# Solid Diary — 100% Private AI Diary > Private AI journaling app for self-reflection and emotional insight. (iPhone/iPad app by Solid Apps SRL.) - Source: https://appshunter.io/ios/app/solid-diary/id6448245802 (this page in markdown: same URL + `.md`) - Developer: [Solid Apps SRL](https://appshunter.io/developer/1653740418) - Category: Productivity - Price: Free with in-app purchases (on sale, was $3.99) - Rating: 4.96/5 from 27 App Store ratings · 22 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 42 MB - Languages: English - Released: 2023-08-21 - Data updated: 2026-06-11 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/solid-diary/id6448245802/reviews.md ## What is Solid Diary? No subscriptions - Buy once, keep forever End your day with a moment of calm reflection. Solid Diary is more than just a journal app - it could be your sanctuary. Dive deep into your thoughts, and with the unique AI analysis, reveal deeper insights into yourself and the complex world around us. - 100% private diary What you write about in Solid Diary is for your eyes only. This diary is designed with privacy in mind and this is why your data is encrypted and only you can access it. You can also lock your diary with a biometric lock. - AI analysis Keeping a diary is a great way to explore your thoughts and better understand your emotions. But when you need an extra opinion, you can ask for an AI analysis and get a deeper understanding of the meaning behind your writing. - Unlimited uploads You can upload as many images, voice recordings and sketches as you need - Formatting and tags You can apply various formatting options to each entry and stay organized with tags. - Themes Solid Diary supports 4 different themes so you can pick the one that suits your style most. - Stats and achievements To make keeping a diary even more fun, there are achievements and stats that you unlock on your journey. Are you ready to start keeping your diary? Solid Diary is a universal app available on iOS, iPadOS, and macOS You can choose to unlock just this app or all 5 Solid Apps with one purchase Terms of service: http://solidapps.co/terms.html Privacy policy: http://solidapps.co/privacy.html ## Key features - 100% private and encrypted diary - AI analysis for deeper insights - Unlimited image, voice, and sketch uploads - Formatting and tagging for organization - Customizable themes - Stats and achievements ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Unlock this app (lifetime) | $4.99 | one-time | | Unlock ALL 10 Solid Apps (lifetime) | $9.99 | one-time | ## Recent user reviews (10 of 22) All indexed reviews: https://appshunter.io/ios/app/solid-diary/id6448245802/reviews.md ### 5/5 — No. 1 *2026-01-16, version 2.35* The best app for keeping a secure diary ### 1/5 — Needs a lot of work *2025-11-25, version 2.35* Solid diary’s AI is asking me to share some information - but there is no way of communicating with it other than making an entry then hitting the AI button. It asks me to tell it things but there is no way to do it If I can’t reply - why does it ask me too? It suggests using browser tools, to copy text but there is no web based version of the app. It suggests disabling Mood analysis, but I can’t find a way to do it. It’s training on itself seems to be non existant. ### 5/5 — Great Journal/Diary App *2025-10-15, version 2.31* Solid Diary is just a great no-nonsense useful Journal/Diary App, and excellent value too. It has all the important tools you need for writing, imaging, audio input too, the AI is like a friend and an advisor, just so helpful, it's a real plus for the App. Well done developers. ### 5/5 — Great Journal/Diary App *2025-09-03, version 2.31* Solid Diary is just a great no-nonsense useful Journal/Diary App, and excellent value too. It has all the important tools you need for writing, imaging, audio input too, and the AI is just so helpful, it's a real plus for the App. Well done developers. ### 5/5 — I love this company *2025-08-22, version 2.31* I love all the app from this company but the journal is amazing! I am not a writer but I find it so easy to use and I can express myself in a way that feels natural! Days when I am having a tough time I will write as many enteries as I need! I love how simple and easy it is to use and that I can add pictures and other things so quickly and easily ### 2/5 — needs some work *2025-07-13, version 2.31* Not happy with the way it crops the photo. Should show the whole pic. Also the small changes for a better month should allow you to check the list off each day. Seems pointless otherwise! ### 4/5 — It does what it says and you only have to pay for it once *2025-04-04, version 2.30* I appreciate that you pay for it once, and it does not have the a monthly fee. It does exactly what it says, and the AI reflection is very helpful. It could be more personalized with design, and the prompts. But the core of what is needed is there. ### 5/5 — The Right App *2025-04-01, version 2.28* This Diary App is exactly what