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karteikarten

Skip it

Prices mostly outside the sweet spot ($2.62–$11.21) — this niche doesn't clear our bar today.

Market size 62Growth 12Conversion 80Competition 11Returns 98Price range 0Avg price 20Brand share 21Review moat 46Quality gap 28

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Conversion

Great8.3%

search→purchase rate — share of searches ending in a sale

Market size

Good€551K

€551K/yr · 900K searches

Review moat

Okay1,942.8

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Brand share

Bad92%

top-5 brand share — brand-locked demand

Avg price

Bad€7.35

avg listing price — sweet spot $15–$100

Growth

Bad-26.7%

90-day search growth — must beat 0% to launch

Competition

Bad87%

top-5 click share — a locked-up shelf

Price range

Bad€2.62–€11.21

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon Germany niche tracking, karteikarten is a €551K/yr Amazon Germany market (900K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in Nov. Verdict: Skip it — 39/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

karteikarten market data

Units sold / yr
100K–125K
avg 12,500–15,000/product
Revenue / yr
€735K–€919K
units × avg price
Conversion rate
8.3%
Avg BSR
#10
Page quality
0%
Prime
100%
Sponsored
100%
Out of stock
0.0%
Avg brand age
40 months
Avg seller age
187 days

Competition & brand share

The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

27

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

87%

Top 20: 100%

Open market

5%

  • Amazon Basics55%
  • Herlitz21%
  • DOHE7%
  • Koogel5%
  • Thboxes4%
  • Plastoreg3%
  • Open — no brand owns it (2 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -26.7% search growth over the last 90 days.
23K18KSpike '24Spike '25SepDecMarJunAugNovMarMay

Peak months: Nov · busiest ÷ quietest = 1.8×

Top karteikarten search terms

  • karteikarten574K/yr
  • karteikarten a6171K/yr
  • lernkarten47K/yr
  • karteikarten a6 liniert12K/yr
  • flashcards13K/yr
  • flash cards10K/yr
  • a6 karteikarten9K/yr
  • karteikarten bunt9K/yr
  • index cards8K/yr
  • karteikarten weiß6K/yr
All search terms

Top karteikarten products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%€83K30%€165K45%€248K60%€331K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

What buyers say about karteikarten

What buyers praise and complain about, mined from review topics.

What buyers love

Qualität insgesamt23%

“Stabile Qualität”

Preis-Leistungs-Verhältnis15%

“Preis-Leistung passt super”

beworben Vs Tatsächliches Produkt12%

“Produkt wie beschrieben”

Papierqualität11%

“Super praktisch, nur etwas dünneres Papier, als erwartet”

Farbe11%

“Farben sind schön”

Benutzerfreundlichkeit6%

“gut geeignet für kurze Notizen”

Stärke6%

“solide und glatt”

Gesamtgröße3%

“passt”

Schreiberfahrung2%

“stören nicht beim Schreiben.”

Materialqualität1%

“Tolles Material”

What buyers complain about

Papierqualität28%

“Dünn wie Papier”

Qualität insgesamt16%

“Die Qualität ist wirklich miserabel”

Dicke13%

“Dünn wie Papier”

Gesamtgröße6%

“Sie sind zu groß für mich”

Produktzustand6%

“Gebrauchten Artikel erhalten”

Druckqualität4%

“Die Linien sind so blass gedruckt, dass man sie kaum erkennt”

Schreiberfahrung2%

“Schreiben mit Fineliner und Filzstift nicht möglich (siehe Foto).”

Stärke2%

“Die Box ist instabil”

Metallqualität2%

“einer der Metallringe war auch kaputt.”

Haltbarkeit2%

“hält vermutlich nicht lange”

Top return reasons

Gesamtgröße71%
Dünn7%
Papierqualität7%
Farbe3%
Gleichgewicht/Stabilität2%
Defekt Material/Teile2%
Qualität insgesamt2%
Kompatibilität – insgesamt1%
beworben Vs Tatsächliches Produkt1%
Druckqualität1%

Common questions

Is karteikarten profitable to sell on Amazon Germany?
The niche generates €551K/yr across 10 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -26.7%. Flapen's verdict: Skip it (39/100).
How competitive is the karteikarten niche?
8 brands and 27 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in karteikarten?
Top complaints mined from reviews: Papierqualität, Qualität insgesamt, Dicke. The return rate is 0.4%.
When does demand for karteikarten peak?
Demand peaks in Nov; the busiest month runs 1.8× the quietest.
What does it cost to enter the karteikarten niche?
Listings span €2.62–€11.21; the average listing price is €7.35 (sweet spot $15–$100). The average incumbent carries 1,943 reviews — the moat a new listing must climb.