S3SMART SOLUTIONS
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Apps for people who still use clipboards.

We don't build design awards — we build tools your team uses daily. Offline-first, touch-friendly, no frills.

from 9,800 € · MVP in 6 weeks
App Development OWL · iOS Android Web · Mid-sized Business

Cross-platform

One codebase → iOS, Android, Web, Desktop. No double development, no double bugs.

Production-ready

Offline mode, robust against network outages, large touch targets for gloves. Not iOS beauty patterns.

Interfaces ready

SAP, DATEV, OPC UA, REST, GraphQL. We talk to everything your backend can.

How it works

Four steps until your problem is solved.

01
01 · Brief

Get to know each other

15-min call or on-site appointment. You tell us the problem, we listen and ask questions.

02
02 · Plan

Concept + Quote

Within 5 working days, you'll receive a tangible concept with a fixed price or hourly range.

03
03 · Build

On-site Implementation

We are on the construction site, in cabinet building, or on the code — depending on the phase. Weekly status.

04
04 · Deliver

Acceptance + Training

Clean handover, training of your team, digital documentation. We remain reachable afterwards.

Case · Craft Business

Work slips digital · 8 hours per week saved.

Replacement for the pad in the glove compartment. Technicians record times, material, and photos. Sync to invoicing software.

8h/w
Time savings
6w
Development
14
Technicians active
Work slips digital · 8 hours per week saved.
FAQ

Frequently Asked Questions

Hosting?+

Vercel + Supabase as standard. On-prem and own servers possible.

How long?+

MVP in 6 weeks, productive in 10–14. Iterative with weekly approvals.

Where do the designs come from?+

From the same engineer who builds the app. No agency ping-pong.

App Stores?+

We take care of Apple/Google developer accounts, publishing, and updates.

Google Business Profile
S3-Schmelz smart solutions · Versmold
4,9
(87 reviews)
Markus L.
Markus L.
Oktober 2025

Fabian rewired our entire workshop. Clean work, honest communication, kept the deadline. That's rare nowadays.

verified via Google Business
Your next step

5 minutes for your quote. And then?

The generator below immediately gives you a price range and a PDF. If it fits, we'll call you back personally.