🛠 Free for every author

Free Tools for Indie Authors

Calculators, comparators, and planners built specifically for self-published authors — no sign-up required.

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All Royalty Pricing Marketing

Royalty & Earnings

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KDP Royalty Calculator

Calculate your exact net royalty per sale for ebook, paperback, and hardcover across all Amazon marketplaces.

Wide vs Amazon Calculator

Compare projected annual earnings publishing wide across Apple, Kobo, and D2D versus Amazon-exclusive KDP Select.

KENP Earnings Estimator

Estimate your Kindle Unlimited income from monthly page reads and see how it compares to direct sale royalties.

Series Earnings Tracker

Calculate total series revenue, per-book breakdown, sell-through rates, and average revenue per reader — up to 10 books.

Author Income Goal Planner

Reverse-engineer your path to $X/month — how many books, sales, and ad spend do you need to hit your income target?

ACX Audiobook Royalty Calculator

Compare ACX royalty share vs fixed stipend, and calculate Audible payout rates for your audiobook.

Author Tax Estimator

Estimate US self-employment tax on royalty income, quarterly payment amounts, and common author deduction categories.

Pricing & Platforms

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Book Pricing Optimizer

Find the optimal price for your book by genre, format, and marketplace — with royalty estimates at every price point.

Platform Comparison

Compare 12+ publishing platforms side by side — royalty rates, exclusivity, payout thresholds, and global reach.

Aggregator Comparison

Compare Draft2Digital, PublishDrive, StreetLib, and Findaway Voices — fees, royalties, reach, and break-even analysis.

Permafree Series Calculator

Model whether making book 1 permanently free is profitable — based on your series length and read-through rates.

Advertising & Marketing

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Ad ROI Calculator

Calculate true advertising ROI — ACoS, ROAS, profit per sale, and break-even point for Amazon Ads and Meta campaigns.

Email List ROI Calculator

See the revenue potential of your author newsletter — per campaign, per year, and what-if improvement scenarios.

Launch Week Calculator

Enter your release date and get a personalised pre-launch checklist with exact dates for every key milestone.

BookBub & Promo Site ROI Calculator

Estimate return from BookBub Featured Deals, Robin Reads, BargainBooksy, and other promo sites.

Get the Full Picture

ScribeCount tracks your actual royalties across 40+ platforms — automatically.

Stop guessing. Connect your stores once and see every royalty, every sale, and every trend in one dashboard. Free 14-day trial, no credit card required.

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