SOI, DOI, PPS and RevShare Payout Models Explained

Every adult affiliate program runs on one of four core payout structures: SOI, DOI, PPS, or RevShare. These four models determine when you get paid, how much you get paid, and how much risk sits on your side of the deal versus the program's side. Understanding the differences is not optional if you are serious about affiliate revenue.

This page breaks all four down with precision, covers the hybrid structures that combine them, and gives you a practical framework for deciding which model fits your traffic and your risk tolerance.

The Short Version

SOI (Single Opt-In) pays you the moment a user fills out a signup form, no email verification required. Fast money, but fraud-prone. DOI (Double Opt-In) adds an email confirmation step before the payout fires, which slows conversion but filters out garbage leads. PPS (Pay Per Sale) pays a flat bounty only when the user actually hands over a credit card. RevShare skips the flat fee and gives you a cut of everything that user spends on the platform, often for life.

The trade-off across all four is the same: speed and volume versus quality and long-term value. SOI converts fastest but earns least per lead. RevShare converts slowest but can generate passive income for years from a single referred member. Most professional affiliates run a mix, and some programs offer hybrid deals that pay a smaller PPS bounty plus a RevShare tail.

The Full Definition

SOI - Single Opt-In

SOI stands for Single Opt-In. The affiliate's tracking pixel or postback fires the moment a user submits a registration form on the advertiser's site. No email confirmation is required. The lead is considered valid at the point of form submission alone.

Payouts on SOI offers in adult typically range from $0.50 to $4.00 per lead, depending on the geo, the program, and the quality tier the affiliate has negotiated. The low per-lead rate reflects the fact that a large percentage of SOI signups never engage meaningfully with the platform. Some are bots. Some are users who entered a throwaway email address. Some are incentivized traffic that converts purely to collect a reward.

Because the bar for conversion is so low, SOI is the most fraud-susceptible model in the stack. Advertisers who run SOI offers typically impose traffic quality audits, chargeback thresholds, and lead-to-sale ratio requirements to protect themselves. Affiliates who send low-quality SOI traffic often find their accounts suspended or their payouts reversed.

DOI - Double Opt-In

DOI stands for Double Opt-In. The payout fires only after the user completes a two-step process: they submit the registration form, and then they click a confirmation link sent to the email address they provided. The second step is the "double" in the name.

DOI payouts are typically 20-50% higher per lead than SOI on the same offer, because the advertiser is getting a verified, deliverable email address attached to a user who demonstrated intent twice. The conversion rate from click to payout is lower, but lead quality is measurably better. Advertisers see higher email open rates, higher trial conversion, and lower fraud rates on DOI lists.

For affiliates, DOI requires traffic that is genuinely motivated. Incentivized traffic, pop traffic, and low-engagement display placements tend to bleed badly on DOI because users who casually click a banner rarely bother to open a confirmation email. DOI rewards affiliates who send engaged, intent-driven visitors.

PPS - Pay Per Sale

PPS stands for Pay Per Sale. The affiliate earns a flat cash bounty when a referred user makes a purchase, typically a subscription or a trial membership. No purchase, no payout, regardless of how many signups the affiliate drives.

PPS bounties in adult affiliate programs typically range from $25 to $75 per initial sale, with premium programs and exclusive deals reaching $100 or more for full subscriptions. Trial conversions (where the user pays a low introductory price like $1 or $9.95) usually pay a reduced bounty, often $15 to $35, because the advertiser is taking on the risk that the trial will not convert to a recurring subscription.

PPS is straightforward from an accounting perspective. The affiliate knows exactly what each conversion is worth before they launch a campaign. There is no ambiguity, no waiting for a user to spend more over time. The downside is that the affiliate captures no upside if the user becomes a high-value long-term subscriber. A member who stays on a $29.99 monthly plan for three years generates roughly $1,080 in revenue for the platform. Under PPS, the affiliate who sent that member earned their $35 bounty and nothing more.

RevShare - Revenue Share

RevShare, short for Revenue Share, gives the affiliate a percentage of every dollar the referred user spends on the platform, typically for the lifetime of that user's account. The percentage varies by program and negotiation, but 13% to 35% is the standard range in adult affiliate marketing, with some premium programs offering up to 40% for high-volume affiliates.

