Comparison

Derang vs Greatness OS

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

Head to head
About

Derang

This app guides you through mindfulness meditation to help you stay present and reduce worries about the past or future. Regular practice enhances your ability to pause between stimuli and responses.

Highlights
  • Mindfulness meditation guidance
  • Develop present moment awareness
  • Reduce past regrets
  • Lessen future worries
  • Practice pausing between stimuli and response
Features
Read full description

اپلیکیشن درنگ ذهن‌آگاهی را به شما آموزش می‌دهد با تمرین مرتب مدیتیشن ذهن‌آگاهی ذهن شما توانایی این را پیدا می‌کند که بیشتر تو لحظه‌ی حال حضور داشته باشد و کمتر غرق در افسوس گذشته یا نگرانی آینده باشد. Derang application helps you start your mindfulness meditation practice. Derang in Persian language means pause. By practicing mindfulness, we learn to appreciate a pause between any stimuli and our response to it.

About

Greatness OS

Unlock your mental potential with this comprehensive performance system. It offers interactive training, daily challenges, and tools to build confidence, focus, and emotional control. Designed for athletes, leaders, and high achievers, it helps you perform under pressure and achieve peak performance.

Highlights
  • Mental performance training
  • Daily mindset challenges
  • Emotional regulation tools
  • Athlete mindset programs
  • Focus and flow training
  • Visualization and confidence building
  • Performance tracking
Features
Read full description

The Ultimate Mental Performance System for Athletes, Leaders, and High Achievers Unlock the mindset behind elite performance. Greatness OS is a world class mental performance and personal growth platform designed to help athletes, entrepreneurs, leaders, and high performers train the most important system they own: the mind. Built from the principles of sport psychology, neuroscience, leadership, emotional resilience, and peak performance, Greatness OS helps you develop confidence, discipline, focus, emotional control, and purpose driven execution. This is more than motivation. This is your operating system for greatness. FEATURES: Mental Performance Training Develop elite level focus, confidence, composure, and resilience through interactive mental conditioning exercises. Daily Greatness Challenges Train your mindset every day with high performance missions designed to sharpen discipline, consistency, and execution. Emotional Reset Tools Learn how to regulate pressure, anxiety, fear, self doubt, and emotional overload in real time. Athlete Mindset Programs Access premium sport psychology systems inspired by Olympians, professional athletes, and elite performers. Focus and Flow Training Improve concentration, mental clarity, reaction speed, and game day readiness. Visualization and Confidence Building Use guided visualization and identity based exercises to strengthen self belief and peak state performance. Leadership and Personal Growth Build stronger habits, communication skills, purpose, emotional intelligence, and leadership capacity. Performance Tracking Measure growth, consistency, mindset habits, emotional states, and progress over time. Premium Experience Beautiful design. Powerful psychology. Elite performance tools. Built for those who refuse to stay average. WHO IT IS FOR • Athletes • Coaches • Entrepreneurs • Students • Executives • High Performers • Anyone pursuing excellence WHY GREATNESS OS Most people train their body. Few train their mind. Greatness OS gives you the tools, structure, and psychology to perform under pressure, lead with confidence, and unlock your highest potential. Your greatness is not random. It is trainable. Download Greatness OS and begin your transformation today.

Screenshots

Derang4 screens
Greatness OS3 screens

Verdict

The call

The clearest difference is review sentiment: Greatness OS at 100% against Derang's 50%. Greatness OS also leads on rating (5.0 vs 1.0) and update cadence (every 6 weeks vs every 5 months). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Greatness OS holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: Greatness OS has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Derang's written reviews are positive against 100% of Greatness OS's.

UpkeepUpdate frequency

Derang ships an update every 5 months, Greatness OS every 6 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Derang versus Greatness OS: the parameters behind the verdict, then further details
ParameterDerangGreatness OS
PriceFreeFree
Rating1.0 (1 ratings)5.0 (8 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings18 — better
Update frequencyEvery 5 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size29 MB188 MB
Age rating4+4+
DeveloperLinkerTech Inc.Parsa Peykar

Customer experience

Derang

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Greatness OS

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Derang

No in-app purchases

None

Greatness OS

No in-app purchases

Questions

Is Derang free?
Derang is free to download, with no in-app purchases.
Is Greatness OS free?
Greatness OS is free to download, with no in-app purchases.
Which has better reviews, Derang or Greatness OS?
Greatness OS is rated higher. Derang averages 1.0 out of 5 from 1 ratings, while Greatness OS averages 5.0 from 8 ratings.
Do Derang or Greatness OS have ads?
Neither Derang nor Greatness OS shows ads.
Which is updated more often, Derang or Greatness OS?
Derang ships an update every 5 months, and Greatness OS every 6 weeks. Most recently, Derang was updated on November 3, 2026 and Greatness OS on October 31, 2026.

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