Work behind this service

Designed and shipped

Own app · iOSLive on the App Store

Zoomi Kids

A learning game for preschoolers with no failure states, no ads and no accounts. It works fully offline and winds down with a goodnight scene when the parent-set session limit is reached.

  • No failure states: difficulty adapts instead
  • Parent-set session caps with a goodnight scene
  • No ads, no accounts, fully offline
Own app · iOSLive on the App Store

Mawla: Quran, Prayer Times

A daily Islamic companion: location-aware prayer times with adhan notifications, the Quran, a qibla finder, and a voice assistant that answers everyday questions with sourced references.

  • Prayer times, adhan, Quran and qibla in one app
  • A calm, focused interface
  • Turkish and English
Client · ManufacturingIn production · handed over Sep 2026

SPSTARPLAST Manufacturing ERP

A production ERP for an insulation anchor manufacturer: 16 modules and 50+ screens in Turkish, covering sales, production, the mold shop, quality, purchasing, shipping and inventory.

  • 16 modules and 50+ screens in Turkish
  • Each user sees only their functional areas
  • Production planning grid per machine and shift
What you can hire for

What design covers here

Flows before screens

Map what each user is trying to get done, then design the fewest screens that do it.

Screens built in code

Designs become working React or SwiftUI screens early and are tried with real data.

Dense business screens

Grids, filters and forms for people who use them all day, like the ERP's production planning grid.

Designing for children

Zoomi Kids has no failure states, no ads and no accounts, and ends with a goodnight scene when time is up.

Bilingual and right to left

Turkish and English layouts, and Arabic right to left in 1in46.

Questions

Frequently asked questions

Do you only design, or also build?

Both. The same person designs and builds, so there is no hand-off where details get lost.

How do you design for children?

Carefully, and with limits. Zoomi Kids has no failure states, no ads and no accounts, works offline, and winds down when the parent-set session limit is reached.

Can you redesign an existing app or system?

Yes. A redesign starts from how people use the current one: what they use most, where they get stuck, which screens they avoid.

Need it designed and built?

Share what exists today, even if it is a spreadsheet or a sketch.

Or call (786) 788-1030

Savas Tutumlu

Who builds it

Savas Tutumlu

Founder & CEO, Stratagem Systems

Started the studio in Houston, TX in 2023 and now works from Istanbul. 30 projects shipped since.