E-Commerce Platforms & Shop Systems

Gambio

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Panel rating · 6 judges · How to read the stars

Category median

Sovereignty: not determined

0–5 in half steps. 5 means the rubric's top anchor is met on the evidence.

An AI-assisted analysis of public evidence — not a hands-on test.

Every score, rationale and verdict on this page is AI-generated. Every claim cites the source it was read from. Nothing here is a human star review — and no score can be bought. How scores are made →

Method and versions

The Merchant v1.0 · The B2B Seller v1.0 · The Developer v1.0 · The Operations Lead v1.0 · The Data Protection Officer v1.0 · The Skeptic v1.0 · rubric v1 · evaluated 16 Sep 2026

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Read this page as one judge. Each weighs the same scores by what they care about.

The Developer

Weighted verdict

Will maintain this for five years. Wants local development, version control for themes, a plugin architecture with a dependency model, and upgrades that do not orphan the customisations. Reads a closed template editor as a future migration.

Same scores as the panel view — this lens weights them the way this judge cares.

Scored by The Developer

Catalogue & checkout

How this is scored

Products, variants, pricing rules and the path to payment — the part that either converts or does not.

0 — Flat product list with one price and no variants; checkout is a form and one payment method.

3 — Variants and categories with a standard checkout and two or three payment methods, but no bundles, no tiered pricing and no guest checkout worth the name.

5 — Full variant matrix, product bundles, tiered and customer-group pricing, guest checkout, and the payment methods a German shop needs including invoice and direct debit.

8 — Configurable products, per-channel pricing, promotions and vouchers with rules, a checkout that can be customised without a rebuild, and payment via the major providers plus buy-now-pay-later where offered.

10 — Merchandising and checkout are the product: rule-driven pricing and promotions, A/B-testable checkout, multi-currency and multi-language as standard, and conversion features (abandoned cart, one-page checkout) shipped rather than bolted on.

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The Developer

Variants, tiered pricing (Staffelpreise), vouchers and B2B are on the all-inclusive list, which clears rubric level 3 — but bundles, guest checkout, invoice and direct debit appear nowhere, and 'Zahlungsabwicklung mit PayPal & Co.' is the entire payment story. Nothing on promotion rules, per-channel pricing or conversion features like abandoned cart or one-page checkout. 1

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Tax & German legal correctness

How this is scored

VAT determination, OSS, B2B reverse charge, and the checkout requirements German law actually imposes — judged on what the platform does, not on a plugin someone could buy.

0 — A single VAT rate applied everywhere; no B2B handling, no country logic, no legal-text handling in checkout.

3 — Per-country VAT rates configurable by hand, net prices for B2B possible with effort, and legal texts as free-form pages.

5 — Automatic VAT by destination and customer type, VAT-ID validation with reverse charge, gross and net display per customer group, and the mandatory checkout elements (order button wording, withdrawal policy, price indications) handled.

8 — OSS thresholds tracked and reported, correct invoicing per case including reverse-charge notes, small-business and third-country handling, and e-invoicing (XRechnung/ZUGFeRD) for B2B orders.

10 — Tax and legal correctness are maintained by the vendor rather than the merchant: rates and thresholds updated as the law moves, OSS reporting produced, every invoice case correct out of the box, and documented conformity a lawyer could review.

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The Developer

'Zertifizierte Rechtssicherheit' plus individual legal texts with liability assumption available in all cloud plans is genuine vendor-maintained legal correctness — the direction the top anchor describes. But the evidence is completely silent on VAT determination by destination, OSS, reverse charge and e-invoicing, so I cannot credit the tax mechanics at all. 1

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Extensibility & developer surface

How this is scored

Themes, apps, APIs and headless — whether the shop can be shaped to the business, and at what cost in lock-in.

0 — Fixed templates, no app ecosystem, no API.

3 — Theme editing within limits and a small app store; a read-mostly API and no local development story.

5 — Custom themes with a template language, an app or plugin ecosystem, a documented REST API, and webhooks for the core order events.

8 — Full storefront API for headless builds, an extension framework with its own lifecycle, staging environments, version control for themes, and documented rate limits.

10 — A platform a team can own: headless-first APIs, open-source or source-available core, plugin architecture with a real dependency model, local development and CI supported, and upgrade paths that do not orphan customisations.

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The Developer

StyleEdit is a closed design tool, the pitch is 'no programming knowledge required', the shop lives only in Gambio's cloud, and 'API-Zugang' is one cell in a plan matrix with no documentation behind it — no local development, no version control for themes, no plugin dependency model. The 200 interfaces and Gambio Store keep this a hair above rubric level 3; I read a closed template editor as exactly the future migration I fear. 1

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Order operations & back office

How this is scored

What happens after checkout: order management, stock, returns, shipping, and the link to ERP or accounting.

0 — An order list and an email; stock is a number nobody trusts, returns are manual.

3 — Order statuses and basic stock, one shipping integration, and returns handled by hand.

5 — Order workflow with partial shipments, multi-warehouse stock, named carrier integrations with label printing, and a returns process in the system.

8 — Multi-channel order intake, automated fulfilment routing, supplier and dropshipping flows, and maintained interfaces to named ERP and accounting systems.

10 — The shop is the front of an operation: real-time stock across channels and warehouses, returns and refunds fully worked including partials, ERP integration the vendor maintains, and operational reporting a merchant runs the business from.

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The Developer

Invoices and delivery notes ship with the product, multichannel selling is claimed, and there are partner credits for Afterbuy (fulfilment/after-sales tooling) and Baygraph (analytics), which hints at a real back office. Returns, stock accuracy, carrier labels and any vendor-maintained ERP interface are entirely unevidenced. 1

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Data ownership & exit

How this is scored

Whether the catalogue, customers and order history remain the merchant's: export completeness, hosting choice, and what leaving actually costs.

