Welcome! This page gives quick answers and how-tos for Quark—the picture-based habit tracker for iPhone.
Quark helps you build habits by revealing a picture as you complete days. Each check-in uncovers tiles; finish the cycle to reveal the full image.
Highlights
Fast, tap-to-check calendar
Picture reveal progress bar & tiles
Daily / times-per-week / specific-days schedules
Streaks and cycle completions
Pro: Repeat Habits (multi-cycle goals), Home Screen widget, use your own images, Unlimited habits
Create a habit: Tap ＋ → choose an image → set name & schedule.
Check in: Tap today’s circle on the habit or calendar. Tap again to undo.
Watch it reveal: Each completion uncovers tiles until the image is fully shown.
Tip: Enable Notifications during onboarding or later in iOS Settings ▸ Notifications ▸ Quark.
A cycle is the number of days required to reveal one image (e.g., 28 days).
With Repeat Habits (Pro), set multiple cycles (e.g., 3 × 28 days). Progress shows:
Days this cycle (e.g., 12/28)
Cycle count (e.g., 1/3 completed cycles)
Undoing a day immediately updates both the cycle and reveal progress.
See progress at a glance.
Add it
Long-press the Home Screen → ＋ (top-left).
Search Quark → choose Small or Medium.
Tap Add Widget, then Edit Widget to pick your pinned habit.
From the app you can also use ⋯ → Pin to Widget on a habit.
If the widget shows old data, open Quark once; it refreshes automatically.
Choose Use Your Photo when creating/editing a habit. Photos are processed on device only.
Free trial: 7-day trial on Monthly/Yearly (one trial per subscription group).
Restore purchases: Paywall → Restore Purchases (use the same Apple ID).
Change/cancel: iOS Settings ▸ Apple ID ▸ Subscriptions.
If buttons aren’t loading on the paywall, ensure you’re online and signed in to the App Store.
We don’t run servers. Habits, check-ins, images, and settings stay on your device. Payments are handled by Apple/StoreKit. See the full policy on the App Store listing or at https://sites.google.com/view/quark-privacypolicy/home.
I tapped the wrong day.
Tap again to undo. Progress and cycle counts update immediately.
Widget isn’t updating.
Open the app once.
Make sure Background App Refresh is on.
Re-edit the widget to confirm the pinned habit.
Can’t find Pro features after purchase.
Tap Restore Purchases on the paywall.
Confirm you’re using the same Apple ID.
Image gallery tiles overlap.
Update to the latest version; the gallery uses a 2-column adaptive layout.
Does Quark sync to cloud or require an account?
No. Everything is local to your device.
Can I change the cycle length later?
Yes—edit the habit; progress recalculates per your schedule.
Do I get multiple free trials if I switch plans?
No—Apple allows one introductory offer per subscription group.
Can I export data?
(Not yet.) It’s on our roadmap.
Need help or have feedback?
Email: kenanbaltaci@gmail.com
Thanks for using Quark!