Free should mean usable
without a recurring bill.

Best built-in option: Apple Screen Time. Best feature-rich free option: ScreenZen, based on its current donation-supported App Store description. Best free one-app pause: one sec.

“Free” can mean four different things: completely free, free with optional donations, usable free with a hard limit, or merely free to download before a subscription screen. This guide names the model explicitly. Prices and plan boundaries can change, so confirm the live App Store page and in-app purchase screen before choosing.

This is not a universal ranking. The best free tool is the one whose free boundary still covers your actual problem after a week.

Screen Time is already on the iPhone. It offers daily App Limits, scheduled Downtime, Always Allowed apps, Content & Privacy Restrictions, reports, and family controls. There is no separate app subscription.

It is the right first test if you want a 30-minute social allowance or bedtime schedule. Turn on Block at End of Limit or Block at Downtime and protect settings with a separate Screen Time passcode. For a child, use Family Sharing rather than setting controls only on the child’s device.

The weakness for adult self-control is ownership: if you know the passcode and control its Apple Account recovery, you can change the rule. Screen Time is free and broad, but not automatically strict.

ScreenZen’s current US App Store listing calls it a free, donation-supported screen-time blocker. It lists delays before opening, short-use interruptions, app goals, blocking after a limit, schedules by day and time, custom messages, and stricter blocks based on time, opens, or Screen Time.

That range is unusually strong for a no-subscription listing. It suits someone willing to tune rules and experiment with several kinds of friction. The tradeoff is complexity: a large rule set can require more setup than a single all-day rule.

Read the live ScreenZen App Store listing before installing; donation options and features can change.

one sec is built around interrupting an automatic open with a pause and optional follow-up intervention. Its current listing says the free version can be used with one app; protecting additional apps requires Pro.

That makes the free plan useful when one app clearly dominates the habit. It is less suitable if Instagram, TikTok, Reddit, YouTube, and a browser all substitute for one another. It also adds a decision point rather than removing access completely.

Choose it when a moment of awareness is enough to change your action. Choose a stricter blocker when you routinely wait through the pause and continue.

Jomo and Opal are established freemium choices with focus and blocking features, but “Free · In-App Purchases” does not tell you that every advertised feature is available without payment. Jomo’s listing currently advertises Jomo Plus subscriptions and a lifetime purchase. Opal also offers paid upgrades.

Install one only after defining the requirement: number of protected apps, recurring schedules, strict mode, breaks, analytics, and device coverage. Complete onboarding, then inspect the upgrade screen before granting yourself confidence that the free plan solves the job.

A free trial is not a free blocker without a subscription. If a card or auto-renewing plan is required, set a reminder before the renewal date or choose an option whose free boundary is explicit.

Day 1: choose only the two or three apps that create the most unwanted time. Days 2–6: note every bypass, substitute app, missed essential task, and setting you changed. Day 7: decide whether the blocker changed behavior or merely added taps.

Check five things before paying: whether blocks start automatically, how emergency access works, whether settings can be locked, how many apps the free tier covers, and whether deleting or disabling the tool is visible or restricted.

Fella is not included as a free recommendation. It is a paid product for a narrower need: selected iPhone apps remain blocked all day, with one emergency 5-minute unlock and automatic relocking. It is not a schedule builder, analytics suite, or free-plan substitute.