Z4IP vs DrMarkLeong
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Z4IP
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Didn’t get enough sleep, but still feel fine? Z4IP will show you how well your brain is really functioning. Maybe it’s time for a quick power nap? Z4IP is designed to keep track of your cognitive performance as you go about your day, helping you identify when you are at your peak performance, and when you need that little extra boost. Through 5-minute game sessions spread across the day, Z4IP will assess your processing speed, spatial working memory, and reaction time. Games: Symbol Search Game: Find the pair below that matches one of the pairs on top Dot Memory Game: Remember where the dots were while trying to find the ‘F’s Reaction Time Game: Respond as fast as you can when the timer starts You can easily keep track of how you are performing with a summary display of your past game scores. Learn more about how your performance fluctuates with your lifestyle choices (e.g., being sleep-deprived). Reward points will be given along the way as you play. Features: Summary display of past game scores Receive notifications for game sessions Set timings to indicate when you may be too busy to play Earn reward points Keep track of how you are spending your time. Register now to have fun while discovering more about yourself!
DrMarkLeong
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[:mav: 1.6.3] Dr. Mark Leong is on an ambitious mission to feed 1 million families with the right and most nutritious food. We are a premier Food and Nutrition educational institute made up of highly qualified doctors, dietitian, nutritionists and chefs that teach people how to reverse the aging process, prevent chronic illnesses and avoid life-threating diseases through simple 3 steps by selecting the right foods. The revolutionary Bio-Beauty Ring is one of our products to monitor your health data from sleep to move, oxygen level, body temperature and sleep cycle. Disclaimer: DrMarkleong App provides valuable insights and tools for improving your health and well-being, it is not a substitute for professional medical advice. We recommend consulting with a qualified healthcare professional before making any significant changes to your diet, exercise routine, or lifestyle. Always prioritize your health and safety by seeking professional medical advice when making decisions related to your health.
Screenshots
Verdict
The clearest difference is update cadence: DrMarkLeong at every 11 days against Z4IP's every 2 months. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Z4IP ships an update every 2 months, DrMarkLeong every 11 days. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.
| Parameter | Z4IP | DrMarkLeong |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 27 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Chee | FARMZ PTE. LTD. |
In-app purchases
Z4IP
No in-app purchases
DrMarkLeong
No in-app purchases









