How does Zentract help agencies track billable hours?

Zentract lets you start a timer with one click directly from any task. Each time entry is automatically linked to the task, project, and client, so there is no retroactive guessing. You can mark hours as billable or non-billable, and your team's time is always visible in real time.

How is Zentract different from Harvest or Everhour?

Harvest is strong for time tracking, reporting, and invoicing. Everhour is strong when teams want timers and budget alerts embedded inside project management tools. Zentract is built for hourly agencies and contractors that want the full revenue record in one place: tasks, tracked time, project budgets, retainers, invoices, financial health, and revenue recommendations before leakage becomes a write-off.

What do Zentract Revenue Insights help surface?

Zentract analyzes operational signals across tasks, tracked time, project budgets, invoices, and retainers. Revenue Insights help teams spot missed billable work, scope creep, financial health issues, and invoice follow-ups before revenue slips into write-offs.

Can Zentract generate invoices from time tracking?

Yes. Once your team logs time against a client project, you can generate a client invoice directly from those entries. Zentract pulls billable hours automatically, so billing becomes a one-click process instead of a manual reconstruction at month end.

Is Zentract free to use?

Yes. Zentract has a free tier that supports up to 3 team members, 5 clients, and 10 projects, with unlimited time tracking and invoice generation included. No credit card is required.

What types of agencies and teams use Zentract?

Zentract is built for teams that bill by the hour, including design agencies, development shops, marketing studios, consulting firms, independent contractors, and fractional service teams.

Does Zentract prevent scope creep on client projects?

Zentract shows real-time budget consumption per project and uses Revenue Insights to highlight scope risk. As teams log hours, project leads can see when budget burn is moving faster than the work and have the client conversation before the project is already over budget.

Does Zentract have mobile apps?

Yes. Zentract has iOS and Android apps so teams can log time from anywhere, whether they are in a client meeting, on-site, or working remotely.

For agencies and contractors that bill hourly

Stop losing revenue
to time you already
worked.

Zentract brings tasks, timers, budgets, invoices, and Revenue Insights into one operating suite. Capture missed hours, spot scope creep, and protect margin before month end.

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No credit card required.

zentract — Acme Corp / Website Redesign

Client feedback round

Acme Corp · Revision · Billable

1:45

Design system audit

Acme Corp · Design · Billable

02:34:18

Unbilled QA fixes

Acme Corp · QA · Needs review

—

Live timerRecording

02:34:18

Design system audit · Acme Corp

Revenue signal

Unbilled work

Budget threshold

80%

Used byDesign agenciesDev shopsHourly contractorsConsulting firmsFractional teamsMarketing studios

The real cost of disconnected tools

Time logged late is time not invoiced.

Details fade. Entries disappear. By Friday, no one remembers Tuesday's four-hour deep-work session.

Scope creep hides inside normal work.

A few extra calls, revisions, and follow-ups look harmless until the budget is gone and the margin is gone with it.

Financial insight arrives after the damage.

By the time billing is reconstructed, the best revenue-capture decisions were already missed.

Revenue Insights

Know where revenue is
quietly slipping.

Zentract analyzes the operational signal across tasks, time, budgets, invoices, and retainers so hourly teams know what to chase before revenue becomes a write-off.

Missed billable hours

Project budget drift

Invoice aging and cash timing

Utilization and margin pressure

Revenue briefing

This week

Revenue Insights

Revenue capture

$4,860 at risk

Billable work logged but not yet prepared for invoice review.

Scope creep

2 projects trending over

Budget burn is moving faster than open work is closing.

Financial health

14 days average invoice age

One client needs follow-up before cash flow slips again.

Recommended next move

Review Acme's open tasks before approving the next invoice. The project is 82% through budget with several unbilled billable entries.

Why agencies choose Zentract

Built for the revenue moments
time trackers miss.

Harvest makes time easy to invoice. Everhour brings timers and budget alerts into project management tools. Zentract is built for hourly agencies and contractors that need the whole revenue picture: work, budget, invoice, retainer, and revenue recommendation in one place.

More than a time tracker.

Zentract keeps task context, project budgets, billable entries, invoices, and retainers together so every hour has a business reason attached.

More durable than a PM add-on.

Timers inside project tools are useful. Revenue decisions need a system of record that survives tool changes and keeps client, budget, and invoice history intact.

Earlier than month-end reports.

Revenue signals point to missed billables, scope creep, invoice aging, and utilization while there is still time to protect margin.

Time Tracking

Every task
keeps its context.

One click starts tracking. Zentract ties the entry to the task, project, client, and billable status automatically so invoice review starts with evidence instead of memory.

