
ReplyFast
AI-powered comment management that helps creators engage with their audience 4x faster while maintaining their authentic voice.

ReplyFast
AI-powered comment management that helps creators engage with their audience 4x faster while maintaining their authentic voice.
Ranked #4080 on TrustMRR
No active subscriptions
1,102 followers on 𝕏
Revenue is verified with
Stripe API key.Last updated: Jul 30, 2026, 08:44 AM
AI-powered comment management that helps creators engage with their audience 4x faster while maintaining their authentic voice.
Helps YouTube creators engage with their audience faster and more efficiently by managing comments.
Audience
YouTube Creators
Pricing
Free: $0/mo, Creator Pro: $9.90/mo, Creator Pro Max: $29.90/mo
Domain Rating
replyfa.st
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Tech stack
Backend
Screenshot
replyfa.stProduct updates
More startups for sale
View MarketplaceCalBudget
CalBudget helps you take control of your finances with AI-powered budgeting. Instead of complicated spreadsheets or rigid budgeting apps, CalBudget analyzes your spending and automatically builds a personalized monthly plan that actually fits your lifestyle. Track expenses, understand your spending patterns, and get a clear picture of where your money is going — all in one simple dashboard.
Revenue (30d)
$1.2k
Asking Price
$2.9k
Multiple
0.2x
Linkeddit
An AI-powered all-in-one Reddit marketing platform that helps founders find customers who are already on Reddit asking for what they sell.
Revenue (30d)
$1.7k
Asking Price
$10k
$5k
Multiple
0.2x
SheetAI
SheetAI is an interactive AI spreadsheet tool on (Website and Google Sheets add-on) under one database control using Anthropic and OpenAI models to operate.(Microsoft Excel add-in code is ready to deploy). Next.js 15 + TypeScript monorepo, Postgres, Lemon Squeezy billing with subscriptions and pay-as-you-go credits, push-to-deploy. Big indexed SEO footprint: function reference, templates, use-cases, free tools. Monthly revenue = $155
Revenue (30d)
$267
Asking Price
$5k
Multiple
1.6x
Groups Watcher
Ready-to-pay leads are asking for your services in Facebook groups right now. Groups Watcher alerts you within 60 seconds, so you get to them first.
Revenue (30d)
$19k
Asking Price
$500k
Multiple
2.2x
Anonymous Startup
Mature, self-serve no-code SaaS with $19.3K verified MRR (1,012 active subscriptions) and $1.1M+ lifetime revenue. AI-assisted creation flow, drag-and-drop builder, and popular with freelancers & agencies. Runs on ~$6K/month with a small team at a 40-50% profit margin. Strong organic word-of-mouth acquisition channel.
Revenue (30d)
$19k
Asking Price
$160k
Multiple
0.7x
TradingBox Pro
Proprietary algorithmic trading technology. We recruit and train contract traders, then place them on our own software and prop firm capital. Now scaling through private-enterprise Operator licenses, franchise-style. ~$236k annualized run-rate, accelerating in just two months. The most sophisticated piece of privately held trading technology. Patentable stack that is 7 years young and only available to our in-house traders or Operators.
Revenue (30d)
$20k
Asking Price
$165k
Multiple
0.7x