Time & Billing is time tracking and billing software that lets your team log hours against clients and projects, submit them for approval, and convert approved time into invoices automatically. As timesheet software with a built-in billable hours tracker, it captures effort accurately without the end-of-week guesswork. Linked to your CRM, this time and expense software ties work directly to the right customer and deal, so nothing billable slips away. Ideal as professional services billing, it also works as utilisation tracking software, giving you a clear read on how time is spent and closing the gap between work done and revenue collected.
Finance app · Omnie AI
Tethys: Time & Billing
Time tracking and billing software that logs billable hours against clients and projects, then turns approved time into invoices automatically.
AI at work Time capture prompts, billing narrative drafting and write-off risk flagging
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4+
Connected tools
6
Industries served
What it does
Tethys: Time & Billing, explained.
Key features
- Log billable hours against clients and projects.
- Submit and approve timesheets in a simple flow.
- Turn approved time into invoices automatically.
- Link every hour to the right CRM customer.
- Capture all billable work and reduce revenue leakage.
AI at work
AI at work in Tethys: Time & Billing.
The moments where the AI does the work your team used to do by hand.
Time capture prompts
AI reconstructs likely billable time from calendar, email, and CRM activity and suggests entries, replacing the manual memory-jog of filling in a timesheet.
Billing narrative drafting
AI writes clear invoice line descriptions from raw time entries, a job a biller used to write up by hand.
Write-off risk flagging
AI flags time likely to be written off (over-budget, low realisation) early, instead of finance discovering it at invoicing.
More on Tethys: Time & Billing
Time tracking and billing software in one flow
Time & Billing is time tracking and billing software that runs from logged hour to paid invoice. Your team records time against the right client and project, submits it for approval, and approved entries become invoices automatically.
As timesheet software with a reliable billable hours tracker, it captures effort as it happens rather than reconstructing the week from memory. Linked to your CRM, every hour ties back to the customer and deal it belongs to.
Built for professional services billing, this time and expense software doubles as utilisation tracking software. You see how capacity is really spent, and nothing billable slips through the gap between work delivered and revenue collected.
See it in action
Watch Tethys: Time & Billing in 90 seconds.
A quick walkthrough of how Tethys: Time & Billing works and how teams use it day to day.
Tethys: Time & Billing, product tour
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Connects with your tools
Works with the systems you already use.
Tethys: Time & Billing connects to Asana, Bitrix24, QuickBooks, Xero out of the box, and through Omnie AI it works with the CRM, project, finance, document, communication and marketing tools below.
CRM
Projects
Finance
Documents
Communication
Marketing
Compliance & standards
Built to meet the standards your sector expects.
Tethys: Time & Billing is built on the Omnie AI platform, so the security, data-protection and accessibility standards below are handled as standard, here’s what each one covers.
UK GDPR & EU GDPR
How personal data is handled. A data-protection lead, mapped personal data (ROPA), clear privacy notices, Data Processing Agreements with vendors, and defined subject-access (DSAR) and breach procedures.
Data Protection Act 2018 (UK)
The UK’s implementation of GDPR. ICO registration and data-protection fee, UK GDPR controls applied across the app, and records of processing activities kept up to date.
SOC 2 (Type II)
Independent assurance over security, availability and confidentiality. Controls are operated over a 3–12 month window and audited by an independent CPA firm, who issue the SOC 2 Type II report.
WCAG 2.2 AA / Accessibility
Accessibility for all users. The site and app are audited against WCAG 2.2 AA, aligned with the Equality Act, ADA and EN 301 549, issues are remediated, and testing is carried out on an ongoing basis.
Built on Omnie AI
Four things every app gets as standard.
Customised to Fit
We build your applications to suit your individual requirements. We connect them to the tools you already use, then support you to develop and improve your applications.
AI Built-in
All apps have AI built in that makes your business run better, streamlining your processes, freeing up your team and helping you deliver a better experience to every customer.
Secure & Compliant
Your apps run on secure, managed infrastructure. Your data and your customers’ data stay protected, and all apps are compliant with recognised industry standards.
Dedicated Support
Your Customer Success Manager learns your business to understand your needs and is available by phone or messenger to answer questions and provide advice.
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Businesses we work with
Trusted by teams around the world.
Build Tethys: Time & Billing for your business.
Start from this template and customise it to your exact needs with Omnie AI, hosted, secured and supported by our team.
FAQs
Tethys: Time & Billing, common questions.
What does Tethys: Time & Billing connect to? +
Tethys: Time & Billing works with Asana, Bitrix24, QuickBooks, Xero, and through Omnie AI it can connect to other CRM, project management, finance, document and communication tools you use.
Can we customise Tethys: Time & Billing to how we work? +
Yes. Tethys: Time & Billing is a starting template, with the Vibe Code feature in Omnie AI you can change the fields, logic, integrations and design to fit your exact process, with our team on hand whenever you need them.
Is our data secure? +
Security is built into the Omnie AI architecture from the ground up, so your data and your customers’ data are protected by a structured, proven approach rather than the gaps self-built apps leave behind.
Do you host and maintain Tethys: Time & Billing? +
Yes. We host your app on secure, managed infrastructure with a staging environment and continuous backups, so it stays fast, available and protected with nothing for you to manage.
What support do we get? +
Our team of experienced developers is on hand throughout. If you hit problems building, or your app ever causes issues, we can step in to diagnose and fix them for you.
Which industries is Tethys: Time & Billing for? +
Tethys: Time & Billing is used by teams across Construction, Financial Services, Legal, Marketing & Agencies, Professional Services and Technology & SaaS, and adapts to the way your business works.