Every feature TiedSiren ships, in detail.
Built for people who are serious about breaking phone addiction. Every feature here exists because the standard "ask are you sure?" blocker wasn't enough.
Strict ModeCore
Lock in a session and a duration up front. The session cannot be shortened from your phone once it starts. Strict Mode needs TiedSiren Pro, which starts with a 7-day free trial on the yearly plan.
Ordinary blockers ask "are you sure?" and fold the moment willpower runs out. Strict Mode flips the script: the session decision is made up-front, not in the heat of the urge.
During a session, blocked apps and websites do not open and the timer will not be shortened. You can extend it, never cut it. The decision to focus is made once, at the start, not relitigated every five minutes.
Two optional locks close the usual ways out. The uninstall lock stops TiedSiren from being removed until the timer ends. The Settings lock keeps the Settings app closed until the timer ends, and the Wi-Fi, Bluetooth and permission screens with it. You turn them on before the timer starts.
- Studying for exams or interviews
- Breaking late-night scrolling habits
- Deep work sessions where you need a hard wall

Custom Blocklists
Block Instagram, TikTok, YouTube, or any app installed on your phone, and the websites too. Build separate lists for work, study, sleep, or any context.
A blocklist is your personal list of apps and websites to lock during a session. Pick from anything installed on the device: social, news, games, shopping, dating, betting, anything.
Each blocklist carries its own websites, so the browser is not a side door. A new list starts with the popular time-wasting sites already filled in. Add a site by its address, such as youtube.com, or remove one. A blocked site closes the moment it opens.
You can keep multiple blocklists side by side. A "Work" list for deep focus, a "Sleep" list that locks the doomscrolling apps after 11pm, a "Study" list for exam season. Switch between them as the day goes.
- Different rules for different parts of the day
- Separate blocklists for weekdays vs weekends
- A "no everything" list for true offline time

Scheduled Sessions
Set daily or weekly recurring schedules, or keep a block on all day. Your blocks activate automatically, with no decisions to make in the moment.
The hardest part of self-control is the moment you have to choose. Scheduled Sessions remove that moment entirely. You decide once ("no social apps from 9am to noon, every weekday") and the phone enforces it without asking.
A weekly session shows as blocks on a grid of the week. Tap a block to select it, stretch it to change its hours, or start from a preset. A daily session can also run all day, which makes it a permanent block with no end time.
This is what makes the system stick over months. Habits don't form when you have to decide each time; they form when the decision is already made.
- A daily morning focus block (9am–noon)
- A nightly wind-down (11pm–7am)
- Sunday digital detox (all day)
- A permanent block on the one app you never want back

Focus Timer
Built-in countdown for focused work sessions. See exactly how long you've been distraction-free.
Start a timer, pick a duration, start the session. The timer becomes the agreement: until it ends, the apps stay locked. When it ends, the lock releases.
It's a small thing that makes a big difference: instead of vague intentions ("I'll focus for a while"), you get a specific commitment ("90 minutes, locked").
- Pomodoro-style 25-minute sprints
- 90-minute deep work blocks
- A 4-hour study session before an exam

Ready to take back
your time?
Blocking is free. No credit card. Works on Android 8 and up.
Want it on iOS, macOS, or Windows? Join the waitlist for early access.