ZeroCloud Apps

Offline, Privacy-First Apps for Everyday Life

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I’m Kian Sage, creator of Zero Cloud Apps — a space dedicated to building and sharing powerful, privacy-first offline apps. My focus is on tools that work without the internet, giving people control, security, and simplicity. Through Zero Cloud Apps, I showcase projects, share updates, and make it easy for anyone to download and use apps that respect independence and reliability.
DayChunk — ADHD Visual Planner & Time Blocking for Neurodivergent Brains

DayChunk — ADHD Visual Planner & Time Blocking for Neurodivergent Brains

A calm, visual way to plan your day when traditional planners have never worked for you.

100% offline. No accounts. No cloud.

Made by ZeroCloud Apps — privacy-first software.

Why DayChunk exists

If you live with ADHD or a neurodivergent brain, you already know:

  • Time feels slippery and unreal.
  • Normal planners and calendar apps feel rigid, overwhelming, or guilt-inducing.
  • You can be incredibly capable — but only when your brain, energy, and environment finally line up.

DayChunk is built specifically for ADHD and neurodivergent minds — not for “busy professionals” in generic productivity apps.

It’s a visual time-blocking planner that respects your energy, sensory needs, executive function, and time blindness. Everything is stored locally on your iPhone, with optional AI help if you choose to turn it on.

🧠 Built for ADHD, not just “busy people”

DayChunk is designed around the realities of ADHD:

  • Time blindness support – see your day as visual blocks, not just tiny numbers on a grid.
  • Executive function aware – break big tasks into smaller, safer steps.
  • Hyperfocus-friendly – plan deep focus sessions and gentle exits back to reality.
  • Shame-free design – no streak shaming, no “you missed a day” punishments.
  • Sensory + energy aware – plan your day based on how your body and brain actually feel.

This isn’t a “be more productive at all costs” app — it’s a self-honouring planning system.

📅 Visual time blocking that feels doable (not punishing)

DayChunk turns your day into a visual timeline you can drag, adjust, and reshape as your brain and energy change.

Key planning tools include:

  • Choose blocks – plan work, rest, errands, calls, and self-care visually.
  • Flex Blocks – tasks that can stretch or shrink as reality changes.
  • Transition Blocks – realistic buffer time for switching between tasks or environments.
  • Hyperfocus Blocks – dedicated deep work time with gentle exit cues.
  • Recovery Blocks – built-in decompression time after hard tasks or social events.
  • Floating Blocks – unscheduled tasks waiting for the right energy + time window.

You’re not forced into a rigid schedule — DayChunk moves with you.

🔋 Mood, energy & sensory awareness in one place

ADHD isn’t just about time — it’s about energy, mood, and sensory load.

DayChunk helps you track:

  • Mood – multiple emotions at once, with intensity.
  • Energy batteries – physical, mental, social, and creative.
  • Focus depth – from scattered to deep hyperfocus.
  • Sensory comfort – how loud, bright, or overwhelming things feel.
  • Sleep & medication effects – how yesterday impacts today.

Over time, DayChunk helps you see patterns like:

  • “I crash every Wednesday afternoon.”
  • “Deep work goes better after slow mornings.”
  • “Certain environments always drain me faster.”

So you can plan with your brain, not against it.

📝 Journal, brain dump, and parking lot — all in one app

ADHD brains generate a lot of thoughts.

DayChunk gives you a safe, private space to capture:

  • Quick brain dumps when your head feels too full
  • Short reflections on what worked and what didn’t
  • Wins, challenges, and lessons from your day
  • A “parking lot” for ideas that shouldn’t derail you right now

You can log notes alongside your timeline, mood, and energy — so your planning and reflection actually live together, instead of in five different apps.

🧩 Advanced planning intelligence — without needing to be a “systems person”

DayChunk quietly learns from how you actually use time and helps you plan more realistically:

  • Notice when tasks always take longer than you expect.
  • See how much buffer you really need between meetings, school runs, or calls.
  • Spot ideal windows for hard tasks vs. admin vs. rest.
  • Build your own “this works for my brain” playbook.

You don’t need to configure a complicated system or learn a new productivity religion — DayChunk does the heavy lifting in the background.

🤖 Optional ChatGPT support (only if you turn it on)

DayChunk works 100% offline out of the box.

