AppStackPickr
Independent SaaS Intelligence Free Tools · June 2026

Free SaaS Calculators.

No signup. No tracking. No cookies. Every calculator runs entirely in your browser — your inputs never leave your device. Built for affiliate marketers, SaaS founders, and operators who need a quick honest number.

Methodology. Commission rates reflect each vendor's public affiliate page as of June 2026. Email ROI benchmarks use a 1:36 average order value and a 0.10% conversion rate. Calculator results are estimates, not promises.

SaaS Affiliate Commission Calculator

Calculate your lifetime, recurring, and one-time commission earnings across Systeme.io, ConvertKit, GetResponse, AWeber, ActiveCampaign, and Semrush — based on your traffic and conversion assumptions.

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Email Marketing ROI

See what a 1,000-subscriber list is worth across average order value and conversion rate. Includes deliverability buffer for Apple Mail Privacy Protection.

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Affiliate Earnings Estimator

Estimate your monthly affiliate income from a single conversion rate × payout × traffic model. Sliders for traffic source and EPC.

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SaaS Cost Comparison

Side-by-side cost per active user across popular SaaS tiers. Annual vs. monthly billing, seat math, and threshold for upgrade.

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Funnel Conversion Calculator

Build a 4-step funnel (opt-in → tripwire → core → upsell) and see the blended EPC and revenue per visitor across the whole sequence.

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Read our latest reviews.

27 SaaS tools tested. 9 months of data. Zero affiliate bias.

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