Big C PLUS vs ONESIAM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big C PLUS
Shop a wide range of products online with flexible delivery and payment options. Earn and redeem loyalty points, and access exclusive daily coupons for great savings at physical stores.
- 40,000+ products online
- Flexible delivery options
- Multiple payment choices
- Loyalty point tracking
- Exclusive daily coupons
- QR code for in-store use
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Big C Plus, your go-to seamless online shopping application with numerous features and promotion just like you shop at your favourite Big C and Mini Big C near you. Big C Plus – Online Store • Shop Big C and mini Big C deals online from our 40,000 products ranging from fresh products, grocery, electronic appliances and household goods • Find deals, promotions, and value products everyday • Multiple delivery methods for your convenience – next day delivery, pick up at your favourite Big C Hypermarket stores, instant delivery and parcel shipping nationwide • Various payment methods cover all your lifestyles and needs Big Point Loyalty Program • Register or log in to Big Point loyalty program to earn and use points both online and at Big C Hypermarket nationwide • Member exclusive deals and promotion to maximize your saving • Member exclusive coupons in “My Coupon” for personalized deals and discounts
ONESIAM
This app connects online and offline shopping experiences across multiple retail destinations. It offers a comprehensive range of services, curated content, and exclusive privileges for shoppers. Discover and access services from leading Thai retail and lifestyle destinations.
- Online and offline shopping integration
- Access to multiple retail destinations
- Curated content and privileges
- Full range of services
- Bridging digital and physical retail
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“ONESIAM SuperApp” bridges online and offline worlds, caters to all shopping needs and brings together services from all of our retail destinations for passionate consumers, along with a full range of curated content and privileges. The app was curated and developed by Siam Piwat Group, a leading world-class retail and real estate developer from Thailand that owns and operates Bangkok’s most visited retail and lifestyle destinations such as Siam Paragon, Siam Center, Siam Discovery, ICONSIAM, and Siam Premium Outlets. ONESIAM SuperApp. The SuperApp for Extraordinary Experiences.
Screenshots
Verdict
The clearest difference is ads: Big C PLUS at none against ONESIAM's shown. Big C PLUS also leads on monetization model (free vs ad-supported). ONESIAM's advantage is rating (4.2 vs 4.0). On price, review sentiment, ratings volume and update cadence 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.
ONESIAM holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 20 and 10 respectively. Written reviews complicate that: 18% of Big C PLUS's written reviews are positive against 15% of ONESIAM's, so the app with the better star average is not the one people write more warmly about.
Big C PLUS ships an update every 2 weeks, ONESIAM every 11 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | Big C PLUS | ONESIAM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (20 ratings) | 4.2 (10 ratings) — better |
| Positive reviews | 18.3% of reviews — better | 15.3% of reviews |
| Number of ratings | 20 — better | 10 |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 104 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | Big C Supercenter Public Company Limited | Siam Piwat |
Customer experience
Big C PLUS
ONESIAM
In-app purchases
Big C PLUS
No in-app purchases
ONESIAM
No in-app purchases
