Payments and billing
Acquiring, subscriptions, refunds, reconciliation
- Payme / Click and others
- Visa/Mastercard via provider
- Escrow and payment holds
- Payment webhooks, retries, dedup (idempotency)
- Receipts and fiscalization (if required)
We connect payments, SMS sign-in, maps, chats, CRM and accounting systems, push notifications, and analytics. We set everything up so payments and data are not lost when something fails.
Choose the setup by your use case: start with one provider and expand step by step.
See also sections Features
, Security
-
Launch and SLA
.
Acquiring, subscriptions, refunds, reconciliation
Secure sign-in and account control
Routes, ETA, geofencing, couriers
Chats and notifications for support and operations
Catalog and order synchronization
Media and document storage
Product events and behavioral data
API and application protection
Reliability and scalability
All relevant inbound events pass through idempotency control and a queue, with retries based on exponential backoff. Events are logged and visible in the admin panel. We classify failures (client / provider / network) and send metrics and alerts to dashboards. For critical flows, we enable two-phase confirmation.
We dig into your business model, write the technical specification, define success KPIs and fix the project scope so the budget does not grow.
We build an interactive prototype of the whole app. You test the logic and flows before costly development begins, so logic errors are caught at the start.
We design a modern interface and a UI kit (design system). This keeps the app clean and easy to use as new features are added.
We work in sprints and demo finished features every week. You see real progress, not just reports on paper.
QA engineers check the product on all devices. We handle App Store / Google Play publication and analytics setup.
We do not walk away after release. We provide SLA support (uptime guarantee) and develop the product based on real user data.
Each webhook uses an idempotency key and delivery journal. We use queues and backoff retries, deduplicate events, and track status in monitoring.
Typically 3-7 business days per provider, including capture/refunds, statuses, webhook handling, test cases, and technical documentation.
Yes. We use provider adapters so you can switch providers and balance fees/risk without redesigning your application.
Yes. We deliver GA4/Firebase event schema (screens, parameters, user properties), reporting examples, and BigQuery export setup.
More practice in sections Launch and SLA - Security .
Leave your contact details. We will propose delivery scope, timeline, and provider-specific test checklist.
Working hours: Mon-Fri 09:00-19:00 · Email: hello@axium.uz