SMS Marketing Pricing: How Much Does SMS Software Cost in 2026?

How much does SMS marketing software cost?

The cost of SMS marketing software typically combines platform fees, per-message charges, and carrier fees. The exact cost depends on the provider, the number of messages you send, your subscriber list size, the type of messages you send, where you are sending to, and the features included in your plan.

For ecommerce brands, the most common pricing models are:

1. Usage-based pricing: Pay based on the messages you send.

2. Pre-paid pricing: Pre-purchase a number of credits or dollars each month and each send draws from the credit bank.

3. Subscriber-based pricing: Pay based on the size of your SMS subscriber list.

4. Platform + usage pricing: Pay a monthly software fee plus messaging costs.

5. Custom enterprise pricing: Negotiate pricing based on volume

In 2026, usage-based pricing has become increasingly common. For example, Postscript offers plans with a monthly platform fee and separate usage charges, compared with Attentive which bases pricing on factors including message volume, subscriber list size, channels, and AI products, or Klaviyo which forces customers to pre-pay for their SMS sends.  

When comparing SMS platforms, don't look only at the advertised monthly subscription.

Your total SMS cost can include several components:

A platform fee covers the software used to build and manage your SMS program.

Depending on the provider and plan, this can include:

• SMS campaigns

• Automated flows

• Segmentation

• Reporting and analytics

• Subscriber acquisition tools

• Integrations

• Customer support

• APIs

• Advanced personalization

Some platforms have no platform fee on entry-level plans, while others charge a monthly subscription.

For example, Postscript's current Starter plan has a $0/month platform fee but a $49 monthly minimum spend after the free trial. Its Growth plan is $100/month and Professional is $500/month.

Messaging fees are typically based on the number and type of messages you send.

SMS, MMS, and RCS all have different rates because MMS and Rich RCS support content such as images and GIFs.

Postscript, for example, currently lists US rates of $0.009 per SMS and $0.045 per MMS on its Starter plan, with lower rates on higher-tier plans.

Mobile carriers can charge fees for messages traveling across their networks.

These fees can vary based on:

• Carrier (e.g., Verizon, AT&T, T-Mobile, Bell, etc.)

• Country

• Message type (MMS, RCS, SMS)

• Sending number (toll-free number, short code)

• Other carrier-specific factors

Some SMS providers, like Klaviyo, bundle carrier fees in their advertised pricing, while others pass them through as a separate line item to make billing more transparent.

Postscript separates carrier fees from messaging fees and says it passes carrier fees through without additional markup.

Brands may also have costs associated with their SMS sending number.

For example, Postscript provides a dedicated toll-free number at no additional cost. Brands can choose to lease short codes for a monthly fee. Carriers determine this monthly fee.

Brands may choose service or feature Add-Ons that increase monthly costs. For example, Postscript offers three support packages via Postscript Plus where a brand works with a dedicated strategist on and planning and executing their SMS program.

With usage-based pricing, you pay according to how much SMS you actually use.

The basic formula is:

Monthly SMS cost = platform fee + messaging fees + carrier fees

For example, if a brand sends 100,000 SMS messages at an effective messaging rate of $0.008 per message:

100,000 × $0.008 = $800 in messaging fees

Carrier fees and any applicable platform fees would be added separately.

Usage-based pricing is particularly useful for ecommerce brands because SMS volume can fluctuate dramatically throughout the year.

A brand might send significantly more messages during:

• Black Friday

• Cyber Monday

• Holiday shopping

• Product launches

• Seasonal promotions

• Flash sales

A usage-based model lets the brand increase or decrease its SMS activity without necessarily having to purchase a new block of credits.

Postscript specifically designed its usage-based model to allow merchants to adjust their SMS strategy throughout the year without having to upgrade or downgrade based on messaging credits.

Many ecommerce SMS platforms combine the a platform fee with usage.

You pay:

Monthly platform fee + SMS/MMS usage

This allows the software provider to monetize the technology while still allowing messaging costs to scale with usage.

Postscript currently uses this structure on its Growth and Professional plans.

This can be a useful middle ground because brands aren't paying entirely based on subscriber count, but they also aren't expecting the software platform itself to be free.

Enterprise brands often receive custom pricing rather than a publicly listed rate.

Enterprise pricing may take into account:

• Monthly message volume

• Subscriber count

• Number of countries

• SMS, MMS and RCS usage

• Email usage

• Push notifications

• AI products

• Support requirements

• Services (such as strategy or support)

• Contract length

• Multiple brands or storefronts

Attentive, for example, says its pricing is tailored based on message volume, subscriber list size, number of channels and AI products selected.

Enterprise pricing can therefore be difficult to compare directly against self-service SMS platforms.

There isn't one standard SMS marketing cost because the biggest variable is how many messages you send.

Consider a simplified example:

These are illustrative messaging costs only. Actual costs depend on the provider, message type, carrier fees, country, segmentation, and other factors.

The important point is that the cost of SMS software should be evaluated against the revenue generated by the channel, rather than simply looking for the lowest price per message.

SMS is generally more directly tied to message volume whereas email pricing can depend on a number of things.

