Email, SMS, WhatsApp and CRM with a generous free tier.
Starts at
Free plan
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Free plan · 24 of 147 in sms & otp platforms
App Advisor lists 24 sms & otp platforms products with free plan, out of 147 in the category. 6 are made in India, 24 have a free plan and 22 offer a free trial. Most compared right now: Brevo, Klaviyo, Omnisend.
Compared
Ranked by how much buyers compare them. Not a paid ranking.
Email, SMS, WhatsApp and CRM with a generous free tier.
Starts at
Free plan
E-commerce email and SMS marketing.
Starts at
Free plan
Email and SMS for e-commerce.
Starts at
Free plan
Email, SMS, chatbots and push.
Starts at
Free plan
Low-cost email and SMS marketing.
Starts at
Free plan
Automatic expense tracking from SMS.
Starts at
Free
SMS and RCS.
Starts at
Free
CRM with WhatsApp, SMS and email outreach.
Starts at
Free plan
SMS marketing for Shopify.
Starts at
Free plan
SMS in Yotpo's retention suite.
Starts at
Free plan
WhatsApp and SMS greeting campaigns from Vyapar.
Starts at
Free plan
Email marketing, SMS and SMTP platform with newsletter automation.
Starts at
Free plan
On-call scheduling and alert routing tool that escalates alerts to the right engineer by SMS, phone and email.
Starts at
Free plan
SMS in Klaviyo.
Starts at
Free plan
Email and SMS marketing tool with a free plan and prepaid credit packs as well as subscriptions.
Starts at
Free plan
Email marketing and SMS platform with templates, automation and reporting.
Starts at
Free plan
Pune-built email and SMS marketing automation platform with a free tier of 20,000 emails.
Starts at
Free plan
Email and SMS marketing for ecommerce merchants, free up to 200 active subscribers.
Starts at
Free plan
Business communication platform for bulk SMS, cloud contact center and AI solutions.
Starts at
Free plan
Transactional email API and outbound filtering for platforms and hosting providers.
Starts at
Free plan
Web push, email and SMS marketing app for Shopify stores with abandoned-cart, back-in-stock and price-drop automation.
Starts at
Free plan
SMTP relay and email API for transactional and marketing email with queryable delivery logs.
Starts at
Free plan
European platform for sending transactional email and SMS for developers.
Starts at
Free plan
SMS marketing platform for Shopify brands with one-tap subscriber opt-in and automated campaigns
Starts at
Free plan
Before you buy
A permanently free tier with hard limits; a free trial that expires; a free plan for a single user that breaks the moment a second person joins; or open-source software that is free to licence but costs money to host and maintain. Establish which one you are being offered before you build a process on it.
Free tiers are limited by the thing you will run out of first — invoices per month, contacts, users, storage, or the one feature your workflow depends on. Find that number before you migrate data in, because migrating out later is the expensive part.
The cost of a free plan is switching cost. Before committing, export everything and look at what you get. If the export is a PDF rather than structured data, treat the product as harder to leave than it appears.
FAQs
24 products on App Advisor match. The most compared are Brevo, Klaviyo, Omnisend. 6 are built in India, which usually means GST, TDS and statutory updates ship as routine releases and support runs in your timezone. Every listing shows the vendor's own published pricing.
No. App Advisor is free for buyers and takes no payment for ranking. Products are ordered by how much buyers compare them and by our rating, never by what a vendor pays.
The list is generated from our live catalogue, so it changes as products, pricing and free plans change. Pricing shown is the vendor's own published figure — always confirm current terms directly before you buy.
Free shortlist
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