Zernio alternative
Zernio alternative for Instagram DM automation:
ReplyKaro compared in plain text.
Zernio is a social media API for developers and agencies, covering posting, comments and DM automation across platforms. This page compares it with ReplyKaro fairly, using only details we could verify, and tells you when Zernio is the better choice.
Last updated October 12, 2026
- 1,000 DMs / month
- ReplyKaro free plan
- $3 / month
- ReplyKaro paid plans from
- Instagram login
- Connects via
- 12 October 2026
- Zernio data checked
What is Zernio?
Zernio is a social media API for developers and agencies, covering posting, comments and DM automation across platforms.
- You are a developer or agency building your own product on a unified social API.
It is a developer API covering posting, analytics, inbox and ads across many platforms, not a ready-made creator dashboard.
Zernio vs ReplyKaro at a glance
Every cell below is plain text so you can read it, copy it and check it. "Check their site" means we could not confirm the detail from public sources. It does not mean the feature is missing.
| Zernio | ReplyKaro | |
|---|---|---|
| Free plan | Yes. The first 2 connected accounts are free. | Yes. 1 Instagram account, 3 active automations and 1,000 DMs a month. No card needed. |
| Paid plans | Priced per connected account: $6 each for accounts 3 to 10, $3 each for 11 to 100, then $1. Outbound messages are free for the first 10,000 a month, then $0.0001 each. Some features bill from the first unit (for example provisioned phone numbers). | From ₹99 a month in India or $3 a month elsewhere. Pro: ₹299 (India) or $9 a month with unlimited automations and DMs. |
| How pricing works | Per connected account plus usage. | Flat monthly price, not per contact. |
| Ask someone to follow before sending a link | Check their site | Follow-Gate, included on every plan including the free plan. |
| Story reply and Story mention automation | Check their site | Included from the Starter plan. |
| Billing in rupees (UPI, cards, net banking) | Check their site | Yes, through Razorpay. USD plans are available for global creators. |
| Check their site | No. ReplyKaro covers Instagram and Facebook Messenger. | |
| AI replies | Check their site | AI Studio, which uses AI credits. |
| More than one Instagram account | Check their site | Growth plan: 5 accounts. Agency plans: 10 accounts. |
Information about Zernio comes from its public pricing page, help pages and published reviews, last checked 12 October 2026. Plans change, so confirm on Zernio's site. If anything here is out of date, email hello@replykaro.com and we will correct it within 7 days.
When ReplyKaro may be the better fit
- You want a ready-made dashboard instead of building on an API.
- You want to start free and pay a flat monthly price as you grow.
- You want Follow-Gate, Fan Mode (points and tiers) and Story automation without a separate add-on.
- You want rupee billing with UPI, or a simple $3 starting plan if you are outside India.
When Zernio may be the better fit
- You are a developer or agency building your own product on a unified social API.
How Zernio's pricing works, and what it means for you
Zernio: Per connected account plus usage. ReplyKaro charges a flat monthly price per plan, with limits on accounts, active automations and DMs a month (1 Instagram account, 3 active automations and 1,000 DMs a month on the free plan).
The practical difference is how your bill behaves when your audience grows. With a flat plan the price changes only when you move to another plan. With a plan that depends on contacts, messages or credits, the bill follows your activity. Estimate your own numbers before you compare headline prices.
Should you choose Zernio or ReplyKaro? A decision guide
| If this describes you | Look at |
|---|---|
| Your audience comments on Instagram and you mostly send links, files and a follow-up question | ReplyKaro, which is built for comment-to-DM and Story automation |
| You want to try a tool free on your own account before paying anything | ReplyKaro's free plan, and the free option on Zernio's page if it lists one |
| You need a feature only Zernio lists | Zernio |
| You pay in rupees and prefer UPI | ReplyKaro (billing through Razorpay); check Zernio's page for its billing currency |
| You run several client accounts | Compare the account counts on each plan: ReplyKaro Growth lists 5 accounts and Agency plans list 10 |
What to check in the first week after switching
- Comment the keyword from a second account on each post and confirm the DM arrives.
- Check that no post still has an active automation in the old tool.
- Look at the dashboard for DMs sent, replies and leads, and compare with last week.
- Review your monthly DM usage against your plan so you do not hit the cap during a launch.
- Keep the old account for a week or two in case you need to compare results.
How we keep the Zernio information accurate
The Zernio details on this page come from its public pages and other public sources, last checked 12 October 2026. Each statement is limited to what those pages showed. If something is missing, the page says Check their site so you know to look.
