Principal Task vs Flows
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Principal Task
This app helps you manage tasks by tracking your completion rate against new tasks created. It offers a unique 'Task Velocity' score to show if you're keeping up with your workload. Organize with folders, contexts, and priorities, with advanced features available through a premium subscription.
- Task Velocity score
- GTD-native structure
- Due dates and repeating tasks
- Markdown support
- Kanban boards
- Private templates
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Track your Task Velocity — the ratio of tasks you complete against the ones you create, updated every day. See at a glance whether you're ahead or falling behind, not just what's on your list. Principal Task is a GTD-native task manager built for people who've outgrown to-do apps. Folders, contexts, priorities, statuses, and unlimited nested subtasks — organized the way real work actually happens. TASK VELOCITY Your 30-day completed-vs-created ratio, shown as a simple multiplier. Free members see their current score. Premium unlocks the full history, filterable by folder, context, priority, and status. SYSTEM HEALTH A live verdict — Healthy, Strained, or Overloaded — so you know where things stand today, separate from where they're heading. BUILT FOR GTD Folders and sub-folders, contexts, priorities, statuses, and stars. Subtasks nest as deep as you need, with independent completion — no forced parent-child status. KANBAN, HEATMAP, TEMPLATES See your work as a board. Watch your activity over time. Turn repeatable processes into templates you can apply in one tap. BUILT FOR AI ASSISTANTS Principal Task connects to AI assistants over MCP — read and write your tasks, subtasks, and folders directly from the assistant you already use. SHARE WITHOUT FRICTION Share a task list with a four-word link. No account required to view. You control how long it stays open. Free, no credit card. Premium is about $3/month or $24/year, and it doesn't limit how much you can do — it unlocks Task Velocity history, Kanban, the Activity Heatmap, and private templates. Principal Task. Software that gets out of the way. Terms of Use: https://principaltask.com/terms
Flows
Organize your day with intelligent scheduling and task management. Capture notes, set time estimates, and let the app automatically arrange your schedule. Stay focused with a built-in Pomodoro timer and track your progress with daily streaks.
- Auto-scheduling of tasks
- Rich-text note editor
- Smart tag suggestions
- Integrated Pomodoro timer
- Daily streak tracking
- Global search and filtering
- Customizable themes and fonts
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PLAN YOUR DAY IN MINUTES Add tasks, set time estimates and difficulty levels, then let Flows arrange your schedule. Let Auto-Schedule place them intelligently; hard tasks go in the morning, easy ones fill the gaps. View your day, week, or month at a glance. NOTES THAT WORK WITH YOUR TASKS Capture ideas, meeting notes, and to-dos with a rich-text editor organized into folders. Flows can detect tasks hiding in your notes and turn them into real, schedulable items, no copy-pasting required. SMART TAGS & AUTO-TAGGING Create tags with descriptions and keywords, and Flows will suggest them automatically as you add tasks. Organize your work by project, priority, or whatever makes sense for your life. STAY IN THE ZONE Start a Pomodoro timer for any task with customizable work and break intervals (5–90 minutes). Pick from ambient sounds like rain, lo-fi beats, or white noise. When the timer ends, your progress is logged automatically. BUILD A STREAK YOU'RE PROUD OF Complete your daily plan to keep your streak alive. Flows understands that rest days happen; your streak won't break over a weekend. Check your weekly recap to see how your focus time, completion rate, and productivity are trending. SEARCH EVERYTHING Find any task or note instantly with global search. Filter by type, date range, or completion status. Sort by relevance, date, or name. MAKE IT YOURS Choose from 16+ handcrafted color themes, switch between dark and light mode, and pick a display font. Five notification personalities, from gentle encouragement to delightfully unhinged commentary, keep things interesting. FLOWS PRO (30-Day Free Trial) Unlock the full experience: • Auto-Schedule — Intelligently fills your timeline based on difficulty, priority, and your available hours. Hard tasks land in the morning. Dreaded ones go first. • Focus Forecast — See how your focus time trends across days and weeks. Get a Monday morning preview of what's ahead. • Calendar Sync — Pull events from Google Calendar or Apple Calendar so your schedule and your plan live side by side. • Notion Sync — Connect your Notion workspace and keep everything in one place. • Slack Integration — Share your focus status with your team automatically. • Cloud Sync — Your tasks, notes, and streaks stay in sync across all your devices. • Unlimited Tags — Create as many tags as you need. • All Themes — Access every color theme and future additions. Terms & Conditions: https://flowspomo.com/terms.html Privacy Policy: https://flowspomo.com/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: Flows at weekly against Principal Task's every 3 months. Flows also leads on ratings volume (7 vs 1). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Principal Task sells 2 in-app purchases, starting at $3.99 per month and Flows sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Principal Task against 4.9 for Flows. That said, the two scores are not equally well evidenced: Flows has 7 ratings behind it against 1, so its average is the more settled of the two.
Principal Task ships an update every 3 months, Flows weekly. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.
| Parameter | Principal Task | Flows |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, Mac |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 32 MB | 49 MB |
| Age rating | 4+ | 9+ |
| Developer | Zechariah Schwenk | HUNTER WESTLEY BOLTON |
Customer experience
Principal Task
Flows
In-app purchases
Principal Task
- Monthly Subscription$3.991 Month
- Annual Subscription$29.991 Year
Flows
- Flows Pro — Monthly1 Month trial$5.991 Month
- Flows Pro — Annual1 Month trial$49.991 Year









