QA & Testing

Manual and automated testing that ships a stable, bug-free app.

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Ships only when every test passes

Manual and automated testing across real devices before your users see it.

QA isn’t a final glance — it’s every flow, tested on real devices. We check add-to-cart, payment, push, offline mode and deep links on iPhone, Pixel, iPad and Galaxy, so a stable, bug-free app reaches the store.

How it works
  1. 1

    Test plan

    We map every critical flow and edge case, and the real devices and OS versions to cover.

  2. 2

    Manual testing

    Hands-on testing across real iPhone, Pixel, iPad and Galaxy devices — the way users actually tap.

  3. 3

    Automated e2e

    Automated end-to-end tests for core flows, so every build is re-checked without missing a case.

  4. 4

    Regression & sign-off

    A full regression pass before each release — the app ships only when everything is green.

Brands that trust Celion.

TopBrains Media Park Express 24 Elmakon Olcha MyTaxi Workly NASP PraeLegal EMU University TezTaxi UFarmer Mavera Umumiy Distribution Riders Yordamda TopBrains Media Park Express 24 Elmakon Olcha MyTaxi Workly NASP PraeLegal EMU University TezTaxi UFarmer Mavera Umumiy Distribution Riders Yordamda

From our blog

Guides and insights to help you get more from your website.

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What our clients say

Real stories from the businesses we build for.

Sherdor Mustafoyev
Sherdor Mustafoyev CEO, Olcha.uz
Odoo & Celion
Odoo & Celion Event
Saodat Mammedova
Saodat Mammedova CEO, Umumiy_uz

Frequently Asked Questions

Yes — native iOS and Android, plus PWA when a single cross-platform build fits better. We advise the right approach for your goals.

Yes. We handle publishing, store assets and the review process end to end.

You do — source code, developer accounts and all assets are registered to you and handed over.

Yes — updates, OS compatibility, monitoring and improvements are all covered.

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