your whole day — open stopwatch or countdown, a 24-hour calendar timeline, tasks, goals, reports with a weekly rhythm heatmap, and Apple Health import for sleep and workouts. The same session that locks Instagram is being measured, so every week you can read both sides: focus hours up, scroll finally on the record.
For the full walkthrough with lock-screen details, read how app blocking works in Calume.