Ready-Built Plugins, Priced by Scope
Each plugin below is a one-time development cost, not a subscription. The number you land on depends on how many channels, triggers, and forms are involved, which is why every price here is a starting point rather than a flat catalogue figure.
Excel SMS Plugin
A native Excel ribbon tab: Send SMS, Group SMS from a column of numbers, Sent Report, Check Balance, and Settings/Admin. Branded to your own API endpoint, so your clients see your name, not ours.
Google Sheets Connector Plugin
Send SMS, WhatsApp, Voice, or RCS when a new row is added, and log inbound replies back into the sheet, no Apps Script or Zapier. Resellers can white-label the Google OAuth consent screen with their own branding.
WooCommerce Plugin
Order, shipping, and abandoned cart alerts on SMS, WhatsApp, RCS, and voice. White-label for SMPP Center resellers, with DLT templates, shortcodes, and DLR on the order in wp-admin.
WordPress SMS & WhatsApp Plugin
Wraps SMPPCenter, or any other API that documents authentication and a send endpoint, directly into WordPress. OTP on login, checkout, or custom forms; DLT template and sender ID fields for India; you receive the plugin source.
Something Else Entirely?
If your platform is not listed, tell us what it needs to do and what the target system exposes. Most plugin work is priced the same way: by scope, not by a fixed catalogue price.
Prices in USD, exclusive of applicable taxes. All figures are starting points; final pricing is confirmed once we know your channels and trigger count.
Bug fixes are free. New features are not.
Once a plugin is delivered, anything that does not work the way it was scoped is a bug, and we fix it at no charge. A request for something the original scope never covered, a new channel, a new trigger, a new integration point, is an additional feature, and that is quoted and priced separately, the same way it would be for any other piece of software.
Tell us what the plugin needs to do
Platform, channels, and roughly how many triggers or forms are involved is enough for us to turn this into a real number.
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Plugin Pricing Questions
Also Looking at Integrations or Platform Apps?
See Integration PricingThe Fine Print, Up Front
Pricing Terms
Currency and tax
All prices are in US dollars and exclusive of applicable taxes, duties, and withholding. Indian rupee figures shown against channel volume pricing are indicative and convert at the prevailing rate on your invoice.
Billing and commitment
Subscriptions are billed monthly, quarterly, or annually in advance. Annual prepay includes two months free. Setup is a flat $100 one-time charge on every plan, billed with your first invoice, and waived entirely where you prepay quarterly or annually. Downgrades are not automatic, because your dedicated server and database are provisioned for the tier you buy. Talk to us before committing if your volume is likely to fluctuate.
Fair use, daily threshold and overage
We do not suspend, throttle to zero, or terminate your service for exceeding an allowance. Traffic above your daily threshold is queued and released in the next window, and no charge arises from daily queueing alone. Usage above your monthly allowance is billed as an overage charge in arrears on your next invoice, at the rate agreed with you and recorded in your order form. Overage rates are set against your expected volume and destination mix rather than published as a single figure, and are agreed before you sign, so no overage charge ever arrives at a rate you have not already seen. Overage is charged against the monthly allowance only, never the daily threshold.
How usage is counted
Channel volume on the WhatsApp, RCS, Telegram, and OBD Voice ladder is counted on delivered messages, not submitted. A message submitted but not delivered does not count toward your volume and is not billed. Published ladder rates apply to perpetual licence holders; on a rented subscription plan, channel rates are quoted separately and recorded in your order form. For other usage, the counting basis is stated in your order form and matches what your platform reports show. Our platform records are the primary evidence of usage, save in the case of manifest error.
Notifications and sustained overage
We alert you at 80% and 100% of your monthly allowance, so an overage charge is never the first you hear of it. If you exceed your monthly allowance in three consecutive months, we may ask you to move to the next plan from your following renewal, on thirty days' notice. Any overage accrued in your final month remains payable on termination.
Service levels
Where your plan carries an uptime SLA, it covers availability of the SMPPCenter application, measured monthly. It excludes scheduled maintenance notified at least 48 hours in advance, unavailability attributable to the underlying hosting provider, outages or throttling by any upstream carrier or vendor, failures of your own infrastructure, network, or credentials, and events outside our reasonable control. Where we provide hosting, the infrastructure service level is the hosting provider's own published SLA, named in your order form and passed through without enlargement.
Perpetual licences, upgrades and security
A perpetual licence grants a non-exclusive, non-transferable right to use the version delivered at purchase, in object code form only. No source code rights are granted. The annual upgrade charge (AUC) is mandatory for the first three years and covers version upgrades, feature releases, and security patches. Should AUC lapse thereafter, you retain the right to run the version you own but receive no further upgrades, releases, or security patches, and you would be asked to acknowledge in writing that continued use without security patches is at your own risk. Reinstating AUC is charged in respect of each lapsed year.
Servers and deployment
On a subscription plan we provide and maintain the server infrastructure. On a perpetual licence you provide and maintain it. Where a plan states a number of servers, that refers to servers across which a single deployment of the software is horizontally scaled. It is not a licence to run multiple independent deployments.
Support
Day-to-day support is ticket-based on every plan. Scale and Enterprise include 24/7 support. On every plan, including the entry tier, an emergency telephone line is available where the service is down, and we will restore it regardless of your support tier.
Price changes
Prices and inclusions on these pages may change. Where a change affects an active subscription, we will give you at least thirty days' written notice before it takes effect, and your current pricing holds until your next renewal date. Newer products, including AI and voice, are at an early stage of pricing and are the most likely to be revised as usage patterns become clear.
NCPR, DLT and regulatory data
Every plan includes the scrubbing and validation engine. The underlying NCPR, DND, and DLT data is supplied by you, obtained and maintained under your own registration with the relevant registry or operator, and loaded into the platform by you. SMPPCenter does not source, licence, or warrant the accuracy or currency of that data, and is not responsible for sends permitted or blocked as a result of data you have supplied. Real-time scrubbing against an external provider's API is supported as a chargeable addition. Responsibility for regulatory compliance of your traffic, and of your customers' traffic, remains yours.
Channel and third-party charges
WhatsApp conversation charges levied by Meta, RCS carrier charges, operator and vendor fees, and model inference billed by your own AI provider are separate from our platform fees and passed through. We will break them out separately in your quote.
This is a plain-language summary provided so you know what you are buying before you talk to us. It is not the contract. The binding terms are those in your signed agreement and order form. See also our Terms and Conditions and Privacy Policy. Prices and inclusions on this page are current at the time of publication and may change.
Client Feedback
What Our Clients Say
Our clients run regulated, high-volume messaging infrastructure and prefer not to be named publicly. These testimonials are shared with permission while keeping commercially sensitive details confidential.
The migration was completed smoothly and the platform has remained stable under heavy production traffic. The flexibility of self-hosting was one of the biggest advantages for us.
We needed complete control over our messaging infrastructure instead of relying on a hosted provider. The platform has delivered excellent performance and reliability.
API integration was straightforward and the support team assisted us throughout deployment. We now manage multiple operator connections from a single platform.
High throughput, intelligent routing, and detailed monitoring have significantly simplified our messaging operations.
Names and company details are withheld at our clients' request. This is common among telecom providers, SMS aggregators, fintech companies, and enterprises that consider their messaging infrastructure commercially sensitive.