Quick picks: who should buy which?
- You or a teammate will answer threads, and you want to hear about them fast across many communities: Syften Standard, $49.95 a month. Every Syften plan.
- You want an AI agent to read and triage the matches: Syften PRO, $119.95 a month, the plan with webhooks and MCP.
- Nobody on the team has the hours to write replies, and you want comments placed every day: CommunityMentions, $1,000 a month after a $1 setup charge.
- You want to read what we'd post before deciding: the free sample, first comments in about 2 minutes.
- You want Reddit alerts for free: F5Bot covers 5 keywords at no cost.
Line by line: what each one does
Syften's column comes from its pricing section and FAQ, read November 10, 2026. Ours comes from our pricing section, our company facts and our delivery database.
| CommunityMentions (ours) | Syften | |
|---|---|---|
| What you get | Comments placed for you, with a daily Slack report | Alerts when your filters match |
| Price | $1,000 a month after a $1 setup charge | $29.95, $49.95 or $119.95 a month; X +$40 and YouTube +$20 on Standard and PRO |
| Contract | Month-to-month; billing starts only after you approve the setup in Slack | Monthly plans; we saw no yearly plan on its pricing section |
| How you start | Free sample, no card | 14-day PRO trial, no card |
| Who finds the threads | We do, from your site and the filters you approve | Syften matches the filters you write, or the ones its automated onboarding sets up |
| Who writes and posts the reply | AI writes in a voice you approve in Slack; people with established accounts post | You, or your own AI agent |
| Where | Reddit, YouTube, Medium, LinkedIn, X | The web, Reddit, Hacker News, Indie Hackers, GitHub, Stack Exchange, forums, podcasts, Slack communities, Bluesky, Mastodon and more; X and YouTube as add-ons; no LinkedIn |
| Volume | We aim for 5 to 10 comments a day across all five channels combined. Delivered: a median of 49 verified placements per brand in 30 days, 9 on Reddit (middle half 2 to 123) | 100, 200 or 500 community results a day, by plan |
| Speed | Daily, once the voice is approved | Aims for at most 1 minute on Reddit and at most 15 minutes on X, by its FAQ |
| Slack | Approval and daily reports happen there | Alerts in Slack on Standard and PRO |
| API or MCP | An MCP server for subreddit data | API on every plan; webhooks and MCP on PRO |
| Tells you about every mention of your brand | No | Yes, within its plan limits |
What does a year of each cost?
A year of Syften Standard is $599.40, or $1,319.40 with X and YouTube. A year of CommunityMentions is 12 months at $1,000 plus the $1 setup charge, $12,001 in all. The difference pays for the reading and writing: Syften's price leaves out the hours someone spends opening threads, checking subreddit rules and writing replies.
| Option | 1 month | 12 months |
|---|---|---|
| Syften Entry | $29.95 | $359.40 |
| Syften Standard | $49.95 | $599.40 |
| Syften PRO with X and YouTube | $179.95 | $2,159.40 |
| CommunityMentions (ours) | $1,001 | $12,001 |
How many alerts turn into a reply worth posting?
Few. In 84 finished samples from our site form between September 17 and November 4, 2026, the median run found 528 conversations and kept 35 as relevant, about 1 in 15 (the ratio of two medians). Those runs search by topic and use our own scoring, so treat it as a guide to how much sifting sits between a match and a comment. Syften's AI filtering on Standard and PRO does the first sift. Writing a useful reply that survives the subreddit's moderators is still on you.
What recent delivery looks like
In the 30 days from October 7 to November 5, 2026, the median of 55 client brands got 49 verified placements across Reddit, YouTube, Medium, LinkedIn and X, 9 of them on Reddit. The 25th percentile was 2 and the 75th percentile 123. That count includes brands that started or paused partway through the window. A founder who mostly wants Reddit and Hacker News and will write their own replies gets more for the money from Syften.
Can you run both?
Yes. They do different jobs. Syften can watch your brand name, competitors and problem phrases across developer communities, so you hear about a complaint or a comparison thread within minutes. CommunityMentions places comments in threads about your category. We don't alert you to each mention of your brand, so keep an alert tool if you want to answer those yourself.
Where Syften wins
- Price: $49.95 a month for Standard, a twentieth of ours.
- Coverage of places we don't post: Hacker News, GitHub, Stack Exchange, Indie Hackers, podcasts, forums and Slack communities.
- Speed: it aims for alerts within a minute on Reddit, by its FAQ.
- Every reply is yours, written in your words from your own account.
- API, webhooks and MCP for teams that want their own agent to work the matches.
Where CommunityMentions wins
- Nobody on your team reads alerts or writes replies.
- It covers LinkedIn, which Syften does not monitor, and posts on Medium, which Syften covers only as part of the open web.
- You read a free sample of the comments before paying anything.
- A daily Slack report links every comment that passed our same-day check and counts those removed before it.
How we compared
Syften's plans and features come from its pricing section and FAQ on syften.com, read November 10, 2026. Our numbers come from our delivery database and run logs. If Syften's page says something different now, its page wins.
Sources
- Syften's pricing section and FAQ, read November 10, 2026.
- CommunityMentions delivery database, verified placements October 7 to November 5, 2026, read November 6, 2026.
- CommunityMentions run logs: 84 finished samples from the site form, September 17 to November 4, 2026.
- Our price and terms: pricing section and company facts, read November 10, 2026.