Now on iOS
New: Detox Mode with structured programs and support

Take Control Together

You and your mates keep each other accountable. Set gambling restrictions together, get notified when limits are tested, and tackle gambling habits as a team with Whistl for iPhone. Try our new Detox Mode for structured programs with solo, partner, and group support options.

4M+
People need this
24/7
Protection
100%
Privacy focused
People supporting each other
Mate-based accountability

Privacy-first tools to support healthier habits.

New feature available

Detox Mode: Structured Support Programs

Choose your journey: go solo, partner up, or join a group. Detox Mode provides structured programs with daily check-ins, milestone tracking, and community support.

  • Solo detox with personalized daily challenges and progress tracking.
  • Partner detox programs designed for couples or close friends.
  • Group detox with community support, shared milestones, and group challenges.

Detox Mode snapshot

Free for all users

Choose your program length: 7, 14, 30, or 90 days. All features included at no cost.

"The 30-day partner detox program helped us both stay accountable and celebrate wins together."

Sarah & Mike • Detox Mode users

Download and try Detox Mode

Download Whistl on iOS

Whistl is live on the App Store. Download now, invite your mate, and start backing each other with privacy-first, mate-based accountability.

Accountability That Actually Works

Whistl connects you with your mate to create mutual accountability. Set restrictions together, get real-time alerts, and support each other's journey to healthier gambling habits.

Mate-Based Restrictions

You and your mate set gambling restrictions for each other. Want to change limits or access blocked apps? You'll need to ask your mate for permission first.

Predictive Support Alerts

With your consent, Whistl uses privacy-first signals to anticipate when a relapse might be likely and proactively alert your chosen sponsor so support can reach you early.

Real-Time Alerts

When you try to access a gambling app during blocked times, your mate gets notified instantly. True accountability in real-time.

Custom Time Blocks

Set personalized restrictions together—from 24/7 blocks to allowing just 5 minutes a day. Your mate controls your limits, and you control theirs.

AI Weekly Reports

Get AI-generated insights into your behavior patterns. Understand your triggers and progress with detailed weekly reports you both can review.

Location-Aware Support

Opt in to gentle safeguards near gambling-prone areas like pubs or casinos. When you enter predefined zones, Whistl can notify your partner—transparent and adjustable.

Shared Statistics

Track your progress together with detailed stats on blocked attempts, time saved, and milestones achieved. Transparency builds accountability.

Healthy Balance

Designed for everyone, not just addiction recovery. Keep each other in check, enjoy occasional fun, but ensure it never goes too far.

"Having my mate set my gambling restrictions and getting alerts when I try to access blocked apps has been a game-changer. The accountability is real and it actually works."

— Early Beta Tester

From the Blog

Follow the Whistl founder journey as we build a privacy-first digital referee.

Founder Journey #1: The Moment Whistl Was Born

The moment we realised mates need a digital referee — and why.

Read

Founder Journey #2: Talking to Mates Changed Everything

Interviews reshaped our approach to accountability and trust.

Read

Founder Journey #3: Building the First Prototype

What we built first, what broke, and what we kept.

Read