Alternatives
Products that do what FlatRateKit does
Free HVAC flat-rate pricing calculators for small shops
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Simple commission tracking for teams who hate spreadsheets.
Jun 2026 · commissionkit.co
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Hey HN, I’am Koshima, co-founder of Flexprice (https://flexprice.io/). Flexprice is an open source monetization platform for AI & Agentic companies. You can build usage-based, credit-based, or hybrid pricing models with full control. Usage-based billing works on paper, but breaks fast in production: (1) High-volume data (e.g., 10k API calls/sec from AI inferences) breaks naive pipelines, dropping events and causing underbilling or customer complaints. (2) Backfilling missing events or retroactive discounts screws up invoices, forcing 3 AM log stitching to avoid revenue…
2025
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Aug 2026 · costperprompt.com
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Know payor take before you bill; kill that scope creep.
Jul 2026 · freepaycalc.com
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Calculate discounts, sale prices & savings instantly
Jul 2026 · percentoffcalculator.org
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Hey Hacker News! No one likes to code pricing; it sucks. It shouldn't take up my time, yet it always does - too much of it. And pricing always needs to change, eating up valuable dev hours. I created a simple pricing engine so that I could write all of my pricing rules & resource limits in a single YAML doc, then enforce them everywhere with a single policy check. It's simple, intuitive, versionable, auditable, and easy to reason about or change quickly without bogging my development down. My CTO friends liked the idea and wanted to use it, so I created this open-source library for everyone…
Feb 2026 · github.com
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Free ecommerce, marketing & SaaS calculators
Jun 2026 · chromewebstore.google.com
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