RevShare is the most complex model to evaluate at the campaign level because the payout is not fixed. A referred user who cancels after one month might generate $5 in affiliate revenue. A referred user who stays active for five years and upgrades to a premium tier might generate $400 or more. The affiliate's earnings are a direct function of the quality and retention of the users they refer, not just the volume.

Most RevShare programs in adult define "lifetime" as the lifetime of the user's account on that specific platform. Some programs include a cookie window or a referral window after which the attribution expires. Read the terms carefully. A program that says "lifetime RevShare" but resets attribution after 12 months of user inactivity is a materially different deal from one that tracks the user permanently.

Hybrid Models

Hybrid offers combine PPS and RevShare within a single deal. A typical hybrid structure might pay the affiliate a $25 flat bounty on the initial sale plus 15% RevShare on all subsequent billing cycles from that user. The flat bounty covers the affiliate's immediate acquisition cost. The RevShare tail rewards them for sending users who stick around.

Hybrid models are increasingly common on mid-tier and premium adult programs because they align the incentives of both parties. The affiliate has a reason to optimize for retention, not just raw conversion volume, and the advertiser gets to reduce the upfront bounty cost while still attracting quality affiliates.

How It Actually Works

The mechanics differ at the tracking level. Here is how the money flow looks for each model from click to payout.

The Tracking Stack Behind Each Model

All four models rely on affiliate tracking software, typically a combination of server-side postbacks and browser-based pixels. When a user clicks an affiliate link, a unique click ID is stored. When the trigger event fires (form submission for SOI, email confirmation for DOI, payment for PPS or RevShare), the advertiser's platform sends a postback to the affiliate's tracker with that click ID and the payout value.

For RevShare, the postback fires repeatedly - once per billing cycle - rather than as a single event. This means the affiliate's tracker needs to be configured to accept multiple conversions on the same user ID without treating them as duplicates or fraud signals. This is a common setup mistake that causes affiliates to undercount RevShare earnings.

Who Uses It and Why

Affiliates Who Prefer SOI and DOI

Media buyers running large-scale pop, push, or display campaigns on networks like TrafficJunky or ExoClick typically gravitate toward SOI and DOI because their traffic volume is high and their per-visitor earnings need to be predictable at scale. A media buyer spending $500 per day on traffic cannot wait 30-60 days for PPS conversions to determine if a campaign is profitable. SOI gives near-instant feedback.

DOI is the preferred model for affiliates building email lists as a traffic asset. The confirmed email address is itself a valuable outcome, and programs that pay on DOI are essentially co-funding the affiliate's list-building operation.

Affiliates Who Prefer PPS

SEO affiliates running review sites, tube SEO, or niche content blogs are the natural home for PPS. Their traffic is high-intent. A user who searches "best premium amateur porn site" and clicks through to a review is already mentally prepared to pay. The conversion rate from click to purchase is higher than almost any other traffic type, which means the flat PPS bounty is worth more per click than it would be for a pop traffic buyer sending cold audiences.

PPS is also popular with affiliates who want clean, simple accounting. You know your cost per click, you know your PPS bounty, you know your conversion rate. The math is transparent.

Affiliates Who Prefer RevShare

RevShare is the model of choice for affiliates with established, loyal audiences - think long-running content creators, newsletter operators with engaged subscriber bases, or authority review sites with years of organic traffic. These affiliates send fewer conversions in raw numbers, but the users they refer tend to have higher lifetime value because they arrived via a trusted recommendation rather than an impulse click.

RevShare is also the model that builds passive income over time. An affiliate who referred 200 active members to a platform three years ago may still be earning $600-$1,400 per month from those users' recurring subscriptions without doing any additional work. That compounding dynamic does not exist in PPS or SOI/DOI models.

Advertisers and Programs

From the advertiser's side, SOI and DOI are used to build marketing databases quickly and cheaply. They pay for data, not for revenue. PPS is used by programs with strong trial-to-subscription conversion rates who want to pay only for validated buyers. RevShare is offered by programs with high user retention and high average order values - it is a signal of confidence in their own product. A program that refuses to offer RevShare is often a program that knows its users churn fast.

