How to Build a Time Tracking App with Bubble

Time tracking apps give teams an accurate record of hours worked across projects, tasks, and clients so billing, payroll, and resource reporting reflect real work rather than estimates. Bubble's visual development environment lets you build a custom time tracking app with billable hour separation, timesheet approval, and client billing integration without writing code.

Key Takeaways

• Project and task-level tracking: Time entries link directly to projects and tasks so managers can see exactly where team hours are being spent.
• Billable vs. non-billable split: Entries are flagged as billable or non-billable at submission so client invoices only include authorized chargeable hours.
• Timesheet approval workflows: Submitted timesheets route to managers for review and approval before hours are locked for billing or payroll.
• Overtime detection: Backend workflows compare weekly totals against thresholds and flag overtime entries for HR and payroll review.
• Client billing integration: Approved billable hours export or push to invoicing tools so billing teams avoid manual data re-entry each cycle.
• Build cost range: MVP time tracking apps on Bubble typically start around $14,000 depending on feature scope and integration needs.

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What Data Architecture Does a Bubble Time Tracking App Need?

A Bubble time tracking app requires six data types: Employee, Project, Task, TimeEntry, Timesheet, and ClientBillingRecord. These types together support entry logging, project allocation, approval routing, and billing exports in one connected system.

Structuring these types before building any page prevents duplicate entries, billing errors, and approval workflow gaps that are expensive to fix after launch.

• Employee type: Stores name, role, department, billing rate, manager reference, and default billable status for each team member.
• Project type: Holds project name, client reference, budget hours, billing type, project manager, and status for filtering time entries.
• Task type: Stores task name, parent project, estimated hours, assignee, and status so entries can be tracked at a granular work level.
• TimeEntry type: References Employee, Project, Task, date, hours logged, billable flag, description, and submission status for each entry.
• Timesheet type: Groups TimeEntry records by employee and period, storing total hours, billable total, approval status, and approver reference.
• ClientBillingRecord type: Stores client reference, period, approved billable hours, rate, total amount, and export status for invoice generation.

See Bubble apps built across industries to understand how time tracking and billing tools structure these data types in production.

How Do You Build Time Entry Logging in Bubble?

Time entry logging in Bubble uses a daily entry form where employees select a project and task, enter hours, add a description, and set the billable flag. A backend workflow creates the TimeEntry record and links it to the active Timesheet for that period.

Using a server-side record creation workflow rather than client-side saves prevents duplicate entries from double-clicks or slow connections.

• Daily entry form: Employees select project, task, date, hours, billable flag, and enter a short description before submitting the entry.
• Active timesheet check: On submission, the workflow finds or creates the active Timesheet for the employee and period before linking the entry.
• Billable default: The billable flag auto-populates based on project billing type but employees can override it when submitting non-billable hours.
• Timer mode: An optional start and stop timer captures exact duration and populates the hours field automatically when the timer is stopped.
• Entry edit window: Employees can edit their own TimeEntry records within the current period; locked entries after approval are read-only.
• Daily summary: A repeating group on the entry page shows all of that employee's entries for the selected date with running totals displayed.

Bubble's privacy rules and data access controls ensure employees can only view and edit their own time entries while managers see their full team's submissions.

How Do You Build Timesheet Approval Workflows in Bubble?

Timesheet approval uses a submit-and-route workflow: employees submit their Timesheet at period end, which triggers a notification to their manager, who reviews entries and either approves or returns the timesheet for corrections.

Locking entries after approval prevents retroactive changes that would create discrepancies between approved timesheets and client invoices.

• Submit timesheet: A submit button on the timesheet page sets status to Pending and sends a notification with a review link to the manager.
• Manager review view: Managers see a list of pending timesheets with employee hours broken down by project, task, and billable status.
• Approve action: Clicking approve sets Timesheet status to Approved, locks all linked TimeEntry records, and triggers the billing export workflow.
• Return for correction: Managers can add a comment and return the timesheet to Draft status so the employee can fix and resubmit entries.
• Overtime flag: During approval, the workflow checks if total weekly hours exceed the threshold and flags the timesheet for HR review.
• Approval audit trail: Each approval or return action logs the approver name, timestamp, and any comments to the Timesheet record for compliance.

Overtime flags surface on a separate HR dashboard view so people operations teams can review and action them independently from normal approvals.

How Do You Build Client Billing Integration in Bubble?

