One Minute Diary vs iSera Mentor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Minute Diary
Easily capture daily memories by adding a photo, recording your thoughts or voice, and rating your mood. This app makes journaling quick and enjoyable, helping you build a habit of reflection and gratitude.
- Capture memories in 3 steps
- Record voice or write text
- Rate your mood
- Relive past memories
- Daily reminders
- Inspiring reflection questions
- Private data storage
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Create a beautiful memory in 3 simple steps: - choose a photo - write or speak for a minute or two - rate how you feel CAPTURING MEMORIES MADE EASY Do you think that it would be awesome to keep a diary, but it seems to take too much time and effort? Do you want to enjoy the health benefits of journaling? Do you like the idea of looking through memories when you are older? One Minute Diary is here for everybody who does not get along too well with more traditional diaries. And for people who would like to try something new. It makes keeping a diary as easy, fast and enjoyable as possible. It is developed by a psychologist from Germany who believes that keeping a diary should be fun and easy. So go ahead and give it a try. After all, it takes only one minute a day. One minute just for yourself. FEATURES - capture beautiful memories in 3 simple steps: choose a photo, write or speak for a minute or two and rate how you feel - travel in time and explore and relive long-forgotten memories with smooth animations - create memories daily or capture special moments whenever it feels right - set a daily reminder to build a healthy journaling habit - inspiring questions help you to reflect on your day (awareness & gratitude focused) - choose a color theme that you like - private: your data stays on your device and on your private storage - extra safety: export and import encrypted or unencrypted backups THE STORY BEHIND THE APP The app is created by me, Adrian, a psychologist (MSc) from Germany. I always wanted to keep a diary and I enjoy the idea of looking back at long-forgotten memories many years from now. However, I discovered that traditional diaries and I are not a good match. I always struggled to take the time and to build a habit of keeping a diary. So I decided to build an app that solves that problem for me. After a while, I realized that I am not the only one with that problem. So I decided to share this app with the world. I hope that you enjoy it as much as I do. If you do, please consider giving the app a 5-star rating and recommend it to your friends. That would help me out a lot. If you have feedback, please participate in the 5 minute mini survey in the app's settings. Or you can send me an email (in the app settings: “send an email to the developer”). I would love to hear from you. The app will be updated regularly to value and incorporate your feedback. Yours Adrian
iSera Mentor
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iSera is a mental wellness and journaling app. With AI-powered mentor character "Sera" you engage in Socratic dialogue and find your own answers. Not a fast chatbot - a calm, measured, non-judgmental companion. CORE FEATURES AI MENTOR CONVERSATIONS Sera is a calm 40-something character who blends Anatolian simplicity with a modern outlook. She asks first, never imposes. Her replies are short - 1 to 3 sentences. She doesn't recite proverbs or offer false hope. When she doesn't know something, she gently steers the conversation back to lived experience. EMOTION JOURNAL Log your daily emotion, body, and mind state. Leave a note. Choose from tags like calm, tired, hopeful, undecided, sensitive. Notes are only for you. WEEKLY SUMMARY Once you have two or more entries, the History screen shows an automatic 7-day emotional trend summary. Most frequent emotion, longest streak, day count. REMINDERS A daily nudge at your chosen time to take a moment for yourself. Adjust anytime from Profile. HISTORY VIEW Filter all your entries by time, emotion, or text. Open any entry for full details or delete it. ADDITIONAL FEATURES - 4-language support: Turkish, English, Spanish, German full localization - Themes: light green or dark green; auto mode follows your device theme - Optional sun sign greeting and a gentle daily note (small cultural touch, distance kept) - Sera persona settings for Premium users YOUR DATA All your entries and conversations live only on your device. Apart from the AI conversation service (Anthropic) and subscription infrastructure, no data is sent to servers. Profile > Data & privacy > "Share my data" gives you a JSON backup. KVKK and GDPR compliant. PLANS AND PRICING iSera Basic (Trial) - 7 days free trial - 35 total messages with Sera - After trial: YOU MADE IT badge + 10% off Plus/Premium for the first month iSera Plus - $9.99/month or $59.99/year (50% off) - 210 messages per week - 90 days of history - 5 reminders iSera Premium - $19.99/month or $119.99/year (50% off) - 525 messages per week - Unlimited history access - Sera persona settings - Early access to new features Yearly plans start with 7 days free. Auto-renews unless cancelled at the end of the period. You can cancel anytime in your App Store account settings. IMPORTANT iSera is not psychotherapy, it's a companion. For acute or chronic mental health needs, please consult a professional. TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://go034.github.io/isera-privacy/privacy.html SUPPORT: oktayriding@gmail.com --- IMPORTANT: iSera is a wellness and journaling app. It does not provide medical diagnosis, treatment, or psychological counseling. Consult a healthcare professional for health concerns. Emergency resources are accessible from Profile > Settings > Emergency support.
Screenshots
Verdict
The clearest difference is in-app purchases: One Minute Diary at none against iSera Mentor's 4. iSera Mentor's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement 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. iSera Mentor sells 4 in-app purchases, starting at $4.99 per month. One Minute Diary asks for nothing beyond the download.
One Minute Diary ships an update every 2 months, iSera Mentor every 2 weeks. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.
| Parameter | One Minute Diary | iSera Mentor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 41 MB |
| Age rating | 4+ | 12+ |
| Developer | Adrian Benjamin Haeske | Guven Davut Oktay |
In-app purchases
One Minute Diary
No in-app purchases
iSera Mentor
- iSera Plus$4.991 Month
- iSera Premium$9.991 Month
- iSera Plus7 Days trial$49.991 Year
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- iSera Premium7 Days trial$79.991 Year
Questions
Is One Minute Diary free?
Is iSera Mentor free?
Do One Minute Diary or iSera Mentor have ads?
Which is updated more often, One Minute Diary or iSera Mentor?
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