Shopify apps and technology
Which Shopify apps does NICCOS publish?
Both apps are listed in the Shopify App Store. Each has a page of its own where you install it.
Best Price Indicator (PAngV)
An app by NICCOS GmbH in the Shopify App Store.
German price law, the Preisangabenverordnung (PAngV), requires a store that advertises a price reduction to show the lowest price of the last 30 days. The app records that price for every variant and displays it through a block in the theme. You set the wording for each storefront language.
Sphen.ai
A joint product of getSichtbar GmbH and NICCOS GmbH.
Sphen.ai audits the product catalogue and storefront signals for gaps in search and AI visibility and drafts changes at field level with the evidence. Your team reviews and approves every change before it is applied and can revert it. The app uses buyer questions to check whether AI assistants such as ChatGPT, Perplexity and Gemini name your store, and it connects Search Console and GA4.
What does a store selling in Germany have to show on reduced prices?
A store that advertises a price reduction in Germany has to show the lowest price of the last 30 days. The rule comes from the Preisangabenverordnung (PAngV). Best Price Indicator (PAngV) records that price for every variant and shows it in the store, so nobody on your team keeps a price history by hand.
Language, currency and tax for the German market are covered by Shopify Markets, which we set up as part of Shopify internationalisation. The price notice is a separate requirement, and an app is the simplest way to meet it. You install it from the App Store and need no project with us.
NICCOS has been a Shopify Plus Partner since April 2022 and is an OpenAI partner. The Shopify Partner Directory lists 19 reviews with a rating of 5.0. We have published 12 case studies from project work.
How do the apps relate to project work?
They are two separate offers. An app from the App Store is a product that solves one task many stores share. Project work starts with your store: a migration, an integration or an app that only your process needs. You can use our apps without being a client of the agency, and a project does not depend on them.
Gusti Leder shows where a product ends and a project begins. The brand sells handmade leather bags and accessories, and its previous Shopware store had no engraving configurator on the product page. We built one as a custom Shopify app. Customers see the engraving on the product image in real time, and the configurator works for every product that can be engraved. The Gusti Leder case study reports a 45% higher conversion rate from improved UX and the configurator. Work of this kind starts with Shopify app development.
Should you run Sphen.ai yourself or have it managed?
Both routes are open. You install Sphen.ai from the Shopify App Store and run it with your team, or you have it set up and managed. The sequence stays the same: the app drafts a change and gives the evidence, and the change is applied only after approval. The app checks ChatGPT, Perplexity, Gemini, Claude, Copilot and Google AI Overviews.
The app does not replace a project. If indexing, canonicals or redirects are unresolved, the work starts with technical Shopify SEO, and content for AI answers is the subject of Shopify GEO. If product data sits in the ERP and does not reach Shopify, system integration comes first. Blankroast is an example of that data work. When the coffee roaster moved from Magento to Shopify Plus, we modelled aroma profile, origin, variety, processing, roast level, strength and acidity as structured metafields fed from the ERP weclapp. The Blankroast case study describes the setup.
Which custom apps has NICCOS built for clients?
These apps run in the client's store only. The case study describes what each one does.
SiroccoClub custom app
A custom app for newsletter management and club benefits. Login-based logic connects registration, loyalty discount and member offers.
Sirocco case studyEngraving configurator for Gusti Leder
A custom Shopify app on the product page. Customers see the engraving on the product image in real time. It works for every product that can be engraved.
Gusti Leder case studyAn app for your process
We build custom apps, app extensions and public apps as project work. First we check whether an existing app is enough.
To Shopify app development
Which technologies does NICCOS work with?
The list names only technologies that our case studies and service pages describe.
Platform
Shopify and Shopify Plus, Shopify Markets for countries, languages and currencies, Shopify POS for physical retail.
Apps and checkout
Custom apps, theme app extensions, Shopify Functions, checkout UI extensions, the Admin API via GraphQL and App Bridge for interfaces in the admin.
Storefront and data
Themes in Liquid, metafields for the details buyers decide on, and structured data following Schema.org.
Connected systems
JTL-Worker Cloud at BlumeIdeal, Pixi at Kanela, weclapp at Blankroast, Plentymarkets at Hairshop Pro and Klaviyo at MYCR7 and Sirocco.
Is one of our apps right for your store?
Then you can install the app
You advertise price reductions
Your store sells in Germany, shows strike-through prices and needs the lowest previous price under the PAngV.
Your catalogue has gaps
Product fields are incomplete and you want to know which details search and AI are missing.
Your team approves changes
Someone on your side reviews the drafts and decides what is applied.
You want to follow mentions
You want to know whether AI assistants name your store when buyers ask.
Then a project is the next step
The process exists only in your business
If no app in the store covers your workflow, the topic is custom development.
To Shopify app developmentIndexing is unresolved
If canonicals, status codes and redirects are not in order, the technical foundation comes first.
To Shopify SEOThe data does not reach the store
If product data sits only in the ERP or PIM, no app has anything to build on.
To system integration
Results from client projects
Every figure appears in the case study, where you can verify it.
European leather brand - custom engraving app, ERP integration, Shopify Markets for DACH, France, the UK, and further European markets.8 weeksGo-live+45%Conversion RateEUDACH, FR & UK focusRead case study
The Swiss premium tea and coffee brand moves to Shopify Plus - with +25% conversion rate, 40,000+ customer records, complete order history, UX continuity, and Sirocco Club structures.12 weeksProject duration+25%Conversion Rate40,000+Customer recordsRead case study
Replatforming an eight-figure barefoot-footwear brand by consolidating OXID (US) and Shopware (international) onto one central Shopify Plus codebase, including a phased US and international launch.6 mo.Project duration~3×Faster time-to-market-50%Cost reductionRead case study
Brands we build for on Shopify.
Groundies, MYCR7 and Gusti Leder are three of thirteen projects we have published with starting point, delivery and result.
Questions about the apps by NICCOS
Do I have to be a NICCOS client to use the apps?
Is Sphen.ai a NICCOS product?
Which AI assistants does Sphen.ai check?
Can a change applied through Sphen.ai be undone?
Can NICCOS build an app that only our store uses?
Install an app or build your own?
We tell you whether one of our apps is enough, whether another app from the store will do, or whether custom development is the right route.