Retainer Burn Log.
Already built.
Our idea search suggested this for marketing agencies, then checked it against what already exists. The search found it covered, so we dropped it.
Is there already an app for Retainer Burn Log?
- Verdict
- Already built
- Why we dropped it
- FunctionFox already tracks hours against retainer budgets in real time for agencies.
- What the search found
- FunctionFox functionfox.com
Agency retainer software that automates projects, tasks, costs and time against retainer budgets.
- FunctionFox functionfox.com
- Found while researching
- Ideas for marketing agencies, 29 September 2026
Treat this as a strong first pass, not a final verdict. Open the link and judge for yourself.
Taken does not mean closed.
The broad version of this idea exists. A narrower one, for a specific buyer, city or step in the work, might not. Run the free search with what you know and who you can reach. It drops what is taken and shows what is still open.
Still open for marketing agencies
These survived the same search.
Scope Creep Tracker
Watches agency tasks, hours and messages against the signed scope, flags out-of-scope requests, and drafts the change order for the account manager to send.
WhatsApp Brief Parser
Turns client briefs sent over WhatsApp and email into one structured job ticket for the production team.
Vendor Brief Relay
Sends freelancer and vendor briefs with the exact assets and deadlines, then chases status until delivery.