Foqos vs Estratum
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Foqos
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An on-device AI workspace for your ideas. Foqos brings powerful language models directly to your iPhone, iPad and Mac. Chat with your notes, understand images, improve your writing and connect ideasβwith local AI processing on your device. Download your models once and use local AI offline. Web research and iCloud syncing require an internet connection. β’ Ask your notes Have a conversation with your notes and documents. Find answers, summarize information and discover connections across your library. β’ Give your AI vision Ask questions about images, describe what is visible and extract text from photosβall with on-device image understanding. β’ Write with your local language model Develop ideas, rewrite passages, suggest headings and turn rough notes into structured summaries. Your AI tools live alongside your writing. β’ Turn ideas into visual thinking Generate mind maps from your notes, explore your knowledge map and organize related ideas on Canvas. β’ Transcribe on device Turn recordings and imported audio into text with Talk Tiny or Talk Base. Choose automatic language detection or select the spoken language. Supported languages include English, Arabic, Chinese, French, German, Italian, Japanese, Korean, Portuguese and Spanish. β’ Listen and follow along Read your notes aloud, follow highlighted words during playback and export spoken audio. β’ A complete writing workspace Work with Markdown, tables, LaTeX equations and PlantUML diagrams. Import PDFs, paste images and documents, sketch across multiple pages and sync your library with iCloud. Choose white, dark or sepia and personalize your fonts. Start free with 20 AI actions, 3 speech generations and 5 minutes of audio-file transcription daily. Live transcription includes 60 seconds every 2 hours. Basic notes, drawing, model downloads and saved results remain free. Foqos Pro unlocks unlimited AI actions, transcription and speech generation, plus advanced exports, portable backups and unlimited folders and images per note. Pro subscriptions renew monthly or yearly. Manage or cancel your subscription in your App Store account settings. Privacy Policy: https://foqos.netlify.app/#privacy Terms of Service: https://foqos.netlify.app/#terms foqos isn't just a note-taking app. Itβs a tool for better thinking.
Estratum
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LESS NOISE IN YOUR HEAD. MORE CLARITY IN YOUR DAY. How much energy do you spend trying not to forget an appointment, an idea, a task or a small detail you may need later? Estratum reduces that mental load. Write down what is on your mind and get back to your day: it saves it, organizes it and helps you find it when it matters again. CAPTURE BEFORE IT SLIPS AWAY Write, dictate or photograph a printed appointment, a receipt, a whiteboard or a set of instructions. No folders, categories or tags to prepare. Organization happens afterwards. AI DOES THE INVISIBLE WORK Estratum recognizes notes, tasks, appointments, deadlines, expenses, ideas and memories. You capture the moment; the app brings order to it. Search by meaning retrieves the context even when you do not repeat the exact words you wrote. Ask βWhat did we decide about Atlas?β or βWhat do I have tomorrow?β and open the notes behind the answer. CAPTURE WITH SIRI, TOO Save a note with Siri or Shortcuts without finding the app first. Text is saved before confirmation and organized when Estratum opens. Voice and dictation depend on Apple. YOUR DAY, IN ONE THREAD See appointments, tasks and dated items in a timeline centered on today. Move into the past or future and return to today when you need to. MORE ROOM, ON IPAD AND IPHONE DUO TOO On iPad and an open iPhone Duo, keep your timeline in view while writing. Notes shows list and detail together; Calendar pairs the month with your agenda. Close Duo to return to one column. When partially folded, content stays clear of the hinge. Draft text survives display changes. YOUR MEMORY CAN LIVE ON YOUR DEVICE With a local engine, Estratum organizes, searches and answers on-device. After the initial download it can work without internet: your notes are not sent to a server, no account is required, and there are no token or query fees. Local AI depends on device compatibility and memory. Below 6 GB RAM, Qwen is not offered; Apple's model appears only when available. Without a compatible local engine, you need to configure your own external-provider API key, subject to that provider's fees. If you prefer an external provider, connect your own OpenAI or OpenRouter key. The app warns you before sending the required context to the provider you choose. On compatible systems and devices, Apple PCC is another optional cloud engine: it requires consent and internet, may send text and context to Apple, and has a quota separate from Pro. ESTRATUM REMEMBERS FOR YOU. PRO NOTICES, TOO. Free includes the same AI, every engine, unlimited saves, basic reminders and 7 questions per week. Estratum Pro adds unlimited questions, Knowledge Map, Diary, reminders that choose a useful lead time, and automatic Home/Work switching. Try it free for 14 days, then unlock it with one purchaseβno subscription or recurring fee. Designed for people with ADHD, neurodivergent minds and anyone living with a high mental load. Estratum does not diagnose or treat any condition. YOUR LIFE IS YOURS The main database lives on your device. With Pro, Apple Calendar integration is optional and writes to a separate calendar. No ads. No selling your data. Write it down. Estratum takes care of the order.
Screenshots
Verdict
The clearest difference is update cadence: Estratum at every 10 days against Foqos's every 3 months. Foqos's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Foqos sells 1 one-off in-app purchase and Estratum sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Foqos ships an update every 3 months, Estratum every 10 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Foqos | Estratum |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 10 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod, Mac β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 18.0 |
| Further details β not scored | ||
| Size | 135 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeffrey Asante | LyXeoN |
In-app purchases
Foqos
- Foqos Pro (Lifetime)$14.99
Estratum
- 14-day TrialFree
- Estratum Pro β Lifetime$17.99









