Subscription vs Credits - Everything You need to know

InboxKit offers two flexible billing models — Subscriptions and Credits — giving you complete control over how you scale your mailboxes, domains, and add-on services. Here’s a clear breakdown to help you choose the best method for your workflow.

What Are Subscriptions?

A Subscription gives you a fixed number of mailbox slots that renew automatically every billing cycle (Monthly / Quarterly / Annually).

Where Subscriptions Are Used

• Purchasing mailbox slots (Google Workspace / Microsoft 365)

• Ensuring automated, uninterrupted billing

• Receiving invoices on every renewal

Subscription Plans

InboxKit offers three plan tiers:

You can view or upgrade your subscription from:
Left Sidebar → Subscription

What Are Credits?

Credits act as a prepaid balance in your InboxKit Wallet.
1 Credit = 1 USD

Credits are manually added or auto-charged (if Auto-Top-Up is enabled).

Where Credits Are Used

Credits are used for:

• Additional mailboxes beyond your subscription

• Purchasing domains

• Pre-warmed domain + mailbox bundles

• Add-ons:

  • Inbox Placement Tests

  • Email Validation

  • Future add-on services

• You can also buy 100% of your mailboxes using credits only

Credits & Renewals

If your mailboxes were purchased using credits:

• You must load credits manually before renewal, or

• Enable Auto-Top-Up → InboxKit will auto-charge your card when your wallet is low

Check wallet & top-up settings in:
Settings → Billing → Wallet Balance

Invoices vs Receipts

Where to Check Billing Information

1. Subscription Management

Sidebar → Subscription
You can view:

• Current plan

• Renewal schedule

• Upgrade/downgrade options

• Billing cycle

2. Wallet Logs (Credit History)

Sidebar → Wallet Logs
Shows:

• Credit top-ups

• Domain purchases

• Mailbox renewals

• Auto-top-up transactions

• Balance changes

3. Billing Overview

Settings → Billing
Includes:

• Wallet Balance

• Total credits used

• Auto Top-Up settings

• Subscription summary

Quick Summary

Subscriptions

• Automatic renewals

• Invoices provided

• Best for steady, predictable monthly mailbox usage

Credits

• Pay-as-you-go flexibility

• Used for domains, add-ons, warmups

• Option to Auto-Top-Up your wallet

• Receipts only (no invoices)