# Eristotle: Reflective AI Diary — Guided Journal, Insight & Chat > AI-powered journaling app for insights, pattern detection, and conversational support. (iPhone/iPad app by Yokii Studio.) - Source: https://appshunter.io/ios/app/eristotle-reflective-ai-diary/id6756290406 (this page in markdown: same URL + `.md`) - Developer: [Yokii Studio](https://appshunter.io/developer/1852921533) - Category: Lifestyle, Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 12+ - Requires: iOS 26.2 · 76 MB - Languages: American English - Released: 2025-12-18 - Data updated: 2026-06-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/eristotle-reflective-ai-diary/id6756290406/reviews.md ## What is Eristotle? Eristotle transforms your scattered thoughts and memories into a powerful, AI-indexed knowledge base. Every entry you create is automatically analyzed, categorized, and connected, giving you instant access to your emotional history and unlocking intelligent features powered by deep contextual understanding. EVERY JOURNAL HAS INSIGHTS Eristotle doesn't just store your entries, like a traditional notebook—it builds a comprehensive, searchable database of your inner thoughts. CONTEXT-AWARE AI FEATURES Your indexed journal becomes the foundation for intelligent insights. Pattern Detection: AI identifies recurring themes, triggers, and growth areas across your entire history Smart Recommendations: Get personalized prompts based on your writing patterns and emotional trends Follow-Up Notifications: Contextual check-ins based on text chats with AI Semantic Search: Asking "when was I anxious about work?" pulls up the most relevant entries, ready to view Smart Reflections: AI connects dots across months or years of entries to reveal insights you'd never see manually CONVERSATIONAL AI COMPANION Talk through your thoughts—your AI knows your history. Text Chat: Have meaningful conversations with an AI that understands your emotional patterns and can search your entire journal history Voice Chat: Real-time voice conversations powered by ElevenLabs—talk naturally and hear personalized responses Journal-Aware Responses: Your AI companion can search and reference specific entries during conversations, providing context you'd forgotten Save to Journal: Transform meaningful conversations into journal entries with a single tap Personalized Memory: Your AI remembers your name, recognizes patterns, and references your growth over time Follow-Up Check-ins: Receive thoughtful notifications based on topics discussed in your conversations MULTIPLE WAYS TO JOURNAL Express yourself however feels natural—Eristotle indexes it all. Manual & Quick Entries: Traditional journaling and Writing Prompts Text & Voice Chat: AI conversations can be made into entries Voice Memos: Record your thoughts and get automatic transcription Reflections: Entires made from Smart Recommendations Scribbles: Write entries with Apple Pencil on iPad VISUAL INTELLIGENCE See patterns emerge from your indexed data. Emotion Trends: Visualize how feelings shift across days, weeks, or months Intensity Heatmaps: Identify your most challenging and rewarding periods Weekly & Monthly Summaries: AI synthesizes your indexed entries into actionable insights Year in Review: Comprehensive analysis of your emotional journey PRIVACY-FIRST - OFFLINE ENCRYPTION Your searchable database stays yours—always encrypted, always secure. End-to-End Encryption: All data is encrypted on your device Local-First Storage: Your journal works offline and your data remains under your control Bring Your Own Key (BYOK): Use your own API keys from OpenAI, Anthropic, Google Gemini, Voyage AI, and ElevenLabs Optional iCloud Sync: Sync your journal across Apple devices Complete Export: Take your entire indexed database with you (PDF, Markdown, JSON, Plain Text) Encrypted Export: Create an encrypted file of your journal and restore any time, even offline. A perfect failsafe in case you ever lose access to your iCloud account. FLEXIBLE AI INTEGRATION Choose your intelligence, or choose none. Apple Intelligence: On-device offline AI for maximum privacy Cloud AI Providers: GPT, Claude, or Gemini for advanced analysis BYOK Control: Use your own keys for complete data ownership Options: You can control which AI features you want. All, some, or none. Start building a searchable knowledge base of your inner thoughts. Make writing about your life easy, and learning about yourself effortless. Privacy Policy: https://eristotle.app/privacy/ Terms of Use: https://eristotle.app/terms/ Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - AI-indexed knowledge base - Pattern detection and smart recommendations - Conversational AI companion (text & voice) - Semantic search for entries - Visual emotion trends and summaries - Offline encryption and local-first storage - BYOK for AI models ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | BYOK | $3.00 | per month | | Premium | $5.00 | per month | | Premium 12-Months | $50.00 | per year | | BYOK Yearly | $30.00 | per year | ## Frequently asked questions about Eristotle ### What is Eristotle? Eristotle is an AI-powered journaling app that transforms your thoughts into an indexed knowledge base. It offers features like pattern detection, smart recommendations, and a conversational AI companion to help you gain