If you represent Zernio or you see a detail that is out of date, email hello@replykaro.com and we will correct it within 7 days.
Questions to ask before you choose any tool
- Does it connect through Instagram's official API and never ask for your password?
- Is the price flat, or does it grow with your contacts or messages?
- Is there a free plan so you can test with your own account?
- Can you see which links people tap?
- Can a person take over an automated chat?
- Does the vendor publish its pricing, so you can check it yourself?
How to move from Zernio to ReplyKaro
- 1
Create a ReplyKaro account
Sign in with Instagram. ReplyKaro uses Instagram's official login and never asks for your password.
- 2
Connect a Professional account
Your Instagram account must be a Business or Creator (Professional) account for any automation tool to work.
- 3
Rebuild your Zernio automations
Pick the post or Reel, set the trigger keyword, write the DM and add a link or file. Most automations take a minute.
- 4
Test with a comment
Comment the keyword from another account and confirm the DM arrives and the link works.
- 5
Switch off the matching Zernio automation
Instagram allows one private reply per comment. Pause the old automation on that post before you go live so people are not messaged twice.
Reviews
What customers say on Trustpilot
78% 5-star · 22% 4-star · as of October 5, 2026
Indi website with a friendly UI and competitive prices. You can try their free version before commiting. The payment process is trustworthy (already finished one month subscription and upgraded to a yearly one)
Marion Getto · DE · Oct 3, 2026
I have been using for a few days now. Very smooth experience and very affordable plans. Same features are 30 times in other companies. Keep up the good work!! 👍
Ravinder Rawat · IN · Sep 23, 2026
It’s been pretty good I’ve been using it since two months. And they are very responsive when I reach out to them!
Hrithika · IN · Sep 20, 2026
Reviews are quoted as written by the reviewers. Read all on Trustpilot
FAQ
Frequently asked questions
Is ReplyKaro a good alternative to Zernio?
It depends on your channel. Zernio is a developer api; ReplyKaro focuses on Instagram and Facebook comment-to-DM and Story automation. If Instagram is your main channel, ReplyKaro is worth a free trial.
How do Zernio and ReplyKaro pricing compare?
Yes. The first 2 connected accounts are free. Priced per connected account: $6 each for accounts 3 to 10, $3 each for 11 to 100, then $1. Outbound messages are free for the first 10,000 a month, then $0.0001 each. Some features bill from the first unit (for example provisioned phone numbers). ReplyKaro: free plan (1 Instagram account, 3 active automations and 1,000 DMs a month), paid plans from ₹99 a month in India or $3 a month elsewhere. Prices were checked on 12 October 2026 and can change, so confirm on each pricing page.
Does ReplyKaro have a free plan?
Yes. The free plan includes 1 Instagram account, 3 active automations and 1,000 DMs a month, with Follow-Gate and Fan Mode, and no card is needed. Paid plans start at ₹99 a month in India or $3 a month elsewhere.
Can I use Zernio and ReplyKaro together?
Yes. They serve different jobs and connect to different channels, so they do not conflict.
Will I lose my contacts if I leave Zernio?
Your history stays in Zernio. ReplyKaro starts fresh and builds a new subscriber list as people interact. If Zernio lets you export contacts, do that before you cancel.
Is ReplyKaro safe for my Instagram account?
ReplyKaro uses Instagram's official API, never asks for your password and only messages people who commented a keyword, replied to your Story or messaged you. It sends within Meta's limits. No tool can guarantee an account will never be restricted.
Is the information about Zernio on this page accurate?
We checked Zernio's public pages on 12 October 2026. If you see something out of date, or you represent Zernio, email hello@replykaro.com and we will correct it within 7 days.
What should I check on Zernio's pricing page?
Look at the free plan limits, what each paid plan includes, how the price changes as you grow, the billing currency, whether tax is added, and what happens at a limit. Compare these with ReplyKaro's plans on the pricing page.
How long does it take to move from Zernio to ReplyKaro?
Connecting an account and rebuilding one automation takes a few minutes. Plan an hour for several automations, plus a test comment on each post.
Does ReplyKaro also work for Facebook?
Yes. ReplyKaro automates Instagram and Facebook Messenger. Facebook Pages have separate plans.
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Follow-Gate
Ask people to follow before a link is sent.
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Set up your first automation.
ReplyKaro pricing
Every plan and limit.
Try ReplyKaro free
Connect your Instagram account and build a keyword automation before you decide anything. No card needed.