DoomSunder: Block Apps, Focus

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Everyone
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Everyone
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About this app

DoomSunder is an app blocker for people who open Instagram or TikTok without meaning to. Choose the apps that eat your hours, set a screen time limit for each - per sitting, per day, or none at all after dark - and when you reach it, the app doesn't just warn you. It blocks.

Then a knight turns up.

⚔️ SIR SUNDER TAKES THE SCREEN

He seizes the whole screen and sets you a short quest: a riddle, a memory pattern, a moment of arithmetic. Solve it and the app is marched to the dungeon for a sentence you choose. Refuse, and he locks it away anyway - for a sentence he chooses. He is a petty man. Don't leave it up to him.

🔒 YOU CAN DELAY. YOU CAN'T IGNORE.

Most app blockers fail at the same moment: you hit the limit, tap "just five more minutes", and keep scrolling. Then do it again.

Sir Sunder hears exactly one plea per sitting. Five more minutes, and he means five. After that the app is locked away whatever you do - solve his quest and the sentence is one you choose, refuse it and the sentence is his.

⏳ CHANGE YOUR MIND SLOWLY, AND ON PURPOSE

Want to loosen your own rules - raise a limit, stop watching an app? You can, but not instantly. Set how steadfast your oath is (24 hours, a week, a month): changes that make things easier wait out that delay, changes that make things stricter land at once. Limits your calmer self chose, still stand at 11pm when you'd rather it wasn't.

🛡️ NO ACCOUNT, AND NOTHING TRACKED

No account. No sign-up. No email address. Nothing to breach, because nothing is held. Everything DoomSunder knows about you sits on your device, and goes when you uninstall it.

• No adverts, ever • No selling or sharing your data • No usage statistics - nothing is measured, and nothing is sent unless you write to us • DoomSunder cannot see what you read, type or watch - only how long an app has been on screen • No accessibility permissions - just Usage Access, and permission to appear over other apps

The privacy policy is one page, and means it.

🚫 WHAT YOU CAN BLOCK

• Any distracting app you choose - TikTok, Instagram, Snapchat, X, Facebook, Reddit, YouTube, the news, the lot • Per-sitting limits, so each doomscroll stays short • Daily caps, so the day's social media isn't gone by lunch • Curfew hours, so the feeds are barred after dark

📚 FOR STUDYING

Set a tight per-sitting limit and daily cap before a revision session. The quest is a speed bump, not a lecture.

💻 FOR FOCUSED WORK

Guard a stretch of focus without installing anything on your work machine, or handing an employer your data.

🌙 FOR THE HOUR BEFORE BED

Curfew hours block the feeds after dark, so the last thing you do isn't a distraction you didn't pick.

🧹 FOR A PROPER DIGITAL DETOX

Watch every feed at once, set curfews across the evening, and let him hold the line while the habit resets.

🌿 FOR THE REST OF IT

Not everything you'd rather be doing is work. The four minutes in a queue, the twenty before dinner, the Sunday morning that went missing - those are the pockets DoomSunder hands back. Read something. Ring someone. Get on top of the life admin. Or nothing at all; nothing is a fine use of ten minutes.

🏰 THE KEEP

Time away from the feed earns Sir Sunder gold: arms from the Forge, a hound (or a dragon) from the Menagerie, and stone by stone, his ruined Great Hall restored. Gold is earned, never bought.

NO SHAME. NO STREAKS LOST AT MIDNIGHT. NO NAGGING.

DoomSunder is a wall, not a warden. A determined user can always walk around it, and that is deliberate - lasting change comes from your own resolve. Sir Sunder just makes the Doom knock first.

Free for 7 days, then £3.99 a month or £19.99 a year in the UK - Google Play shows your own currency before you confirm. It renews until cancelled, and you can cancel anytime in Google Play. If it lapses, Sir Sunder sleeps - nothing is deleted, and your settings wait.

The Doom is patient. So is he.

Privacy policy: https://doomsunder.app/privacy
Contact: greetings@doomsunder.app
Block doomscrolling apps. Screen time limits. No account, ads or tracking.
Updated on
Aug 31, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity
  • Data is encrypted in transit

What’s new

Welcome to the official first release of DoomSunder!

We're excited to share our initial version with you where you can:

- Block the apps that eat up your time
- Set a limit per sitting and per day for each app
- Set up blocks where you can't access your chosen apps (for studying, sleeping, life)

Thanks for joining us early! We'd love to hear your thoughts and feedback to help DoomSunder grow.
Content rating
Everyone
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App support

About the developer
LAKEBRIDGE DIGITAL STUDIOS LIMITED
hello@lakebridge.digital
71-75 Shelton Street Covent Garden LONDON WC2H 9JQ United Kingdom
+44 20 8058 0081