9. Assumptions and Open Inputs
The idea came as one row in the 30 Sept 2026 micro-SaaS idea catalog (D1). Team, location, hours per week, agency access and pricing were not supplied. Here's what was assumed, and how the verdict changes if each assumption is wrong.
9.1 Assumptions made
| Input | Assumption used | If actually different… |
|---|---|---|
| Target customer | As described: local businesses, direct. Recommended: UK and Irish web-design agencies. | Already inside a network of 50+ agencies: the odds move toward the top of each band, or multiply by ~1.3. |
| Geography | UK and Ireland first | US-based with no UK access: the recommended odds fall to roughly the "US agency white-label" column in 01, because of GoHighLevel. |
| Pricing | Agency £39 / £79 / £159, Direct £12, blended ~$100 per agency account | Agencies won't pay over £25: $10k needs ~250 agencies, so halve the $10k+ odds. |
| Exchange rate | £1 = $1.30 | A 10% swing moves the customer counts by ~10%. |
| Stage | Idea. No code, no users, no revenue. | A live widget with users: send the numbers, since retention data outweighs most of this. |
| Team | One technical founder | Non-technical: an extra ~£10–20k build cost, and slower fixes to API breakage. |
| Hours per week | Two columns: ~15 hrs/week and full-time | Under 10 hrs/week: support alone (Cause #3 in 05) makes $5k+ unlikely. |
| Google API access | Granted within 45 days, and the display model allowed | Refused, or display ruled out: stop. There's no compliant product. |
| Agency churn | ≤2.5%/month with the client report in use | At 5%, $20k is out of reach at 15 hrs/week. |
| GoHighLevel share among UK web-design agencies | Low (unverified) | High: the wedge collapses into the US problem. Test it on the first 20 calls. |
| Competitor data | As checked on 30 Sept 2026 (10). Trustindex paid prices are third-party. | Re-check Repuso, Trustindex and LocalImpact before launch. They're the direct comparisons. |
9.2 Inputs that would change the verdict most (please supply)
- Hours per week available, and for how many months.
- Where you're based, and whether you can sell to UK or Irish agencies (network, language, time zone).
- Whether you have a Google Business Profile verified for 60+ days (your own business), with a website. It's needed for API access.
- Any agency relationships you already have, and how many.
- Your technical background. Google OAuth, email/SMS deliverability, and WordPress plugin work.
- Any existing product or users.
- Budget: at least ~£2k for a UK consumer-law review and ~£100/month in tools for the first 6 months.
9.3 Definitions used throughout
- Agency account: one paying web-design agency, covering 15–150 client locations depending on plan.
- Location: one Google Business Profile listing connected to ReviewPin.
- Honest by default: newest first, all ratings, Google's own average and count shown, a "how these reviews are chosen" notice, and hidden reviews only for logged, FTC-permitted reasons.
- Review gating: asking customers about their experience first, and sending only positive ones to the public review site.
- Logo churn: the share of paying agency accounts that cancel in a month.
- Tier A / Tier B: as in the portfolio README.