Common Misconceptions

Myth 1 - SOI Is Always a Worse Deal Than PPS

Reality: At sufficient volume and with the right traffic source, SOI can outperform PPS on an earnings-per-click basis. A media buyer sending 100,000 clicks at a 5% SOI conversion rate earns 5,000 conversions at $2 each = $10,000. The same traffic sent to a PPS offer at 0.3% conversion and a $35 bounty earns $10,500 - marginally better but with far more variance. SOI's predictability has real value at scale.

Myth 2 - RevShare Always Pays More in the Long Run

Reality: RevShare only beats PPS if the users you refer actually stick around. On programs with high churn rates or aggressive cancellation practices, RevShare can pay out less than the equivalent PPS bounty within the first 60 days. Always ask a program for their average user lifetime value and average rebill rate before choosing RevShare over PPS. If they refuse to share that data, that tells you something.

Myth 3 - DOI Conversions Are Always Higher Quality Than SOI

Reality: DOI filters out unverified emails, but it does not filter out low-intent users who happen to have real email addresses. A user who confirms their email but never visits the site again is technically a DOI conversion and a low-quality lead. Quality is about user behavior post-signup, not just the verification step.

Myth 4 - Hybrid Models Are Always the Best Option

Reality: Hybrid models look attractive on paper, but the PPS component is usually reduced significantly from the standalone PPS rate, and the RevShare percentage is often lower than the standalone RevShare rate. A hybrid paying $15 PPS plus 10% RevShare may underperform a straight 25% RevShare deal if the referred users have high lifetime value. Run the numbers against your expected user retention before assuming hybrid is the optimal structure.

Myth 5 - RevShare Is Passive and Requires No Maintenance

Reality: RevShare income can be disrupted by program shutdowns, changes to payout terms, or attribution resets. Affiliates who built their entire business on RevShare from a single program and had that program close or change ownership have lost years of compounded earnings overnight. Diversification across programs and models is not optional for serious affiliates.

How to Evaluate These Models Responsibly

Choosing the right payout model is not a philosophical exercise. It is a math problem with a few qualitative inputs. Here is a practical checklist for making the call.

Step 1 - Know Your Traffic Profile

Step 2 - Request Key Metrics From the Program

Before committing to any payout model, ask the affiliate manager for the following numbers. A legitimate program will share them. A program that stonewalls you on all of them is a program to avoid.

• Average rebill rate - the percentage of initial sales that convert to a second billing cycle. Anything below 40% makes RevShare significantly less attractive than PPS.
• Average user lifetime value (LTV) - the total revenue a typical referred user generates before cancelling. This is the single most important number for the RevShare vs PPS decision.
• Trial-to-full conversion rate - for PPS on trial offers, this tells you whether the $1 trial is a genuine acquisition funnel or a churn machine.
• EPC benchmarks - earnings per click for affiliates in your traffic category. This contextualizes your performance against the program average.

Step 3 - Calculate Your Break-Even Point for RevShare vs PPS

The break-even formula is simple. If a PPS offer pays $35 and a RevShare offer pays 25%, you need the referred user to generate at least $140 in lifetime spend for RevShare to outperform PPS. At a $29.99 monthly subscription, that is fewer than 5 months of retention. If the program's average user stays 8 months, RevShare wins by $60. If the average user stays 3 months, PPS wins by $10.

Run this calculation with real numbers from the program, not assumptions. The math is the answer.

Step 4 - Monitor Fraud Risk on SOI Campaigns

If you are running SOI, implement traffic quality monitoring from day one. Watch your lead-to-engagement ratio (what percentage of SOI leads open a subsequent email or return to the site), your IP overlap rate, and your payout reversal rate. Programs will claw back SOI payouts on leads they deem fraudulent, sometimes weeks after the initial credit. A campaign that looked profitable at payout time can turn negative after reversals.

Step 5 - Diversify Across Models and Programs

No single model is universally superior. Professional adult affiliates typically run PPS for immediate cash flow, RevShare for long-term passive income, and SOI/DOI for list-building or high-volume media buying. Concentrating all revenue in one model or one program creates fragility. The affiliate who earns $8,000 per month from RevShare on a single program has a single point of failure. Spread the risk.

Where to Go Next

This page covers the foundational payout models. For deeper coverage of related topics, the following resources on this site go further into the specifics.

