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Upthread vs Reddinbox

Reddinbox is an AI research agent that searches Reddit and four other networks, filters out spam and AI-written posts, and reports pain points, buying signals and sentiment. Upthread finds the Reddit threads Google and AI answers cite, drafts replies, and tracks each one.

Last checked Nov 7, 2026. Every fact about Reddinbox is numbered to its source at the bottom of the page.

On this page
  1. Why look beyond Reddinbox
  2. Who should choose which
  3. Reddinbox in brief
  4. Pricing, plan by plan
  5. Point by point
  6. What it watches
  7. Replying
  8. After you post
  9. Price and plans
  10. Switching from Reddinbox
  11. Reddit access is changing
  12. Questions
  13. Sources
  14. Related comparisons

Why people look beyond Reddinbox.

Reddinbox is audience research powered by an AI agent. You ask a question about your market, a competitor or a customer pain, and it searches Reddit, X, Bluesky, Hacker News and Facebook, removes spam and AI-written posts, and returns pain points, buying signals and sentiment with links to the source threads. 1

Plans are measured in conversations with that agent. Starter costs $39 a month for about 100 conversations and 3 Market Briefs; Pro costs $99 for about 266 and 5. Both include post and comment monitoring, and yearly billing gives 2 months free. 2

Upthread starts where research ends. It looks for the Reddit threads that Google and AI answers show your buyers, drafts replies grounded in each thread and its subreddit's rules, and follows each reply after you post it.

Who should choose which.

Who should choose Reddinbox

  • Budget comes first. Reddinbox starts at $39 a month, with a free trial and no card. 2
  • You want market research across Reddit, X, Bluesky, Hacker News and Facebook, with links to every source. 1
  • You want pain points and buying signals for product and content decisions rather than replies. 1

Who should choose Upthread

  • Research has told you where buyers talk on Reddit, and now you want to take part in those threads under your own name.
  • You want the threads that AI assistants and Google's AI answers lean on, not a summary of everything said.
  • You want each reply you post kept on record: how its score moved and whether it stayed up.

Reddinbox in brief

An AI research agent for Reddit, X, Bluesky, Hacker News and Facebook: pain points, buying signals and sentiment.

  • Says it is "an AI research agent that searches Reddit, X, Bluesky, Hacker News and Facebook, filters spam and AI slop, and surfaces pain points, buying signals and sentiment". 1
  • Starter costs $39 and Pro $99 a month, or $390 and $990 a year. 2
  • Starter includes about 100 conversations a month with its AI agent and 3 Market Briefs; Pro about 266 and 5. 2
  • Offers a free trial with no credit card required, but no permanent free tier. 2
  • Its Buying Signals feature scans Reddit, X and Hacker News daily, twice daily or weekly, and scores posts from 1 to 100 for buying intent. 3
  • Says Buying Signals surfaces the conversation and replying is still on you. 3
  • Says you need no accounts on these platforms, because it handles the data collection itself. 1
  • Offers a hosted MCP server that brings raw Reddit threads and full comments into AI assistants. 4

Pricing, plan by plan.

Reddinbox

Starter$39 a month, or $390 a year
About 100 conversations a month with the AI agent, 3 Market Briefs, post and comment monitoring, spam and low-quality filtering, priority support. 2
Pro$99 a month, or $990 a year
About 266 conversations a month with the AI agent, 5 Market Briefs, post and comment monitoring, spam filtering, priority support. 2
  • The free trial needs no credit card. There is no permanent free tier for the agent. 2
  • Its free tools work without an account, up to 5 uses a day. 2
  • Yearly billing gives 2 months free. 2

Upthread

Starter$49 a month
1 brand, 25 keywords, 25 buyer questions, 3 engines, 150 drafts a month, 1 seat. Discovery: Daily.
Growth$149 a month
3 brands, 100 keywords, 75 buyer questions, All engines, 600 drafts a month, 3 seats. Discovery: Every 6 hours.
Agency$499 a month
15 brands, 500 keywords, 300 buyer questions, All engines, 2,500 drafts a month, 10 seats. Discovery: Every 6 hours.

Yearly billing gives 2 months free. Every workspace starts with a 7-day trial on Starter limits, with no card. See full pricing.

Reddinbox and Upthread, point by point.

Each row sets a sourced fact about Reddinbox next to what Upthread does, grouped by what you would check first.

