Comparison

Principal Task vs iLiner Note

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

Head to head
About

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.

Highlights
  • Task Velocity score
  • GTD-native structure
  • Due dates and repeating tasks
  • Markdown support
  • Kanban boards
  • Private templates
Features
Read full description

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

About

iLiner Note

Features
Read full description

iLiner is a simple note taking app to organize just about anything. Add new entries by pressing the + icon or swipe left to delete an existing note (press the iLiner back button to view). Insert 'to do' tasks using the task menu in the top right corner of this display. Dictate by pressing the iOS keyboard mic icon. Use these voice commands to paginate your entry: new line, period, comma, quote, question mark. Drag and drop notes to change their hierarchical order in the note list view (press the iLiner back button to view). Press on a note title and then vertically drag a note up or down to a new location.To move individual note items in the note detail view (what you are now reading), first select the text to be moved and then firmly press down until the selection changes to a blue rectangle and then drag the selection to a new location.Editing: Double tap to edit a note or add new text. Triple tap to move the cursor to a new location. Single tap on a url to open a link. Single tap on a phone number to dial that number.Icon palette functions (below) from left to right: set list display icon, undo, redo, import image, speak, set display font and close palette.

Screenshots

Principal Task4 screens
iLiner Note1 screens

Verdict

The call

The clearest difference is in-app purchases: iLiner Note at none against Principal Task's 2. On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Principal Task sells 2 in-app purchases, starting at $3.99 per month. iLiner Note asks for nothing beyond the download.

Scorecard1 real difference · 8 level
Principal Task versus iLiner Note: the parameters behind the verdict, then further details
ParameterPrincipal TaskiLiner Note
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.2
Further details — not scored
Size32 MB1 MB
Age rating4+4+
DeveloperZechariah SchwenkMercury Software Japan Inc.

In-app purchases

2 purchases

Principal Task

Subscriptions2
  • Monthly Subscription$3.991 Month
  • Annual Subscription$29.991 Year
None

iLiner Note

No in-app purchases

Questions

Is Principal Task free?
Principal Task is free to download, with in-app purchases available.
Is iLiner Note free?
iLiner Note is free to download, with no in-app purchases.
Do Principal Task or iLiner Note have ads?
Neither Principal Task nor iLiner Note shows ads.

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