Bobby - Keep track of your subscriptions
Digit - SMS bot that monitors your bank account & saves you money
ChartMogul - Master your recurring revenue. Advanced subscription analytics with one-click.
Quicken - Stay in control of your monthly cash flows, budgets, and expenditures. Quicken provides a navigable interface where you can organize your debit, credit, and savings, and build good habits accordingly.
BareMetrics - SaaS Analytics for Stripe
Penny - Penny is a personal finance app that takes the pain out of keeping track of your finances.