A free app blocker for iPhone is an app that stops chosen apps, such as Instagram or TikTok, from opening during the hours you pick, without charging a subscription for the blocking itself. For a free, on-device blocker that runs on a schedule, AppBlocker is a good place to start, and if you would rather have a short pause before an app opens than a hard block, ScreenZen is the best free alternative.
Apple’s built-in Screen Time is also free and already on your phone. The rest of this page compares all six options side by side, then covers each one in a few sentences so you can pick the one that matches how you actually lose time.
Free app blockers compared
| App | Free tier | What’s free vs paid | How blocking works | Best for |
|---|---|---|---|---|
| AppBlocker | Yes | Blocking is free with no subscription and no paywall. Supported by ads. | Scheduled blocks, Doomscroll Protection that stops you after 15 minutes in the apps you pick as time sinks, and a manual block you turn off deliberately. Screen-time stats show where the time went. Uses Apple’s Screen Time controls, runs on device. | Scheduled or manual blocking with no sign-up |
| Apple Screen Time (built in) | Yes | Completely free, part of iOS. | Daily App Limits and scheduled Downtime. Limits can be ignored unless a Screen Time passcode is set. | Anyone who wants to start without installing anything |
| Opal | Yes | Free tier includes app blocking with one rule. Opal Pro (unlimited rules, Hard Mode, score history) is $99.99/year or $19.99/month. | Scheduled blocks and on-demand focus sessions. | A strict, polished wall if you’re willing to pay |
| One Sec | Yes | Free for one app. Pro (unlimited apps, more intervention types) is about $20/year in the US. | A forced pause and breath before a chosen app opens. | The gentlest possible nudge |
| Freedom | Yes | Free plan has custom blocklists and cross-device sync, but no scheduling or Locked Mode. Premium is $39.99/year. | Blocks apps and sites across iPhone, Mac, Windows and browsers at the same time. | Distraction that follows you from phone to laptop |
| ScreenZen | Yes | Completely free, with no premium tier or in-app purchases. Supported by optional donations. | A short pause and prompt before opening, plus optional daily open limits. | Breaking the reflexive open |
Each app in a few sentences
AppBlocker
Full disclosure: I make this one. AppBlocker lets you choose the apps that pull you in, set the hours they should stay shut, and shows a block screen instead of the feed when you reach for one. Its Doomscroll Protection lets you pick the apps that are time sinks and stops you after 15 minutes of use to break the dopamine cycle. For the apps you’re truly done with, the manual block is a firm wall you set yourself and turn off deliberately, not mid-craving, and its screen-time stats show you where the time actually went. It uses Apple’s own Screen Time controls, runs entirely on your iPhone with no sign-up and no server, and is free with no subscription because it is supported by ads. This describes the iOS app. The Android app's data practices are described in its Google Play listing. It is a phone app for iPhone and Android, so if you want blocking across a laptop too, Freedom is the better fit.
Apple Screen Time (built in)
Screen Time is built into iOS and free. App Limits give apps or categories a daily time allowance, and Downtime keeps everything except the apps you allow off limits on a schedule. The catch is that when a limit hits you can tap to ignore it unless a Screen Time passcode is set, which is why it works best when someone else holds the passcode.
Opal
Opal is the most polished app in this list, with scheduled blocks, on-demand focus sessions and gamified streaks for staying off. Its free tier includes app blocking with one rule, and Opal Pro adds unlimited rules, Hard Mode and score history for $99.99 per year or $19.99 per month. It is a strong pick if you want a well-designed, strict wall and the price works for you. If it doesn’t, see these free and cheaper Opal alternatives.
One Sec
One Sec makes you take a breath before a distracting app opens, which is enough to interrupt the automatic reach for a lot of people. It is free for one app, and One Sec Pro adds unlimited apps and more intervention types for about $20 per year in the US. It is a good first step if you are not sure you need a hard block yet, though some people learn to tap straight through the pause.
Freedom
Freedom’s strength is blocking across iPhone, Mac, Windows and browsers at the same time, which closes the “I’ll just use my laptop” loophole. The free plan includes custom blocklists and cross-device sync. Scheduling and Locked Mode, which makes “just this once” genuinely hard, need Premium at $39.99 per year. It suits people whose distraction is spread across devices more than people who only need a phone blocker.
ScreenZen
ScreenZen puts a short pause and a prompt between you and the app, with optional limits on how many times a day you can open it. It is completely free, with no premium tier or in-app purchases, supported by optional donations, and one of the best tools for the reflexive open, when you are in TikTok before you decided to be. It does less for long sessions once you are already inside the app.
How to choose
- Hard block or a pause? If a wall is what stops you, pick a blocker like AppBlocker, Screen Time or Opal. If a moment of friction is enough, ScreenZen or One Sec is lighter.
- Phone only or every device? If the problem moves to your laptop when your phone is blocked, a cross-device tool like Freedom fits, and its free plan already syncs blocklists across devices. If it’s only your phone, you don’t need one.
- Check what free actually covers. Some apps are free to download but put the blocking you want behind a subscription. Look for what the free tier includes before you set it up.
- Can you get around it too easily? Any blocker you can switch off in two taps mid-craving won’t hold. Set blocks in advance, and for Screen Time, let someone else set the passcode.
Frequently asked questions
Is there a completely free app blocker for iPhone?
Yes. Apple’s Screen Time is built into every iPhone and costs nothing, and AppBlocker is a free app blocker with no subscription and no paywall on blocking, supported by ads. ScreenZen is also completely free, with no premium tier or in-app purchases.
Does Screen Time work as an app blocker?
Partly. Screen Time’s App Limits and Downtime can block apps after a daily allowance or during set hours, but you can choose to ignore a limit unless a Screen Time passcode is set. It works best when someone else holds the passcode.
Can I block Instagram and TikTok on iPhone for free?
Yes. You can set an App Limit for Instagram and TikTok in the Screen Time section of Settings, or pick both apps in AppBlocker and either set the hours they should stay shut or turn on its manual block. Both options are free.
Do app blockers need a subscription?
Not always. Some popular blockers charge for their full features, but Apple’s Screen Time is free, AppBlocker has no subscription and is supported by ads, and ScreenZen is completely free. Check what a paid tier adds before you pay.
What’s the difference between an app blocker and Screen Time?
Screen Time is Apple’s built-in tool for tracking usage and setting limits, and its limits can be ignored with a tap unless a passcode is set. An app blocker like AppBlocker is a separate app that uses Apple’s Screen Time controls to keep chosen apps shut on a schedule you set in advance, with Doomscroll Protection, a manual block and screen-time stats on top.
Block the apps that eat your day
Pick your apps, set the hours, and get a block screen instead of a feed. Free, no subscription, on-device, iPhone and Android.
Get AppBlocker, free Get it on Google Play