Great Crystal vs PETROMINit!
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Great Crystal
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GreatCrystal is an ecommerce application that specializes in selling GreatCrystal is an ecommerce application that specializes in selling a wide range of high-quality detergents and cleaning materials for both residential and commercial use. Our platform offers customers a convenient and reliable way to purchase essential cleaning products with just a few clicks. We provide a user-friendly interface that allows customers to easily browse through our extensive selection of products, compare prices and features, and place orders with secure payment options. Our mission is to provide customers with top-notch cleaning solutions that are effective, safe, and affordable, while delivering exceptional customer service and a seamless online shopping experience.
PETROMINit!
This app provides a streamlined and secure car care experience. It features an intuitive design, advanced security options, and tools to manage your vehicle, track loyalty points, and find nearby service centers. Enjoy exclusive offers and instant coupon notifications for a rewarding car maintenance journey.
- User-friendly interface
- Biometric security
- Loyalty points calculator
- Coupon notifications
- Vehicle management
- Service center locator
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The all-new Petromin Express app has arrived, delivering a superior, secure, and more rewarding car care experience. From a complete design overhaul to exciting new features, Petromin Express ensures you get the best in vehicle maintenance. What’s New & Upgraded: • Gorgeous, User-Friendly Design: Navigate effortlessly with our modern, intuitive interface, from Home to Service History. • Advanced Security with Biometrics: Protect your data using fingerprint and facial recognition. Exciting Additions: • Favorites: Quickly access your top services. • Earn & Burn Calculator: Plan and optimize your points usage with ease. • Clear Points History Guide: See how your loyalty points work with a simple explanation. • Instant Coupon Notifications: Never miss a deal with real-time pop-ups. • Effortless Vehicle Management: Simplified control over your cars, service history, and deactivation options. Everything You Love, Now Better: • Earn Rewards on Every Service Centre: Redeem points for fantastic discounts. • Find Service Centres Instantly: Integrated GPS makes finding the nearest Petromin service centre a breeze. • Exclusive Offers for You: Get access to deals tailored to your needs. Upgrade to Petromin Express today and experience the ultimate in car care!
Screenshots
Verdict
The clearest difference is update cadence: Great Crystal at weekly against PETROMINit!'s every 2 weeks. Great Crystal also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Great Crystal ships an update weekly, PETROMINit! every 2 weeks. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.
| Parameter | Great Crystal | PETROMINit! |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (49 ratings) — better |
| Positive reviews | — | 27.3% of reviews |
| Number of ratings | — | 49 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 63 MB | 81 MB |
| Age rating | 4+ | 17+ |
| Developer | BizTackle Innovations | Petromin Corporation |
In-app purchases
Great Crystal
No in-app purchases
PETROMINit!
No in-app purchases
