For students

Exam week,held.

Hand your study partner the key to the apps that eat your revision time. Breaks still exist; they just need a yes.

Waiting list: First month free, every feature · No card · Android first

Made for students

Study hours that actually hold.

  • Study hours, not just bedtime.

    Set a block for 2–6 pm on weekdays, or for the whole of exam week.

  • First month free.

    Everyone on the waiting list gets Second Key free for their first month, with every feature. Start it before exam season.

  • A break still exists.

    Ask for fifteen minutes with a reason. If they say yes, the apps re-lock on their own.

Get early accessSecond Key for students

See it work

Proof by example.

Maya is blocked until 7:00 am. Sam holds her key. Watch it run, or take over either phone.

Key held by Sam

Held

Held until 7:00 am

4h 18m to go · Tonight

Need out early?

need to reply to a DM

Maya · blocked until 7:00 am

11:42

Friday, 19 September

Nothing to decide. Maya is holding.

Sam · holds Maya’s key

Playing on its own. Tap either phone to take over.

11:47 pm

One more video.

You said one more match.That was two hours ago.

Deleted it six times.Installed it seven.

You set a limit.It asked if you’d like to ignore it. You did.

Every blocker you’ve tried ends at the same person. The exit was always

you.

So hand the key to someone who won’t open the door at 11:47 pm.

How it works

An early unlock exists if and only if your keyholder approves it.

  1. 01

    Pick the apps.

    Instagram, TikTok, BGMI, YouTube: whichever ones take your nights. You choose them from the apps on your phone.

  2. 02

    Set the hours.

    Tonight by default: 9:30 pm to 7:00 am. Decide who can end it early: you after a delay, your keyholder, or nobody.

  3. 03

    Hand someone the key.

    A partner, a sibling, a study partner. Six characters and sixty seconds, on whatever phone they own.

  4. 04

    Hold.

    The shield goes up. Leaving early takes a reason and their answer, and every attempt to slip out lands on their phone.

Disciplinewas never a solo sport.

The people who get better rarely do it alone. Give someone the key, and let the week’s tally speak for you.

Smart Blocks · Android

One intent.

Use your phone intentionally.

Say what you want from your phone, in your own words. Second Key turns that one sentence into one recommended block. You approve it, and someone you trust holds the key.

  1. 01

    Say it

    Type one sentence, or speak it on phones that can turn speech into text on the device. No audio leaves your phone.

  2. 02

    Code reads it first

    Our own rules work out the apps and the hours. A sentence they understand costs nothing and never touches a model.

  3. 03

    Claude Haiku, only if needed

    If the rules can’t read it, that one sentence goes to Claude Haiku. Up to 5 of these a day, and its answer passes the same checks.

  4. 04

    You approve

    You see the apps, the hours and who can end it early. Nothing is saved until you approve.

Your one sentenceExample only, not real data.

Recommended block

Apps
Instagram
When
Starts now
Length
1 h 30 min
Can end it early
Your keyholder

Smart Blocks can’t end a block, remove apps from a running one, or grant an unlock. Those stay with you and your keyholder. Blocking itself works without AI. Planned for Pro and Pair. On Android, home-screen widgets put the Ask bar, Block now, Focus and your streak one tap away.

Claude connector

Plan it where you already think.

Connect Second Key to Claude as a custom connector, and plan your blocks from the conversation you’re already having.

  • List your blocks and whether each is running
  • Create a block from apps and hours
  • Change a block’s name, hours, days, apps or unlock rule
  • Pause, resume or delete a block that isn’t running

In Second Key, tap Connect Claude to get your private address. In Claude, add it under Settings, Connectors, Add custom connector. Treat the address like a password; you can disconnect or replace it at any time.

In ClaudeExample only, not real data.

You

Block Instagram on weeknights after 10.

Claude

Done. Instagram is held Monday to Friday from 10 pm, and your keyholder can end it early.

You

End tonight’s block early.

Claude

I can’t. A running block can only get stronger. You can ask your keyholder to unlock it.

A running block can only get stronger, from Claude too: more apps, a later end, a stricter unlock. Claude can’t approve an unlock.

Suggestions

See the pattern. Choose the block.

Second Key can read how you use your phone, on the phone, and suggest one block you might want. You decide. Nothing is saved until you tap.

  • First Look

    See where your evenings go, and get one suggested weekly block.

    Top three apps and, if a pattern repeats, a single block to hold every week.

  • Smart Suggestions

    At most one nudge a day, never during a block.

    A suggestion only when the same pattern keeps showing up. “Not now” is always an option, and asking again backs off.

  • Keyholder Brief

    A keyholder sees a plain summary of recent requests before answering.

    Five counts: asks tonight, asks this week, how many were approved, minutes asked, and phone reports. It informs and never recommends or decides. Counts only; never messages or content.

These three use no model: they are rules and arithmetic on the phone. By design, raw usage stays on the phone. A suggestion can’t loosen a running block, can’t grant an unlock, and never lists the phone, emergency or Settings apps.

Built for the Android app and not released yet. iPhone: not available. Planned, not available: a Sunday summary of your week. It does not send yet.

Compare with Screen TimeHow it works

Early access · Before exam season

1 monthfree, with every feature

Everyone on the waiting list gets Second Key free for their first month, with every feature. Join now and it’s ready before your next exams.

No card to join · One email when your invite is ready

Questions.

Can I block apps only during study hours?

Yes. A schedule is any days and hours you choose: weekday afternoons, the night before an exam, or all of exam week.

Can two of us hold each other’s keys?

Yes. Keys go both ways: block your own apps and hold your study partner’s key at the same time.

Does my study partner need the app?

Yes. To hold your key they install Second Key on their Android phone and enter your six-character code.

What if my keyholder is asleep?

An unanswered request stays unanswered unless auto-approve is switched on. It is off by default, and when on it waits at least ten minutes.

What are Smart Blocks?

On Android, you can type or say one sentence and get one recommended block to approve. Second Key’s own code reads the sentence first; if it can’t, that sentence goes to Claude Haiku, up to 5 times a day. Nothing is saved until you approve. Built, in testing and not released yet. Smart Blocks can’t end a block, remove apps from a running one, or grant an unlock. Those stay with you and your keyholder. Blocking itself works without AI.

Does Second Key work with Claude?

Second Key has a Claude connector (MCP) that can list, create, change, pause and delete blocks. A running block can only get stronger through it, and it can’t approve unlocks. Android; not released yet. A running block can only get stronger, from Claude too: more apps, a later end, a stricter unlock. Claude can’t approve an unlock.

Close the gap.

Join with your email, then invite your study partner. Each one who joins moves you up ten places.

No card today. One email when your invite is ready.