Solution · Voice and music AI
Audio generation is costly to give away.
Voice and music products give out free minutes or credits. Darkmeter keeps those with one person instead of one email.
What you are seeing
Who keeps collecting free minutes?
Free minutes are easy to collect again by signing up with a new address, and each extra minute is generation you pay for.
- Free minutes get collected again with every new address.
- Each extra minute is generation you pay for.
- Minutes do not fit a plain credits meter.
- A hard block feels harsh for someone who wanted a few more minutes.
Along the whole flow
From free minutes to the cap
Darkmeter sits at four points along the way. Each one is a call your backend already makes, and a decision you control.
1 · Signup
A new listener gets free minutes.
Checks whether this device already has accounts.
Signup GuardAllow3 · Repeat signup
The same person returns with a new address.
Gives a smaller grant, not a hard stop.
Signup GuardLimit4 · The cap
Minutes across accounts reach the cap.
Pauses for a while, then resumes.
Usage GuardCool down
Case by case
The situations you will actually meet.
Pick one. See the call your backend makes, what Darkmeter answers, and what the person is shown.
Your backend ⇄ Darkmeter
Illustrative situations and wording. Verdicts and reason names are a preview of the planned API.
Before and after
A free-minutes promo, twice
An illustration, not a measurement: the same events, with the decision made at the right moment.
Without Darkmeter
- A promo gives every new listener free minutes.
- Some people sign up again for more.
- Each repeat is generation you pay for.
- The promo costs more than planned.
With Darkmeter
- A promo gives every new listener free minutes.
- Repeat signups get a smaller grant.
- Heavy devices pause at the cap.
- The promo costs what you planned.
Questions
Bring us your free tier.
Tell us how your free tier works and where it leaks. We will map it to the four points above.