Best Subscription Billing Software in 2026
Updated
In short: Kill Bill is ranked #1 of 50 as of 4 October 2026, ahead of Lago and Pabbly Subscriptions. The best-ranked option with a free plan is Lago. The lowest first paid tier on this page is BillaBear at $1/mo.
Subscription billing software supports recurring charges and related tasks such as handling payment changes, usage, and taxes. Compare customer billing portals and dunning automation with proration controls, which address different parts of the billing workflow. Multi-currency billing, usage-based billing, and tax automation are also covered. Free-plan availability and paid-from pricing offer a cost comparison point. The entries include Kill Bill, Lago, and Pabbly Subscriptions, as well as PayWhirl and UniBee. Consider how you charge customers, manage subscription changes, and handle billing across currencies or usage when assessing the listed capabilities.
50 subscription billing software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
7 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Kill BillWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 2 | LagoWeb · Self-hosted · API | Two bars | — | 1 of 6 | Free | 6.4 | |
| 3 | Pabbly SubscriptionsWeb · API | Two bars | — | 1 of 6 | $14/mo | 6.4 | |
| 4 | PayWhirlWeb · API | Two bars | — | 1 of 6 | $9/mo | 6.4 | |
| 5 | UniBeeWeb · Self-hosted · API | Two bars | — | 1 of 6 | $99/mo | 6.4 | |
| 6 | FakturiaWeb | Two bars | — | 1 of 6 | €139/mo | 6.3 | |
| 7 | FlexpriceWeb | Two bars | — | 1 of 6 | $500/mo | 6.3 | |
| 8 | Zuora CPQWeb · API | One bar | — | — | 1 of 6 | — | 5.5 |
| 9 | Aria BillingWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 10 | GotransverseWeb · API | One bar | — | — | 1 of 6 | $37,500/mo | 5.4 |
| 11 | OrdwayWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 12 | Tridens MonetizationWeb · API | One bar | — | — | 1 of 6 | $500/mo | 5.4 |
| 13 | YouniumWeb · API | One bar | — | — | 1 of 6 | — | 5.4 |
| 14 | BillaBearNo platforms listed | One bar | — | — | 0 of 6 | $1/mo | 5.3 |
| 15 | MeteroidWeb | One bar | — | — | 1 of 6 | €219/mo | 5.3 |
| 16 | Churn BusterWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 17 | OpenMeterWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 18 | VindiciaWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 19 | CCBillWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 20 | Cerillion SkylineWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 21 | FOSSBillingWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 22 | GetPaidHQNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 23 | MultipubNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 24 | PaymenterWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 25 | PaySimpleWeb · Android · iPhone · API | Two bars | — | — | 3 of 6 | $79.95/mo | 5.1 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which subscription billing software is ranked first on Freedom251?
Kill Bill is ranked #1 of 50 with a score of 6.6. Lago is second and Pabbly Subscriptions third.
How many of these have a free plan?
6 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, BillaBear has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.