Because you should pay for messages, not for the platform. No monthly fee on any channel, free DLT support, reports that say why a message failed, and one API for SMS, WhatsApp, RCS, OTP and Voice. Below, each channel compared with what many providers offer.
Not features on a slide. These are the things customers tell us they were missing at their previous provider.
Fast2SMS is prepaid. Recharge from ₹100 and pay per message or per answered call. There is no setup charge, no platform rental and no minimum commitment on SMS, WhatsApp, RCS, OTP or Voice.
DLT registration, sender ID headers, template wording, WhatsApp business verification and RCS brand approval are where most new senders get stuck. Our team does this with you, on chat or on a call, at no charge.
Every message shows sent, delivered or failed with the time and operator, and a failed message shows the reason: DND, invalid number, switched off, template mismatch. The same data reaches your server over webhooks.
Bulk SMS, WhatsApp Business API, RCS, OTP with fallback, campaign flows and Voice calls share one wallet, one contact book and one API key. Add a channel without a new vendor or a new contract.
Based on publicly listed plans of common Indian providers at the time of writing; details vary by vendor. Each table links to the full product page.
DLT bulk SMS from your own sender ID. The gap between providers is rarely the SMS itself; it is the registration help, the honesty of the report and what happens when you need a person.
| What you get | Fast2SMS | Many SMS providers |
|---|---|---|
| Monthly or setup fee | None, prepaid from ₹100 | Often a plan or minimum purchase |
| DLT registration support | Free, with template review | Paid or "do it yourself" |
| Failure reason on every failed SMS | Yes | Usually only a status |
| Per-SMS rate on volume | From ₹0.11 | Varies, often hidden behind a quote |
| Panel and API at the same price | Yes | API sometimes costs more |
| Delivery webhooks | Real time, all channels | Sometimes, or on higher plans |
| Free test credit | ₹50 after signup | Rarely |
| Support channels | Chat, phone, email, meeting | Ticket only |
Most providers resell the same official Meta API. What differs is what they charge on top of Meta's per-conversation price, and what they lock behind a plan.
| What you get | Fast2SMS | Many WhatsApp API providers |
|---|---|---|
| Monthly platform or panel cost | None | Usually ₹1,000–₹5,000 per month |
| Setup or onboarding charge | None, onboarding is free | Often charged |
| Live chat inbox | Free, unlimited agents | Per-agent pricing or a higher plan |
| Android agent app | Yes | Rare |
| Chatbot and flow builder | Free | Add-on or higher plan |
| Bulk campaigns from the panel | Yes | Yes |
| API access | Free | Sometimes a developer plan |
| Failed messages | Auto refunded within 48 h | Varies |
RCS puts your brand name, logo, images and buttons in the native messaging app on Android. It is still new enough that many providers charge for the privilege of getting started.
| What you get | Fast2SMS | Many RCS providers |
|---|---|---|
| Setup or monthly cost | None | Often a setup fee |
| Brand and agent verification help | Free | Varies |
| Rich cards, carousels, buttons | Yes | Yes |
| Per-message price | ₹0.35 | Varies, often by quote |
| Failed messages | Auto refunded within 48 h | Varies |
| Same API key as SMS and WhatsApp | Yes | Separate product |
| Delivery and read webhooks | Yes | Sometimes |
An OTP is only useful if it arrives in a few seconds, every time. Beyond speed, the question is what happens when a number cannot receive SMS, and what you pay for the retry.
| What you get | Fast2SMS | Many OTP providers |
|---|---|---|
| Typical delivery time | 1–2 seconds | Varies by route |
| SMS to WhatsApp fallback | Automatic, per-channel pricing | Rare |
| WhatsApp to SMS fallback | Yes | Rare |
| Dedicated OTP route | Yes | Sometimes shared with promo |
| Per-OTP price | Same as your SMS rate | Often a premium |
| Free DLT template help for OTP | Yes | Paid or none |
| Delivery webhooks with reason | Yes | Status only |
Bulk Voice calls, Key Press, Call Patch and cloud numbers with IVR. The one number that matters most: are you paying for calls nobody picked up?
| What you get | Fast2SMS | Many Voice providers |
|---|---|---|
| Charged for unanswered calls | Only answered calls are charged | Often charged per attempt |
| Missed, busy or DND calls | Not charged, auto refunded within 48 h | Varies |
| Billing pulse | ₹0.25 per 15 seconds | 30 or 60-second pulse |
| IVR flow builder | Free | Monthly add-on |
| Agents and call groups | Free | Per-agent pricing |
| Cloud number | Per number per month | Number plus platform fee |
| Real-time answered / missed report | Yes | Delayed or summary only |
The same account type and the same published rates, whether you send a hundred messages a month or a few million.
