--- title: "How we build apps at Sellora Group" description: "The principles behind Sellora Group SaaS apps: one app for one problem, running in the browser, 24/7 monitoring, backups and an API." canonical_url: "https://sellora.group/en/blog/how-we-build-apps-at-sellora-group" last_updated: "2026-10-31T02:14:09.322Z" locale: en meta: author: "Sellora Group sp. z o.o." "og:description": "The principles behind Sellora Group SaaS apps: one app for one problem, running in the browser, 24/7 monitoring, backups and an API." "og:image": "https://sellora.group/_og/d/c_Sellora%2Ctitle_How%2Bwe%2Bbuild%2Bapps%2Bat%2BSellora%2BGroup%2Cdescription_~VGhlIHByaW5jaXBsZXMgYmVoaW5kIFNlbGxvcmEgR3JvdXAgU2FhUyBhcHBzOiBvbmUgYXBwIGZvciBvbmUgcHJvYmxlbSwgcnVubmluZyBpbiB0aGUgYnJvd3NlciwgMjQvNyBtb25pdG9yaW5nLCBiYWNrdXBzIGFuZCBhbiBBUEku%2Ceyebrow_Company%2Blife%2Cp_Ii9lbi9ibG9nL2hvdy13ZS1idWlsZC1hcHBzLWF0LXNlbGxvcmEtZ3JvdXAi%2Cs_jsJG1VR3W6xf_dXc.png" "og:image:height": "630" "og:image:type": image/png "og:image:width": "1200" "og:title": "How we build apps at Sellora Group" "twitter:description": "The principles behind Sellora Group SaaS apps: one app for one problem, running in the browser, 24/7 monitoring, backups and an API." "twitter:image": "https://sellora.group/_og/d/c_Sellora%2Ctitle_How%2Bwe%2Bbuild%2Bapps%2Bat%2BSellora%2BGroup%2Cdescription_~VGhlIHByaW5jaXBsZXMgYmVoaW5kIFNlbGxvcmEgR3JvdXAgU2FhUyBhcHBzOiBvbmUgYXBwIGZvciBvbmUgcHJvYmxlbSwgcnVubmluZyBpbiB0aGUgYnJvd3NlciwgMjQvNyBtb25pdG9yaW5nLCBiYWNrdXBzIGFuZCBhbiBBUEku%2Ceyebrow_Company%2Blife%2Cp_Ii9lbi9ibG9nL2hvdy13ZS1idWlsZC1hcHBzLWF0LXNlbGxvcmEtZ3JvdXAi%2Cs_jsJG1VR3W6xf_dXc.png" "twitter:title": "How we build apps at Sellora Group" --- > Index of every page on this site: [llms.txt](https://sellora.group/llms.txt) **Company life** # **How we build apps at Sellora Group** **Sellora Group team** October 23, 2026 · 1 min read **Sellora Group builds several apps for different industries. To make each one equally reliable, they all follow the same principles.** ## **One app, one problem** Each app solves one specific problem: Sellora handles sales at the counter, and Halokurs supports dispatchers at taxi companies. That is why each has its own name, logo and website, linked to the group by the "a Sellora Group product" mark. ## **The browser instead of installation** Our apps run as SaaS, in the browser. Customers don't buy a server or install updates. The only exception is what has to talk to hardware: Sellora connects to the fiscal printer through a lightweight program (the connector). ## **Shared foundations** - 24/7 service monitoring, - regular backups, - encrypted connections (HTTPS/TLS), - data processed in line with the GDPR, - an API and webhooks to connect other systems. ## **We say what works today** On the website and in conversations we describe what an app can do now. Features we are working on are called plans, and we give dates only when we are sure of them. ## **Customers shape the next features** We plan new features based on conversations with the businesses that use our apps. We answer questions within 1 business day, and customer feedback goes to the team that develops the app. ## **Frequently asked questions**
### **Do Sellora Group apps have an API?** Yes. Our apps have an API and webhooks to exchange data with other systems, such as accounting or an online shop.
**Author** **Sellora Group team** Sellora Group is a Polish technology company from Mława. We build SaaS apps for businesses: Sellora, a cloud POS system, and Halokurs, software for taxi companies. ## **Related posts** [**All posts**](https://sellora.group/en/blog) - **Guides**Oct 28, 2026 · 4 min read ### [How to choose a POS system: a guide for hospitality, retail and services](https://sellora.group/en/blog/how-to-choose-a-pos-system) What to look at when choosing a sales system: the fiscal printer, payments, reports, integrations and SaaS costs. Plus a list of questions for vendors.**Read more ** - **Sales & POS**Oct 26, 2026 · 2 min read ### [5 signs your business needs SaaS software](https://sellora.group/en/blog/5-signs-your-business-needs-saas) Spreadsheets, manual reports, a technician for every update and the fear of a computer failure. Five situations where a cloud app saves time and stress.**Read more ** - **Technology**Oct 25, 2026 · 1 min read ### [Data security in SaaS apps: the basics](https://sellora.group/en/blog/data-security-in-saas-applications-the-basics) Encryption, backups, access control, monitoring and the GDPR. What they mean in practice and what to ask a cloud app vendor.**Read more ** ## **Stay up to date.** Once a month: news from Sellora Group and practical tips on sales and running a business. By subscribing, you accept the Privacy Policy. We track newsletter opens and link clicks to improve it. You can unsubscribe at any time. ```json {"@context":"https://schema.org","@graph":[{"@id":"https://sellora.group/#website","@type":"WebSite","description":"Sellora Group is a Polish technology company from Mława. 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