In short
Screen time apps for iPhone come in four shapes. Trackers tell you where the time went. Limits cap a daily budget. Delays put a pause before an app opens. Blockers stop apps opening during hours you schedule. Work out which one matches your problem before you compare individual apps, because a tracker cannot fix a blocking problem no matter how good it is.
A note on what this guide is: Quietly is one of the apps in the last category, so treat this as a map of the territory written by someone who lives in part of it. The descriptions below stay at the level of approach rather than feature lists, partly to be fair and partly because feature lists in this category go out of date within months. Check the App Store listing before you buy anything.
Shape 1: trackers
Trackers measure what you did and show it back to you. Apple's own Screen Time report is the most complete one on iPhone, and it is free and already installed. Third-party trackers mostly add nicer presentation and cross-device summaries.
Right for you if: you genuinely do not know where the hours go. You cannot fix a problem you have not located, and three days of honest data will tell you which three apps matter.
Wrong for you if: you already know. If you can name the app and the hour without checking, more measurement is procrastination with a dashboard. This is the most common mistake in the category, because looking at a chart feels like taking action and costs nothing.
Shape 2: daily limits
Limits give an app a time budget and cut you off when it runs out. Apple's App Limits do this natively, and several third-party apps do a more configurable version.
Right for you if: your problem is total volume on one or two specific apps, spread through the day, and you genuinely would be fine with 20 minutes of it.
Wrong for you if: your problem is when rather than how much. A budget cannot tell 20 minutes at lunch from 20 minutes at midnight, and the reset at 00:00 hands you a fresh allowance at the exact hour you least want one. Limits also live or die on whether the override is protected. An unlocked limit is a notification with extra steps.
Shape 3: delays and interruptions
Delay apps do not block anything. They put something between the tap and the app: a breath, a countdown, a question, a few seconds of nothing. Then the app opens. The best-known example of this approach is one sec, which built its whole product around the pause.
The idea is well founded. An automatic open is a sequence of movements rather than a decision, and interrupting the sequence forces a fresh, deliberate action. A good share of interrupted opens simply end there, because there was no reason behind them.
Right for you if: the problem is frequency rather than duration. Forty short opens a day, most of which you cannot remember making.
Wrong for you if: the problem is the 90-minute session. A delay you can always get past does not shorten anything once you are in, and if you are willing to sit through it every time then it is friction without a limit.
Shape 4: blockers
Blockers stop the app opening at all during hours you schedule. This is the category with the most apps in it and the widest spread of philosophies. Freedom takes a cross-device approach with sessions across phone and computer. Opal leans on scores and gamification. ScreenZen is free and donation-funded. Forest attaches focus time to growing a tree. They differ enormously in tone, which matters more than it sounds.
The design question every blocker has to answer is what happens when you want in anyway, and the answers split into three.
- No way through. Strongest in the moment, shortest lived. It gets deleted on the first evening it is genuinely wrong, and after that you have nothing at all.
- Unlimited way through. An override with no cost becomes part of the habit within a fortnight. This is the Ignore Limit problem, and it is why so many people say Apple's Screen Time stopped working for them.
- A limited way through. A finite allowance for getting in, which keeps the block credible without making it a trap.
Right for you if: you lose specific, predictable hours. Bedtime, working blocks, the commute.
Wrong for you if: your use is genuinely spread evenly across the day with no pattern, in which case there are no hours to protect and a limit fits better.
Worth knowing
Every third-party app in this list runs on Apple's Screen Time framework, and every one of them asks for the same permission. None of them can see which apps you selected: Apple hands over opaque tokens rather than names, so a blocker enforces a selection it cannot read. That is why they all ask for permission before doing anything, and why none of them can show you a list of your blocked apps by name.
How to choose in two questions
Do you know which apps and which hours? If no, use a tracker for a week first, and do not pay for one. Apple's report is free and sufficient.
Is the problem when, or how much? If when, you want a blocker with schedules. If how much, you want limits. If the problem is how often, and the sessions themselves are short, you want a delay.
One more test that catches most bad purchases: imagine the app working perfectly for a month. Now imagine the one evening it is completely wrong, when something real is happening and you need the app it is blocking. What does the app do that evening? If the answer is "nothing, I would have to delete it", that is what will happen, and probably in week two.
Where Quietly sits
Quietly is a blocker with a delay built into it. Named routines with their own apps, hours and strictness, a friction step before a blocked app opens, and a limited number of timed passes rather than an all-day override.
The passes are the deliberate part. A pass opens one blocked app for 1, 5 or 15 minutes and then the block returns by itself. You get a set number each day, and stronger routines give fewer, so bedtime can carry one or none. It answers the evening-it-is-wrong test with something other than uninstalling.
What Quietly does not do: it does not report your usage, so if what you need is data, Apple's Screen Time is better and free. It does not manage anyone else's device. It is iPhone only. And it is new, with very few ratings so far, so if you want something with a long track record then one of the apps above is the honest answer.
Quietly is on the App Store
Pick your apps, set one routine, and see how many opens were never really decisions.
Is free good enough?
Often, yes. Apple's built-in Screen Time covers reporting, one Downtime window and per-app limits, at no cost, with better system access than anything third-party can have. Start there and stay there if it holds.
Paying is worth it when you need something specific it does not do: several separate routines instead of one window, a step before the app opens, or an override that costs something. If you cannot name which of those you need, you are buying a feeling rather than a feature.