What it watches

PlatformsThey do more
ReddinboxReddit, X, Bluesky, Hacker News and Facebook. 1
UpthreadReddit only.
Finding threadsDifferent approach
ReddinboxBuying Signals: posts scored from 1 to 100 for buying intent in six categories; scores below 60 are filtered out. 3
UpthreadThreads from Google results and AI citations, ranked by Google rank, AI citations per engine, buying intent, freshness and how the subreddit treats brands.
AI answersUpthread does more
ReddinboxNo AI answer tracking listed. 1
UpthreadGoogle AI Overviews and AI Mode twice a week, from live Google results. ChatGPT, Perplexity, Gemini and Claude weekly through their APIs, labelled API.
How it reads RedditDifferent approach
ReddinboxSays "We handle all the data collection and analysis on our end". The method isn't stated. 1
UpthreadBuilt on your own logged-in browser, so Reddit's move to logged-in-only viewing doesn't break it. Discovery comes from Google results and AI citations, with no Reddit API.

Replying

DraftingUpthread does more
ReddinboxNone described. Replying is still on you. 3
UpthreadTwo drafts per thread, grounded in the thread, its top comments, the subreddit's rules and your facts. A lint and an AI judge check each one first.

After you post

After postingUpthread does more
ReddinboxNo reply tracking listed. 1
UpthreadScore over time, moderator removals, and the thread's citation history before and after your reply. Links carry UTM tags for your own analytics.

Price and plans

PriceDifferent approach
Reddinbox$39 / $99 a month, or $390 / $990 a year. Free trial, no card required. 2
Upthread$49 / $149 / $499 a month, or 2 months free yearly. A 7-day trial with Starter limits. No card required.

Switching from Reddinbox.

Enter your website and Upthread drafts a brand profile, with suggested competitors, keywords, buyer questions and focus subreddits that you can trim or extend using what your research turned up. Set the disclosure line your drafts will carry, choose engines and a country, and the first runs produce a ranked inbox within minutes. Installing the extension is optional.

What you bring across

  • The questions you ask your research agent. Rewrite them as buyer questions, and Upthread asks them in AI answers to find the Reddit threads cited.
  • The pain points and phrases you collected. They help you edit Upthread's suggested keywords and the brand facts its drafts rely on.
  • The subreddits where your market talks. Add them as focus subreddits so their threads rank higher in your inbox.

What works differently

  • Reddinbox answers research questions across five networks. Upthread works on Reddit only and turns each thread Google or an AI answer surfaces into an item in a ranked inbox. 1
  • Reddinbox surfaces buying signals and leaves the reply to you. Upthread drafts two replies per thread, checks them against the subreddit's rules, and adds your disclosure when a draft names your brand. 3
  • For research, Upthread's Insights show three things: the communities that matter for your brand, the competitors that cited threads recommend, and the questions, objections and phrases buyers use.

How Reddit access is changing

Reddit is closing its public API and moving toward logged-in viewing. This matters for any tool that reads Reddit, so each comparison states only what the tool itself says about its data source.

  1. On Oct 29, 2026, Reddit said it will shift to a primarily logged-in experience, starting with tests in select markets outside the US. 5
  2. 9to5Mac reported that Reddit will start requiring a logged-in account for most of its content. 6
  3. Reddit's CEO said most unauthorized access to its content happens through the logged-out experience. 7

Reddinbox and Upthread: questions.

Does Reddinbox write or post replies?

No. Its guide says Buying Signals surfaces the conversation and replying is still on you. Upthread drafts the reply for each thread and you post it from your own account. 3

Where does Reddinbox get its data?

It says it handles all the data collection and analysis on its end, so you need no accounts on the platforms; the method isn't stated. Upthread finds threads through Google results and AI citations and reads them in your own browser. 1

Which one costs less?

Reddinbox, at $39 a month for Starter against $49 for Upthread Starter. They do different jobs: Reddinbox researches what a market says; Upthread helps you reply in the Reddit threads buyers see. 2

How often does Reddinbox look for buying signals?

You choose daily, twice daily or weekly for each signal, add up to 15 subreddits if you want tighter targeting, and the first scan looks back 30 days. Upthread runs discovery on a schedule set by your plan and ranks threads by where buyers will see them. 3

Can I use Reddinbox and Upthread together?

Yes, and they fit in sequence: use a research agent to learn what your market complains about, then use Upthread to find the Reddit threads where those questions get asked and answered, and to draft your reply.

Sources

We read each page on the date shown. Reddinbox's own pages are named, not linked. Spotted something out of date? Email [email protected] and we will fix it.

  1. [1]Reddinbox homepage, checked Nov 7, 2026.
  2. [2]Reddinbox pricing page, checked Nov 7, 2026.
  3. [3]Reddinbox guide to Buying Signals, checked Nov 7, 2026.
  4. [4]Reddinbox MCP server page, checked Nov 7, 2026.
  5. [5]Engadget, checked Oct 29, 2026.
  6. [6]9to5Mac, checked Oct 29, 2026.
  7. [7]CyberInsider, checked Oct 30, 2026.

Run your first discovery, then judge for yourself.

Enter your website. Upthread drafts your brand profile, suggests buyer questions and subreddits, and runs your first discovery.

Start free trialSee pricing

No card required. 7 days with Starter limits.