Your metal. Your vault.
100% Zero-Knowledge.
The portfolio and marketplace app for anyone who owns physical gold, silver, platinum, palladium or copper. Private, encrypted on your own device and connected to realtime spot prices.



The Four Pillars of Zero-Knowledge Custody
No prying eyes, no data sales. Your precious-metal records are yours, and yours alone.
Read the full security model: what is encrypted, what the server sees and where the limits are →
Secure key storage & biometrics
Unlock instantly with Face ID, Touch ID or your 6-digit PIN. Your key lives in your device's secure keychain, never with us.
Secret Recovery Phrase
A cryptographic 12-word backup. Lost your device? Restore your entire vault without an intermediary.
100% Local Valuation
Premium calculations, unrealised gains and tax reports are computed exclusively on your own phone.
Sovereign P2P Marketplace
Trade directly with other stackers in the Netherlands and Flanders. Meet at a neutral location or choose insured shipping, with built-in safety guidance.
Track gold, silver, platinum, palladium & copper to the milligram.
Aevumex reads live spot prices from metals.dev and converts at the European Central Bank's daily rate. Browse history from one day to ten years, put two metals side by side and read prices per gram, troy ounce or kilo, whichever you think in. Set alerts for your threshold and see the impact on your total vault value instantly.
Refreshed every minute, with 24-hour high and low.
You pick the measure; the app always reckons in fine weight.


No more sky-high premiums at commercial dealers.
Sell or swap your Maple Leafs, Krugerrands, Umicore or Heraeus bars directly with fellow stackers. Choose "Meet up" for a physical hand-over at a safe location or opt for insured shipping. Buyer and seller settle payment between themselves; Aevumex never holds funds.
- Early Pro access: see brand-new listings 24 hours before standard users.
- Safety guidance at hand-over: meet at a bank or dealer, weigh and measure, never prepay strangers.
- Offers in chat: bid on a listing and the seller accepts or declines. An accepted offer is an agreement, not a payment.
- Saved searches: say what you are looking for and hear about it the moment someone lists it.
- Reputation system: ratings after completed trades, a Pro badge, and report or block in one tap.
Know the price at which you break even.
You pay a premium over spot when you buy, so the price has to climb back to what you paid per gram before the position is worth what it cost. Aevumex works that out per metal and shows how far the market sits from it. It also draws the value of your vault over time from your own purchase and sale dates, so a coin only counts from the day you bought it.
- Cost basis per metal: average paid per fine gram, premium included.
- Alerts on the whole vault: a notification the moment your total value or your gain crosses a line.
- Zero-knowledge here too: your device converts your line into a price and sends only that price. What you hold stays with you.


Insurance and tax reports at the press of a button.
Export locally generated PDF overviews with serial numbers, storage location and the spot valuation on the reference date (1 January for Dutch Box 3), plus rules for Belgium, Germany, Austria, Switzerland, France, Spain and Poland. Ready for your accountant or insurer, without anyone accessing your data.
Choose your sovereign vault level
No ads, no tracking, no data sales. You only pay for powerful software features.
Starter Vault
BasicIdeal for the beginning stacker who wants to catalogue their first gold and silver coins privately.
- Up to 5 items in your personal vault (with quantities)
- Live spot prices and charts (gold, silver, platinum, palladium, copper)
- Price check: test any offer against spot, including outside the app
- 100% local AES-256 encryption
- Secret recovery phrase backup
- Two price alerts and home-screen widgets
- Access to the marketplace and chat
Sovereign Pro
UnlimitedFor serious investors and active precious-metal traders.
- Unlimited vault items, coins and bars
- 24-hour early access to new marketplace listings
- Asking price that follows spot: a fixed amount or percentage over spot, with a minimum price
- Value over time, cost basis and break-even per metal
- Chart tools: moving averages, Fibonacci, your own trend lines and inflation adjustment
- Unlimited alerts, including on the value or gain of your whole vault
- Tax & home-insurance PDF export
- A Pro badge on your listings
Made for Dutch & Flemish Stackers
Three promises to collectors and investors who choose privacy and independence.
"Your physical gold and silver belong on no central server. That is why your vault is encrypted on your own device and we only ever see unreadable blocks."
"Swap and buy from fellow stackers without auction fees or intermediaries. You and the other party agree how and where the hand-over happens."
"Box 3 overview on the reference date, an insurance overview with serial numbers and a sell insight per item. Computed on your phone, ready as PDF."
Frequently Asked Questions
Everything about encryption, vault backups and privacy.
What happens if I lose or break my phone?
Can Aevumex see how much gold or silver I own?
How does the peer-to-peer marketplace work without an intermediary?
How can the app alert me without knowing what I own?
Is the Starter tier really free without limits in time?
How does inviting a friend work?
I received an invitation link. How do I get my discount?
Protect your wealth in your own hands.
Install Aevumex on Android or iOS. Secured within 60 seconds with your own PIN and secret recovery phrase.