Substy review, checked on their own pages.

If you want to start at $0 and only pay when the AI sells, Substy's Starter plan is one of the rare genuine offers in this market. If your AI-driven sales are already meaningful, the 15% makes that free plan the most expensive option on this page, and the safest setup is locked behind the priciest plan.

Substy bundles two things in a browser-based platform. A management side: revenue dashboard, automatic classification of fans into VIPs, spenders and time-wasters, chatter distribution, tracking-link analytics. And an AI chat bot that runs conversations on its own, remembers fans, adjusts how explicit it gets, and sells PPVs and bundles without a human on the send button.

Substy supports OnlyFans and Fanvue natively at identical pricing, with MYM listed as coming soon, which is a genuine differentiator for agencies diversifying off OnlyFans. On pricing structure, Substy's own pages describe each plan as one flat monthly price for the whole organisation, regardless of the number of accounts, with unlimited creators on every tier.

Three plans, one flat monthly fee each, plus a commission charged only on the sales the AI itself closes. Substy states that the commission never applies to revenue the AI did not generate, and a third-party review reports that annual billing cuts the monthly fees. Paid plans come with a one-week free trial.

Starter costs 15% of AI-closed sales. Pro costs $69 plus 10%. A third-party industry review puts the crossover around $1,400 of AI-closed sales a month: below it, Starter is cheaper; above it, Pro is. Pro against Elite crosses higher. On an account where the AI moves $5,000 a month, the same review calculates $750 on Starter, $569 on Pro and $524 on Elite. We attribute those figures to that review rather than to our own audit, but the direction is simple arithmetic: the more the AI sells, the more the free plan costs.

Then there is the caution that matters most. Every one of those numbers depends on Substy's own attribution of what counts as an "AI sale". There is no independent way to check whether a given fan would have bought anyway. At 15% on the free tier, that is a meaningful unknown to weigh before you scale.

Substy's core mode has the AI sending messages itself, not drafting them for a human to approve. That is a materially different position from tools that keep a human on the send button, and it is the same position ANNA takes, so we will not pretend otherwise. At least one industry review frames fully automated fan interactions as something OnlyFans' policies treat with suspicion; we report that as that reviewer's view, not as OnlyFans' own wording, which we have not verified on this point. The same review notes that Substy's Hybrid mode is the more defensible setup, and that it is only on the $99 Elite plan.

Our position, for any tool that chats on its own: it works if you keep the controls. With ANNA, you set the rules and the floor price, you see every conversation, and a human can take over any thread at any time, on every plan. We found no documented pattern of Substy-specific bans at the time of writing, which cuts both ways. How ANNA keeps you in control.

Among the CRM-plus-AI tools, Substy is distinct for betting on removing human chatters rather than assisting them. Infloww and OnlyMonster position their AI as help for a human; Supercreator sells an autopilot tier with a 5% commission on top of $99; Substy is closer to Flirtflow's fully autonomous model, with a commission that declines as you pay more instead of a flat percentage.

ANNA sits in the same autonomous family as Substy and Flirtflow. The difference is not whether the AI sends the message. It is what you pay on each sale, and what protects your prices.

This is the one comparison on this blog that is a real head-to-head: both tools answer fans and close sales on their own. So the comparison is on the axes that decide the real cost and the real control.

A new or cash-tight agency that wants a genuinely free starting point, or one running a Fanvue-heavy roster where Substy's dual-platform support is a real edge, has a legitimate reason to start on Substy's Starter plan.

A creator or an agency whose AI-driven sales are large enough to make 8.5% to 15% meaningful, who wants a floor price and full dashboard visibility on every plan rather than only the most expensive one, and who would rather not depend on a vendor's own definition of an "AI sale", should run the ANNA free trial, 700 credits and no card, on one model and compare the real numbers. On OnlyFans, that is a like-for-like test. On Fanvue, Substy is the one of the two that runs there today. What ANNA does on an account.

Depending on what you were hoping Substy would do for you, the alternative is not always the same tool.

Every Substy pricing and feature claim was checked directly against substy.ai's pricing and comparison pages in October 2026, including the three plans, the commission rates, the flat-per-organisation pricing wording and the Fanvue support. The break-even figures and the compliance framing are attributed to a third-party industry review rather than independently audited by this article. This piece was written by ANNA's own team, as disclosed at the top, and we will correct any factual error Substy points out.