01
List your work
Manually or via Auto-Discovery for your SKM purchases.
theartwallet.The platform for your art collection.
ATELIER · M.Atelier-Übersicht
Live
KÜNSTLER-SCORE
86,4↗ +12,8% / 12M
TIER★ Star
AKTIVE WERKE12
VERKÄUFE / 12M8
Benefits
Your art at a glance.
Track the value of your works — data-driven and transparent.
11,153Documented sales
1,365Artists in index
2018Market data since 2018.
How-to
In three steps to a transparent collection.
02
Calculate value
We use the German art market standard: median real purchase prices, adjusted for format and market dynamics.
03
Track progression
Collection score, artist score and activity level, all clearly visualised at a glance.
Charts that show what matters.
Collection value, score history, privacy mode — all in one view.
- 01Score history per work and artist.
- 02Collection value over 3 months, 1 year or the full lifetime.
- 03Privacy mode for screenshots. Hide values, keep trends.
COLLECTION · M. HARTMANN14 works · 9 artists
LIVE
€ 24,580
+2,710 €· +12.4% in 12 months
3M6M1YMax
MAY '25SEP '25JAN '26MAY '26
Real marketNot gut feeling,
KUNSTFAKTOR2.4from 6 sales COMPARABLE SALES6in 24 months FORMAT POOLPainting80 × 100 cm VALUE DEVELOPMENT+18 %12 months ACTIVITY LEVELStarArtist level MEDIAN MARKET PRICE€ 2,180Pool median
Not gut feeling,
real market.
KF — the Kunstfaktor — is the German metric for value calculation. We compute it from real sales, not estimates or auction fantasies. Per format pool, per artist activity level.
PREMIUMShow your collection —
Show your collection —
wherever you want.
Embed your works as a live widget on your gallery website or portfolio. Configurable per field — you decide what's visible.
galerie-hartmann.de/sammlung
— Private collection
Hartmann Collection.
LIVE · THEARTWALLET
+12.4%
€ 2,180+18%
€ 1,640+9%
€ 3,420+22%
€ 2,860+14%
Embed bytheartwallet
For ArtistsUnderstand your market,
LIVE
Understand your market,
for real.
See not just what sells — but how your market value develops, which works pull, how your visibility trends.
STUDIO · M.
Studio overview
ARTIST SCORE
86.4↗ +12.8% / 12M
TIER
Star
ACTIVE WORKS
12
SALES / 12M
8
WORKS IN MARKET
Artist Score
Your market position as a number, updated monthly from real sales.
Activity Level
Star, Established, Rising — where do you rank? Which trend?
Works Performance
Which works are in demand? Which need attention?
Embed Widget
Show your score as a live widget on your own artist website.
Three plans, one collection.
Free
Gallery mode
€0/ month
- Upload up to 20 artworks
- View works in gallery look
- Capture work data (size, material, artist)
Basic
Data unlocked
€0/ month
- Everything in Free
- Unlimited artworks
- Artist Score (KF) + current market value
- Value development & performance history
- Total value & allocation of your collection
- File export (e.g. for insurance)
- Share your collection with friends (1 share link)
Pro
Collector profile
€0/ month
- Everything in Basic
- Embed your gallery (iframe for your website)
- Share your collection with friends (5 share links)
- Unlimited views of your public pages
- Trend analysis
- 1:1 expert consultation included
- Personalised buying recommendations
FAQ
Still questions?
Answers on methodology, privacy and pricing — everything collectors want to know before starting.
Start your collection.
Today.
20 works free. No credit card. Cancel with one click.