Total Products under this Category: 62
Last updated: September 05, 2026
Why You Can Trust G2's Software Rankings:
G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.
Highlighted products: Chargebee, Tabs, Sequence, Zenskar, DualEntry, Recurly, Vayu, and ZoneBilling.
Underlying data: [Grid® JSON](https://www.g2.com/categories/usage-based-billing-software/grids.json?focus%5B%5D=chargebee&focus%5B%5D=tabs&focus%5B%5D=sequence-hq-sequence&focus%5B%5D=zenskar&focus%5B%5D=dualentry&focus%5B%5D=recurly&focus%5B%5D=vayu-vayu&focus%5B%5D=zonebilling)
Valmi Value is billing, subscription and payments infrastructure for AI agents. We handle metering, pricing, billing, and revenue tracking so you can focus on building great AI products.
witn is billing infrastructure for teams shipping AI agents. When a product does real work for customers, taking an action, closing a ticket, booking a meeting, generating a lead, the billable event is the result, not raw tokens or seats. witn converts that result into invoiceable revenue. Agents emit raw product signals as they run. witn ingests those signals and evaluates them over time against a defined outcome, holds each outcome through a settlement window, monitors for anything that changes the picture, then finalizes. The output is one clean billable outcome per unit of work, fully auditable, with the complete event trail behind it. Every charge traces back to the exact signals that produced it and the moment it settled. No state to reconstruct from logs. No dispute without an answer.
