APP IDEA #1 · MARKETING · SAAS

Replymer — human-written replies that recommend your product across Reddit and X, $9.7K MRR

Replymer monitors Reddit and X 24/7, finds conversations where your product would genuinely help, and publishes authentic human-written replies recommending it — from real accounts with posting history. $9.7K last 30 days on TrustMRR. The human-not-AI angle is the differentiator in a category full of bots.

$9.7K

Last 30 days revenue (TrustMRR verified)

24/7

Reddit + X monitoring

Human

Real writers, not AI bots — the core product differentiator

Autopilot

Set up once, team handles everything

01 / HOW IT WORKS

What the app actually does

Replymer's positioning is simple: organic social recommendation marketing done by humans so it doesn't look like marketing. The AI-driven alternatives get flagged as spam; Replymer's human-written replies don't.

Client fills in a short brief about their product and target keywords

The onboarding describes what the product does, who it's for, what conversations signal buying intent, and what tone to use.

Replymer's team monitors Reddit and X for relevant conversations

Keyword and topic monitoring runs 24/7 — surfacing threads where someone is asking for a solution the client's product provides.

Human writers craft authentic replies that recommend the product

Not AI-generated text — actual writers who understand the community norms of specific subreddits and how to reply helpfully, not spammily.

Replies are published from credible, established accounts

Not fresh accounts — existing accounts with posting history, which is what separates this from generic Reddit spam.

02 / INDIA POTENTIAL

Does this work as an India play

Indian SaaS founders and D2C brands desperately need organic discovery channels that aren't paid ads — Reddit is underused by Indian businesses compared to global ones, and X engagement for Indian products is still wide open.

Reddit India

Indian subreddits (r/india, r/bangalore, r/indiabusiness, r/startups) are growing fast and have almost zero genuine product recommendation activity from Indian companies.

₹4,999/mo

Realistic India-priced entry tier vs Replymer's $49/month (~₹4,100) — competitive but with an India-specific focus.

Quora India

Quora is still enormous in India and almost no tool monitors it for product-recommendation opportunities — an India-specific add-on.

Hinglish

Replies in Hinglish for Indian-language forums and WhatsApp groups — a distribution channel no global tool supports.

03 / THE WEEKEND BUILD

Friday to Sunday, hour by hour

Scoped to Reddit monitoring only for v1 — skip X. A Reddit monitoring + client dashboard + reply queue is fully achievable in a weekend.

Friday

Evening · 3 hrs

7–8 PM Set up a Next.js project, Supabase for database/auth, and connect to the Reddit API to search posts by keyword.

8–9 PM Build the client onboarding form — product description, target keywords, subreddits to monitor, and tone guidelines.

9–10 PM Build the keyword monitoring job — scheduled cron that searches Reddit every hour and saves matching posts to Supabase.

Saturday

Full day · 7 hrs

Morning Build the opportunity queue dashboard — matching Reddit posts displayed for the client to approve, each with a "write reply" action.

Afternoon Add a Gemini API draft generation step — AI generates a draft reply that human writers can edit before publishing.

Evening Build the reply publishing flow via Reddit API — writers can post approved replies directly from the dashboard.

Sunday

5 hrs

Morning Add performance tracking — for each published reply, track upvotes, comment engagement, and conversions via UTM links.

Afternoon Razorpay integration — Rs4,999/month for 30 replies across up to 10 keywords.

Evening Test end-to-end with a real product brief, find matching Reddit threads, generate draft replies, confirm publishing, record the demo.

04 / APP STACK

What you're actually building with

Next.js 14

Frontend + API routes

Client dashboard, opportunity queue, and reply publishing in one framework.

Supabase

Database + auth

Stores client briefs, matched Reddit posts, draft replies, and performance data.

Reddit API

Monitoring + publishing

Searches Reddit for matching conversations and publishes replies from client accounts.

Gemini API

Draft generation

Generates first-draft replies that human writers edit before publishing.

Vercel Cron

Monitoring scheduler

Runs the Reddit keyword search every hour automatically.

Razorpay

Payments

Rs4,999/month subscription based on reply volume.

05 / WHERE & HOW TO DEPLOY

Going live

Where: Vercel for the app and cron jobs, Supabase for the database. Note: Reddit API has rate limits — a paid API plan may be needed at volume. Publishing from client accounts requires OAuth per Reddit account.

Set up a Reddit API app and get OAuth credentials — publishing requires per-account OAuth, not just a read API key.

Push your project to GitHub, import into Vercel, add environment variables.

Set up a Vercel Cron Job to run the Reddit keyword monitoring every hour.

Deploy — Vercel gives you a live .vercel.app URL in under a minute.

Point a custom domain at it from Vercel domain settings.

06 / MARKETING & REVENUE

Getting paying users

How to market it

Post the "this Reddit comment drove 47 signups for a SaaS product last week, no ad spend" case study as a reel.
Run 10-20 reels/day across multiple accounts targeting SaaS founders, D2C brand owners, and startup marketers separately.
Get featured in Indian SaaS founder communities on Slack, LinkedIn, and WhatsApp groups.
Offer the first month at Rs1,999 introductory rate for the first 20 clients — testimonials are worth more than the revenue at this stage.
Add Quora India monitoring as an India-specific differentiator — no global tool does this.

Who pays, and why

Indian SaaS founders who know organic social works but do not have 2 hours/day to manually scroll Reddit and X.
D2C brands wanting product recommendations in relevant communities without the spam reputation of bot-driven tools.
Marketing agencies managing multiple client brands who need scalable organic recommendation marketing.

Scenario

Paying users/mo

Revenue/mo

Slow start

20 clients x Rs4,999

Rs99,980

SaaS community traction + reels

150 clients x Rs4,999

Rs7,49,850

10-20 reels/day + agency resellers

600 clients x Rs4,999

Rs29,99,400

07 / START BUILDING

Paste this into Claude or GPT

This prompt sets up the full build context so the AI scopes, plans, and starts coding the project with you from message one.

BUILD_PROMPT.txt

I want to build a Reddit monitoring and reply marketing tool for the Indian market, inspired by Replymer, scoped to ship a working version in a single weekend. Core flow: 1. Client fills in an onboarding brief — product description, target keywords, subreddits to monitor, tone guidelines. 2. A scheduled cron job searches Reddit every hour for matching posts and saves opportunities. 3. A Gemini API draft generation step creates a first-draft reply for each opportunity. 4. Client or writer reviews the draft in a dashboard, edits it, and approves for publishing. 5. Approved replies are published directly to Reddit via the Reddit API. 6. Performance tracking shows upvotes, engagement, and conversions via UTM links. Stack: Next.js 14, Supabase, Reddit API, Gemini API, Vercel Cron, Razorpay Rs4,999/month. Deploy: Vercel. Help me step by step: 1. Walk me through Reddit API OAuth setup — difference between read-only and write access for publishing. 2. Build the keyword monitoring cron job and opportunity storage. 3. Build the Gemini draft generation step. 4. Build the client dashboard with approve/edit/publish flow. 5. Build the Reddit API publishing integration. 6. Add performance tracking. 7. Wire up Razorpay. Keep explanations short and India-context aware. Note that Quora India monitoring could be a significant differentiator worth building after v1. Push me to ship the smallest working version first. If I get stuck, tell me to ask @buildwithkanhaa.