InboxSweeper vs Mailstrom
InboxSweeper
github.com
Mailstrom
mailstrom.coSide by side
| Figure | InboxSweeper | Mailstrom |
|---|---|---|
| Price from | Free | $5/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 6 |
| Spec score · Email Cleanup Software | 8.7 (#5) | 8.4 (#9) |
| Authentication | The product uses a scoped Gmail or Yahoo app password over IMAP rather than OAuth or Google Sign-In. | For Gmail, Outlook and Yahoo, Mailstrom says it uses IMAP through OAuth2 so it does not receive the account password. |
| Email providers | Gmail is fully supported; Yahoo and other IMAP inboxes are experimental. | The FAQ names Gmail, Outlook, AOL, iCloud, Yahoo, and Microsoft Exchange accounts with IMAP enabled as supported connection examples. |
| Integrations | Documented integrations include Gmail, Yahoo, generic IMAP providers, Claude Code, Codex, Jules, Cursor, and Gemini CLI workflows. | Mailstrom connects to Gmail, Outlook, AOL, iCloud and other providers that support IMAP. |
| Support | The project directs users who encounter an unlisted issue to open a GitHub issue with their OS, browser, and the exact wording of the problem. | Mailstrom directs users with questions or issues to [email protected]. |
| What it does | InboxSweeper bulk-cleans promotional and newsletter email, unsubscribes from mailing lists, moves selected mail to Trash, and reports selected senders as spam. | Mailstrom is a web-based email client for bulk deleting, archiving and moving hundreds or thousands of messages. |
Plans
Mailstrom
- Basic$9 a month
- Plus$14 a month
- Pro$29.95 a month
- Basic$59.95 a year
- Plus$99.95 a year
- Pro$199.95 a year
In their own words
InboxSweeper
InboxSweeper is a free, open-source tool for clearing old promotional mail and newsletters and unsubscribing from mailing lists. It supports Gmail fully; Yahoo and other IMAP inboxes are experimental. Choose among three sweep modes: Sloth targets mail older than two years, Normal mail older than one year, and MadMax includes recent promotional mail. Their respective run caps are 25, 50, and 100 senders. Before moving messages, sweeps show counts; financial, security, payment, receipt, and government mail is protected. You can unsubscribe, move selected messages to Trash, or report senders as spam. Trash messages are described as recoverable for about 30 days. One-click and mailto unsubscribe options are supported; web-link-only options are flagged for manual handling. The tool runs on your computer and says it does not upload mail, credentials, or tokens. It offers a local browser interface, Windows executable, terminal CLI, and AI-agent instructions. It uses a scoped app password rather than Google OAuth, with credentials stored in macOS Keychain or a locked file.