OngoingAI

Billstack usage & market intelligence

Pricing
Free trial available
FreeEstimated monthly cost
  • • 50 orders/month included
  • • $0.10 per extra order
  • • Stock sync & tracking push
  • • GoBD & ZUGFeRD invoices
  • • All features in all plans included
StarterEstimated monthly cost

14-day free trial

  • • 500 orders/month included
  • • $0.06 per extra order
  • • Stock sync & tracking push
  • • GoBD & ZUGFeRD invoices
  • • All features in all plans included
GrowthEstimated monthly cost

14-day free trial

  • • 1,500 orders/month included
  • • $0.04 per extra order
  • • Stock sync & tracking push
  • • GoBD & ZUGFeRD invoices
  • • All features in all plans included
BusinessEstimated monthly cost

14-day free trial

  • • 5,000 orders/month included
  • • $0.034 per extra order
  • • Stock sync & tracking push
  • • GoBD & ZUGFeRD invoices
  • • All features in all plans included
What does Billstack do?

Connect Shopify to Billstack: real-time order import, GoBD-compliant invoices (ZUGFeRD), stock sync and shipping — built for merchants in Germany & the EU.

  • Real-time order import via webhooks, incl. addresses and payment status
  • Automatic, legally compliant invoices (ZUGFeRD e-invoicing, GoBD)
  • Product catalog import and continuous stock sync (Billstack as stock master)
  • Tracking numbers pushed back to Shopify automatically
  • Multi-channel: eBay, Amazon, Etsy, Kaufland, OTTO, Shopware in one back office

Features

Inventory syncOrdersPricesProduct detailsVariantsSKUsBarcodesMulti-channelMulti-storeAutomaticManualBulkReal-timeScheduledCustomAutomated alertsCustom notificationsOrder updatesEmail alertsError reportsHistorical reportsInventory alertsLow stock alertsData import and exportPerformance metricsReal-time statusDetailed logsERPCustom workflowsMulti-platform managementAutomated fulfillmentDelivery managementBatch processingOrder editingStatus updatesOrder syncReal-time syncMulti-locationBatch trackingExpiry dates
Review history
Daily review count on the Shopify App Store
0±0 · 26d· Rating steady at 0.0★
Aug 10Sep 4

Daily tracking from Aug 10, 2026 through today · 25 days observed

Category rankings
Live organic position on Shopify App Store category pages
  • ERP#95 on Aug 18 → #96 on Aug 31 · 5 observed days#96▼1

Tracked daily · last 14 days · as of 2026-08-31

Catalog position
Within Inventory sync on the App Store
Rank by reviews
#385 of 444
Review percentile
14th
Rating percentile
55th
On the App Store
0.1 yrs
Works with
Integrations listed for Billstack
AmazoneBayEtsyKauflandOTTOShopware
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Frequently asked questions

Connect Shopify to Billstack: real-time order import, GoBD-compliant invoices (ZUGFeRD), stock sync and shipping — built for merchants in Germany & the EU. It's a inventory sync tool for ecommerce stores.