Postscript Alternatives: 7 Options Compared, Plus the Channel Most B2B Teams Miss
Quick verdict
Blue Reacher is the Postscript alternative for a B2B team rather than a store: blue-bubble iMessage from your CRM at a published $249 per line per month, unlimited messages with no per-message billing, and no A2P registration required. Lines pace at 50 opted-in / 30 cold new contacts a day to stay deliverable; replies are never metered. The rest of the field splits into three groups. Klaviyo, Attentive, Emotive and Braze compete in consumer lifecycle and retention messaging. Twilio sells the raw pipes. Salesmsg covers two-way business texting from a CRM. Postscript itself is the Shopify SMS specialist, so teams leave it for one of two reasons: they are not really a Shopify-shaped business, or they discovered that carrier SMS itself is the constraint. Every price below carries the date it was checked.
Key takeaways
- Postscript's rates (9 Aug 2026): Starter $0 with $49 minimum at $0.009/SMS and $0.045/MMS; Growth $100 at $0.008/$0.03; Pro $500 at $0.007/$0.024; Enterprise custom.
- Klaviyo bundles email and SMS: free to 250 profiles, 500 email sends/mo, $5 mobile/mo, then paid tiers.
- Twilio: $0.0083/SMS segment, $1.15/mo long code, carrier surcharges $0.0035-0.005/segment, A2P registration required.
- Ecommerce SMS platforms prohibit purchased lists and require opt-in docs, so B2B teams have no supported motion.
- Blue Reacher sends blue-bubble texts from your CRM at $249/line/mo or $1,949/yr (about $162.50/mo), unlimited iMessages paced at 50 opted-in / 30 cold new contacts a day, no per-message fees, no A2P registration required.
Reply rate by outbound channel
Why do teams leave Postscript?
Postscript's rates (9 Aug 2026): Starter $0 with $49 minimum at $0.009/SMS and $0.045/MMS; Growth $100 at $0.008/$0.03; Pro $500 at $0.007/$0.024; Enterprise custom. Carrier fees average $0.00418/SMS, $0.00841/MMS.
- A 50,000-send month costs $709 ($100 plan, $400 messages, $209 carrier fees), or $8,508 yearly. MMS-heavy brands watch $0.03 per message dominate the bill.
- Postscript positions for Shopify brands; its tooling assumes a store. A B2B team or agency without carts is holding the wrong tool.
Which competitors work head-on?
Klaviyo bundles email and SMS: free to 250 profiles, 500 email sends/mo, $5 mobile/mo, then paid tiers. SMS credits bundle carrier fees, so forecasting beats Postscript's pass-through model.
- Attentive: enterprise, $40k/yr median (Vendr, Jul 2026), quote-only. Emotive: $100/mo base plus $0.015 SMS/$0.025 MMS. Braze: enterprise cross-channel, quote-only. None list iMessage.
Reading how it works is not the same as watching it answer one of your own leads. The Blue Funnel Map does the second one.
See it on your own listInfrastructure or two-way sales texting?
Twilio: $0.0083/SMS segment, $1.15/mo long code, carrier surcharges $0.0035-0.005/segment, A2P registration required. No campaign builder, no subscriber management, suits developers.
- Salesmsg: $25-249/mo by credits, unlimited contacts, calling, native to HubSpot, Salesforce, Pipedrive, Close, Outreach, Zapier, Make, n8n. Best SMS correction for B2B teams.
Why SMS fails for B2B cold outreach
Ecommerce SMS platforms prohibit purchased lists and require opt-in docs, so B2B teams have no supported motion. A2P 10DLC costs $4.50 brand registration, $41.50 vetting (Campaign Registry, 19 Jan 2026), $10/mo per campaign with 3-month minimum, plus per-segment surcharges all carriers raised in H1 2026.
- Messages survive as green bubbles on iPhones, which 75% of Q1 2026 US buyers carried (Counterpoint). Green from unknown numbers gets ignored.
What Blue Reacher is and isn't
What Blue Reacher is and isn't
Blue Reacher sends blue-bubble texts from your CRM at $249/line/mo or $1,949/yr (about $162.50/mo), unlimited iMessages paced at 50 opted-in / 30 cold new contacts a day, no per-message fees, no A2P registration required. Setup is white-glove with $449 activation waived on annual billing. Native to GoHighLevel, HubSpot, Close, Salesforce, Pipedrive, Follow Up Boss; Zapier, Make, n8n and REST API for others.
