# Manage your usage

Each subpage breaks down a specific usage item and details what you're charged for, how costs are calculated, and how to optimize usage and reduce costs.

- [Compute](/docs/guides/platform/manage-your-usage/compute)
- [Read Replicas](/docs/guides/platform/manage-your-usage/read-replicas)
- [Branching](/docs/guides/platform/manage-your-usage/branching)
- [Egress](/docs/guides/platform/manage-your-usage/egress)
- [Disk Size](/docs/guides/platform/manage-your-usage/disk-size)
- [Disk Throughput](/docs/guides/platform/manage-your-usage/disk-throughput)
- [Disk IOPS](/docs/guides/platform/manage-your-usage/disk-iops)
- [Monthly Active Users](/docs/guides/platform/manage-your-usage/monthly-active-users)
- [Monthly Active Third-Party Users](/docs/guides/platform/manage-your-usage/monthly-active-users-third-party)
- [Monthly Active SSO Users](/docs/guides/platform/manage-your-usage/monthly-active-users-sso)
- [Storage Size](/docs/guides/platform/manage-your-usage/storage-size)
- [Storage Image Transformations](/docs/guides/platform/manage-your-usage/storage-image-transformations)
- [Edge Function Invocations](/docs/guides/platform/manage-your-usage/edge-function-invocations)
- [Realtime Messages](/docs/guides/platform/manage-your-usage/realtime-messages)
- [Realtime Peak Connections](/docs/guides/platform/manage-your-usage/realtime-peak-connections)
- [Custom Domains](/docs/guides/platform/manage-your-usage/custom-domains)
- [Point-in-Time Recovery](/docs/guides/platform/manage-your-usage/point-in-time-recovery)
- [IPv4](/docs/guides/platform/manage-your-usage/ipv4)
- [MFA Phone](/docs/guides/platform/manage-your-usage/advanced-mfa-phone)
- [Log Drains](/docs/guides/platform/manage-your-usage/log-drains)