BillaBear vs OpenBRM

BillaBear is a subscription management and billing system with Stripe integration, a REST API, and web, API, and self-hosted deployment options. It manages subscriptions, custom plans, add-ons, invoices, quotes, hosted checkouts, paylinks, vouchers, credit notes, dunning, and reports. Pricing models include fixed, usage-based, volume and graduated tiers, fixed-plus-unit, and per-seat charges. The system supports multiple brands and currencies, tax management, country and state rules, configurable thresholds, EU reverse charge, one-stop-shop, and VAT Sense integration. Workflows can retry failed tasks, including API requests. Invoice, quote, PDF, and email templates use Twig or email-service-provider templates. Integrations listed include Stripe, Slack, Freshbooks, Xero, Mailchimp, EmailOctopus, SendGrid, MailGun, and Postmark; Zendesk and Freshdesk integrations help agents find customer profiles. SDKs are listed for PHP, Java, Go, JavaScript, Ruby, and Python. The Starter plan is $1 a month, with $50,000 of revenue free. Managed cloud hosting is currently unavailable.

OpenBRM is an open-source billing and subscription management platform for telecom operators, ISPs, MVNOs, SaaS businesses, and enterprises. It combines recurring subscriptions, one-off charges, prepaid balances, and rated usage on customer-cycle invoices sent by email or PDF. Subscription operations cover plan changes, upgrades, downgrades, cancellation, and activation, with provisioning hooks; inventory tracks SIMs, MSISDNs, modems, and IP pools. An ecommerce storefront supports subscription sales with recurring billing and payment processing. OpenBRM incorporates the OpenRate rating engine, which the site says handles around 1,000 CDRs per second and accepts delimited, fixed-length, binary, TAP, and ASN.1 formats. Its CRM supports quotes, service tickets, bulk SMS and email notifications, and customer reminders. GUI functions are available through SOAP and REST APIs. The self-hosted package, including the rating engine and ecommerce component, has no licence fee. Saralam Technologies develops and supports OpenBRM and offers implementation, integration, and custom development services.