BillDesk
Offline invoicing software for freelancers on Windows and Mac.
Developer Tools·Analytics·Productivity·Finance·Sales & CRM
About
BillDesk is an all-in-one desktop application designed specifically for freelancers and small businesses to handle invoicing, time tracking, analyzing reports regularly, client & project management and expense management. It allows users to generate professional PDF invoices, track billable hours, log mileage, and monitor profit and loss through comprehensive reports without ever sending financial data to the cloud.
The software is built for individuals who want a focused, local-first workspace to manage clients and project rates while maintaining complete data privacy. Unlike subscription-based tools, BillDesk operates entirely offline and offers a permanent solution for keeping business records organized on a single device.
What sets BillDesk apart is its strict commitment to local data storage and a straightforward pricing model. Users can download the app for a free seven-day trial with all features unlocked, followed by a one-time lifetime license purchase with no recurring monthly fees.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
If they know they're going to see bad metrics, they're not going to open your app and they're going to churn. It doesn't mean that we shouldn't give people accurate information — I'm just saying don't make that the only thing your users see if your goal is to retain them.
Shaming users for bad health metrics guarantees churn — redirect attention rather than confronting failure
Paloni argues that health apps built around goal completion and metric tracking systematically churn their users: someone who had a terrible night's sleep or skipped the gym will avoid opening an app that will surface those failures as the first experience. Welltory's design principle is to shift user attention toward other data points alongside the bad metrics. The framing is not about hiding truth but about sequencing: a tired user at the end of a hard day cannot be recovered by confrontation, but can be retained by offering something useful alongside the bad news.
you would never hire a uh human employee and then not give them a brief on the type of tasks that you want to do right you wouldn't hire an agency and say um you you make up the marketing campaign I don't care you know you would say okay here's the brief here's the kind of thing I'm looking for
Prompt principles are just manager onboarding: brief, format, examples
The same instincts that make a good manager make a good prompter: give clear direction, specify the format (JSON, bullets, paragraph count), supply examples of past good work, inject knowledge the model doesn't have, and state opinions the average person wouldn't. These principles survived the GPT-3 to GPT-4 jump and will likely outlive GPT-5.
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