mygems

Habit Tracker: 30Day Challenge

Any goal, turned into a 30-day challenge.

  • 30-day challenge grid
  • Widgets & Control Center
  • Heatmap & streak stats
  • Offline, no account
App Store
Why it exists

A month is long enough for a habit to stick and short enough to actually finish, so every habit here gets its own 30-day grid rather than an open-ended list that only ever grows. It is drawn as ink on paper, with hand-drawn check marks and a grid that fills in, and it runs entirely on the device: no account, no cloud, nothing to sign into before you can write anything down.

Five phone screens: a day's habit list on paper, a completed 30-day challenge card, Home Screen and Lock Screen widgets, the journal view with streak counts and a filling grid, and the preset habit picker.

Build your routine in seconds

  • Start from ten ready-made templates: drink water, workout, read, meditate, journal and more.
  • Or create your own with 60+ icons and a full colour palette.
  • Flexible schedules: every day, specific weekdays, or X times per week.
  • Drag and drop to reorder the list.

Stay on track

  • Streaks that respect your schedule: rest days never break them.
  • Per-habit reminders, plus an optional evening summary that only fires if something is left unchecked.
  • Mark a habit done straight from the notification.

Check in without opening the app

  • Home Screen widgets in small, medium and large, with one-tap check-in.
  • A Control Center control for instant access.
  • Siri and Shortcuts support, so “Check off Drink Water” just works.

See your progress

  • A GitHub-style yearly heatmap.
  • Weekly bar charts and completion rates.
  • Per-habit stats and perfect-day tracking.
  • Confetti on perfect days, streak milestone toasts, and haptics on every check-in.

Private by default

No account, no cloud, no tracking; everything stays on your iPhone. Export a full JSON backup or a CSV of every check-in whenever you like; that is never gated behind a purchase.

Made to be usable

VoiceOver support, colour-blind-safe design, Reduce Motion respected, light and dark mode, in English and Tiếng Việt.

Questions

Why 30 days?
A month is long enough to make a habit stick and short enough to actually finish. Every habit gets its own 30-day grid, and completing one ends with confetti, a recap of your stats and a shareable achievement card.
Does it need an account or an internet connection?
No. It is fully offline and private: there is no account and no cloud, and your data stays on your iPhone.
Can I check in without opening the app?
Yes. Home Screen widgets in three sizes offer one-tap check-in, there is a Control Center control, and Siri and Shortcuts work too. You can also mark a habit done straight from its reminder notification.
What is free and what needs Pro?
Free forever: three habits, daily schedules, streaks, the 30-day grid, templates, a reminder and a small widget. Pro unlocks unlimited habits, weekday and times-per-week schedules, all icons and colours, unlimited reminders, the full stats charts, and the medium and large widgets plus the Control Center control.
Can I get my data out?
Yes, and it is never gated. Export a full JSON backup for import later, or a CSV of every check-in for your own analysis.

Guides

The other apps