katerfly
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Great7.7%search→purchase rate — share of searches ending in a sale
Avg price
Great€15.67avg listing price — sweet spot $15–$100
Price range
Great€3.08–€50.09cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,325.18avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Bad-2.3%90-day search growth — must beat 0% to launch
Market size
Bad€74K€74K/yr · 61K searches
Competition
Bad78%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon Germany niche tracking, katerfly is a €74K/yr Amazon Germany market (61K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 41/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
katerfly market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- €63K–€78K
- units × avg price
- Conversion rate
- 7.7%
- Avg BSR
- #197
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 64%
- Out of stock
- 0.0%
- Avg brand age
- 58 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
32
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
0%
- PARTYFLY56%
- sanotact20%
- Elotrans14%
- ALKORIN6%
- natural elements4%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.3% search growth over the last 90 days.Peak months: Jun, Jul · busiest ÷ quietest = 2.0×
Top katerfly search terms
- katerfly18K/yr
- partyfly16K/yr
- alka seltzer18K/yr
- party fly6K/yr
- alka seltzer brausetabletten3K/yr
Top katerfly 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.
All 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
PARTYFLY Brausetabletten 12 Stück = 3 x 4 Stück - mit Vitamin C und Elektrolyten - reload
PARTYFLY€19.334.4★27 rev
ELOTRANS reload - isotonische Elektrolyt-Glucose-Mischung - Nahrungsergänzungsmittel mit Magnesium Kaliumchlorid Cholin und B-Vitaminen - 1 x 15 Beutel
Elotrans€10.334.6★3,205 rev
sanotact Elektrolyte Plus (20 Beutel) Elektrolyt Pulver für Flüssigkeitshaushalt Kalium & Magnesium für Elektrolytgleichgewicht 100% Vegan Recovery Drink Mit Orangengeschmack
sanotact€3.324.4★4,421 rev
PARTYFLY Brausetabletten 8 Stück = 2 x 4 Stück - mit Vitamin C und Elektrolyten - reload
PARTYFLY€14.904.7★8 rev
PARTYFLY Brausetabletten 50 Stück - 50x 1 Tablette
PARTYFLY€50.094.6★3 rev
Newest
by launch date
PARTYFLY - 24x Brausetabletten im praktischen Display (6x4 Stück) - Exklusives Display - mit Vitamin C und Elektrolyten -
PARTYFLY€33.051 rev
PARTYFLY Brausetabletten 50 Stück - 50x 1 Tablette
PARTYFLY€50.093 rev
Elektrolyte Sticks NIGHT-OUT 20 Sticks Grapefruit-Geschmack Elektrolyt Pulver mit 1336mg Elektrolyten mit Cholin für die Leberfunktion* inkl. Antioxidantien* vegan
natural elements€13.7755 rev
sanotact Elektrolyte Plus 50 Stück Großpackung für Festival Sport & Hochzeit Gastgeschenk Elektrolyte Pulver für den Party Urlaub Zubehör & Training
sanotact€7.564,420 rev
sanotact Elektrolyte Recovery Elektrolyt Pulver mit Cholin & Vitaminen Hydration & Energie für Party Sport & Festivals Vegan Pfirsichgeschmack 10 Sticks
sanotact€3.21347 rev
Trending
90-day click momentumElektrolyte Sticks NIGHT-OUT 20 Sticks Grapefruit-Geschmack Elektrolyt Pulver mit 1336mg Elektrolyten mit Cholin für die Leberfunktion* inkl. Antioxidantien* vegan
natural elements€13.774.2★
sanotact Elektrolyte Plus 50 Stück Großpackung für Festival Sport & Hochzeit Gastgeschenk Elektrolyte Pulver für den Party Urlaub Zubehör & Training
sanotact€7.564.4★
PARTYFLY Brausetabletten 8 Stück = 2 x 4 Stück - mit Vitamin C und Elektrolyten - reload
PARTYFLY€14.904.7★
PARTYFLY Brausetabletten 12 Stück = 3 x 4 Stück - mit Vitamin C und Elektrolyten - reload
PARTYFLY€19.334.4★
ELOTRANS reload - isotonische Elektrolyt-Glucose-Mischung - Nahrungsergänzungsmittel mit Magnesium Kaliumchlorid Cholin und B-Vitaminen - 1 x 15 Beutel
Elotrans€10.334.6★
What buyers say about katerfly
What buyers praise and complain about, mined from review topics.What buyers love
“Schmeckt angenehm frisch nach Orange”
“Ideale Alternative zum teuren Elotrans”
“Super Geschmack”
“Super Produkt”
“alles ok. wie auf dem Foto”
“schnell mit Wasser mischen”
“funktioniert”
“Beste nach einer durchzechten Nacht”
“Das ease besty”
“leicht herb, ohne übermäßig süß zu sein.”
What buyers complain about
“Geschmacklich überhaupt nicht gut”
“Furchtbar süß”
“Geschmacklich überhaupt nicht gut”
“Unnötiger Süßstoff”
“Hält nicht, was es verspricht”
“Geschmack eher salzig”
“halt etwas teuer”
“Müll”
“Unseriös”
“Pulver feucht, man bekommt es kaum aus der Tüte”
Common questions
- Is katerfly profitable to sell on Amazon Germany?
- The niche generates €74K/yr across 11 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -2.3%. Flapen's verdict: Skip it (41/100).
- How competitive is the katerfly niche?
- 5 brands and 32 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in katerfly?
- Top complaints mined from reviews: Geschmack insgesamt, Süße, Geschmack. The return rate is 0.1%.
- When does demand for katerfly peak?
- Demand peaks in Jun–Jul; the busiest month runs 2.0× the quietest.
- What does it cost to enter the katerfly niche?
- Listings span €3.08–€50.09; the average listing price is €15.67 (sweet spot $15–$100). The average incumbent carries 1,325 reviews — the moat a new listing must climb.