Polylog vs Mental Note
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Polylog
This app offers a digital journaling experience, allowing users to express themselves through text, images, and decorative elements. It fosters a community where users can share entries and find inspiration from others.
- Versatile text editor
- Add images, stickers, and decorations
- Extensive content library
- Virtual store for customization
- Engage with a global community
- Comment on diary entries
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Get ready to unleash your creativity with Polylog, the ultimate online diary app that takes journaling to a whole new level! Combine the timeless charm of diary writing with the modern world of digital creativity, and explore endless possibilities to personalize your daily entries with a fun, engaging twist. Join the Polylog community today and embark on an enchanting journey of self-expression and creativity. Whether you're a seasoned journaling enthusiast or a beginner looking to dip your toes into the world of digital diaries, Polylog offers an unparalleled experience that's perfect for you. Download now, and start writing your story! #What you can do with Polylog. - Express Yourself: Let your imagination run wild with Polylog's versatile text editor. Create captivating stories, jot down your daily thoughts, or share your fondest memories with ease. - Visual Storytelling: Add life to your entries with a wide array of images, stickers, and decorations. Personalize your diary with vibrant visuals and make it truly one-of-a-kind. - Extensive Content Library: Explore our vast virtual store, filled with a plethora of stickers, sticky note, frame and decorative elements. Customize your diary to your heart's content, and make it as unique as you are. - Engage with Others: Connect with fellow Polylog users, comment on their diary entries, and find inspiration from a global community of creative individuals. Share your thoughts, and learn from the experiences of others.
Mental Note
This app uses AI-powered semantic analysis to help you understand your emotions and thoughts through journaling. Record daily musings and reflections to gain personalized insights into your personal development and self-awareness. Your entries are encrypted and securely stored for privacy.
- AI-enhanced semantic analysis
- Sentiment and tone evaluation
- Personalized insights
- Encrypted and secure storage
- Selective data sharing options
- Daily musings and reflections
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Presenting "Mental Journal": Your Advanced Journaling App with AI-Enhanced Semantic Analysis Discover the next level of introspection with Mental Journal, an innovative journaling app that transcends traditional note-taking. With the integration of AI-driven semantic analysis, Mental Journal redefines the journaling experience, helping you delve deeper into your emotions, thoughts, and personal development voyage. Elevate Your Journaling Practice Mental Journal seamlessly merges the art of journaling with the precision of AI-driven analysis. Effortlessly record your daily musings, reflections, dreams, and objectives. Whether you're a seasoned diarist or just embarking on your journaling journey, Mental Journal is designed to enrich your path to self-discovery. AI-Enhanced Semantic Analysis Unearth concealed patterns and achieve a profound comprehension of your sentiments. Mental Journal's advanced AI technology evaluates your journal entries for sentiment, tone, and semantic context. As you persist in your journaling, the app adapts to your writing style, offering personalized insights that empower your journey of self-awareness. Your Privacy is Paramount We respect the significance of your privacy. Your journal entries are encrypted and securely stored, ensuring the confidentiality of your innermost thoughts. You have full authority over your data and can opt to maintain your entries in private seclusion or share them selectively. EULA: https://docs.google.com/document/d/1GoRXGWyqijvD9NiBoZKyKYqiVKN7aOxx7mVP-kiTavM/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1tccli9HY8JSwI8Vlf4zTgnDXY8L5nsy7C7UJ3XTjOd4
Screenshots
Verdict
The clearest difference is rating: Polylog at 2.0 against Mental Note's 1.0. Polylog also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). Mental Note's advantage is ads (none vs shown) and update cadence (weekly vs fortnightly). On price, review sentiment, ratings volume 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. Polylog sells 10 one-off in-app purchases and Mental Note sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Polylog holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
Polylog ships an update fortnightly, Mental Note weekly. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.
| Parameter | Polylog | Mental Note |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 50 MB | 12 MB |
| Age rating | 12+ | 4+ |
| Developer | Thakornkrid Thanatharapokin | Exhalo |
Customer experience
Polylog
Mental Note
In-app purchases
Polylog
- 30 PolyCoins$0.99
- 100 PolyCoins$2.99
- 225 PolyCoins$5.99
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- 525 PolyCoins$13.99
- 844 PolyCoins$21.99
- 1070 Polycoins$26.99
- 1500 PolyCoins$38.99
- 1850 PolyCoins$46.99
- 2300 PolyCoins$54.99
- 3000 PolyCoins$69.99
Mental Note
- Premium Weekly7 Days trial$1.997 Days
- Premium Weekly7 Days trial$2.997 Days
- Mental Journal Premium7 Days trial$29.993 Months