Your customers' numbers and messages are business data. We treat them that way: encrypted on the wire and in the database, visible only to the people you allow, on infrastructure that is audited every year.
See our certificates
Stuck on DLT, a rejected template, WhatsApp verification or an API error? Ask in the panel chat, call us, or write in. For anything bigger, book a call and we will set your account up with you.
Fast2SMS has no monthly fee or setup cost on any channel, gives free DLT registration support, shows the failure reason on every failed message, charges the same rate for the panel and the API, and offers chat, phone and email support. Bulk SMS, WhatsApp Business API, RCS, OTP, campaign flows and Voice calls run from one account and one API key.
No. Fast2SMS is prepaid. You recharge from ₹100 whenever you need to and pay per SMS, per WhatsApp conversation, per RCS message or per answered Voice call. There is no platform rental, no agent licence and no contract.
The default rate is ₹0.25 per SMS and it falls with the size of your recharge, down to ₹0.11 per SMS. Promotional, transactional, service, OTP and API SMS cost the same. The full slab table is on the bulk SMS pricing page.
Yes, and it is free. The team helps you register your entity, sender ID headers and content templates on the operator DLT portal, reviews your template wording before you submit it, and syncs approved IDs and templates into your panel.
There is no setup charge and no monthly panel cost. You pay per message sent at Meta's category rates (utility and authentication ₹0.25, marketing ₹0.95, service ₹0.13 in India), and failed messages are refunded automatically within 48 hours. The live chat inbox, agents, Android agent app, chatbot, flow builder and API are free.
The underlying API is the same official Meta API. Providers that charge ₹1,000 to ₹5,000 per month usually bundle an inbox, agents or a flow builder into that plan. Fast2SMS includes those for free and charges only for the messages you send, so a small team pays only for its traffic.
RCS in India costs ₹0.35 per message at Fast2SMS, with no setup or monthly cost. Brand and agent verification help is free, and failed RCS messages are refunded automatically within 48 hours.
Besides the status, every failed message shows the reason: DND, invalid number, handset switched off, operator rejection or template mismatch. You can act on that list, for example by moving failed SMS numbers to a WhatsApp follow-up in a campaign flow. Reports are per campaign and per number, exportable to Excel, and the same events arrive at your server over webhooks.
OTPs typically arrive in 1 to 2 seconds over a dedicated route. Fast2SMS Smart OTP can fall back from SMS to WhatsApp, or from WhatsApp to SMS, automatically when the first channel is not delivered, and you pay the normal rate of whichever channel was used.
Bulk Voice calls are billed at ₹0.25 per 15-second pulse, only for calls that are answered. Missed, busy, switched-off and DND numbers are not charged; any such charge is refunded to your wallet automatically within 48 hours. The IVR builder and agent creation are free; cloud numbers are billed per number per month.
Yes. One account and one API key cover every channel. The REST API is documented at docs.fast2sms.com, and ready-made integrations exist for Shopify, WooCommerce, Zapier, Pabbly, Tally and many CRMs. Integrations are free; you pay only the per-message channel rate.
A campaign flow sends a message on one channel and then, based on the result, follows up on another: for example SMS first, WhatsApp after ten minutes if the SMS failed, and a Voice call an hour later if there is still no delivery. You build it in the flow builder with delays between steps and get one report for the whole journey.
Fast2SMS is ISO/IEC 27001:2022 and SOC 2 Type 2 certified, VAPT tested by an external team and MSME registered. Data is encrypted in transit and at rest, and access is controlled with per-user API keys, IP allow-listing, OTP on login and agent permissions. Certificates can be downloaded from the certificates page.
Live chat inside the panel, phone support on +91 6262778822, email at [email protected], and a scheduled meeting for onboarding, DLT help or volume pricing. Support is included for every account, including free ones.
Fast2SMS (SID Groups Private Limited) was established in Bhopal on 21 July 2011 and has 5.65M+ registered users who have sent 457B+ messages. Customers include Reliance Smart, Daawat Foods, Indian Oil, the Madhya Pradesh government, IIT Bombay, MPOnline and Kendriya Vidyalaya, alongside thousands of small businesses.
Create a free account with your mobile number and use the ₹50 credit to test. For SMS, complete DLT with our help; for WhatsApp, connect your business number; for RCS, submit your brand. Then recharge from ₹100 and send from the panel or the API.
₹50 free credit after signup. Pay as you go from ₹100, no monthly fee on any channel.
