A disclosure you should weigh while reading: I built one of the apps on this list (Precursor). So this roundup is not ranked, and mine is not first. Instead it is sorted by failure mode, because after two years of failed limits and a lot of forum reading, I am convinced there is no best screen time app, only a best match for how your particular habit misbehaves.
Prices and features below were checked against each developer's site on July 5, 2026.
Start here: Apple Screen Time (free, built in)
Before installing anything, try what your iPhone already does. App Limits set a daily cap per app or category, Downtime schedules quiet hours, and it costs nothing. For a lot of people that is enough.
Its two known weaknesses: every limit is daily (one groggy morning scroll can spend the whole budget by 9am), and the "Ignore Limit" button is always one tap away, which for many of us turns the limit into a suggestion within a week.
If you want free and flexible: ScreenZen
ScreenZen is donation-supported with no premium tier, and it runs on iOS, macOS, Windows, and Android. It adds a pause and a reflective prompt before a distracting app opens, plus daily open limits and cooldowns between opens. If your habit is opening apps too often, and especially if budget matters, this is the app I recommend to friends first. Its flexibility is also its softness: skipping past your own limits is easy on a low-willpower day.
If your problem is the unconscious open: one sec
one sec catches the tap you never decided to make. Open Instagram and a breathing exercise appears before the feed does. It is the most evidence-backed intervention in the category, with a peer-reviewed study in PNAS, and one sec reports 57% fewer app openings on average. The free tier covers one app; Pro is one of the cheapest upgrades around (regional pricing). What it does not do: limit anything after you breathe through the pause and continue. The session itself stays unlimited.
If you think in sessions: Opal
Opal is the most complete app here. Rules put blocking on schedules with time and open limits; Pro adds a strict difficulty with no unblocks, unlimited rules, and an Allow Only mode; it runs on iOS, Android, and Mac. If you want protected deep-work blocks and app-free evenings, this is the strongest tool for it. It is also the most expensive: Pro is $19.99 a month, $99.99 a year, or $399 lifetime, and its dashboards and scores are a lot if you wanted quiet.
If a game motivates you: Forest
Forest grows a tree while you stay off your phone; leave early and the tree dies. It is charming, and for pomodoro-style focus sessions it genuinely works for some people. It is a focus companion rather than an enforcement tool, and if streak pressure stresses you rather than motivates you, skip it.
If daily limits keep failing you: Precursor (mine)
Precursor is built around one mechanic no other app on this list has: hourly screen time limits. You give an app, or a group of apps, a small allowance, say 5 minutes of Instagram per hour. Spend it and the app is blocked behind a calm shield showing exactly when your minutes come back; the allowance resets at the top of every hour. The idea is that relief is never more than an hour away, so the limit survives the bad mornings that kill daily budgets.
Honest placement: Precursor is new (launching soon), runs on iPhone and iPad (iOS 17+), and does one thing. No scheduling, no scores. An Android version is in testing and coming soon; today it is iOS only. Background video and audio count toward the allowance because Apple's accounting includes them, and for now it will not offer allowances under about 5 minutes because iOS measures usage too coarsely there. The core is free; Precursor+ is $4.99 a month, $49.99 a year, or $99.99 once. No accounts; I cannot see which apps you limit.
At a glance
| App | Best for | Price | Platforms |
|---|---|---|---|
| Apple Screen Time | Trying limits at all | Free, built in | iPhone, iPad, Mac |
| ScreenZen | Free, frequent-open habits | Free (donations) | iOS, macOS, Windows, Android |
| one sec | Impulsive opens | Free (1 app); cheap Pro | iOS, Android |
| Opal | Scheduled focus sessions | $19.99/mo, $99.99/yr, $399 lifetime | iOS, Android, Mac |
| Forest | Gamified focus sprints | Paid app | iOS, Android |
| Precursor | Hourly allowances | Free core; $4.99/mo, $49.99/yr, $99.99 lifetime | iPhone and iPad, iOS 17+; Android coming soon |
FAQ
What is the best free screen time app?
ScreenZen. Donation-supported, no premium tier, and genuinely capable. Apple's built-in Screen Time is also free and worth trying first.
What is the best app to stop doomscrolling?
Match the tool to the habit. Reflexive opens: one sec. Long sessions you fall into: a budget-based tool like Precursor or Opal. Constant checking: ScreenZen's open limits.
Is there an app that limits Instagram per hour?
As of mid-2026, Precursor is the only app built around an hourly allowance, for example 5 minutes of Instagram per hour, resetting at the top of every hour. Others limit by day or by session.
Do screen time apps actually work?
The honest answer is partly. one sec has peer-reviewed evidence for reducing opens. Every tool fails if bypassing it is trivial, and every tool works better when its mechanic matches your failure mode. None of them replace wanting to change.
Get Precursor
Precursor is in beta. Join at precursorlabs.studio; beta testers keep Precursor+ for life. Precursor is free for iPhone and iPad (iOS 17 or later) and is launching soon, with an Android version on the way.
The core mechanic costs nothing. Precursor+ adds up to 8 app groups, 30-minute reset windows, and time limits up to 30 minutes per hour ($4.99 a month, $49.99 a year, or $99.99 once). No account, ever. iOS hands me anonymous tokens, so I cannot see which apps you choose to limit.