Client billing integration aggregates approved billable hours from Timesheet records, creates a ClientBillingRecord per client per period, and either exports a CSV or pushes the data to an invoicing tool via API connector.

Automating the billing aggregation step eliminates manual hour tallying and reduces the risk of missed billable time or incorrect rates in client invoices.

• Billing aggregation workflow: On timesheet approval, a backend workflow sums approved billable hours by client and creates or updates the ClientBillingRecord.
• Rate application: The workflow multiplies billable hours by the Employee billing rate and stores the calculated amount on the ClientBillingRecord.
• Billing review dashboard: Finance teams see all ClientBillingRecords for the period with client totals, hours breakdown, and export status.
• CSV export: A one-click export converts the ClientBillingRecord data to CSV formatted for upload into the client's invoicing or accounting system.
• API push: Bubble's API connector can push approved billing data directly to QuickBooks, Xero, or FreshBooks without manual CSV handling.
• Invoice status tracking: After export or push, the ClientBillingRecord status updates to Exported so finance knows which clients have been billed.

Choosing a Bubble pricing plan that supports API connector usage is essential if automated billing push to external invoicing tools is a core requirement.

How Much Does It Cost to Build a Time Tracking App on Bubble?

A Bubble time tracking app costs between $14,000 and $40,000 depending on scope, with MVP versions covering entry logging, timesheet approval, and a basic reporting dashboard.

• MVP scope: Covers daily time entry forms, project and task linking, billable flag, timesheet submission, and manager approval routing.
• Full build scope: Adds timer mode, overtime detection, client billing aggregation, CSV export, API invoicing push, and time analytics.
• Bubble hosting cost: A time tracking app with multiple teams typically runs on the Growth plan at $119 per month or higher for production use.
• Maintenance budget: Allocate 10 to 15 percent of build cost annually for new project types, rate changes, and integration updates.

Total cost of ownership is considerably lower than licensing dedicated time tracking and billing software with comparable workflow depth and customization.

What Are the Limitations of Building a Time Tracking App on Bubble?

Bubble handles time entry logging, timesheet approval, and basic billing exports well, but native mobile offline entry, complex payroll push, and high-volume analytics have platform constraints worth understanding.

Knowing these limits before scoping prevents mid-project surprises when specific features require third-party services or workarounds beyond Bubble's native toolset.

• Offline mobile entry: Bubble requires an internet connection; field workers who need to log time offline cannot submit entries without signal.
• Payroll auto-push: Direct real-time integration with payroll platforms like ADP or Gusto requires custom API work with reliability tradeoffs.
• Advanced analytics: Complex time analytics such as forecasting utilization trends require external BI tools integrated via Bubble's API connector.
• Native mobile app: Bubble produces responsive web apps; a fully native iOS or Android time tracking experience requires a different build approach.

Review Bubble's native vs. integrated capabilities and Bubble at high traffic and data volume when planning for large teams. Teams needing native mobile offline entry may find exploring alternatives to Bubble worth doing before committing.

Conclusion

Bubble is a practical choice for time tracking apps that need entry logging, project allocation, timesheet approval, and billing exports without a lengthy engineering cycle. The data structure and workflow logic are well within Bubble's reliable range.

Building the TimeEntry and Timesheet data types correctly before creating any approval workflows prevents logic errors that become costly to fix after teams start submitting real hours.

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Bubble Experts You Need

Hire a Bubble team that’s done it all—CRMs, marketplaces, internal tools, and more

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Build Your Time Tracking App with Bubble

At LowCode Agency, we build time tracking applications on Bubble that handle time entry logging, timesheet approval, billable hour tracking, and client billing integration as one complete platform.

• Data architecture: Employee, Project, Task, TimeEntry, Timesheet, and ClientBillingRecord types structured for accurate tracking and billing exports.
• Entry logging workflows: Daily entry forms, timer mode, active timesheet linking, billable flag logic, and edit-window controls built in.
• Approval routing: Submit-and-notify flow, manager review view, overtime flagging, return-for-correction, and locked-entry audit trail included.
• Client billing integration: Billing aggregation, rate application, CSV export, and API push to QuickBooks, Xero, or FreshBooks configured.
• Reporting dashboards: Billable versus non-billable summaries, project hour totals, overtime reports, and client billing review views.

We have delivered 350+ products for clients including Coca-Cola and American Express. Bubble development services cover time tracking builds from architecture through production launch; most engagements start around $14,000 USD.

If you are serious about building a time tracking app on Bubble, contact us to plan your build.