- Blue Reacher loses to Postscript on Shopify: a store gets checkout integration, cart attribution, and $49 minimum. Per message sent, Postscript is far cheaper.
- For B2B, the comparison inverts: $249 is printed not estimated, unlimited not metered, no A2P registration, whole funnel not cart only.
Blue Reacher
- Entry price (date checked)
- $249/line/mo (Aug 2026)
- Per-message
- No per-message fees, unlimited iMessages (50 opted-in / 30 cold new contacts a day)
- Built for
- B2B iMessage across the funnel
Postscript
- Entry price (date checked)
- $0/mo with $49 minimum (9 Aug 2026)
- Per-message
- $0.009 SMS, $0.045 MMS, plus carrier fees
- Built for
- Shopify SMS
Klaviyo
- Entry price (date checked)
- Free to 250 profiles (9 Aug 2026)
- Per-message
- Credit-based, carrier fees bundled
- Built for
- Ecommerce email plus SMS
Attentive
- Entry price (date checked)
- Not published, demo required (Jul 2026)
- Per-message
- Not published
- Built for
- Enterprise consumer retention
Emotive
- Entry price (date checked)
- $100/mo (Jul 2026)
- Per-message
- $0.015 SMS, $0.025 MMS
- Built for
- Ecommerce SMS with managed strategy
Braze
- Entry price (date checked)
- Quote only (Jul 2026)
- Per-message
- Not published
- Built for
- Enterprise cross-channel
Twilio
- Entry price (date checked)
- $1.15/mo per long code (Jul 2026)
- Per-message
- $0.0083 per SMS plus carrier fees
- Built for
- Developers building their own
Salesmsg
- Entry price (date checked)
- $25/mo, 500 credits (Jul 2026)
- Per-message
- Extra credits 3.1 to 4.0 cents
- Built for
- CRM-connected two-way texting
Frequently asked questions
How much does Postscript cost?
Rates (9 Aug 2026): Starter $0 with $49 minimum at $0.009/SMS and $0.045/MMS, Growth $100 at $0.008/$0.03, Pro $500 at $0.007/$0.024, Enterprise custom. Carrier fees ~$0.004/SMS, $0.008/MMS. New accounts get $100 credit.
What is the best Postscript alternative for Shopify brands?
Klaviyo bundles email and SMS: free to 250 profiles with $5 mobile/mo, then paid tiers. Attentive and Braze quote-only at enterprise. Emotive from $100/mo with managed strategy. Postscript's rate card is most checkable.
Can I use Postscript without Shopify?
Partially. Postscript positions itself for Shopify brands and its native tooling assumes a store, but it documents an SDK path for headless merchants. A business that is not an online store gets little from that route, because subscriber growth and attribution are built around store events.
Does Postscript support iMessage?
No. Postscript meters SMS and MMS on carrier routes; iMessage isn't listed. Messages render green. Sending blue requires Apple's iMessage network, a different product category from SMS marketing.
Do Postscript alternatives require A2P 10DLC registration?
Yes, every SMS platform requires A2P 10DLC: $4.50 brand registration, $41.50 vetting (Campaign Registry, 19 Jan 2026), $10/mo per campaign, plus per-segment surcharges. Blue Reacher requires none; iMessage isn't carrier SMS.
What is the best Postscript alternative for B2B teams?
Blue Reacher: $249/mo, unlimited iMessages, no per-message billing, no A2P registration, white-glove setup. 50 opted-in / 30 cold new contacts/day pacing. Salesmsg if staying on SMS: $25/mo with HubSpot, Salesforce, Pipedrive, Close, Outreach native, but keeps A2P and green bubbles.
See what a blue bubble does to your reply rate
If your buyers are businesses rather than shoppers, cart-recovery SMS is the wrong tool no matter how clean the rate card. Blue Reacher sends real iMessages from your CRM across the whole funnel at $249 per line per month, unlimited, with no per-message fees and no A2P registration required. Book a demo and see live B2B reply rates before you commit.