Sharp vs 아틴(ARtin)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sharp
This app transforms your daily journal entries into unique AI-generated artwork. It uses on-device AI for emotion analysis and character reactions, ensuring your personal thoughts remain private. Build a consistent writing habit with engaging feedback and illustrations.
- AI-generated illustrations from diary entries
- On-device AI for privacy
- Emotion analysis of journal content
- Interactive AI character reactions
- Helps build a writing habit
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AI turns your day into art — your own safe, private picture diary. Sharp is a picture diary app where AI illustrates your entries with beautiful artwork. Emotion analysis and character reactions are powered by Apple's on-device AI, so your diary never leaves your device. ■ AI Picture Diary AI creates expressive illustrations based on your diary entries. Build your own unique picture diary, one day at a time. ■ On-Device AI · Complete Privacy Emotion analysis and character reactions are processed entirely on your device using Apple's on-device AI technology. Your diary content is never sent to external servers. Illustration generation optionally uses cloud AI. ■ Cute AI Character Reactions 5 unique AI characters react to your diary over time. From warm comfort to honest advice, experience empathy like chatting with real friends. ■ Emotion Analysis AI automatically analyzes the emotions in your diary, helping you understand your emotional patterns. ■ Build a Writing Habit The reward loop of character reactions and illustrations helps you build a consistent journaling habit. Best experience on iPhone 15 Pro and later.
아틴(ARtin)
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ARtin turns your daily routines into beautiful living art. Every completed routine fills your canvas — planetary orbits, stained glass, gardens, oceans, and constellations. Your consistency isn't just a streak counter. It's a universe you grow. — 5 VISUALIZATIONS THAT GROW WITH YOU — • Orbit — planets tracing your yearly journey • Stained Glass — a mosaic filling up across the year • Garden — flowers blooming from daily wins • Ocean — reefs filling the deep with your achievements • Constellation — your own night sky, lit star by star — BUILT FOR REAL LIFE — • Skip — swipe to mark a routine as skipped; your streak stays safe • Streak Freeze — up to 2 missed days per month are automatically forgiven • Per-routine 365-day heatmap to see exactly where you shine • Custom reminder messages — every notification in your own voice • Routines + to-dos in one place, with subtasks • Rich statistics: weekly, monthly, and yearly trends, heatmaps, category balance — YOURS ALONE — • Offline-first — your data lives on your device • No sign-up required • Optional Google Drive backup when you want it • Dark and light themes + 12 accent colors • Home screen widgets • Korean and English Small wins, beautifully visualized. That's ARtin.
Screenshots
Verdict
The clearest difference is ads: Sharp at none against 아틴(ARtin)'s shown. 아틴(ARtin)'s advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sharp ships an update every 4 days, 아틴(ARtin) every 3 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.
| Parameter | Sharp | 아틴(ARtin) |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | OKMIN LEE | hyunjin lee |
In-app purchases
Sharp
No in-app purchases
아틴(ARtin)
No in-app purchases









