



594 indie products share a category with WarmInbox (Email and Marketing). They are ordered by how many categories they have in common with it, then by upvotes from the community. For reference, WarmInbox describes itself as: “Email Warmup Tool”.
| Product | Upvotes | Launched |
|---|---|---|
| WarmInbox | 1 | Sept 2026 |
| Mailstand | 8 | May 2022 |
| Sidemail | 3 | Aug 2026 |
| tl;dr Marketing | 1 | Mar 2021 |
| Scrapybird | 1 | Jun 2022 |
| Maildroppa | 1 | Oct 2022 |
| Waitlist | 1 | Nov 2024 |
| Reach | 1 | Oct 2026 |
| Retainful | 0 | Apr 2022 |
| EmbedQuiz | 0 | Dec 2023 |