Your new software has to work with everything around it
Most useful software does not operate in isolation. UltraApps builds integrations between new products and the systems customers already depend on.
- We choose technology based on the product, team and business problem
- The stack serves the product — not the other way around
- Stripe
- Twilio
Core technologies
What we use in this category
Best for: Notifications, support
Twilio
SMS, voice and messaging in product workflows.
Best for: Finance automation
QuickBooks
Accounting sync for operational and finance workflows.
Best for: Workplace automation
Google Workspace
Calendar, Drive, Gmail and identity integrations.
Best for: Enterprise workplaces
Microsoft 365
Outlook, Teams, SharePoint and Entra-connected products.
Best for: Ops glue, prototypes
Zapier & webhooks
Lightweight automation and event-driven connections.
What we build
We handle more than the happy path
The API call itself is usually the easy part. Reliable integrations require retries, idempotency, webhook discipline and reconciliation when the world is messy.
- Authentication and token refresh
- Retries and rate limits
- Webhooks
- Idempotency
- Error handling
- Reconciliation
- Monitoring
- CRM and calendar sync
- Payment processors
- REST API clients
FAQ
Questions teams ask
Straight answers on stack choices, fit, and how we engage.
Usually yes. We assess API quality, auth model and rate limits first, then design sync and failure handling around how your operations actually run.
Both. Zapier is fine for lightweight ops glue. Mission-critical paths usually deserve first-party integrations with proper monitoring.
Signatures, idempotency keys, retries, dead-letter handling and reconciliation jobs — so duplicate or delayed events do not corrupt state.
Next step
Discuss an integration
Tell us which systems must talk to each other. We’ll design the workflow end to end.
Discuss my project