A portfolio of 48 German review & comparison portals — built for partners
I'm Thomas Hoiboom, a German publisher running 48 content, review and comparison portals under the hoibi.de umbrella — with a strong B2B SaaS vertical (accounting, payroll, tax, time tracking, email marketing, SEO and website software). Every portal is built on the same principles: editorially verified pricing from official vendor pages with a visible date stamp, open machine-readable datasets that AI assistants can cite, and fast static sites with high purchase-intent SEO traffic from the DACH market.
Why partner with hoibi.de
Every price is taken from the vendor's official pricing page and carries a visible date stamp. A scheduled routine re-checks prices twice a month.
Product data is published as open datasets (CC BY 4.0) plus llms.txt — optimized so ChatGPT, Perplexity & co. cite our comparisons, with your product in them.
Long-tail SEO around buying decisions ("what does X cost", "X vs Y", finder quizzes) — visitors arrive ready to choose a product.
Clearly labeled affiliate links, editorial ratings with published methodology, no coupon-site mechanics, GDPR-friendly cookieless analytics.
From B2B software to home & garden: one contact, consistent quality, SubID tracking per placement for transparent reporting.
Static sites, ~100 ms server response, no consent-banner friction — content loads instantly and converts.
The portfolio
Filter by category — every portal links to its live site. New projects appear here automatically on launch.
| Portal | Category | Focus | |
|---|---|---|---|
| buchhaltungssoftware-test.de | B2B SaaS | Accounting software for freelancers & small businesses — reviews, verified pricing, cost calculator | Visit ↗ |
| cms-checker.de | B2B SaaS | Website platforms & CMS — comparison portal with finder quiz | Visit ↗ |
| community-check.de | B2B SaaS | Community platform comparison (Skool, Circle, Mighty Networks) — fee calculator, verified pricing, open data | Visit ↗ |
| kursplattform-vergleich.de | B2B SaaS | Online course platforms (Kajabi, Elopage & co.) compared | Visit ↗ |
| lohnabrechnung-test.de | B2B SaaS | Payroll software & services — verified pricing dataset (11 solutions) | Visit ↗ |
| newsletter-tool-check.de | B2B SaaS | Email marketing tools — GDPR focus, lifetime-commission partnerships | Visit ↗ |
| seo-tool-check.de | B2B SaaS | SEO software comparison with interactive tool finder | Visit ↗ |
| wawi-check.de | B2B SaaS | ERP & inventory-management comparison for online merchants — which system connects to WooCommerce, Shopify or Shopware; open compatibility matrix with sources | Visit ↗ |
| zeiterfassung-check.de | B2B SaaS | Time tracking software for small businesses — 15 tools, verified pricing, legal guides | Visit ↗ |
| dartai.de | Software | AI dart recognition — snap a photo, get brand, model & player in seconds (free web app) | Visit ↗ |
| datenrettung-guide.de | Software | Data recovery software — scenario guides & comparison | Visit ↗ |
| makler-plugin.de | Software | WordPress real-estate plugins & tools for realtors | Visit ↗ |
| steuersoftware-check.de | Software | Consumer tax software — verified pricing dataset (6 programs) | Visit ↗ |
| autoreifen-ratgeber.de | Physical products | Car tires — 22-page buying & care guide | Visit ↗ |
| balkonkraftwerke-vergleichen.de | Physical products | Balcony solar systems — guides, storage price comparison | Visit ↗ |
| bbq-ratgeber.de | Physical products | BBQ & grilling — 150+ page hub: techniques, recipes, buying advice | Visit ↗ |
| buero-laufband.de | Physical products | Walking pads / under-desk treadmills — 22-model verified dataset | Visit ↗ |
| fermentations-ratgeber.de | Physical products | Fermentation (kombucha, tempeh & co.) with starter-culture data | Visit ↗ |
| feuerloesch-ratgeber.de | Physical products | Fire extinguishers for businesses (B2B compliance) | Visit ↗ |
| kartoffel-ratgeber.de | Physical products | Potato varieties, cooking & growing — with farm-shop partner | Visit ↗ |
| maehcheck.de | Physical products | Robotic lawn mowers — 32-model comparison with filters | Visit ↗ |
| nulleinspeisung-ratgeber.de | Physical products | Zero-feed-in balcony solar setups explained | Visit ↗ |
| outdoor-messer-guide.de | Physical products | Outdoor knives — guides & buying advice | Visit ↗ |
| pool-ratgeber.eu | Physical products | Pool care & equipment — 28-page guide portal | Visit ↗ |
| rauchmelder-guenstig.de | Physical products | Smoke detectors — comparison plus demand calculator | Visit ↗ |
| schlaftracker-test.de | Physical products | Sleep trackers (rings, wearables, sensors) compared | Visit ↗ |
| schulranzen-finder.de | Physical products | School backpacks — comparison portal with finder quiz | Visit ↗ |
| spielturm-ratgeber.de | Physical products | Climbing frames & play towers with finder quiz | Visit ↗ |
| stehschreibtisch-vergleich.de | Physical products | Standing desks — verified dataset (24 models) | Visit ↗ |
| tageslichtlampen-check.de | Physical products | Light therapy lamps — guides & comparison | Visit ↗ |
| terrassenbeschattung-ratgeber.de | Physical products | Terrace and conservatory shading — systems, norm values (DIN EN 13561), open data | Visit ↗ |
| trinkwasser-filtern.eu | Physical products | Drinking water filters — 22-page guide portal | Visit ↗ |
| zelt-wissen.de | Physical products | Commercial tents (party tents, halls) — knowledge hub with sizing tool | Visit ↗ |
| b-ware-vergleich.de | Services | Refurbished & open-box shops — conditions dataset | Visit ↗ |
| brillenglaeser-tauschen.de | Services | Online eyeglass lens replacement — guide & provider | Visit ↗ |
| employee-benefits-certification.com | Services | US employee benefits certifications (English-language site) | Visit ↗ |
| hundeschule.online | Services | Online dog training courses — 35+ page portal | Visit ↗ |
| hundeschulen-konzept.de | Services | Ready-made course concepts for dog trainers (B2B) | Visit ↗ |
| kochkurs-vergleich.de | Services | Online cooking classes & meal kits compared | Visit ↗ |
| pflegehilfsmittel-ratgeber.de | Services | Care aid boxes (German care insurance benefit) compared | Visit ↗ |
| verkaufe-buecher.de | Services | Book buyback services compared | Visit ↗ |
| airfryer-ideen.de | Content & guides | Air fryer recipes, tips & care guides | Visit ↗ |
| digital-wellness.eu | Content & guides | Digital wellbeing & screen time — guides with open datasets | Visit ↗ |
| innere-welt.de | Content & guides | Personal development & spirituality — hubs, articles, quiz | Visit ↗ |
| kabbalakompass.de | Content & guides | Kabbalah-based self-discovery: yearly themes, power days, mandalas & workbooks (own digital products) | Visit ↗ |
| nordische-runen.de | Content & guides | Norse runes — 29-page reference with book partnerships | Visit ↗ |
| sauerteig-ratgeber.de | Content & guides | Sourdough baking guides & recipes | Visit ↗ |
| schlaf-wissen.de | Content & guides | Evidence-based sleep guide — 25 pages, honest about weak evidence | Visit ↗ |
Network relationships
Active publisher accounts on Awin, ADCELL, CJ Affiliate, Impact, Digistore24, AddRevenue and PartnerStack — plus Amazon PartnerNet and several direct partnerships.
Vendor, network or affiliate manager? Reach me at kontakt@hoibi.de — I answer personally, usually within a day. For data partnerships, see the open data catalog.