PositiveDiary vs ポジティブノート
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PositiveDiary
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Enjoy positive days with AI characters! PositiveDiary is a unique diary app where AI characters give you warm, affirming comments on every entry you write. No matter the content, these characters are here to encourage, support, and celebrate your daily moments with unconditional positivity. The app features a variety of lovable characters! Each character has a distinct personality and offers comforting words, making writing in your diary something you’ll look forward to. Main Features: • Diary Creation: Capture your daily thoughts and experiences with easy-to-use tools. • AI Character Comments: Receive affirming comments from AI characters on your diary entries. • Reminder Function: Set reminders to build a positive habit of daily journaling. • English and Japanese Support: Available in both English and Japanese. Enjoy a positive, cheerful daily life with your AI friends in PositiveDiary!
ポジティブノート
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Start each evening with 3 positive things — and watch your mindset transform. Positive Note is a journaling app built around the "Three Good Things" technique, a proven method from positive psychology that trains your brain to notice joy, reduce stress, and build a more optimistic outlook on life. HOW IT WORKS Every day, write 3 things that made you happy, something you accomplished, or a moment you're proud of. No matter how small — "all the traffic lights were green" counts. The simple act of noticing and recording these moments rewires your brain to seek out happiness in everyday life. FEATURES • Three Good Things — Write 3 positive entries each day using the proven positive psychology method • Calendar View — Review past entries and visualize your progress month by month • Streak Tracking — Stay motivated with your consecutive day streak and total entry count • Daily Reminders — Set a custom notification time to build a consistent evening habit • Photo Journal — Attach a photo to capture the moment and make memories last • 30 Color Themes — Personalize the app with handpicked gradient themes • Widget Support — See your current streak right on your iPhone home screen • Privacy First — All data is stored locally on your device; no account required THE SCIENCE BEHIND IT The "Three Good Things" technique was developed by positive psychology researcher Martin Seligman. Studies show that writing three positive things each day for just one week significantly increases happiness — and the effect can last for months. WHO IT'S FOR • Anyone who wants to build a more positive, grateful mindset • People looking for a simple, sustainable daily journaling habit • Those experiencing stress, anxiety, or negative thinking patterns • Anyone who wants to appreciate the small joys hidden in everyday life Start small. Write 3 things. Feel the difference. Download Positive Note and begin your journey to a happier, more grateful you.
Screenshots
Verdict
The clearest difference is update cadence: PositiveDiary at every 9 days against ポジティブノート's every 3 weeks. On price, ads, in-app purchases and device support 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.
PositiveDiary ships an update every 9 days, ポジティブノート every 3 weeks. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.
| Parameter | PositiveDiary | ポジティブノート |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 14 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Infinity Inc. (Apps) | Masahiro Okura |
In-app purchases
PositiveDiary
No in-app purchases
ポジティブノート
No in-app purchases









