Every collection you keep — coins, comics, watches, vinyl, sneakers, LEGO, anything — in one calm private catalogue with photos, notes, and a running portfolio value. Entirely on your device.
Fourteen ready-made vitrines bundle the most common collections. Add a custom vitrine for anything else with your own cover image.
A photo or several, a name, a condition, the purchase price and date, a current estimated value, provenance notes, and any tags you care about. Update the estimated value any time and the app keeps a quiet value-history line.
The portfolio view shows the total value of everything across all your vitrines — a donut of how value spreads across categories, a list of the five most valuable pieces, and a monthly value line across time.
Donut chart — value spread across all your vitrines at a glance
Top five pieces — your most valuable items, always visible
Monthly value line — see the collection grow (or shift) over time
Wishlist — keep a list of pieces still to find, move them to a vitrine with one tap when they turn up
Export a full collection as a PDF or CSV — photos, values, provenance, the lot. Share an individual item card as an image to send anywhere.
A print-ready document of your full collection — every item, photo, condition, purchase price, and current value. Ready to hand to an insurer.
A spreadsheet of your entire catalogue — import into Excel, Numbers, or share with a family member keeping a record of the estate.
Export any individual item as a polished image card — photo, name, condition, value, and provenance — to send in a message or post anywhere.
Tarmo reads and answers every message personally.
This privacy policy applies to the Vault Stacker app for mobile devices, together with any related services operated by Tarmo Kaldmets (collectively, the "Application"). Tarmo Kaldmets is hereby referred to as the "Service Provider".
The Application does not collect, log, or store any personal information when you download and use it. Registration is not required. If the Application is used with an active internet connection, technical protocol data (such as your ephemeral IP address) is transmitted to facilitate network connectivity, but this data is not retained or used for tracking.
This Application does not collect precise information about the location of your mobile device.
Since the Application does not collect any information, no data is shared with third parties.
Since the Application does not collect personal information through normal use, uninstalling it simply removes the Application from your device.
If you contact the Service Provider directly or voluntarily provide information by other means, you may request deletion of that information by contacting [email protected].
The Application is not intended for children under 13 years of age, or such higher age as required by applicable law. The Service Provider does not knowingly solicit data from children or market to them. Since the Application does not collect personal information through normal use, children's data is not at risk from use of the Application alone. If you voluntarily provide personal information through other means and are under 13 years of age, your parent or guardian must provide consent on your behalf where permitted by law.
Because the Application does not collect personal data, the risk of personal data exposure is minimal. However, no security system is completely secure. The Service Provider implements reasonable safeguards to protect systems and any data it holds.
Since the Application does not collect personal data through normal use, the risk of a data breach affecting your personal data is minimal. If a breach occurs involving any data you have voluntarily provided, the Service Provider will notify you as required by applicable law.
The Service Provider may update this Privacy Policy from time to time. The Service Provider will notify you of material changes by posting the updated Privacy Policy with an effective date. Where required by law, the Service Provider will seek your consent to material changes before they take effect.
Previous versions of this Privacy Policy will be maintained and made available upon request by contacting the Service Provider at [email protected].
If you voluntarily provide information to the Service Provider and processing is based on consent, you may withdraw that consent at any time without affecting processing carried out before withdrawal.
If you have any questions regarding privacy while using the Application, or have questions about the practices, please contact the Service Provider via email at [email protected].
This privacy policy is effective as of 2026-08-25