Email platforms commonly price based on:

• Contacts

• Emails sent

• Features

• Platform tier

SMS adds additional telecommunications costs because messages travel through mobile carrier networks. Mobile carriers charge to use their “pipes”. Carrier fees are the same cost no matter what SMS provider you are using as these are fees levied by telecommunication companies such as Verizon, AT&T, and TMobile.

That means an SMS bill can include:

Software + messaging + carrier costs

This is one reason comparing an SMS platform's monthly subscription price alone can be misleading.

A $50/month platform isn't necessarily cheaper than a $100/month platform if the first provider charges substantially more for every message.

The cheapest SMS marketing platform isn't necessarily the provider with the lowest advertised monthly price.

To compare SMS platforms accurately, calculate the total cost of your expected messaging volume.

Use:

Total SMS cost = platform fees + messaging fees + carrier fees + recurring or add-on fees

Then divide that number by your expected number of messages:

Effective cost per message = total SMS cost ÷ messages sent

This gives you a much more useful number for comparing providers.

Before choosing an SMS platform, ask these questions:

If pricing is subscriber-based, understand whether you're paying for contacts even when you don't message them.

If you are pre-paying for SMS sends you are potentially giving your provider money 30-60 days earlier than needed than if your sms provider uses usage based pricing. 

MMS generally costs more than standard SMS. However different SMS providers charge for MMS differently, so make sure you understand what is considered an MMS message and how it is charged. 

A provider's advertised rate may not represent the complete cost of sending a message. If they are included, you may ask the provider if the fees are bundled into messaging rates or their own line item. Transparent billing is especially helpful for budgeting.

A long SMS can be split into multiple message segments. For example, Postscript explains that messages over 160 characters without emojis or 70 characters with emojis can be split into multiple SMS segments, with each segment charged at the applicable rate.

It depends on the platform and carrier, but generally: messages that fail before hitting the carrier (invalid number, opt-out, etc.) usually aren't charged, while messages accepted by the carrier and then fail downstream (undelivered due to network issues) often are still charged since the platform already paid the carrier fee. Check your specific provider's billing policy for the exact cutoff.

Inbound messaging can matter for brands that use SMS for two-way conversations.

Postscript's current 2026 billing documentation says inbound messages are now subject to its standard or negotiated message charge.

SMS, MMS, and RCS are generally priced separately, with SMS cheapest, MMS pricier due to media fees, and RCS billed at its own distinct rate. Exact rates vary by platform and carrier.

For most ecommerce brands, usage-based SMS pricing provides the clearest relationship between what you're paying and how much you're using the platform.

That's particularly true for brands with seasonal messaging volume.

However, the best pricing model depends on your business.

The most important thing is to compare total program cost, not just the monthly subscription.

Postscript has moved to a very explicit transparent, usage-based model. The company says merchants are charged based on what they actually send, with visibility into usage by day, carrier, country and message type.

Current US pricing starts at:

• Starter: $0 platform fee, $49 monthly minimum after the trial

• Growth: $100/month

• Professional: $500/month

• Messaging is charged per SMS/MMS, with rates decreasing at higher tiers

• Carrier fees are included as a separate line item for transparency

Where Postscript's model is advantageous:

The biggest advantage is transparency.

A brand can essentially calculate:

Platform fee + messages sent × message rate + carrier fees

That's particularly attractive for ecommerce brands with seasonal SMS volume or a tight budget where they need transparency for predictability. A brand doesn't necessarily have to pay for a huge subscriber base during months when it isn't sending much.

Postscript uses a usage-based pricing model designed around the amount of messaging a merchant actually uses.

Its current plans include Starter, Growth, Professional and Enterprise. Starter has no platform fee but a $49 monthly minimum after the trial; Growth is $100/month; Professional is $500/month; and Enterprise is custom. SMS and MMS are charged separately based on usage, with carrier fees listed separately.

The model gives merchants visibility into messaging costs by factors such as day, carrier, country, message type and messaging source.

For ecommerce brands, that makes it possible to evaluate SMS costs at the campaign and program level instead of simply looking at a flat monthly software price.

SMS marketing can be relatively inexpensive on a per-message basis, but total cost depends primarily on message volume, platform fees, carrier fees and message type. The right benchmark is the revenue generated relative to total SMS costs.

The cost depends on the provider and applicable rate. At a hypothetical $0.01 per SMS, 1,000 messages would cost $10 in messaging fees before platform and carrier fees.

Some do. Others primarily charge based on messages sent. Many platforms combine subscriber count, message volume and platform features when determining pricing.

Usually. MMS supports richer content and is generally priced higher than standard SMS.

It depends on the provider. Some providers bundle carrier costs into their rates, while others list them separately. Always check whether the advertised SMS price includes carrier fees.

It can be, particularly for ecommerce brands with seasonal or variable SMS volume. Usage-based pricing ties your messaging costs more directly to how much you send.

Usually yes, because when you pre-pay you are paying 30-60 days earlier than you may need to with a provider who offers usage based pricing. 

Look at the total cost of ownership, including platform fees, SMS/MMS rates, carrier fees, subscriber acquisition tools, automation, segmentation, analytics, integrations, support and compliance features.