Best Swallow Alternatives & Competitors in 2024

The Boilerplate for SaaS Products, free and Open Source

Open Source paid $99.0 / Annually (Yearly access)

Easily price on usage, SaaS billing without headaches

Powerful SaaS integration toolkit for SaaS developers - create, amplify, manage and publish native integrations from within your app with Cyclr's flexible Embedded iPaaS.

Try for free paid Free Trial

Developer-first, Cloud Metering and Usage-Based Pricing and Billing Platform built from the ground up to enable modern Usage-Based Pricing with real-time metering, and on-demand invoicing and billing.

Offset your carbon footprint by saving rainforests

A Fast and Easy to use microframework for the web.

Open Source

Add interaction to your product with few lines of code.

Zuora creates cloud-based software on a subscription basis that enables any company in any industry to successfully launch, manage, and transform into a subscription business.

A set of tools for billing and subscriptions

Metronome helps software companies launch, iterate, and scale their usage-based business models, with billing infrastructure that works at any size and stage.

Pricing and experimentation tools for Stripe

Chargify is the best online billing software for all of your Recurring Billing needs. Learn more about simplifying your Subscription Billing today.

Make macOS window management a breeze

Open-Source Metering for AI, Usage-Based Billing, Infrastructure, and IoT use-cases.

Open Source