I need fr my journaling. It is easy to use and connects with my Mac, IPad and IPhone. ### 5/5 — Simply the best... *2024-10-17, version 2.27* ...and I have tried a lot of journaling apps. (First and foremost, I never thought I would give up pen and paper.) I love this app because it sticks to the purpose--to journal. It's not a planner or to do list. It is all about your thoughts and feelings. And, at least for me, the AI analysis is usually spot on. With Solid Diary, I have a personal therapist. lol They charge a VERY reasonable fee for the opportunty to use this wonderful app to reflect on your thoughts and who you are. And then you receive a very insightful analysis of your thoughts and advice for any problems you may be experiencing. I highly recommend it. ### 5/5 — Beautiful but concerns with privacy *2024-08-10, version 2.25* UPDATED THOUGHTS: Changed to five stars because the developer kindly addressed my concerns over security. Makes me feel much more comfortable. ORIGINAL REVIEW: It is a truly beautiful and easy to use application but the privacy policy is very vague. I wish there were better information about how user data is handled, other than a simple statement in the product description that user data is encrypted. Does that mean end to end encrypted or other? It's hard to feel comfortable with such little information available. ## Frequently asked questions about Solid Diary ### What does Solid Diary do? Solid Diary is a private journaling application that allows users to record their thoughts and reflections. It offers AI analysis to provide deeper insights into the user's writing and emotions. The app prioritizes privacy with encryption and biometric lock options. ### What are the key features of Solid Diary? Key features include 100% privacy with encryption and biometric locks, AI analysis for emotional and self-insight, unlimited uploads for images, voice recordings, and sketches, formatting and tagging for organization, customizable themes, and stats with achievements to encourage journaling. ### How much does Solid Diary cost? Solid Diary operates on a one-time purchase model, meaning you buy it once and keep it forever. Users can choose to unlock just this app or a bundle of all five Solid Apps with a single purchase. ### What devices is Solid Diary compatible with? Solid Diary is a universal app, meaning it is available on iOS, iPadOS, and macOS devices. This allows users to maintain their journal across different Apple platforms. ### What are common use cases for Solid Diary? Common use cases include daily reflection at the end of the day, exploring thoughts and understanding emotions with AI assistance, documenting memories with multimedia uploads, and organizing personal insights through tags and formatting. ## Version history (last 5 releases) ### 3.3 — 2026-05-26 You can now try each of the solid apps for free for 3 days, then either unlock one app or all of them with a single lifetime purchase. If you purchased the app before, you will retain lifetime access. If you need any help, please reach out at hello@solidapps.co This update fixes several minor issues. ### 3.1 — 2026-05-23 You can now try each of the solid apps for free for 3 days, then either unlock one app or all of them with a single lifetime purchase. If you purchased the app before, you will retain lifetime access. If you need any help, please reach out at hello@solidapps.co This update fixes several minor issues. ### 2.37 — 2026-02-24 The AI analysis feature now supports Arabic ### 2.36 — 2026-02-23 This update fixes an issue with the AI personalization ### 2.35 — 2025-11-24 This update brings several tweaks related to the AI ## Apps similar to Solid Diary | App | Rating | Price | Category | | --- | --- | --- | --- | | [Daily Diary - Timeline Journal](https://appshunter.io/ios/app/daily-diary-timeline-journal/id1499836451) | 4.8 (27) | Free | Productivity | | [Local Brain](https://appshunter.io/ios/app/local-brain/id6476066730) | 1.3 (6) | Free | Productivity | | [Lanyard: Hybrid Work Schedule](https://appshunter.io/ios/app/lanyard-hybrid-work-schedule/id6455731792) | 4.8 (30) | $1.99 | Productivity | | [uFocus](https://appshunter.io/ios/app/ufocus/id583995251) | 4.7 (34) | Free | Productivity | | [Bookmark Manager: Bookmarkify](https://appshunter.io/ios/app/bookmark-manager-bookmarkify/id1614129680) | 4.3 (20) | Free | Productivity | | [Kyugo](https://appshunter.io/ios/app/kyugo/id6449841300) | 3.7 (9) | Free | Productivity | ## More apps by Solid Apps SRL - [Grammar Fix](https://appshunter.io/ios/app/grammar-fix/id1457909769) - [Solid Habits](https://appshunter.io/ios/app/solid-habits/id1661550831) - [Solid Focus Timer](https://appshunter.io/ios/app/solid-focus-timer/id6444367413) - [Solid Calendar](https://appshunter.io/ios/app/solid-calendar/id6448245807) - [Solid Notes](https://appshunter.io/ios/app/solid-notes/id6448245914) All apps by Solid Apps SRL: https://appshunter.io/developer/1653740418 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*