Comparison

Fastrack Smart World vs Gritzo

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

Head to head
About

Fastrack Smart World

This app pairs with your Fastrack Reflex smart wearable to manage settings, update firmware, and sync health data like steps, sleep, and heart rate. It offers features like 'Find my Watch' and integrates with Apple Health. Access to all functionalities requires a Bluetooth connection to your wearable.

Highlights
  • Connect/disconnect smartwatches
  • Software/firmware updates
  • Personalize settings
  • Sync health data (steps, sleep, heart rate)
  • Find my Watch
  • Apple Health integration
Features
Read full description

Fastrack Smart World is the official companion app for Fastrack smart wearables, bringing together health insights, fitness tracking, device customisation, and smart connectivity in one seamless experience. With an intuitive interface and easy-to-access insights, the app helps you stay on top of your daily activity, understand your wellness, and stay connected throughout the day. From monitoring your health and tracking workouts to customising your device and managing its features, Fastrack Smart World makes it easy to stay active, track your progress, and personalise your everyday wearable experience. Key Features: Comprehensive Health Insights: Stay in tune with your well-being with daily, weekly, and monthly trends across key health metrics. Get easy-to-understand insights to help you track your progress and make informed lifestyle choices. Smart Wearable Customisation: Make your Fastrack smart wearable truly yours. Explore available watch faces, manage device settings, customise notifications, and control your device preferences, all from one place. Personalised Dashboard: Make your dashboard work for you. Customise widgets and layouts to keep your favourite health stats, activity updates, and essential information right at your fingertips. Personalised Wellness Goals: Use the Focus Wheel to focus on what matters most to you. Prioritise your wellness metrics based on your lifestyle and goals, and stay motivated to build healthier habits. Fitness & Activity Tracking: Track your workouts, monitor sports activities, review your performance, and celebrate your achievements by sharing them with friends and family. Apple Health Integration: Sync compatible health data with Apple Health for a more connected view of your wellness across supported apps and devices. Multilingual Experience: Enjoy a more familiar app experience with VANI (Vernacular Access for Native India), supporting 9 Indian languages so you can use the app in your preferred language. Light & Dark Themes: Switch between light and dark modes to suit your preference and enjoy a comfortable viewing experience throughout the day. Smooth & Seamless Experience: Navigate with ease through a clean, intuitive interface designed for smooth interactions, reliable device connectivity, and optimised everyday performance. Get More Out of Your Fastrack Smart Wearable: Download Fastrack Smart World and bring your fitness, wellness, and wearable experience together in one place. Track your progress, stay active, personalise your device, and stay connected every step of the way.

About

Gritzo

This app offers personalized nutritional drinks for children, focusing on height, weight, and immunity. Parents can discover products tailored to their child's age, gender, and growth needs, with exclusive offers and a seamless shopping experience.

Highlights
  • Personalized nutrition recommendations
  • Goal-based product selection
  • Height, weight, and immunity support
  • Exclusive app offers and discounts
  • User-friendly interface
  • Secure payment gateway
Features
Read full description

