ReplyRush and CommentDM both automate Instagram comment-to-DM flows at similar price points. The key differences are Facebook Messenger support, viral post handling, and how each tool manages Meta API rate limits.
| Feature | CommentDM ★ Best Pick | ReplyRush |
|---|---|---|
| Starting monthly price | $12/mo | $10/mo |
| Pricing model | Flat rate | Flat rate |
| Contact limits | None | None |
| DM volume cap | None (Meta rate limit only) | None (Meta rate limit only) |
| Instagram automation | ✓ | ✓ |
| Facebook Messenger | ✓ | ~ |
| Comment keyword trigger | ✓ | ✓ |
| Story reply trigger | ✓ | ~ |
| Viral post queue (transparent) | ✓ | ~ |
| Official Meta Graph API | ✓ | ~ |
| Free trial (no CC) | 7 days | ~ |
| First name personalization | ✓ | ~ |
ReplyRush is a direct competitor in the comment-to-DM automation space. It handles Instagram comment keyword triggers at a slightly lower starting price ($10/month) and has been building its user base through content marketing.
The catch: ReplyRush's Facebook Messenger support is limited and not prominently documented. Details on how it handles Meta's 200 DM/hour rate limit — a critical concern for creators running large campaigns — are not clearly published. API compliance documentation is also sparse, which matters when connecting your business account.
Why people switch to CommentDM: Platform completeness and transparency. CommentDM covers Instagram and Facebook Messenger equally, documents its rate limit queue system openly, and is built exclusively on Meta's official Graph API. For creators who also run a Facebook Page or want certainty about what happens during a viral post, CommentDM provides clearer guarantees for $2/month more.
ReplyRush starts at $10/month. CommentDM Pro is $12/month — $2 more, but with Facebook Messenger support included. For teams managing multiple accounts, CommentDM Creator at $29/month allows 3 Instagram + 3 Facebook accounts vs. needing separate subscriptions on ReplyRush.
ReplyRush's Facebook Messenger support is limited compared to CommentDM's first-class Messenger integration. CommentDM connects both platforms through a single Facebook Login and lets you run independent automation flows for each in the same dashboard.
Yes. CommentDM uses the official Meta Graph API exclusively — specifically the Instagram Messaging API and Facebook Pages Messaging API. This means your account is not at risk of suspension from using unofficial methods or browser automation.
CommentDM automatically queues DMs when you approach Meta's 200 DM/hour API rate limit. The queue drains as slots open — no DM is dropped. You can watch the queue in real time in your dashboard. This prevents the silent failures that plague tools not built with rate limit handling in mind.
Yes. CommentDM offers a 7-day free trial with no credit card required. You can run both tools simultaneously during the trial to compare results before canceling ReplyRush.
Instagram + Facebook Messenger. Viral queue protection. Official Meta API. 7-day free trial.
Start Free Trial →7-day free trial · No credit card · Cancel anytime