Syften review: what $29.95 buys, what $49.95 adds, and why Redwatcher is the better alternative for Reddit
Updated 20 September 2026
In short
Syften is a keyword alert tool for Reddit, Hacker News, forums and the web. Its $29.95 plan has three community filters and 100 community results a day, and sends what a filter hits with no relevance check. AI filtering starts at $49.95. Redwatcher scores every match on its $29 plan, with reasons, and puts every alert channel on every plan.
Syften's figures were read from syften.com/pricing and Redwatcher's from redwatcher.com/pricing on 20 September 2026.
If you are watching Reddit for a brand or a business, check which Syften plan has AI filtering before you check the price.
Redwatcher is a Reddit monitoring tool. Tracks keywords, brand mentions and competitors across the subreddits you choose, scores every match for relevance, and alerts by email, Slack, Telegram or webhook around the clock. From $29/month per project.
RedwatcherReddit monitoring, every match scored
RedwatcherStart free Seven days, no card. From $29 a month after.
How we checked
Read off Syften's own pages on 20 September 2026. syften.com/pricing, the three plan cards and the FAQ under them, syften.com/ai-social-listening for how it describes AI filtering, and syften.com/documentation for the filter syntax. The pricing page has no monthly-or-yearly toggle and shows no other price, so the monthly prices are the ones on the cards. We have not used a paid Syften plan. Redwatcher wrote this page. Of the two Syften screenshots below, we took the homepage on 30 August 2026 and again on 20 September 2026, when it had not changed, and the pricing cards on 20 September 2026.
What does Syften do?
Syften sends you an alert when a search query you wrote, which it calls a filter, matches a new post or comment on Reddit, Hacker News, Indie Hackers, GitHub, the Stack Exchange sites, forums, podcasts, Slack communities, Bluesky, Mastodon, YouTube, X or the public web. Alerts arrive by email, and by Slack, RSS, the API or a webhook on the plans that include them. From $49.95, you can add an AI rule to a filter, and Syften accepts or rejects each match against it before the alert goes out. Read from syften.com/pricing and syften.com/ai-social-listening on 20 September 2026.
What does Syften cost?
$29.95, $49.95 or $119.95 a month, billed monthly, plus a Tailor made plan priced on request, and the trial is 14 days on the $119.95 plan with no card. Read from syften.com/pricing on 20 September 2026.
| Entry | Standard | Syften PRO | Tailor made | |
|---|---|---|---|---|
| Price | $29.95 a month | $49.95 a month | $119.95 a month | custom |
| Community filters | 3 | 20 | 100 | custom |
| Community results a day | 100 | 200 | 500 | custom |
| Web filters | 1 | 5 | 20 | custom |
| Web results a day | 5 | 20 | 50 | custom |
| Archive search | 7 days | 1 month | unlimited | custom |
| Slack | not listed | yes | yes | custom |
| AI filtering | not listed | yes | yes | custom |
| API access | not listed | yes | yes | custom |
| Webhooks and MCP | not listed | not listed | yes | custom |
| X/Twitter and YouTube monitoring | not listed | paid add-on, price not on the page | paid add-on, price not on the page | custom |
What does $29.95 a month buy on Syften?
Three community filters, 100 community results a day, one web filter, five web results a day and a seven-day archive, with alerts by email. One filter can hold several terms, but if you want your brand, your competitors and a problem phrase kept as separate alerts, that is three filters, and three is all this plan gives you. Read from syften.com/pricing on 20 September 2026.
Why Redwatcher is the better alternative to Syften
- Every match is scored on the $29 plan. On Syften's $29.95 plan what your filter hits is sent with no relevance check, and AI filtering starts at $49.95. Redwatcher scores every post and comment from 0 to 100 before it is sent, on the $29 plan and every plan above it, and only what scores above the bar you set reaches you.
