Online invoicing solution on Google App Engine : eslip.com

[Louis Le Coeur]

Hi everyone,

I have seen other people mention invoicing solutions they were building on App Engine, so let me quickly introduce mine : eslip.com

It's a comprehensive invoicing, expense management & time tracking solution that can do pretty much everything the best competition does (and even a bit more).

A good showcase of what App Engine (Python / GQL) can do with a little bit of tweaking... For instance, accounting subtotals (e.g. how much you billed this month, per accounting category, sales rep etc.) are pre-calculated in JSON dictionaries to avoid excessive fetching or indexes, recurring invoices are sent thanks to cron jobs and tasks etc.

I would love your feedback ( you can quickly create an account at https://app.eslip.com )

Best, Louis