# Onsen vs Solid Diary - AI Journal

Onsen records 3,964 monthly visits with +23.7% month-over-month growth and Freemium pricing. Solid Diary - AI Journal records 0 monthly visits with — growth and Paid pricing.

| Metric | [Onsen](https://openaitools.app/tool/onsen) | [Solid Diary - AI Journal](https://openaitools.app/tool/solid-diary-ai-journal) |
| :--- | :--- | :--- |
| Website URL | https://www.onsenapp.com | https://apps.apple.com/us/app/solid-diary/id6448245802 |
| Categories | AI Mental Health, AI Therapist, AI Coaching, AI Assistant | AI Mental Health, AI Assistant, AI Text Classifier |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 3,964 | 0 |
| MoM Growth Rate | +23.7% | — |
| Primary Market | United States | Global |
| Direct Visits | 1,573 | 0 |
| Review Score | 4.1 | 4.5 |
| Saved Count | 1 | 0 |
| Supported Platforms | Website | App |

## Onsen

Onsen is a mobile AI companion built around mental and emotional wellbeing. The app offers 24/7 conversational support in a private, non-judgmental setting where users can talk about stress, grief, anxiety or everyday worries. Rather than a single chatbot screen, Onsen blends several modes of reflection: a chat experience, guided sessions that adapt to the user's patterns, an AI journal that turns conversations into written entries with mood analysis and generated artwork, and hands-free voice conversations.

What sets Onsen apart is the structuring of emotional work into something trackable. Mood check-ins feed personalized recommendations, journal entries accumulate into a running narrative, and the app publishes outcome data from its own user assessments suggesting improvements in mood and stress over time. The tone throughout is deliberately warm and low-pressure, aimed at people who want support between therapy sessions, cannot currently access a therapist, or simply prefer to reflect privately.

Onsen is free to download and use, with no credit card required, and adds optional paid features on top. It is available for mobile and also works across devices. It is a wellbeing aid rather than a clinical service, so it complements rather than replaces professional mental healthcare.

**Pricing & Plans:** Free to download and use with no credit card required; optional paid upgrades and premium experiences are offered in-app.

- **Personalized AI companion:** A conversational guide that adapts to your patterns, world and personal history over time.
- **Guided experiences:** Structured conversations and prompts that help you navigate specific life challenges.
- **AI journal with mood analysis:** Every conversation can become a journal entry with AI artwork, mood analysis and captured memories.
- **Hands-free voice conversations:** Say your thoughts out loud and hear your AI guide respond for a natural, low-friction session.
- **Privacy-first, non-judgmental space:** A private environment designed for honest reflection without pressure or criticism.

**Strengths:** Warm, non-clinical tone that makes daily check-ins feel approachable; Combines chat, journaling, voice and guided sessions in one app; Free to download with no credit card required; Journal entries with mood analysis turn fleeting thoughts into a lasting record

**Limitations:** Not a substitute for licensed therapy or crisis services; Best value features sit behind optional in-app purchases; Effectiveness depends heavily on how consistently you use it

[Profile (Markdown)](https://openaitools.app/tool/onsen.md)

## Solid Diary - AI Journal

Solid Diary is a privacy-first journaling app built by Solid Apps SRL for iOS, iPadOS, and macOS. The premise is simple: end your day with a moment of calm reflection, write freely, and let an optional AI analysis help you understand the thoughts and emotions behind what you wrote. It is deliberately a diary rather than a planner or task manager, so the experience stays focused on reflection.

Privacy is central to the product. Entries are encrypted with 256-bit encryption and can be locked behind biometrics, and the developer states that only the rightful owner can access and decrypt the data, with no advertisers or partners tracking users. Beyond writing, the app supports unlimited uploads of images, voice recordings, and sketches, rich text formatting, tagging, four themes, and a set of stats and achievements to keep the habit rewarding.

The AI layer turns a journal entry into a reflective second opinion: it identifies the emotions your writing conveys, explains why you might be feeling that way, and suggests ways to handle what is on your mind. Reviewers frequently describe it as a supportive, on-point companion for self-reflection. Pricing is a one-time purchase with no subscription, and buyers can unlock Solid Diary alone or all five Solid Apps with a single lifetime purchase. A new Evo app also uses AI features that were not offered by Solid Apps SRL before.

**Pricing & Plans:** Free to download with in-app purchases and no subscription. Each app, including Solid Diary, offers a 3-day free trial, after which you unlock either Solid Diary alone or the full Solid Apps suite with a single lifetime purchase purchased through the App Store.