- A score with the reason, and a correction that becomes a rule. Syften's AI filter is a true-or-false rule you write yourself, one per filter, and when it is wrong you rewrite it. Redwatcher writes the reason under every thread: "A buying decision in progress, with the requirements and the budget stated" scores 94. When a score is wrong, you say what was wrong and it becomes a rule that every later match is judged against.
- Plans go by keywords and subreddits, not by results a day. Syften's daily cap, 100 community results a day on the $29.95 plan, is listed per plan and covers every community at once, so Reddit shares it with Hacker News, forums, podcasts and the rest. Redwatcher's plans are 25, 50 or 100 keywords with the same number of named subreddits.
- Email, Slack, Telegram and a signed webhook on every plan. On Syften, Slack starts at $49.95 and webhooks at $119.95, and neither is on the $29.95 card. On Redwatcher all four are on the $29 plan, and Slack and Telegram install in one click.
- A client or a second brand is its own project. Syften's FAQ says an agency runs every customer from one account, with the filters tagged per customer, so every client shares the plan's filters and its daily results. On Redwatcher each project has its own keywords, subreddits, rules and alert channels, and you pick a plan for each one.
The two larger plans are $49 a month for 50 keywords and subreddits and $89 for 100, with every feature on every plan and unlimited team members. Redwatcher watches Reddit only and has no plan at $0. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
RedwatcherReddit monitoring, every match scored
Start free Seven days, no card. From $29 a month after. See pricing
Syften vs Redwatcher, side by side
| Syften | Redwatcher | |
|---|---|---|
| Entry price | $29.95 a month | $29 a month per project |
| What the entry price includes | 3 community filters, 100 community results a day, 1 web filter, 5 web results a day, a 7-day archive | 25 keywords, 25 subreddits, every feature |
| Relevance judgement at the entry price | none listed on the card | a score from 0 to 100, with the reasons |
| AI judgement | from $49.95, a true-or-false rule you write per filter | on every plan, a score with the reason written under the thread |
| Correcting a wrong verdict | Syften's own advice is to refine the filter or the rule | say what was wrong, and it becomes a rule |
| Results a day | 100, 200 or 500 by plan, across every community | everything above your bar is sent |
| Slack | from $49.95 | every plan |
| Webhooks | from $119.95 | every plan, signed |
| Telegram | not on the pricing page | every plan |
| Reddit's share of the daily allowance | shared with Hacker News, forums, podcasts and every other community on the plan | all of it, the plan is Reddit only |
| A second brand or client | one account, filters tagged per customer | another project, from $29 |
| Trial with no card | yes | yes |
| Plan at $0 | none | none |
| Writes or posts replies | not listed on its pages | no |
Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Which one to pick
Redwatcher, if Reddit is where your customers talk. The Syften alternative page has the two tools row by row, and the ranked list scores each tool on it at its entry price. Read from syften.com/pricing on 20 September 2026.
How do you move from Syften to Redwatcher?
Copy the terms out of each Syften filter and paste them into Redwatcher as keywords, one term to a line. Give it your website address and it proposes the subreddits to watch, then set the score you want to be alerted above and pick email, Slack, Telegram or a webhook. Run both for the week of the trial and compare what each one sends before Syften's next bill.
What other questions do people ask about Syften?
What is Syften?
Syften is a keyword alert tool that its pricing page describes as AI-filtered keyword monitoring for the public web, Reddit, X, Hacker News, forums, blogs, GitHub, YouTube, Slack communities, Bluesky, Mastodon and other online communities. You write a filter, which is a search query, and each match is sent by email, or by Slack, the API or a webhook on the plans that include them. From $29.95 a month. Redwatcher watches Reddit for 25 keywords at $29 and scores every match. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
How much does Syften cost?
Syften costs $29.95 a month for Entry, $49.95 for Standard and $119.95 for Syften PRO, with a Tailor made plan priced on request. Entry has 3 community filters and 100 community results a day. Standard has 20 filters and 200 results a day, with AI filtering, Slack and the API. PRO has 100 filters and 500 results a day, with webhooks and MCP. There is no annual price on the page. Redwatcher costs $29 a month per project. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Does Syften have a free trial?
