Arial Gamer✨
Identification from photos
AI looks at the photos and fills in name, model and year for you to check. (Premium)
Acervo
Your stamp collection, organized on your phone
Photograph stamps, blocks and covers, record country, year and condition, and carry your whole collection in your pocket, with its estimated value.
📦 Free to start · 🚫 No ads All about Acervo →
What to record for each piece
- ✉️Photos of every piece: Single stamps, blocks and covers, with several photos per item.
- ✉️Country, year and series: In your own fields, the way you already organize your album.
- ✉️Condition and notes: From new to needs restoration, plus your notes on cancellation and gum.
- ✉️What you paid: To follow what your collection is worth today.
How Acervo helps
💰
What it’s worth
Low, typical and high price on the used market, in your country’s currency, with eBay as reference.
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Find collectors
Groups, forums and videos about your model, and how many Acervo collectors own the same one. Contact only if both accept. (Premium)
Frequently asked questions
How do I find out what a stamp is worth?
Photograph the stamp in Acervo: the app identifies country, year and series from the photos and shows the price range of similar stamps on the used market (Premium). For rare pieces, check with an expert.
Is Acervo free?
Yes, to start: up to 5 items with 3 photos each, report and cloud, with no ads. Premium unlocks unlimited items, up to 20 photos per item and AI valuation, as a monthly or yearly subscription.
Does it work offline?
Yes. Your collection lives on your phone and you can use it without a connection. When you’re back online, everything is saved to the cloud.
How does Acervo know what an item is worth?
With Premium, the app searches similar used items, with eBay as reference, and shows a low, typical and high price in your country’s currency. It’s an estimate to guide you, not an official appraisal.