0 — Export is a partial CSV; order history and customer records cannot leave intact, and hosting is the vendor's alone.

3 — CSV export of products and customers, order history partial, no self-hosting, no documented migration path.

5 — Complete export of catalogue, customers and orders via API or dump, documented deletion, and a stated data-return commitment.

8 — Full-fidelity export including media and order documents, self-hosting or a choice of hosting partner, and no metering that prices a migration out of reach.

10 — Ownership is structural rather than promised: open-source or source-available platform the merchant can run anywhere, database-level access, documented migration in both directions, and contractual data return.

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The Developer

'Import / Export' is a single feature bullet with no scope, the shop is created in Gambio's cloud with no self-hosting option, and the evidence says nothing about export completeness, documented deletion or any migration path out. That is rubric level 3 exactly: export of unknown fidelity, no self-hosting, no documented exit. 1

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European sovereignty

How this is scored

Where customer and order data live, who the contracting entity is, and which subprocessors sit in the checkout path. Independently sourced by the sovereignty pipeline.

0 — Non-EU vendor and contracting entity, hosting unstated or non-EU, subprocessors unnamed.

3 — EU hosting offered as an option while the contracting entity is non-EU, or the subprocessor list is absent.

5 — EU hosting as standard and an EU contracting entity, but parts of the chain — CDN, analytics, payment routing, support tooling — are non-EU without an explained safeguard.

8 — EU hosting on named infrastructure, EU contracting entity, complete subprocessor list published, any non-EU processing named with its legal basis.

10 — Sovereign end to end and evidenced: vendor, entity, hosting and every subprocessor European, certification published, and a self-hosted option that puts the shop entirely under the merchant's control.

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The Developer

The vendor is a German GmbH in Bremen and hosting is bundled rather than optional, but the sovereignty pipeline has no attributes on record: hosting location, subprocessor list and certification are all unstated, and payment routing is just 'PayPal & Co.' with the chain unnamed. EU contracting entity yes; evidenced chain no. 1

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Pricing transparency

How this is scored

Whether a merchant can compute the real annual cost — licence, transaction fees, apps, hosting — from public pages alone. The category where the headline price is least often the invoice.

0 — No public prices at all; every tier is a sales conversation.

3 — A monthly headline exists, but transaction fees, mandatory apps or hosting costs are unstated — the invoice is unknowable from the page.

5 — Tier prices public with billing period stated and transaction fees given, but at least one commonly needed piece (a required app, hosting, payment gateway rate) is unpriced.

8 — Every tier priced publicly including transaction or revenue-share rates, order or GMV limits, and the cost of the extensions most shops need; VAT treatment and minimum term stated.

10 — Complete price computability: annual cost derivable for a given order volume and GMV including licence, transaction fees, hosting and typical extensions — and for open-source platforms, an honest statement that the licence is free and where the money actually goes.

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The Developer

All four tiers are public with the 12-month minimum term stated, hosting is included rather than a hidden extra, and there is even a worked annual example (12 x 29 EUR = 348 EUR) plus a 30-day trial — better than most SaaS pages. But transaction fees, the volume limits the tier names imply ('geringes Volumen' to 'hohem Volumen'), VAT treatment and extension prices beyond the partner credits are unstated, so the real annual invoice is only partly computable. 1

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European sovereignty — proven facts

0 of 4 dimensions proven

Built only from facts shown on the vendor's own pages. A dimension we could not prove is left open, not scored as zero.

Legal entity	Not determined	—	uncited Report an error
Ownership	Not determined	—	uncited Report an error
Data residency	Not determined ⚠ unverified	—	uncited Report an error
Subprocessors	Not determined ⚠ unverified	—	uncited Report an error

Where this could be wrong

Evidence ages. The oldest capture behind this page is from 15 Sep 2026. Vendors change pricing and policies without notice; every fact reflects its source as of the capture date shown in the registry.
Weak sourcing — Data residency, Subprocessors. Not confirmed on the vendor’s own pages as captured.
AI can misread a source. Extraction and judgement are automated; a citation guarantees traceability, not infallibility. If something here is wrong, say so — no account needed, every report is decided within 5 business days, and accepted corrections are published.

What we left out

A claim that does not survive our checks costs us the claim, not the page. This is what was taken off this one.

We could not confirm any pricing information on the vendor’s own pages as captured, so this page shows none rather than a statement we cannot stand behind. Know more? Tell us
We could not confirm any compliance information on the vendor’s own pages as captured, so this page shows none rather than a statement we cannot stand behind. Know more? Tell us
17 product facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
14 legal facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
2 hosting facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
2 integrations facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
2 support facts could not be confirmed on the vendor’s page as captured and were left out of this page and of the panel’s material. Know more? Tell us
2 sovereignty dimensions could not be confirmed on the vendor’s own pages and are shown as unknown. Know more? Tell us
6 of the readings below were written against an earlier fact sheet — a fact has been corrected, added or pulled since. Until the panel next runs on this product you are reading the older judgement. Know more? Tell us

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Sources (5)

The pages every claim on this page was read from — each one checked, dated, and kept verifiable.

1 Vendor homepage www.gambio.de Checked 5 Oct 2026 +2 earlier captures: 16 Sep 2026, 15 Sep 2026 Details →
2 Security / trust page www.gambio.de Checked 5 Oct 2026 Details →
3 Catalogue & checkout — found from sitemap www.gambio.de Checked 5 Oct 2026 Details →
4 Tax & German legal correctness — found from sitemap www.gambio.de Checked 5 Oct 2026 Details →
5 Extensibility & developer surface — found from sitemap www.gambio.de Checked 5 Oct 2026 Details →