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InstantDM
CreatorFlow
DMdaddy
Chatfuel
LinktoDM
ReplyRush
Automate Instagram DMs for creators and businesses Free alternative to Manychat, Zorcha, LinkDM, and other expensive tools. Collect leads, reply instantly, and grow your audience effortlessly. Get started today with Story and Comment-to-DM Flows!

Birdeye
Podium
NiceJob
AI-Reply
ReplyGenius.AI
Resparo
GatherUp
AI-powered Chrome extension + dashboard to respond to customer reviews on Google, TripAdvisor, Booking, Yelp & more. No API needed. Multilingual. Affordable alternative to enterprise review management tools

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | chatautodm.com | reply-stack.app |
| Pricing | ||
| Company | Startup from India · 1 - 9 employees · 2025 | Startup from France · 10 - 19 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


ChatAutoDM is a simple and fast Instagram automation platform designed for creators, coaches, and small businesses. It offers all the essential features you’d expect from modern DM automation tools—such as Comment-to-DM, Story Reply automation, and DM autoresponders—without the complexity or...
No description of ReplyStack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ChatAutoDM and ReplyStack.
ReplyStack's answer:
ReplyStack was born from a simple frustration: existing review management tools either cost hundreds of dollars per month or only work with a handful of platforms. After seeing local businesses struggle to keep up with reviews scattered across Google, TripAdvisor, Booking, and Facebook, I built a solution that works everywhere — by combining a lightweight Chrome extension with a centralized dashboard. No complex integrations, no enterprise pricing, just a practical tool that helps SMEs protect their online reputation.
ReplyStack's answer:
Backend: Laravel 12 (PHP 8.3+) with Sanctum authentication Frontend Dashboard: React + TypeScript + Vite + Tailwind CSS Browser Extension: Plasmo framework (Chrome & Firefox) AI: Claude API by Anthropic for response generation Database: MySQL 8 with Redis caching Infrastructure: Railway (hosting), Cloudflare (DNS/email)
ReplyStack's answer:
ReplyStack is currently in early launch phase. We're onboarding our first customers from the restaurant and beauty salon industries in France.
ReplyStack's answer:
ReplyStack is the only review management tool that combines a Chrome extension with a SaaS dashboard. This hybrid approach lets businesses respond to reviews on platforms that don't offer APIs — like TripAdvisor, Booking.com, and Yelp — something competitors simply cannot do. Instead of expensive API integrations or risky scraping, our extension works directly in the browser where business owners already manage their reviews. It's legal, reliable, and works everywhere.
ReplyStack's answer:
ReplyStack's answer:
Small and medium businesses that depend on online reviews but lack the time or budget for enterprise reputation management tools. This includes restaurant owners, hotel managers, e-commerce sellers, beauty salon operators, healthcare providers, and auto repair shops. Our typical user manages 1-5 locations, receives reviews on multiple platforms, and wants to respond professionally without spending hours each week on it.
Share your experience with using ChatAutoDM and ReplyStack. For example, how are they different and which one is better?
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