Comparison

GDB vs Primo Jewelry

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

Head to head
About

GDB

Features
Read full description

GDB Wallet is not just a cryptocurrency wallet; it's a bridge connecting offline retailers with the digital world. In GDB Wallet, you can effortlessly use digital currencies to pay for everyday goods and services, enjoying the convenience of one-click payments. Our platform supports a variety of cryptocurrencies, from Bitcoin and Ethereum to other major digital currencies, allowing flexible management and utilization. Beyond payment functionalities, GDB Wallet offers comprehensive digital asset management tools. Easily check your asset balance, stay updated with real-time market trends, and manage and adjust your investment portfolio. With in-depth market analysis and information, GD Wallet assists you in making smarter investment decisions. Whether you're a beginner in cryptocurrencies or an experienced investor, GDB Wallet meets all your needs. Security is our top priority. GDB Wallet employs industry-leading security measures, including multiple layers of encryption and authentication, ensuring the safety of your assets and transaction data. Moreover, our user interface is simple and intuitive, providing a seamless experience whether you're on mobile or desktop. Joining GDB Wallet not only gives you the convenience of digital currencies but also integrates you into the AUDCO ecosystem. We are committed to building an open, interconnected digital economy where everyone can enjoy the benefits of blockchain technology. Download GDB Wallet now and embark on your smart digital life!

About

Primo Jewelry

Instantly identify jewelry and estimate its resale value using AI. Features a precise ring sizer that uses your phone's camera and a bank card for accurate measurements in multiple international sizes.

Highlights
  • AI jewelry identification
  • Resale value estimation
  • Comparable sold listings
  • Camera ring sizer
  • Multiple international ring sizes
  • Local scan history
Features
Read full description

What is my jewelry worth? Primo Jewelry is a jewelry identifier and jewelry appraisal app with a ring sizer built in. Snap one photo of a ring, necklace, bracelet, watch, antique brooch, costume jewelry piece or loose gemstone, and the AI tells you what it is and what it could sell for. JEWELRY VALUE FROM REAL SOLD PRICES Take a single photo and the AI identifies the piece (type, likely metal, stones and style), then estimates its value from real sold prices on online marketplaces, not asking prices or guesswork. You get an estimated resale value, a price range, and the comparable sold listings behind it. IDENTIFY JEWELRY, GEMS AND WATCHES - Rings, necklaces, bracelets, earrings, pendants and brooches - Loose gemstones, pearls and diamond jewelry - Watches, from the dial markings and style - Antique, vintage and costume jewelry - Hallmarks and stamps such as 14K, 925 or PT950, read from the photo when they are visible RING SIZER No printable strips and no guessing. Place a standard bank card next to your ring or finger, take two photos, and Primo Jewelry measures the inner diameter and gives your US ring size plus UK, EU and JIS equivalents, circumference and neighbouring sizes. KEY FEATURES - AI jewelry identifier and jewelry scanner - Jewelry appraisal based on comparable sold listings, not asking prices - Estimated price range and recent sold comparables - Camera ring sizer with US, UK, EU and JIS sizes - Local history of every scan and measurement - Choose your currency - No account required, your photos stay private WHO IT IS FOR - Owners asking what their jewelry is worth before selling or insuring - Resellers and thrift, estate and garage sale shoppers pricing their finds - Families valuing inherited, antique or vintage pieces - Anyone who needs a ring size fast, for an engagement or a gift Primo Jewelry gives estimates for guidance only. It is not a certified appraisal, an authenticity test or professional ring sizing. Always confirm with a jeweler when accuracy matters. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GDB4 screens
Primo Jewelry4 screens

Verdict

The call

The clearest difference is in-app purchases: GDB at none against Primo Jewelry's 2. GDB also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). Primo Jewelry's advantage is ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Primo Jewelry sells 2 in-app purchases, starting at $7.99 per 7 days. GDB asks for nothing beyond the download.

UpkeepUpdate frequency

GDB ships an update every 2 weeks, Primo Jewelry every 2 months. The most recent releases landed on October 2, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 5 level
GDB versus Primo Jewelry: the parameters behind the verdict, then further details
ParameterGDBPrimo Jewelry
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size89 MB25 MB
Age rating4+4+
DeveloperGDBUY HOLDING PTY LTDPrimo Technology Ltd.

In-app purchases

None

GDB

No in-app purchases

2 purchases

Primo Jewelry

Subscriptions2
  • Primo Jewelry Premium - Weekly3 Days trial$7.997 Days
  • Primo Jewelry Premium - Yearly7 Days trial$29.991 Year

Questions

Is GDB free?
GDB is free to download, with no in-app purchases.
Is Primo Jewelry free?
Primo Jewelry is free to download, with in-app purchases available.
Do GDB or Primo Jewelry have ads?
GDB shows ads; Primo Jewelry does not.
Which is updated more often, GDB or Primo Jewelry?
GDB ships an update every 2 weeks, and Primo Jewelry every 2 months. Most recently, GDB was updated on October 2, 2026 and Primo Jewelry on October 28, 2026.

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