# 30d - Custom 30 days challenge — Habit Tracker & Daily Streak

> Habit Tracker & Daily Streak (iPhone/iPad app by GRAINES.)

- Source: https://appshunter.io/ios/app/30d-custom-30-days-challenge/id6770298918 (this page in markdown: same URL + `.md`)
- Developer: [GRAINES](https://appshunter.io/developer/1370928629)
- Category: Lifestyle, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 2 MB
- Languages: American English
- Released: 2026-05-19
- Data updated: 2026-08-12
- User reviews in markdown: https://appshunter.io/ios/app/30d-custom-30-days-challenge/id6770298918/reviews.md

## What is 30d?

30 days. One habit. Everything changes.

ThirtyDays is the calm, beautiful way to actually finish a 30-day challenge. Pick one habit, show up every day, and watch a streak — and a new identity — quietly build.

No feeds. No streak shaming. No 47 things to track at once. Just one challenge, one daily check-in, and the science-backed window your brain needs to rewire.

— WHAT YOU GET —

• ONE ACTIVE CHALLENGE — radical focus. Finish it, then start the next.
• DAILY CHECK-IN — log a photo, a thought, or just tap done.
• SMART REMINDERS — a single nudge at the time you choose.
• REAL STREAK MATH — a missed day breaks the streak but never the challenge. Keep going.
• MILESTONE MOMENTS — celebration notifications on days 7, 15, 21 and 29.
• PRIVATE PHOTO JOURNAL — your 30-day story in pictures, saved to your iCloud.
• GORGEOUS DESIGN — animated cloudy gradients, glass surfaces, SF Pro typography. Built natively for iOS 26.

— CHALLENGES PEOPLE ACTUALLY DO —

Running · Gym · Drink 2L water · Cold showers · Eat clean · Sleep 8h
Meditation · Reading · Journaling · No social media · Gratitude · Breathwork
Drawing · Guitar · Coding · Writing · Language learning · Piano
Wake early · No alcohol · Cook at home · 10k steps · Declutter

…or build your own. If you can do it once a day, you can run a 30-day challenge with it.

— THE SCIENCE —

Neuroscience shows consistent daily reps rewire your brain in 21–66 days. Thirty is the sweet spot: long enough to make it real, short enough to actually finish.

— WHY THIRTYDAYS, NOT ANOTHER HABIT TRACKER —

• One habit at a time. Trying to fix everything at once is how you fix nothing.
• Calendar-day check-ins (00:00–23:59) — no anxious rolling 24-hour windows.
• Your longest streak is saved on every run, even if a day slips.
• No accounts. No feeds. No social scores. No ads. Ever.
• Built native in SwiftUI for iOS 26 — fast, fluid, light on battery.

— PRIVACY FIRST —

Your photos, reflections and progress live in your iCloud, not on our servers. No sign-up. No analytics. No tracking. The app simply works for you.

— WHO IT'S FOR —

People who keep starting things and stopping. Anyone who wants to build a fitness habit, meditate daily, finally read more, learn a language, quit a vice, or prove to themselves they can finish something hard. Beginners who want a calm tracker — and athletes, creators and founders who want a clean streak app without gamification noise.

— THE PROMISE —

You don't need 100 habits. You need one — done 30 times.

Pick yours. We'll handle the reminders, the streak, the journal, the milestones.

Day 1 starts now.


## Version history (last 1 release)

### 1.0 — 2026-05-19

No release notes.

## More apps by GRAINES

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- [Pavot - Coffre fichiers photos](https://appshunter.io/ios/app/pavot-coffre-fichiers-photos/id1643763563)
- [Habitudes, daily habit tracker](https://appshunter.io/ios/app/habitudes-daily-habit-tracker/id6446182145)

All apps by GRAINES: https://appshunter.io/developer/1370928629

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*