Estratum vs All Dai
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
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.
All Dai
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All Dai is a calm, private morning brief. Open it once and you know what your day holds: what's on your calendar, what's due, how you slept and how today is going, and what's happening in the world, all on one page, written for you on your iPhone. FREE, WITH NO ACCOUNT - Your daily brief, summarized on-device with Apple Intelligence - Calendar: today's events, busy and free at a glance, and your longest free stretch - Reminders: due-today and overdue. Check them off right on the page, or tap + to add one - Health: yesterday's full day or today so far, with Activity rings, steps, water, workouts and last night's sleep - Bible Verse of the Dai, Word of the Dai and a little motivation each morning - Headlines from the news feeds you choose, with no algorithmic feed - A Calendar widget for your Home Screen ALL DAI PLUS (SUBSCRIPTION REQUIRED) The following features need an active All Dai Plus subscription: - Weather from Apple Weather: a one-line summary of the day, current conditions, the hourly curve, feels-like, wind, rain, UV, and sunrise and sunset - Crypto prices: up to 4 coins from the top 200 with the 24-hour change and a one-line overview. Data provided by CoinMarketCap.com. For information only, not financial advice - Every widget size, with the items you choose in each slot, plus Lock Screen widgets - Binder themes: eight more covers in leather, canvas, linen, composition and kraft, each with matching pages for Light and Dark YOUR DAY, SUMMARIZED ON-DEVICE Apple Intelligence reads your schedule and writes a short, plain-language summary: where the day is packed, which meetings overlap, and when you have room to breathe. On a light day you get a lighter note. It's all generated on your device. BEAUTIFUL ON FOLDABLES AND iPAD On larger and foldable screens, All Dai opens like a two-page journal: your personal day on the left and the news on the right. PRIVATE BY DESIGN - A short welcome explains each permission before iOS asks, and you can skip any of them - No account, no sign-up - No ads, no tracking, no analytics - Your calendar, reminders and health data stay on your device ALL DAI PLUS SUBSCRIPTION All Dai Plus is an optional auto-renewable subscription, billed monthly or yearly. The price is shown in the app before you subscribe. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it's cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in your Apple Account settings at any time after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://implicitli.com/privacy-policy.html
Screenshots
Verdict
The clearest difference is iOS requirement: Estratum at 18.0 against All Dai's 27.0. On price, update cadence, 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. Estratum sells 2 one-off in-app purchases and All Dai sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Estratum ships an update every 10 days, All Dai weekly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.
| Parameter | Estratum | All Dai |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Weekly β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 β better | 27.0 |
| Further details β not scored | ||
| Size | 29 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | LyXeoN | implicitli, LLC |
In-app purchases
Estratum
- 14-day TrialFree
- Estratum Pro β Lifetime$17.99
All Dai
- All Dai Plus (Monthly)$0.991 Month
- All Dai Plus (Yearly)$7.991 Year









