Focus Timer - GrowFocus
Sunshine Studios • Health & Productivity
Protect Your Flow State.
Produce Elite Output.
The cognitive focus timer engineered for developers, writers, and remote knowledge workers. Execute 90-minute ultradian deep work blocks, prime executive attention before coding, and track your focus stats with 100% encrypted privacy.
✓ 100% Free Core Features
90m
Ultradian Flow Blocks
10
Cognitive Attention Gyms
100%
On-Device SwiftData
0
Third-Party Trackers
Engineered for Intense Cognitive Demands
Why software engineers and remote knowledge workers choose GrowFocus over basic web and phone timers.
90-Minute Ultradian Cycles
Align your work with human biological alertness peaks. Run deep 90-minute programming or writing sprints, followed by automated restorative breaks.
Prefrontal Neuro-Priming
Don't enter complex architecture cold. Play 2 minutes of Hold Focus (visual tracking) or Rule Switch (cognitive flexibility) to trigger noradrenaline release before deep work.
Zero Surveillance Capitalism
Your focus logs and habits belong to you. GrowFocus stores all data using Apple SwiftData and syncs via your personal iCloud container. We never track your activity or monetize your attention.
Trusted by Engineers, Founders & Writers
Real feedback from professionals operating at the frontier of knowledge work.
Finally, a focus app that respects privacy
"Every productivity tool today is an enterprise SaaS tracking your screen time and selling data. GrowFocus is native Swift, 100% on-device, and syncs via iCloud. Plus, the anti-wilt timer keeps me out of Slack all morning."
Cognitive warmups are a game changer
"The 10 attention gyms seemed novel at first, but warming up my working memory with 'Remember & Act' before analyzing genomic datasets cut my context-switching latency in half."
Finished my manuscript 3 weeks early
"I set my iPhone next to my Mac with GrowFocus running a 90-minute block. Seeing the botanical biome slowly animate in 3D without distracting notifications gave me the best writing flow of my career."
Frequently Asked Questions
Can I use GrowFocus while keeping my phone in Do Not Disturb?
Absolutely. GrowFocus integrates seamlessly with iOS Focus Modes. You can activate your custom Deep Work profile, silencing all Slack, email, and social apps while GrowFocus tracks your uninterrupted session.
Does GrowFocus require creating an account or logging in?
No account required. Download the app and start focusing immediately. Your sessions sync privately across your Apple devices using your native iCloud account.
How does GrowFocus support the 90-minute ultradian rhythm?
You can customize session durations from 10 to 90 minutes. Completing a 90-minute deep work sprint rewards you with increased solar energy and rainwater drops for your botanical sanctuary, incentivizing longer, higher-quality focus blocks.
Step Into Your Flow State Today
Download GrowFocus for iOS. Experience real-time anti-wilt accountability, 10 cognitive attention games, and encrypted privacy.