insights into your emotional history and growth. ### How does Eristotle use AI? Eristotle uses AI to analyze your journal entries, identify recurring themes and emotional patterns, provide personalized prompts, and enable semantic search. The AI companion can also reference your journal history in conversations. ### Can I use Eristotle offline? Yes, Eristotle is designed with local-first storage and end-to-end encryption, meaning your journal works offline and your data remains under your control. ### What are the subscription options for Eristotle? Eristotle offers both monthly and yearly subscription plans, including 'Premium' and 'BYOK' (Bring Your Own Key) options. Both offer a 14-day free trial. ### Does Eristotle have ads? No, Eristotle does not contain advertisements. The app is free to download and offers optional in-app purchases and subscription plans for enhanced features. ### What devices does Eristotle support? Eristotle is available on iPhone and iPad, allowing users to journal and access their insights across multiple Apple devices. ### How often is Eristotle updated? The latest version of Eristotle is 2.3, which was last updated on February 13, 2026. Updates typically bring new features, performance improvements, and bug fixes. ### What is the age rating for Eristotle? Eristotle has an age rating of 12+, making it suitable for teenagers and adults looking for a tool to understand their thoughts and emotions. ## Version history (last 4 releases) ### 2.3 — 2026-02-13 Jump Right In Sign-In is no longer required so you can jump right into journaling. Pretty Simple New Glass versions of each theme: Primarily White in Light Mode, Black in Dark mode with themed accents. Mac Catalyst Support All features available on Mac. Discover Books & Podcasts Get personalized book, podcast, and article recommendations based on your journal patterns. Find them in Trends → Discover. OpenRouter BYOK users can now use an OpenRouter API key to access multiple AI providers and models. Enjoy consolidated billing and usage with all the freedom of choice and just one API key. Voice Journaling Improvements Need to stop during a recording session? Save your voice memo as draft and come back to it later. Replay what you already recorded, pick up right where you left off. Automatic Agent Setup We put Voice Chat in your hands to protect your privacy. Now we set up your agent automatically so you can start chatting with less complexity. Making Eristotle Easy to Try Out Import from Day One (JSON and TXT/Markdown).  Eristotle provides bulk AI Analysis for all imported entries. Added Features for BYOK API token usage tracking and cost estimation for BYOK users. Privacy Updates To protect user privacy, Premium users can now only access Voice Chat using their own ElevenLabs API key and Agent ID (BYOK Guide: https://eristotle.app/guides/byok-setup/). Data Recovery Added encrypted backups for offline data recovery. Use this to backup your data, especially if you choose not to use iCloud or in case you lose access to your iCloud account. Bug fixes & UI/UX improvements ### 2.0 — 2026-01-08 What's New in Eristotle Sign in with Apple Quickly and securely sign in using your Apple ID. Your privacy is protected with Apple's built-in security features. Date Markers in Chat Conversations are now organized with clear date separators showing "Today", "Yesterday", or the specific date—making it easier to find past messages. Smarter Insights We've upgraded our AI to better understand connections between your journal entries, delivering more personalized and meaningful reflections. Chat Style Preference New! Choose how detailed you want Eris or Talen's responses to be. Find this in Settings under "Chat Style." Diagnostics for Premium Users Premium subscribers now have access to diagnostic tools to monitor and repair smart search features. More Reliable Voice Chat Saving Fixed an issue where audio recordings weren't always saved when creating journal entries from voice conversations. Apple Pencil Handwriting Write journal entries naturally with Apple Pencil. Double-tap to switch between pen and eraser, then save as handwritten or convert to text. Polish & Performance Improved keyboard behavior across the app Enhanced reliability when scheduling check-in reminders Thank you for journaling with Eristotle! Your feedback helps us improve. ### 1.2 — 2025-12-23 Improved Smart Search Feature: Now you can ask a question in the smart search bar. AI will find the top 5 most relevant entries, answer your question using their context, and list them as sources. Available to all users. Added Gemini 3 Flash and OpenAI GPT-5.2 to model options for Bring Your Own Key users. We also optimized all three AI service to provide consistent follow-up scheduling during text chats. Apple Intelligence models have a context window (4096 tokens per language model session). To accommodate this, we optimized how this model processes long-form text to reduce parsing errors when attempting to "Save as Journal entry". Enhanced UX to provide reliable user feedback when saving normal journal entries and drafts. iCloud Sync & Backup has been updated to provide stronger Privacy & Security for user data. ### 1.1 — 2025-12-19 No release notes. --- *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 2026-06-01.*