• Best Adult Affiliate Programs - A Ranked Review - covers which programs offer the most competitive PPS and RevShare rates by niche category.
• Affiliate Tracking Setup for Adult Campaigns - how to configure postbacks correctly for RevShare recurring payouts so you are not undercounting earnings.
• Adult Traffic Sources Compared - which traffic networks perform best against each payout model, with real EPC data.
• Affiliate Fraud Prevention in Adult Programs - a technical breakdown of how advertisers detect fraudulent SOI and DOI leads, and how legitimate affiliates protect themselves from false accusations.

FAQ

What does SOI mean in adult affiliate marketing?

SOI stands for Single Opt-In. It is a payout model where the affiliate earns a commission the moment a user submits a registration form, without any email verification step. It is the fastest-converting lead generation model but carries the highest fraud risk because there is no confirmation that the user provided a real email address or has genuine intent. Payouts typically range from $0.50 to $4.00 per lead depending on the geo and the program's quality requirements.

What is the difference between SOI and DOI?

The difference is one verification step. SOI fires the payout at form submission. DOI requires the user to also click a confirmation link in an email before the payout fires. DOI leads are higher quality because the user demonstrated intent twice and provided a deliverable email address. DOI payouts are typically 20-50% higher per lead than SOI on the same offer. The trade-off is a lower raw conversion rate, since many users never bother to check their email for a confirmation.

How much does PPS pay in adult affiliate programs?

PPS bounties in adult affiliate programs typically range from $25 to $75 for a standard subscription sale, and $15 to $35 for a trial conversion. Premium programs with strong brand recognition and high average order values can push PPS bounties to $100 or more, particularly for exclusive affiliate arrangements. The actual rate depends on the subscription price, the program's trial-to-full conversion rate, and the volume and quality of traffic the affiliate delivers.

Is RevShare better than PPS for adult affiliates?

It depends entirely on user retention rates. RevShare outperforms PPS when referred users stay subscribed long enough for the cumulative percentage payments to exceed the flat PPS bounty. If a PPS offer pays $35 and a RevShare offer pays 25% on a $29.99 subscription, RevShare wins after roughly five months of user retention. On programs with poor retention or aggressive cancellation practices, PPS will often deliver more total revenue. Always ask for average user LTV before choosing RevShare over PPS.

What is a hybrid payout model?

A hybrid model combines a flat PPS bounty on the initial sale with a RevShare percentage on all subsequent billing cycles from that same user. For example, a hybrid deal might pay $20 on the initial sale plus 15% RevShare on every rebill. This structure gives the affiliate immediate cash flow from the flat bounty while also providing a long-term revenue tail. The trade-off is that both the flat rate and the RevShare percentage are usually lower than their standalone equivalents. Hybrid models work best for affiliates who need short-term cash flow but also want to build passive income.

What RevShare percentage is normal for adult affiliate programs?

The standard range is 13% to 35%, with most programs starting new affiliates at 20-25% and offering higher rates to affiliates who demonstrate consistent volume and quality. Some premium programs offer up to 40% for top-tier partners. Rates below 15% are generally not worth the complexity of RevShare tracking compared to a flat PPS deal, unless the program has an unusually high average order value or very long user retention. Always negotiate based on the LTV data the program provides, not just the headline percentage.

Can RevShare income disappear overnight?

Yes, and this is one of the most serious risks in adult affiliate marketing. Programs can close, get acquired, change ownership, or unilaterally revise their affiliate terms. Some RevShare agreements include termination clauses that allow the program to end the arrangement with as little as 30 days notice, wiping out all future earnings from referred users. Affiliates who rely heavily on RevShare income should diversify across multiple programs, keep copies of all affiliate agreements, and monitor program health indicators like payout reliability and affiliate manager responsiveness.

Which payout model has the lowest fraud risk?

PPS and RevShare carry the lowest fraud risk for the advertiser, because the payout only fires when real money changes hands. It is extremely difficult to fake a credit card transaction at scale without immediate detection by the payment processor. SOI carries the highest fraud risk because the trigger event (form submission) requires no financial commitment and can be automated. DOI sits in the middle - harder to fake than SOI because it requires access to a real email inbox, but still vulnerable to bulk account creation with disposable email addresses.