Poly Auction HK vs TDD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Poly Auction HK
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For collectors and art lovers – the Poly Auction Hong Kong app offers an array of Eastern and Western art and crafts, including modern and contemporary art, Chinese antiques and paintings, jewellery, watches, handbags, art toys and fine wines. Specialist teams present dedicated saleroom and online auctions, where you can bid on your favourite collections with the app. You may also browse our auction catalogues, register an account, bid in auctions, watch auction live streams and receive alerts when your favourites are up for auction. You can also – • Place a deposit and make payments online • View auction highlights and media on-the-go • Bookmark your favourite lots and auctions • See past auction records and e-catalogues • Submit your collections and receive free auction estimates from our team Poly Auction Hong Kong offers annual Spring and Autumn Auctions, art and charity events, online auctions, eShop buy it now & private sale services. Our team presents rare and exquisite collections from all disciplines tailored for art connoisseurs, offering a feast of the art online. Download the app and experience it now! Established in 2012 by the Poly Culture Group Corporation Limited, Poly Auction Hong Kong is a young but remarkable auction house in Hong Kong. Poly holds a variety of auctions and events, including the NFT Digital Art auctions, artists’ talks and workshops, and the Poly Gallery Hong Kong, a multi-purpose exhibition space for various events.
TDD
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Toodudu E-commerce Co., Ltd (Toodudu) is a core subsidiary of IBI (603613.SH) and the premiere industrial internet platform of Doodoo system. TDD-global is Toodudu's professional bulk B2B cross-border platform, which covers the fields of titanium, resin, solvents, automotive, medical and cold chain industry chain, etc. We have set up overseas warehouses in more than 50 countries and regions, providing integrated digital cross-border solutions for cross-border enterprises. The platform is committed to providing comprehensive services for cross-border enterprises, including cross-border transactions, digital cloud factory upgrades, overseas shared warehouse services, shipping lines, overseas exhibitions, customs clearance and tax rebates, cross-border insurance, cross-border production and financing services, etc. Through these services, we help enterprises carry out digital cross-border transactions and promote industrial upgrading value mission.
Screenshots
Verdict
The clearest difference is update cadence: TDD at weekly against Poly Auction HK's every 2 months. TDD also leads on iOS requirement (12.0 vs 15.1). 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.
Poly Auction HK ships an update every 2 months, TDD weekly. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | Poly Auction HK | TDD |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 12.0 — better |
| Further details — not scored | ||
| Size | 60 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Poly Auction Hong Kong Limited | 北京国联视讯信息技术股份有限公司 |
In-app purchases
Poly Auction HK
No in-app purchases
TDD
No in-app purchases









