Polar alternatives

12 tools that do a similar job, and what makes each one different.

What Polar is

Polar is a billing and payments platform that acts as the merchant of record for the seller. Polar Software, Inc. registers as the reseller in the relevant jurisdictions, so it, not you, collects and remits VAT, GST and US sales tax. EU business-to-business sales with a valid VAT ID are handled under the reverse charge rule. You remain responsible for income tax on your own revenue in your own country. Signing up is free and needs no credit card, but account approval goes through a merchant of record and KYC review that usually takes about a week. What a sale costs is built from several parts rather than a single rate, and the headline percentage falls as the monthly fee rises. Starter has no monthly fee and charges 5 percent plus 0.50 US dollars per transaction. Pro costs 20 US dollars a month and charges 3.8 percent plus 0.40. Growth costs 100 US dollars a month for 3.6 percent plus 0.35. Scale costs 400 US dollars a month for 3.4 percent plus 0.30, and is the only tier with a shared Slack channel and prioritised support. Surcharges then stack on top: cards issued outside the United States add 1.5 percent, cross-border currency conversion costs 0.25 percent within the EU and 1 percent elsewhere, and a dispute or chargeback costs 15 US dollars whatever the outcome. Transaction fees are not returned when an order is refunded, in full or in part. Payouts run through Stripe Connect Express or a manual withdrawal, and Polar never moves the balance automatically. Stripe payouts cost 2 US dollars per month per active payout, plus 0.25 percent and 0.25 US dollars per payout, and Stripe's minimum payout amount per currency means anything below it stays on the balance until next time. More than 130 currencies are supported and checkout picks the currency from the buyer's location, with orders converted to US dollars at the time of the transaction. Unusually for this category, the Polar codebase is open source under the Apache 2.0 licence. Products can be one-time purchases or subscriptions, priced as fixed, pay what you want with an optional minimum, free, metered usage or per-seat, with intervals from daily to yearly. Two decisions are permanent: the billing interval and the pricing type are locked once a product is created, and existing subscribers stay on the price they signed up at when a price changes. Benefits automate delivery of what the customer bought: licence keys, feature flags, file downloads up to 10 GB, private GitHub repository access and Discord invites with roles. There are SDKs for JavaScript or TypeScript and for Python, plus adapters for frameworks including Next.js, Nuxt, SvelteKit, Astro and Laravel. The customer portal is hosted by Polar under your own slug and cannot be switched off, so part of the customer relationship sits on Polar's domain rather than yours.

Lemon Squeezy

A merchant of record for digital products, which means sales tax and VAT stop being your problem. They handle registration, collection and remittance globally. Checkout, subscriptions, licence keys and affiliate tooling are included. Fees are higher than a raw payment processor, and that difference buys you not running a tax compliance function.

Paid

Wise

Sends money across currencies at a rate you can check yourself, with the fee shown separately rather than buried in a spread. Multi-currency accounts hold and convert dozens of currencies with local bank details in several, which is how freelancers and remote teams get paid without losing a percentage to their bank. Business accounts add launch payments and an API.

Paid

Dodo Payments

A merchant of record, so it becomes the legal seller and takes on VAT, GST and sales tax rather than leaving the registrations to you. What separates it from the older merchants of record is the billing it was built around: usage metering, credit balances and subscriptions with add-ons, which is how most AI products charge and what generic subscription billing handles worst. It publishes 4% plus 40c on a domestic US transaction with no fixed monthly cost, which is above a bare processor and roughly where merchant-of-record pricing sits. Reaches 220+ countries and 80+ currencies. The trade is the one every merchant of record asks for: a higher percentage, in exchange for never registering for tax in a country you have not visited.

Paid

Stripe

Payments, subscriptions, invoicing and payouts, with documentation good enough that people copy from it as a matter of habit. Handles cards, wallets, bank debits and local methods across most of the world, plus fraud tooling, tax calculation and a billing engine. The default choice for software businesses. You remain the merchant of record, which is the difference from Paddle or Lemon Squeezy.

Paid

Paddle

Billing and tax compliance for software sold across borders, as merchant of record. Subscriptions, invoicing, dunning, fraud and global tax are handled under one contract, so a small team can sell into dozens of countries without registering in any of them. Aimed at SaaS; the pricing model reflects the compliance burden it absorbs.

Paid

LangChain

Open source, unlike Polar

Open source

Replicate

Runs open-source models behind an HTTP API so you never provision a GPU. Push a model with Cog and it becomes an endpoint; pull someone else's and it is one call. Billing is per second of compute, which suits bursty work and gets expensive under sustained load, at which point self-hosting is the comparison to make.

Paid

Hugging Face

The hub open-source machine learning is organised around. Hundreds of thousands of models and datasets with versioning, model cards and licences, plus Spaces for hosting a live demo of any of them. The `transformers` library is the default way to load a model in Python. If a paper released weights, this is almost always where they are.

Freemium

Loops

Email for software companies without the enterprise campaign builder. Two concepts do most of the work: transactional messages triggered by an event, and loops that send a sequence based on user attributes. It integrates with the tools a small SaaS already runs and stops well short of a marketing suite, which is the point.

Paid

LottieFiles

The ecosystem around Lottie, the format that ships vector animation as JSON. Animations stay sharp at any size, weigh a fraction of a GIF or video, and can be recoloured or controlled at runtime. The platform hosts a large library, converts from After Effects, and provides players for web and mobile.

Freemium

Open-Launch

Daily product launches with a badge and a backlink, run transparently, the ranking rules and the code are public, which is unusual in this category. Free and premium submission paths, with the paid one skipping the queue. Positioned as an open alternative to the closed boards, and worth watching for that reason as much as the traffic.

Freemium

Vercel

Deploys a frontend by pushing to a branch, with a preview URL for every pull request, the workflow most React teams now expect by default. Built by the maintainers of Next.js, which it supports first and best. Edge functions, analytics and image optimisation are included. Costs are predictable until traffic is not, and bandwidth is the line to watch.

Freemium