Comparison

How Deep Is It? vs Quadrant Task Manager

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

Head to head
About

How Deep Is It?

Explore physics concepts hands-on with this app. It uses your device's accelerometer to demonstrate falling body equations, allowing you to visualize and hear the distance traveled. Experience classic physics principles in an interactive way.

Highlights
  • Illustrates falling body equations
  • Uses device accelerometer
  • Large text distance display
  • Audio feedback for distance
  • Ad-free experience
Features
Read full description

Physics AND fun! This app helps illustrate one of the most common falling body equations with your very own accelerometer-enabled device. Experience for yourself, in a hands-on way, how far your device has traveled using the classic physics equation: d = ½gt² Features: • See the distance with large text display • Hear the distance with audio feedback • Still ad-free as always!

About

Quadrant Task Manager

Features
Read full description

uadrant Task Manager - Focus on What Truly Matters Transform how you manage tasks with the proven Eisenhower Matrix method. This powerful productivity app helps you organize tasks into four quadrants based on urgency and importance, ensuring you always focus on what truly drives results. Key Features: Smart Task Organization - Visual four-quadrant interface (Urgent/Important matrix) - Drag-and-drop task management - Clear priority visualization - Instant task categorization Built-in Focus Timer - 25-minute focus sessions with 5-minute breaks - Customizable timer settings - Audio notifications - Link focus sessions to specific tasks Comprehensive Analytics - Track daily, weekly, and monthly completion rates - Visualize time spent in each quadrant - Monitor focus session statistics - Identify productivity patterns and trends Multi-Language Support - Available in 7 languages: English, Traditional Chinese, Simplified Chinese, Japanese, Korean, Spanish, and French - Seamless language switching Reliable Data Storage - Local SQLite database for privacy and security - Works offline - no internet required - Fast and responsive performance - Your data stays on your device Clean, Intuitive Design - Modern, distraction-free interface - Dark mode support - Smooth animations - Optimized for one-handed use Why Quadrant Task Manager? Stop drowning in endless to-do lists. The Eisenhower Matrix helps you distinguish between what's truly important and what just seems urgent. By focusing on Quadrant 2 (Important but Not Urgent) tasks, you'll make real progress on your goals instead of just putting out fires. Perfect for: - Professionals managing multiple projects - Students balancing coursework and activities - Entrepreneurs prioritizing business growth - Anyone seeking better work-life balance The Eisenhower Principle: "What is important is seldom urgent, and what is urgent is seldom important." Download now and discover how the Eisenhower Matrix can help you achieve your goals. Free to use with no ads or subscriptions required. Take control of your time. Focus on what matters. Get things done.

Screenshots

How Deep Is It?1 screens
Quadrant Task Manager4 screens

Verdict

The call

The clearest difference is ads: How Deep Is It? at none against Quadrant Task Manager's shown. How Deep Is It? also leads on iOS requirement (7.0 vs 15.0). Quadrant Task Manager's advantage is update cadence (every 6 days vs every 18 months). On price, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

How Deep Is It? ships an update every 18 months, Quadrant Task Manager every 6 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
How Deep Is It? versus Quadrant Task Manager: the parameters behind the verdict, then further details
ParameterHow Deep Is It?Quadrant Task Manager
PriceFreeFree
Rating4.1 (13 ratings) — better—
Positive reviews57.1% of reviews—
Number of ratings13 — better—
Update frequencyEvery 18 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.0 — better15.0
Further details — not scored
Size15 MB20 MB
Age rating4+4+
DeveloperTom SoderlingZhegang Xu

In-app purchases

None

How Deep Is It?

No in-app purchases

None

Quadrant Task Manager

No in-app purchases

Questions

Is How Deep Is It? free?
How Deep Is It? is free to download, with no in-app purchases.
Is Quadrant Task Manager free?
Quadrant Task Manager is free to download, with no in-app purchases.
Do How Deep Is It? or Quadrant Task Manager have ads?
Quadrant Task Manager shows ads; How Deep Is It? does not.
Which is updated more often, How Deep Is It? or Quadrant Task Manager?
How Deep Is It? ships an update every 18 months, and Quadrant Task Manager every 6 days. Most recently, How Deep Is It? was updated on October 4, 2026 and Quadrant Task Manager on October 5, 2026.

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