Syften has a free trial: 14 days on the Syften PRO plan with no card, and there is no free plan. After the trial the plans start at $29.95 a month. Redwatcher has no free plan either: the trial is seven days with no card, then $29 a month per project for 25 keywords and 25 subreddits. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Does Syften have AI filtering?
Syften has AI filtering on its $49.95 and $119.95 plans, and not on the $29.95 plan. It works as a true-or-false rule you add to a filter, and each match is accepted or rejected against it before the alert is sent. Redwatcher scores every match from 0 to 100 with the reason written under the thread, on every plan including the $29 one. Read from syften.com/pricing, syften.com/ai-social-listening and redwatcher.com/pricing on 20 September 2026.
Does Syften monitor Reddit?
Syften monitors Reddit posts and comments for the keywords in your filters, and its pricing page FAQ describes it as a Reddit keyword monitoring tool. Reddit shares the plan's filters and its daily results with Hacker News, forums, podcasts, GitHub and every other community Syften watches, so there is no separate Reddit allowance. Redwatcher watches Reddit only, in the subreddits you name, and every match is scored before it is sent. Read from syften.com/pricing on 20 September 2026.
What is a filter on Syften?
A filter on Syften is a search query for the mentions you want to track, and one filter can hold several terms. The $29.95 plan includes three community filters, the $49.95 plan 20 and the $119.95 plan 100. Redwatcher counts keywords instead: 25 on the $29 plan, and a competitor you track counts as one keyword. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
How many results a day does Syften send?
Syften lists 100 community results a day on its $29.95 plan, 200 on the $49.95 plan and 500 on the $119.95 plan, plus 5, 20 or 50 web results a day, and the cap is listed per plan rather than per filter. Redwatcher's plans go by keywords and subreddits, 25, 50 or 100 of each, and everything that scores above the bar you set is sent. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Does Syften send alerts to Slack?
Syften sends alerts to Slack on its $49.95 and $119.95 plans, and the $29.95 card does not list Slack. Webhooks and MCP are on the $119.95 plan only. Redwatcher delivers alerts by email, Slack, Telegram and a signed webhook on every plan, including the $29 one, and Slack and Telegram install in one click. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Is Syften good for agencies?
Syften's pricing page FAQ says agencies can monitor multiple customers from one account, with separate filters for each brand tagged per customer, so every client shares the plan's filters and its daily results: 20 community filters and 200 community results a day on the $49.95 plan. On Redwatcher each client is a project of its own, with its own keywords, subreddits, rules and alert channels, from $29 a month. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
What is the best Syften alternative for Reddit?
The best Syften alternative for Reddit is Redwatcher. It scores every match from 0 to 100 with the reasons on its $29 plan, where Syften's AI filtering starts at $49.95, and it puts email, Slack, Telegram and a signed webhook on every plan, where Syften's Slack starts at $49.95 and webhooks at $119.95. Redwatcher's ranked list of Reddit monitoring tools scores each tool on it at its entry price. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Does Redwatcher have a free plan?
Redwatcher has no plan at $0. The trial is seven days with no card, and after it the plans are $29 a month per project for 25 keywords and 25 subreddits, $49 for 50 keywords and 50 subreddits, and $89 for 100 of each. Every feature is on every plan, including scoring, email, Slack, Telegram and webhook alerts, and unlimited team members. Read from redwatcher.com/pricing on 20 September 2026.
What is the difference between Syften and Redwatcher?
Syften watches Reddit, Hacker News, forums, the web and nine more sources, and all of them share the plan's filters and its daily results cap. It sends what a filter hits with no relevance check on its $29.95 plan, and from $49.95 adds an AI rule that accepts or rejects each match. Redwatcher watches Reddit only, in the subreddits you choose, scores every match from 0 to 100 with the reasons on every plan, and starts at $29 a month. Read from syften.com/pricing and redwatcher.com/pricing on 20 September 2026.
Redwatcher is not affiliated with Syften.