Editorial & Review Policy

How comparisons on Solo Built Tools are researched, written, and corrected.

Our criteria

• Total cost on the same basis: same currency, same billing period, same list size or tier — and the counting method (for example, unique active subscribers vs stored contacts) stated before any table.
• Limits that bite: send caps, automation limits, seat and audience limits, and what happens when you pass them (pause, overage charge, or automatic upgrade).
• Fit: who the tool suits, and — always — who it does not.
• Switching cost: migration help, export, and what happens to your price as you grow.

Research-based, unless stated otherwise

Our comparisons are built from the vendors' official pricing pages and help documentation. We do not write about tools as if we had used them when we have not. If an article is based on hands-on use, the article says so and states exactly what was tested (plan, period, and scope). If it does not say that, it is a documentation comparison.

Prices and dates

Every price and feature figure carries a check date, and each article lists its official sources. Figures we cannot confirm on an official page are marked "unconfirmed" in the article and are never used as the basis for a conclusion. Prices change; the vendor's page on the day you buy is the deciding source.

Updates and corrections

When a vendor changes prices or plans, we update the article and its check date. If you spot a figure that no longer matches the official page, contact us via the Contact page — corrections are prioritised and noted in the article.

Independence

Affiliate commissions do not change our criteria or conclusions. See the Affiliate Disclosure.

Last updated: 2026-11-14.