Marketing Titan SMS replaces Attentive, Postscript, and SimpleTexting. AI-written campaigns, automated sequences, two-way conversations — TCPA compliant, included in all plans.
AI Verdict: Marketing Titan SMS Marketing replaces Attentive, Postscript, and SimpleTexting with AI-written campaigns, two-way conversations — included from $199/month, TCPA compliant.
SMS Marketing summary: Replaces Attentive ($400+/mo), Postscript ($100+/mo), SimpleTexting ($29+/mo). AI-written SMS, behavioural sequences, two-way AI-handled conversations, opt-in/out management, TCPA compliance. Up to 50,000 SMS/month on Enterprise.
Attentive and Postscript charge $0.01+ per message and still make you write every text manually.
$400+/month for basic campaigns with no AI writing and no CRM integration.
Great for Shopify but limited to eComm. Not built for B2B or service businesses.
Replies land in your inbox manually. No AI to handle 'yes', 'no', or 'call me' responses at scale.
Darwin writes compliant SMS copy and handles opt-in management automatically.
Tell Darwin your goal — flash sale, reminder, re-engagement — it writes compliant copy under 160 chars.
AI segments contacts by purchase history, engagement, and custom attributes. Each gets personalised copy.
Messages send at optimal times. Darwin handles two-way replies. Opt-outs processed automatically.
Two-way SMS conversations at scale — Darwin qualifies replies, routes hot leads, manages opt-outs automatically.
"Our SMS list drives 23% of monthly revenue. The AI writes better texts than we ever did."
AI-enhanced SMS built into your platform — no Attentive, no Postscript.
Darwin writes compliant, brand-voice SMS under 160 characters — campaign-ready instantly.
Darwin handles replies — qualifying leads, answering FAQs, routing hot prospects.
SMS sequences trigger on purchases, abandoned carts, and engagement events.
Opt-in management, auto opt-out, quiet hours, do-not-call lists built in.
AI determines optimal send time per contact based on past engagement.
Connects SMS clicks to CRM deals and revenue.
Tell Darwin what you need — it writes, sends, and manages replies.
Darwin AI is included in all full-platform plans. Try Darwin standalone →
AI-native SMS included in your platform — no separate subscription.
| Capability | Attentive | Postscript | SimpleTexting | SMS Marketing |
|---|---|---|---|---|
| AI SMS copywriting | ✗ | ✗ | ✗ | ✓ Included |
| Two-way AI handling | Basic | Basic | Basic | ✓ Darwin |
| Behavioural sequences | ✓ | eComm only | Basic | ✓ Full |
| Built-in CRM | ✗ | ✗ | ✗ | ✓ Included |
| TCPA compliance | ✓ | ✓ | ✓ | ✓ Included |
| Monthly cost | $400+/mo | $100+/mo | $29+/mo | From $199/mo (full platform) |
Prices based on publicly available list pricing as of April 2026. See full comparison →
Yes — campaigns, flows, two-way messaging with AI handling and built-in CRM. TCPA compliant.
Yes — Starter to Enterprise. Sends from 10,000/month on Starter to 50,000/month on Enterprise.
Darwin handles replies — answering FAQs, qualifying leads, routing hot prospects to reps. You set the guardrails.
Yes — call time restrictions, opt-out processing, quiet hours (9pm–9am default), and message logging.
Yes — email + SMS combined in one sequence. A prospect can get email day 1, SMS day 3, voice day 5.
SMS = text up to 160 chars. MMS = images, GIFs, longer messages. Both available — Darwin chooses optimal format.
SMS included in all Marketing Titan plans. 21-day free trial.
Outreach tactics, AI sales strategies, and platform updates from the Marketing Titan team.
