Do I need a subscription if I only use AI for occasional client work?
No. Count the days per month you actually do client AI work. If the count is small, the Day Pass, $0.99 for 24 hours, covers each work day as it comes, with the same receipts and handovers a subscription produces. A subscription earns its price when client work is a daily habit, which pricing lays out side by side.
The occasional user's trap is paying monthly for a pattern that is weekly. The test is not how much you value the tool; it is how many days in a month the tool is between you and a client deliverable. Three client days a month is $2.97 of Day Passes. Ten is $9.90. The break-even against the $29 monthly Pass sits near daily use, and the annual and holder tiers exist for people well past that line.
The second trap is assuming the cheap route produces a lesser record. It does not: a Day Pass day produces the same receipts, the same handovers, and the same acceptance records as any other day, because the record is the product's core, not a tier feature. The occasional user loses nothing in evidence quality by paying per day; they lose only the convenience of never thinking about it.
Revisit the count quarterly. Client work has a way of becoming regular quietly, and the month you notice you bought twenty passes is the month the subscription starts saving you money. The pricing page states all four figures plainly, $0.99, $29, $290, See pricing, so the arithmetic is yours to check, not ours to argue.
Worksheet: your break-even count
1. Last month: count the days with any client AI work. Write the number. 2. Multiply by $0.99: that is your Day Pass cost for the same month. 3. Compare with $29 (monthly Pass), $290 a year, and See pricing a month for $ZAMBO holders. 4. Rule: under roughly fifteen work days a month, per-day wins; at daily use, the Pass wins; between them, choose convenience and revisit next quarter. 5. Record the count each quarter; the trend, not any single month, decides.
Worked example
Sample: a designer with six client days in September pays $5.94 in Day Passes for the month, with every job's receipts intact. The same designer in a December rush, twenty-two work days, would have paid $21.78 per-day or $29 flat; near the line either is defensible, and the worksheet's quarterly count is what tells her which side she is actually on. (Sample figures computed from the live prices.)
Frequently asked questions
Does the Day Pass record expire when the day ends?
The pass ends; the records do not. Receipts and handovers made during the day stay checkable afterwards, because evidence that vanished with the billing period would be useless exactly when it is needed.
Can I mix, passes some months and a subscription in busy ones?
Yes. Start and stop the subscription as the workload dictates; the records accumulate in one place across both patterns. Nothing about switching strands your history.
Is there a free way to test whether my count is right?
The free tier and the demo let you run real jobs and see the record shape before any pass. Count a typical month's client days first; the worksheet above does the rest.
By Brennan Zambo, founder of Zambo.
Last verified: 2026-10-17.
Try a handover
A handover gives your client one proof link with verifiable receipts to review, then Accept or Flag.
try it: say 'use zambo to hand this over to <client>' in your ai