Session windows and usage resets
Usage is measured in fixed 4-hour UTC bins. Free has message caps; paid has credit windows. Pro 250 / Business 500 credits.
4-hour UTC bins
ISMS Copilot does not start a personal timer on your first message. Usage is tracked in fixed 4-hour windows in UTC. When the bin ends, credits (and Free message counts) reset for the next bin.
Free vs paid
| Free | Paid | |
|---|---|---|
| Credits per bin | 10 | Essential 25, Plus 50, Standard 100, Pro 250, Business 500 |
| Message cap | 10 successful messages per bin | Unlimited messages (credits still apply) |
| When empty | Wait for reset or upgrade / trial | Wait for reset, upgrade, or use any overflow path the app offers |