✓One-click timers on any task
✓Billable state on every entry
✓Captured hours stay tied to task and project
✓Log from web or iOS & Android

Active tasks1 running

Scope review call

Acme Corp · Billable

02:34:18

Client feedback revisions

Acme Corp · Billable

1:45:00

Internal QA follow-up

Acme Corp · Non-billable

—

02:34:18

billable entries stay linked to the source task

Budget overviewLive

Website Redesign · Acme Corp82%

Q2 Content Strategy · Bloom44%

Platform Audit · NovaTech107%

Budgeted

240h

Logged

198h

Remaining

42h

Report signalThreshold crossed

Agency health reports surface over-budget projects and uninvoiced billable work.

Budget Control

See the overage
before it happens.

Budget vs actual updates in real-time as time is logged. Zentract can alert at the project threshold and surface over-budget work in agency health reporting.

✓Real-time budget vs actual
✓Budget alerts at your threshold
✓Per-project and per-client views
✓Hours or dollar-based budgets

Invoicing

Invoice from
source, not memory.

Select a billing period. Zentract groups billable time entries by source task and creates a draft invoice you can review, export, or send.

✓Generate draft invoices from tracked time
✓Grouped by source task
✓Billable entries pulled automatically
✓Export PDF or email invoice

Generated invoiceDraft from time

Acme Corp

March 1–31, 2026

INV-0024

Due Apr 14, 2026

Design system audit

14.5 hrs · $150/hr

$2,175

Client feedback revisions

6.25 hrs · $120/hr

$750

Project management

3.0 hrs · $120/hr

$360

Source checkTime entries linked

Total due$3,285

Export PDF →

How it works.

One operating suite for work, billing, and revenue visibility.

STEP 01

Set up a project.

Create a client, add a project with a budget. Add tasks for the work ahead. Takes three minutes.

STEP 02

Track time as you work.

Open a task, hit start. Stop when you're done. Zentract logs it against the client and project, billable or not.

STEP 03

Review insights, then invoice.

Revenue Insights surface missed billables, scope risk, and cash timing. Review the signal, approve line items, and send the invoice.

Free to start.
Scales when you do.

Everything you need to run a small team — no credit card, no 14-day trial cliff. Upgrade when your operation grows.

Free tier

$0/ month

✓3 team members
✓5 clients
✓10 projects
✓Unlimited time tracking
✓Invoice generation
✓iOS & Android apps

Get started

FAQ

Common questions

Everything you need to know before getting started with Zentract.

Every hour you worked
deserves to be invoiced.

Start with the operating suite that helps hourly teams track work, detect revenue risk, and bill with confidence.

Get started

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Every task
keeps its context.

One click starts tracking. Zentract ties the entry to the task, project, client, and billable status automatically so invoice review starts with evidence instead of memory.

✓One-click timers on any task

✓Billable state on every entry

✓Captured hours stay tied to task and project

✓Log from web or iOS & Android

Stop losing revenueto time you alreadyworked.

Time logged late is time not invoiced.

Scope creep hides inside normal work.

Financial insight arrives after the damage.

Know where revenue isquietly slipping.

Built for the revenue momentstime trackers miss.

More than a time tracker.

More durable than a PM add-on.

Earlier than month-end reports.

Every taskkeeps its context.

See the overagebefore it happens.

Invoice fromsource, not memory.

How it works.

Set up a project.

Track time as you work.

Review insights, then invoice.

Free to start.Scales when you do.

Common questions

Every hour you workeddeserves to be invoiced.

Stop losing revenueto time you alreadyworked.

Time logged late is time not invoiced.

Scope creep hides inside normal work.

Financial insight arrives after the damage.

Know where revenue isquietly slipping.

Built for the revenue momentstime trackers miss.

More than a time tracker.

More durable than a PM add-on.

Earlier than month-end reports.

Every taskkeeps its context.

See the overagebefore it happens.

Invoice fromsource, not memory.

How it works.

Set up a project.

Track time as you work.

Review insights, then invoice.

Free to start.Scales when you do.

Common questions

Every hour you workeddeserves to be invoiced.

Stop losing revenue
to time you already
worked.

Know where revenue is
quietly slipping.

Built for the revenue moments
time trackers miss.

Every task
keeps its context.

See the overage
before it happens.

Invoice from
source, not memory.

Free to start.
Scales when you do.

Every hour you worked
deserves to be invoiced.

Stop losing revenue
to time you already
worked.

Know where revenue is
quietly slipping.

Built for the revenue moments
time trackers miss.

Every task
keeps its context.

See the overage
before it happens.

Invoice from
source, not memory.

Free to start.
Scales when you do.

Every hour you worked
deserves to be invoiced.