- **Encrypted, Private Diary:** Every entry is encrypted with 256-bit encryption and only you can decrypt it, with an optional biometric lock on top.
- **AI Emotional Analysis:** Request an AI analysis that explains the emotions behind an entry, why you might feel that way, and practical suggestions.
- **Unlimited Media Uploads:** Attach unlimited images, voice recordings, and sketches to any entry, with no upload caps.
- **Formatting, Tags, and Themes:** Apply rich formatting, organize entries with tags, and choose from 4 themes to match your style.
- **Stats and Achievements:** Unlock achievements and stats as you build a consistent journaling habit over time.

**Strengths:** No subscription: one-time lifetime purchase via the App Store; 256-bit encryption plus biometric lock for genuinely private entries; AI analysis gives reflective insight and coping suggestions; Unlimited images, voice recordings, and sketches per entry

**Limitations:** Requires unlocked AI features to use the core analysis tool; basic writing itself is free but the value is gated; Biometric lock and encryption mean account recovery can be difficult if access is lost; Only for iOS, iPadOS, and macOS, with no Android or web version; AI analysis is a reflective aid, not professional mental-health support

[Profile (Markdown)](https://openaitools.app/tool/solid-diary-ai-journal.md)

## Frequently Asked Questions

### How do Onsen and Solid Diary - AI Journal compare in monthly traffic?

Onsen has 3,964 monthly visits, while Solid Diary - AI Journal has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Onsen has a month-over-month growth rate of +23.7%; Solid Diary - AI Journal has —.

### How does pricing compare?

Onsen: Freemium. Free to download and use with no credit card required; optional paid upgrades and premium experiences are offered in-app. Solid Diary - AI Journal: Paid. Free to download with in-app purchases and no subscription. Each app, including Solid Diary, offers a 3-day free trial, after which you unlock either Solid Diary alone or the full Solid Apps suite with a single lifetime purchase purchased through the App Store.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Headspace](https://openaitools.app/tool/headspace) | 1,686,204 | +4.3% | Free Trial, Paid | Science-backed meditation, sleep and mental health support in one app | [.md](https://openaitools.app/tool/headspace.md) |
| 2 | [Freudly](https://openaitools.app/tool/freudly-ai-therapist) | 792,360 | +66.6% | Freemium | Free psychological tests with an AI mental coach who explains your results | [.md](https://openaitools.app/tool/freudly-ai-therapist.md) |
| 3 | [Abby (AI Therapy)](https://openaitools.app/tool/ai-therapy) | 311,051 | +7.2% | Freemium | A 24/7 AI mental health companion that remembers your story | [.md](https://openaitools.app/tool/ai-therapy.md) |
| 4 | [Rosebud](https://openaitools.app/tool/rosebud-app) | 108,318 | -26.8% | Freemium, Free Trial | An AI journal that listens, remembers, and helps you grow | [.md](https://openaitools.app/tool/rosebud-app.md) |
| 5 | [Reflection](https://openaitools.app/tool/reflection) | 65,238 | -8.4% | Freemium, Free Trial | An AI journaling companion that listens, responds, and remembers your story | [.md](https://openaitools.app/tool/reflection.md) |
| 6 | [Woebot Health](https://openaitools.app/tool/woebot-health) | 40,625 | -43.6% | Contact for Pricing | Chat-based AI wellness support, built to make mental health care radically accessible. | [.md](https://openaitools.app/tool/woebot-health.md) |
| 7 | [Mindsera](https://openaitools.app/tool/mindsera) | 39,785 | -34.2% | Freemium | AI journal for mental wellbeing and sharper thinking | [.md](https://openaitools.app/tool/mindsera.md) |
| 8 | [Infiheal](https://openaitools.app/tool/infiheal) | 31,056 | -53.5% | Freemium | AI mental health companion and online therapy marketplace | [.md](https://openaitools.app/tool/infiheal.md) |
| 9 | [Free AI Therapy (TherapyWithAI)](https://openaitools.app/tool/free-ai-therapy) | 23,167 | -2.8% | Freemium | Talk to an AI therapist by text or voice, any time of day | [.md](https://openaitools.app/tool/free-ai-therapy.md) |
| 10 | [Kin AI](https://openaitools.app/tool/kin-ai) | 11,821 | -11.9% | Free | A private personal AI that remembers your context and coaches you forward | [.md](https://openaitools.app/tool/kin-ai.md) |

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Source: https://openaitools.app/compare/onsen-vs-solid-diary-ai-journal

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