Gritzo nutritional drinks are crafted to support childrens’ height, weight and immunity. That’s why 1 Lakh+ parents trust Gritzo. Gritzo Range Gritzo SuperMilk Height+ Personalized Protein & Nutrition Drink Mix: It has 13g of protein, calcium, 100% RDA D3, 21 vitamins and minerals with electrolytes, and no added refined sugars and preservatives. Available for different age groups - 13+yrs, 8-12yrs, 4-7yrs. Gritzo Supermilk Overall Growth Protein & Nutrition Drink Mix: With 6g of protein and DHA, calcium,100% RDA D3, 21 vitamins and minerals with electrolytes, it has no added refined sugars and preservatives. Available for different age groups - 13+yrs, 8-12yrs, 4-7yrs. Gritzo SuperMilk Weight+ Personalized Protein & Nutrition Drink Mix: It has 4g of protein and DHA. The personalized ingredients include Ashwagandha, Pre and Probiotic, MCT and Digestive enzymes. Available for different age groups - 13+yrs, 8-12yrs, 4-7yrs. Gritzo SuperMilk Genius Personalized Protein & Nutrition Drink Mix: For memory focus, it has personalized ingredients, including Brahmi, Shankhpushpi, DHA and Vitamin B12. Available for different age groups - 13+yrs, 8-12yrs. What Makes Gritzo Nutritional Drinks So Special? Considering age, gender and growth levels, Gritzo offers personalized nutrition for your child. Some of the features are listed below: Height Growth Immunity Muscle Repair Bone Strength Higher Stamina On the Gritzo App one can find personalized health drinks for children: Goals based product recommendations - Choose products best suited for your child as per age, gender and growth levels. Personalized offers - As you shop more, you get more offers and discounts. Using a user-friendly interface and enhanced app experience Notifications with the latest updates, product launches, promotions, deals, and offers Better visibility of product information and their comparison A seamless shopping experience for parents 2-step easy authentication of products The fast, safe and secure payment gateway for its customers Integration with popular payment options like credit/debit cards, net banking, and UPI, COD, EMI, Amazon Pay, wallet ensuring that customers can make transactions without any hassle App-only offers and extra discounts unavailable on other platforms Exclusive deals and discounts will help parents save money on their purchases and make the shopping experience even more rewarding. Filter your search on the basis of price, age, gender, goals, flavors New product launches and exclusive offers on them Download Gritzo app now and browse through a wide range of products across categories.

Screenshots

Fastrack Smart World4 screens
Gritzo4 screens

Verdict

The call

The clearest difference is review sentiment: Gritzo at 57% against Fastrack Smart World's 22%. Gritzo also leads on rating (4.8 vs 4.5). Fastrack Smart World's advantage is ratings volume (1.1K vs 30). On price, update cadence, 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

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

Gritzo holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Fastrack Smart World has 1.1K ratings behind it against 30, so its average is the more settled of the two. Written reviews point the same way: 22% of Fastrack Smart World's written reviews are positive against 57% of Gritzo's.

UpkeepUpdate frequency

Fastrack Smart World ships an update fortnightly, Gritzo every 10 days. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Fastrack Smart World versus Gritzo: the parameters behind the verdict, then further details
ParameterFastrack Smart WorldGritzo
PriceFreeFree
Rating4.5 (1.1K ratings)4.8 (30 ratings) — better
Positive reviews21.9% of reviews56.5% of reviews — better
Number of ratings1.1K — better30
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS1615.0 — better
Further details — not scored
Size754 MB136 MB
Age rating4+4+
DeveloperTitan Company LimitedBright Lifecare Private LTD

Customer experience

Fastrack Smart World

All ratings1,079 ratings
Positive86.7%
Neutral3.4%
Negative9.9%
Written reviews201 reviews
Positive21.9%
Neutral12.9%
Negative65.2%

Gritzo

All ratings30 ratings
Positive96.7%
Neutral0.0%
Negative3.3%
Written reviews23 reviews
Positive56.5%
Neutral4.3%
Negative39.1%

Bugs and requests

Fastrack Smart World

Reported bugs

8 issues
  • Firmware update failed
  • Not opening app
  • OTP not working
  • Software doesn't update
  • Tracking data doesn't sync
Show 3 more
  • Custom watch face feature doesn't work
  • Incompatible with abroad mobile
  • Can't receive OTP

Requested features

3 requests
  • More watch faces
  • Add more customizability
  • Improve app and watch compatibility

Gritzo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Fastrack Smart World

No in-app purchases

None

Gritzo

No in-app purchases

Questions

Is Fastrack Smart World free?
Fastrack Smart World is free to download, with no in-app purchases.
Is Gritzo free?
Gritzo is free to download, with no in-app purchases.
Which has better reviews, Fastrack Smart World or Gritzo?
Gritzo is rated higher. Fastrack Smart World averages 4.5 out of 5 from 1.1K ratings, while Gritzo averages 4.8 from 30 ratings.
Do Fastrack Smart World or Gritzo have ads?
Neither Fastrack Smart World nor Gritzo shows ads.
Which is updated more often, Fastrack Smart World or Gritzo?
Fastrack Smart World ships an update fortnightly, and Gritzo every 10 days. Most recently, Fastrack Smart World was updated on November 3, 2026 and Gritzo on October 30, 2026.

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