SimpleWorklog
sevDesk
Clockify
GrandTotal
Summit Finance
Invoice Ninja
InvoicePlane
Invoicera
Klartab
Toggl
Harvest
Clockify
Timesheet.io
Time Doctor
RescueTime
TimeKnot
SimpleWorklog is a software for efficiently tracking working time, creating invoices and sharing billing-relevant information with clients. Overarching and client/project-specific dashboards with statistics ensure you never lose track.
Unlike common accounting or invoicing solutions such as Lexoffice, sevdesk & co or agency software like Troi or helloHQ, SimpleWorklog focuses on the functionalities that matter in day-to-day work. Efficiency and user-friendliness are SimpleWorklog's top priority. SimpleWorklog eliminates the need to build and maintain a complex network of order numbers, cost centers & clients, giving you the freedom to focus on the core of your work and your clients.
Klartab is two opinionated tools built around one idea: do the obvious thing well, then stop.
Klartab Time is a timesheet tool for freelancers who bill by the hour. There's no live timer, no activity tracking, no bloat - just a clean monthly calendar where you log hours per project, export a PDF, and get paid. It handles multiple clients, currencies, and rates without any conversion surprises. Hour caps per work order nudge you before you accidentally over-bill a retainer. Once a month is invoiced, you lock it - server-side, no edits, no surprises.
Klartab Agency is the companion app for staffing agencies and boutique placement shops. Define work orders centrally, invite your contractors, and every submitted timesheet lands in one filtered inbox - defaulted to what's pending. Review with a full time-entry breakdown and a comment thread, approve to lock the period, or reject with a reason so the freelancer can resubmit in place. No invoicing, no payouts - deliberately out of scope.
The two tools work together but don't depend on each other. Use either one in isolation. Connect both, and any freelancer placed through your agency gets Klartab Time at no extra cost.
Both products are EU-hosted (Belgium), GDPR-ready, and built without behavioural advertising. Your data stays yours - and deleting your account is a one-click cascade.
SimpleWorklog
KlartabSimpleWorklog's answer
Choose SimpleWorklog if you want a simple, focused tool for time tracking and invoicing without the complexity of large all-in-one systems. Its key advantage is the client dashboard: clients can securely view invoices, tracked work, and even upcoming billable efforts before they are invoiced. This creates uncommon transparency, reduces billing disputes, and builds trust.
In short: less complexity for you, more clarity for your clients.
Klartab's answer:
Choose Klartab if you want tools that respect your time and your data, without the noise.
SimpleWorklog's answer
SimpleWorklog focuses on the essentials: time tracking, project management, and billing โ without the complexity of large ERP or HR systems. Its standout feature is the client dashboard. Users can give clients secure access to view invoices, track project activity, and see billable work before an invoice is issued. This creates unprecedented transparency, reduces billing questions, and helps build trust.
SimpleWorklog keeps service businesses organized while keeping clients informed.
Klartab's answer:
Klartab is built around a single philosophy: do the obvious thing well, then stop. Unlike bloated all-in-one tools, Klartab offers two deliberately focused products โ Klartab Time for freelancers and Klartab Agency for staffing agencies โ each solving one problem without scope creep.
SimpleWorklog's answer
The primary audience of SimpleWorklog is freelancers, consultants, and small service-based teams who bill their work by time or project. More specifically, it fits people who:
work directly with clients (not internal corporate workflows)
need simple time tracking linked to invoicing
want to avoid complex ERP or HR systems
value clear communication and transparency with clients
Typical users are developers, designers, agencies, and consultants who want a lightweight system that helps them track work and get paidโwhile keeping clients continuously informed through the dashboard feature.
Klartab's answer:
Klartab serves two distinct audiences that often work together:
Freelancers (Klartab Time) Independent contractors who bill multiple clients at different rates and currencies. Specifically: - Mixed-client freelancers who need clean per-project PDF reports at month-end without manual spreadsheet work. - Retainer-heavy contractors on fixed-hour engagements who need cap tracking to avoid over-billing. - Freelancers placed through staffing agencies who need a simple way to submit timesheets for approval.
Staffing & Placement Agencies (Klartab Agency) Boutique agencies (typically 5โ30 contractors) that place freelancers with end clients and need to manage the time-approval workflow centrally. This includes working agency owners who both manage their teamโs submissions and log their own hours as a placed freelancer.
SimpleWorklog's answer
The story behind SimpleWorklog comes directly from my own experience working as a freelance web designer and layout artist for several years. During that time, I worked closely with long-term clients who trusted me enough to assign projects without asking for a detailed cost estimate upfront. In most cases, they only saw the actual price once the invoice arrived. Because of the strong, long-standing relationships, this approach worked well and there were rarely any issues.
However, over time I felt that something important was missing: transparency during the process itself. I wanted my clients not just to trust the final invoice, but to actually see what was happening along the wayโwhat work was being done, and what would likely be billed next, before the invoice was ever created.
At the same time, I found most existing bookkeeping and time-tracking tools to be overly complex. They were packed with features designed for much larger organizations, while my own freelance work only required a small, focused set of functions.
SimpleWorklog was born out of these two frustrations:
The result is a tool that keeps things deliberately simple, while introducing a key idea I always wanted in my own freelance work: Clients should not only receive invoicesโthey should understand them before they arrive.
Klartab's answer:
Klartab was built out of a frustration with tools that do too much. The founding philosophy is simple: identify the one obvious thing a tool should do, do it well, and stop there.
Klartab Time started as a timesheet tool for freelancers who were tired of live timers, activity tracking, and surveillance-style software. The goal was a clean, manual log โ hours per project, your rate, a PDF for the client โ without any of the noise.
Klartab Agency followed as the natural companion for the agencies that place those freelancers. Instead of chasing submissions over email and reconciling spreadsheets, agencies get a purpose-built inbox with approve/reject workflows, comment threads, and period locking.
Both products share the same values: EU-hosted, GDPR-ready, no behavioural advertising, transparent flat pricing, and a deliberate refusal to expand scope beyond whatโs needed. The Klartab suite is built for people who want software that gets out of the way.
Klartab's answer:
Klartab is built on Google Cloud infrastructure:
The web app is fully responsive and works well on mobile browsers. Native iOS and Android apps are on the roadmap.
Klartab's answer:
Klartab is an early-stage product and does not publicly list named customers. The typical customers are:
sevDesk - Small business invoicing and accounting software.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Clockify - Simple and free time tracker. Perfect for small and mid-sized businesses as well as freelancers. Unlimited projects and users, unlimited productivity. Get all the premium functionalities, completely free.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
GrandTotal - Create invoices and estimates on your Mac
Summit Finance - Summit is a modern, self-hostable invoicing and financial management application designed for freelancers, small businesses, and agencies. Create professional invoices, track expenses, generate financial reports, and more.