# Just One - Smoke Tracker — Track, Analyze, and Control

> Track, Analyze, and Control (iPhone/iPad app by 子威 毛.)

- Source: https://appshunter.io/ios/app/just-one/id6758368370 (this page in markdown: same URL + `.md`)
- Developer: [子威 毛](https://appshunter.io/developer/1872415784)
- Category: Productivity
- Price: Free
- Age rating: 17+
- Requires: iOS 17.6 · 12 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2026-01-29
- Data updated: 2026-02-23
- User reviews in markdown: https://appshunter.io/ios/app/just-one/id6758368370/reviews.md

## What is Just One?

"Just One" is a beautifully crafted companion designed to help you understand and control your smoking habits without the guilt or complexity of traditional trackers.

Designed with a philosophy of "Honest Reflection," Just One moves beyond simple counting. It analyzes your daily patterns, assigns a performance grade (S to D), and helps you visualize not just how much you smoke, but how much you save—both in money and health impact.

Key Features:

Premium Experience: A satisfying "Liquid Glass" interface with immersive haptic feedback that makes every interaction feel real.
Privacy First: Your data belongs to you. Built with SwiftData and CloudKit, everything stays on your device or your private iCloud. No servers, no tracking, no accounts.
Smart Grading: Receive a daily "Smoking Grade" (S, A, B, C, D) based on your goals. It’s like a credit score for your lung health.
Dynamic Insights: See real-time calculations of money spent and tar/nicotine intake.
Intelligent Notifications: Forget generic reminders. Just One analyzes yesterday’s data to send you personalized encouragement or gentle warnings.
Weekly Reports: Detailed breakdowns of your weekly progress to help you spot trends and cut back effectively.
Take control, one tap at a time.


## Version history (last 1 release)

### 1.0 — 2026-01-29

No release notes.

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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 2026-02-23.*