Free Paywall & Subscription Tools in 2026
Not every monetization tool charges a monthly fee. In 2026, several of the best paywall and subscription platforms let you start for free — either through a generous revenue-based free tier, a $0/month plan, or open source software you can self-host at no cost.
Here's what "free" actually means across each category, with exact thresholds and the real costs once you start growing.
What "free" means (and what it doesn't)
Before comparing tools, it helps to understand the three types of "free":
Revenue-based free tier: No charge until you reach a revenue threshold. You pay nothing until your app generates real money. Most mobile SDKs use this model.
No monthly fee: You pay per transaction, but nothing upfront. MoR platforms like Polar and Lemon Squeezy work this way. Free to start, but the percentage fee applies from day one.
Open source / self-hosted: The software is free, but you cover server costs and maintenance. Genuinely free at low volumes, but requires technical setup.
Free mobile subscription SDKs
Mobile subscription SDKs are the most genuinely free category. All four major options let you handle real subscriptions with zero platform cost until you hit a revenue threshold.
| Tool | Free until | After free tier | Notable |
|---|---|---|---|
| Adapty | $10,000 MTR | $99/mo | A/B testing + paywall builder included free |
| Qonversion | $10,000 MTR | $6/1K MTR | Unlimited apps and seats on free |
| Apphud | $10,000 MTR | $49/mo | Analytics + remote config free, 7-day grace period |
| RevenueCat | $2,500 MTR | 1% of revenue | Largest ecosystem, lower free threshold |
Adapty, Qonversion, and Apphud all offer free tiers up to $10,000 Monthly Tracked Revenue — four times more generous than RevenueCat's $2,500 threshold.
Apphud is the strongest purely-free option: the free plan includes analytics, remote product configuration, and a seat, with a 7-day grace period if you briefly cross the threshold. Adapty edges ahead once you care about paywall A/B testing — that feature is included free, which most tools charge for.
RevenueCat's lower threshold is offset by its ecosystem advantage: more integrations, better documentation, and the largest community. The $2,500 limit works fine for most MVPs.
Free web billing tools (no monthly fee)
The major Merchant of Record platforms don't charge a monthly fee. You pay a percentage on each transaction — zero cost until you make your first sale.
| Tool | Transaction fee | Monthly fee | Tax handling |
|---|---|---|---|
| Polar | 4% + $0.40 | None | ✓ |
| Lemon Squeezy | 5% + $0.50 | None | ✓ |
| Gumroad | 10% + $0.50 | None | ✓ |
Polar is the cheapest MoR option in 2026. At $10,000/month in revenue with 100 transactions, you'd pay approximately $440 in fees with Polar versus $550 with Lemon Squeezy. The gap widens at higher volumes.
Gumroad is more expensive than both. The 10% + $0.50 per transaction adds up fast. The trade-off is a built-in marketplace with discovery. If you have no existing audience, that's worth paying for. If you do, Polar or Lemon Squeezy are better economics.
Free newsletter and publishing platforms
| Tool | Platform fee | Monthly fee | Notes |
|---|---|---|---|
| Beehiiv | 0% | Free to start | Free Launch plan, pay for growth features |
| Ghost (self-hosted) | 0% | ~$5–20 server | Free software, you pay server costs |
| Ghost(Pro) | 0% | From $18/mo | Managed hosting, no platform fee |
| Substack | 10% of revenue | None | No monthly fee, but expensive at scale |
| Kit | 0% | Free plan | Free up to subscriber limit |
Beehiiv's free plan offers 0% platform fee from day one. You keep all subscription revenue. Substack is free to start but costs 10% of everything you earn — at $5,000/month in subscriber revenue that's $500 in Substack fees alone.
Self-hosted Ghost is genuinely free software. A basic VPS costs $5–10/month. No platform fee on memberships, ever. Best option if you're technical and want full control.
Free open source options
If you're comfortable with technical setup, self-hosted billing tools cost nothing beyond server costs.
Lago is the strongest open source billing option in 2026. It handles metered billing, subscriptions, usage-based pricing, and credits. The self-hosted version is free. Cloud starts at $100/month.
Kill Bill is more mature but significantly more complex to operate. Free to self-host. Best for teams with dedicated engineering resources.
Two new entrants worth watching: Meteroid (Rust-based, built for high event volumes) and UniBee (focused on data sovereignty) both launched in 2025–2026 as modern open source alternatives.
The real cost of "free"
Transaction fees compound. Gumroad at 10% + $0.50 on $5,000/month costs $550 in fees — $6,600/year. More than most paid tools.
Free self-hosted isn't really free. Lago and Kill Bill require a server, maintenance, and someone who knows what they're doing. At early stage this is fine. At scale it becomes a real time cost.
Revenue thresholds are generous, not permanent. RevenueCat's 1% fee on $10,000 MTR is $100/month. At $50,000 MTR it's $500/month. Plan for what happens after the free tier.
Recommendations by use case
Building an iOS or Android app: Start with Adapty or Apphud. Both offer $10K MTR free, both include paywall features, and both have clearer paid paths than RevenueCat's 1% model.
Launching a SaaS or web tool: Polar for lowest transaction fees. Lemon Squeezy for larger ecosystem and Stripe-backed stability.
Starting a paid newsletter: Beehiiv for 0% platform fee from day one. Ghost self-hosted if you want full control.
Building complex or usage-based billing: Lago self-hosted with engineering resources. Otherwise Stripe Billing — not free, but the most flexible paid option.