Comparison

Task Flow vs Estratum

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Task Flow

Organize tasks, build habits, and achieve goals with a beautiful, intuitive interface. Features smart task management, powerful notifications, and customizable themes. Your data stays private on your device.

Highlights
  • Repeating tasks for habit building
  • Unlimited custom color themes
  • Advanced productivity analytics
  • Privacy-first, data stays on device
  • Smart notifications and reminders
  • Customizable categories and priorities
Features
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Take Control of Your Day with Task Flow Task Flow helps you manage tasks, build lasting habits, and achieve your goals all in one beautiful, intuitive interface. ORGANIZE WITH CATEGORIES Create custom categories for every area of your life: Work, Personal, Shopping, Fitness, and more. Each category keeps your tasks organized and easy to find, so you can focus on what matters most. SMART TASK MANAGEMENT • Create tasks with due dates, priorities, and detailed descriptions • Set custom reminders so you never miss a deadline • Five priority levels with color-coded indicators (Low to Urgent) • Search across all categories and tasks instantly • Mark tasks complete with satisfying haptic feedback POWERFUL NOTIFICATIONS Stay on track with intelligent reminders. Choose from multiple notification options from minutes to weeks before your task is due. Task Flow automatically filters reminder options based on your due date, so you'll only see times that make sense. BUILD LASTING HABITS Turn one-time tasks into powerful habits with repeating tasks. Set tasks to repeat daily, weekly, on specific days, or create custom schedules that work for you. When you complete a repeating task, Task Flow automatically creates the next occurrence keeping your momentum going. PERSONALIZE YOUR EXPERIENCE Make Task Flow truly yours with customizable color themes. Choose from a beautiful preset palette or unlock unlimited custom colors to match your personal style. FEATURES • Repeating Tasks - Build habits with automatic task recreation • Unlimited Custom Colors - Full color picker for perfect personalization • Advanced Analytics - Track productivity trends and insights • Privacy-First - All your data stays on your device • categories and tasks • Custom color themes (preset palette) • Smart notifications and reminders • Priority levels and due dates • Search and organization tools • Beautiful light and dark modes DESIGNED FOR YOU Task Flow features a clean, modern interface that feels natural on iOS. Every interaction is thoughtfully designed from the floating action button for quick task creation to the smooth animations that make organizing your day a pleasure. YOUR PRODUCTIVITY, YOUR WAY Whether you're managing work projects, planning personal goals, tracking shopping lists, or building new habits, Task Flow adapts to how you work. Create as many categories as you need, organize tasks your way, and customize the experience to fit your life. PRIVACY FOCUSED Your tasks and data stay securely on your device. We don't collect, share, or sell your personal information ever. Terms of Use (EULA): https://isaacf03.github.io/termsofuse/ Privacy Policy : https://isaacf03.github.io/taskflow-privacy/

About

Estratum

Features
Read full description

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 “What did we decide about Atlas?” or “What do I have tomorrow?” 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 purchase—no 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

Task Flow4 screens
Estratum4 screens

Verdict

The call

Task Flow and Estratum are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Task Flow sells 3 in-app purchases, starting at $1.99 per month and Estratum sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Task Flow ships an update weekly, Estratum every 10 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

ScorecardNo meaningful differences
Task Flow versus Estratum: the parameters behind the verdict, then further details
ParameterTask FlowEstratum
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better18.0
Further details — not scored
Size19 MB29 MB
Age rating4+4+
DeveloperIsaac Fajardo GregorioLyXeoN

In-app purchases

3 purchases

Task Flow

Subscriptions2
  • Monthly7 Days trial$1.991 Month
  • Annual7 Days trial$11.991 Year
One-time1
  • Life Time Premium$19.99
2 purchases

Estratum

One-time2
  • 14-day TrialFree
  • Estratum Pro — Lifetime$17.99

Questions

Is Task Flow free?
Task Flow is free to download, with in-app purchases available.
Is Estratum free?
Estratum is free to download, with in-app purchases available.
Do Task Flow or Estratum have ads?
Neither Task Flow nor Estratum shows ads.
Which is updated more often, Task Flow or Estratum?
Task Flow ships an update weekly, and Estratum every 10 days. Most recently, Task Flow was updated on October 31, 2026 and Estratum on November 6, 2026.

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