If you want, you can optionally add your own ChatGPT API key to unlock an ADHD-aware planning assistant that can:

  • Break overwhelming tasks into small, manageable steps
  • Suggest realistic schedules based on your time and energy
  • Help when you’re stuck, overloaded, or don’t know where to start
  • Offer gentle, non-shaming suggestions when plans fall apart

Important:

  • You bring your own API key (no in-app account or subscription).
  • Your key is stored securely on your device.
  • No data is sent anywhere unless you explicitly choose to use the AI features.

If you never enable AI, DayChunk stays fully offline.

🔒 100% offline, privacy-first

DayChunk follows the ZeroCloud Apps philosophy:

  • No accounts
  • No cloud sync by default
  • No analytics or third-party trackers
  • No ads, no subscriptions

Everything — your plans, mood logs, energy tracking, journal entries, and patterns — is stored locally on your iPhone.

Your data never leaves your device unless you decide to export it.

🎯 Who DayChunk is perfect for

DayChunk is ideal if you:

  • Live with ADHD (diagnosed or self-identified)
  • Are autistic or otherwise neurodivergent and traditional planners don’t work
  • Struggle with time blindness, lateness, or underestimating how long things take
  • Burn out from “all or nothing” bursts of productivity
  • Want a calmer, kinder way to structure your days
  • Care deeply about privacy and keeping your life offline

If you’ve bounced between dozens of apps and still feel like nothing fits your brain, DayChunk is for you.

📱 Devices & requirements

  • iPhone with iOS 17 or later
  • Designed for all modern iPhone models
  • Works completely offline (internet only needed if you choose to use optional AI features)

💰 Pricing

DayChunk is a one-time purchase on the App Store.

  • No subscriptions
  • No hidden upgrades
  • No ads
  • Lifetime access to every feature in the app version you buy.

FAQ

Is DayChunk really 100% offline?

Yes. DayChunk is designed to work fully offline. Your plans, mood logs, energy tracking, and journal entries are all stored locally on your device. There are no online accounts and no built-in cloud sync.

The only time DayChunk connects to the internet is if you choose to enable the optional ChatGPT features using your own API key.

Do I need an official ADHD diagnosis to use DayChunk?

No. DayChunk is built for anyone who feels like their brain doesn’t match traditional planners — whether you’re diagnosed, self-diagnosed, late-diagnosed, or just ADHD-curious.

If concepts like time blindness, overwhelm, or executive dysfunction feel familiar, you’re welcome here.

Does DayChunk replace therapy, coaching, or medication?

No. DayChunk is a planning and self-management tool, not medical treatment.

It can help you:

  • Understand your patterns
  • Plan more realistically
  • Reduce day-to-day chaos

…but it does not replace therapy, coaching, medical advice, or medication. Always speak with a qualified professional about diagnosis and treatment.

Does DayChunk use AI or send my data anywhere?

By default, no.

DayChunk is fully offline out of the box and does not send your data anywhere.

If you choose to enable the optional AI assistant:

  • You enter your own ChatGPT API key.
  • The app only sends the information you explicitly provide in those AI requests.
  • Your key is stored securely on your device.

If you never turn this on, DayChunk never touches the internet.

Does DayChunk sync between devices?

Right now, DayChunk is designed primarily as a single-device planner to keep everything simple and private.

In future updates, we may add optional, user-controlled backup or sync options that still respect the offline-first, privacy-first philosophy.

Is DayChunk complicated or overwhelming to set up?

No. DayChunk is designed for real-world, low-energy days.

You can start with:

  • A simple visual timeline for today
  • A few blocks for what actually matters
  • Optional quick mood and energy check-ins

You don’t have to configure everything at once. The app grows with you — from “just getting through today” to deeper analytics if and when you’re ready.

How much does DayChunk cost?

DayChunk is currently free on the iOS App Store.

There are:

  • No subscriptions
  • No in-app upsells
  • No ads

Download now, and the app is yours.

Who created DayChunk?

DayChunk is created by ZeroCloud Apps, a small indie studio focused on offline-first, privacy-respecting tools for real life — including mental health, evidence logging, and everyday planning.

If you value ownership of your data and calm, intentional technology, you’re in the right place.

Contact and support

Questions or need help with DayChunk? Email hello@zerocloudapps.com.

Please include:

  • App name (DayChunk)
  • Your device model
  • iOS version
  • A brief description of the issue (screenshots if possible)

We aim to respond within 1–2 business days.

Download now. No subscriptions.
Built for ADHD brains. Owned fully by you.

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