Tether vs Threestrand
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tether
This app helps you break free from excessive screen time by introducing friction to app usage. It allows you to block apps, websites, and categories with customizable difficulty levels for ending sessions, promoting stronger phone habits.
- App and website blocking
- Customizable session difficulty
- Focus modes (indefinite, countdown, Pomodoro)
- Scheduled sessions
- Reusable blocklists
- Strict Mode to prevent loopholes
- Live Activity and Dynamic Island integration
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You open your phone for "just a second" and lose 45 minutes to scrolling. Tether is an app blocker built to break that loop with real friction. Block apps, websites, and categories, then choose how hard it should be to stop: tap out, scan an NFC tag, scan a QR code, or get approval from someone you trust. Focus modes for real life - Indefinite sessions when you just need to stay locked in - Countdown sessions for deep work, study, and sprints - Pomodoro sessions with built-in breaks - Scheduled sessions for work hours, bedtimes, and daily routines Why Tether works - Create reusable blocklists for work, study, sleep, and weekends - Use Allow Mode to block everything except what you need - Turn on Strict Mode to prevent easy loopholes mid-session - Keep emergency overrides for genuine exceptions - See your session with Live Activity and Dynamic Island - Sync across devices so your rules stay consistent Tether is for people who want less screen time, stronger phone habits, and a system that's harder to cheat. Make distractions harder to reach, make quitting harder to justify, and make focus easier to keep. Terms of Use: https://www.tetherto.me/terms Privacy Policy: https://www.tetherto.me/privacy
Threestrand
This app helps you reduce screen time by partnering with someone you trust. Block distracting apps and only unlock them through a partner's approval, fostering real accountability and more time for people.
- Block distracting apps by default
- Partner-approved unlocks for blocked apps
- Shared 'Phones away' mode with trusted partners
- Family time mode to silence all apps
- Daily limits and schedules for boundaries
- Web browsing accountability
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Less phone. More people. Put phones away together, block what pulls at you every day, and when you need an app back, ask someone you trust instead of flipping a switch. THREE WAYS TO USE IT Phones away with people. Hold your phone to a Threestrand card on the table, or tap Phones away together, and everyone's apps go quiet until the timer ends. Calls still work. Family time. One tap puts the whole house down, and the phones come back on their own. A partner for every day. Pick the apps that stay open. Everything else waits, and your partner says yes when you need one. Your phone is designed to win. Threestrand changes the odds by giving you a person. Every focus app eventually loses to the same thing: a weak moment and an off switch. That isn't a you problem. Your phone was built by thousands of people engineering that exact moment, and nobody outlasts it alone. Threestrand pairs you with someone you trust, so you don't have to. Threestrand gives you accountability partners, one or several. You block the apps that pull you in, like social media, games, and endless browsers, and everything else stays open. When you genuinely need a blocked app, you don't just flip a switch. You send a request to your partner, and they answer. No secret overrides. No "just this once" at midnight. Real accountability, built into your phone. BUILT FOR THE PEOPLE WHO KNOW YOU BEST Threestrand works best between people already in each other's corner: couples reclaiming their evenings, friends keeping each other honest, anyone who's tired of fighting their phone alone. You're not outsourcing your willpower to an app. You're borrowing some from someone who loves you. NO WILLPOWER REQUIRED • Block by default: pick what stays, not what goes, so new distractions can't sneak in. • Partner-approved unlocks: temptation becomes a conversation, not a tap. • Web browsing that actually holds: block Safari behind the same accountability. • Daily limits and schedules: set boundaries and let Threestrand keep them. FAMILIES Teens 13 to 17 can use Threestrand inside a family with a parent. The teen joins from their own phone, and a parent confirms they are the parent or guardian and that the teen knows Threestrand is on the phone. The parent picks one of two ways Threestrand runs on the teen's phone, and can change it later. Family time only. The phone works as usual. During family time, notifications and apps go quiet for everyone in the family until it ends. The phone app always works. Threestrand for everything. The teen's phone runs Threestrand the way a partner's does. Blocked apps stay blocked until the teen asks a parent and the parent answers. Parents see what a partner sees and nothing more: no messages, no browsing, no list of apps used. When a teen leaves the family, their phone goes back to normal on its own. PRIVACY AND CONSENT FIRST Threestrand is not a monitoring or "spy" app. Pairing requires both people to opt in by exchanging a code. Either person can unpair at any time, and the other is always notified. Both partners see identical information; there is no one-way surveillance. Everything Threestrand does is disclosed in our Privacy Policy. YOU'RE NEVER LOCKED IN Threestrand is a commitment you choose, not a trap. • Need a blocked app? Ask. Your partner can say yes in seconds, for exactly as long as you both agree. • Done with a partnership? Unpair any time. The other person is simply notified. • Done with Threestrand? Delete it. Every block lifts immediately, and no one can stop you. The lock only works because you could walk away, and choose not to. GOING SOLO FOR NOW? You can start blocking immediately and add your partner when they're ready. A self-set PIN keeps you honest in the meantime. Threestrand. A cord of three strands is not quickly broken. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://anchorph.one/privacy/
Screenshots
Verdict
The clearest difference is update cadence: Threestrand at every 4 days against Tether's every 10 days. On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Tether sells 7 in-app purchases, starting at $5.49 per month and Threestrand sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Tether against 5.0 for Threestrand. Both are backed by a comparable volume of ratings — 8 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Tether ships an update every 10 days, Threestrand every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Tether | Threestrand |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) | 5.0 (10 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 | 10 — better |
| Update frequency | Every 10 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 44 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Undrift LLC | Anchor Digital Limited Liability Company |
Customer experience
Tether
Threestrand
In-app purchases
Tether
- Tether Pro Monthly Member$5.491 Month
- Tether Pro Free Trial3 Days trial$6.991 Month
- Tether Pro Monthly$6.991 Month
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- Tether Pro Yearly Member$24.491 Year
- Tether Pro Yearly$34.991 Year
- Tether Pro Lifetime Member$79.99
- Tether Pro Lifetime$99.99
Threestrand
- One person$4.991 Month
- Household$9.991 Month









