Which companies offer the best birthday and anniversary campaigns?
Klaviyo or Omnisend are best for birthday and anniversary automations. Use Attentive or Postscript for SMS and Smile for loyalty rewards.
Choose Klaviyo or Omnisend for email-first birthday and anniversary automations; Postscript or Attentive when SMS is primary; Smile (Smile.io) when you want loyalty-rewarded birthday/anniversary offers. These fit different budgets and channel priorities: Klaviyo/Omnisend for multichannel email+SMS flows, Attentive/Postscript for SMS-first programs, Smile for points-and-reward approaches.
At a glance
| Option | Best for | Starting price (paid plan) | Free plan | Date-triggered automations | Source |
|---|---|---|---|---|---|
| Klaviyo | Email + SMS automation | $20/month | Yes | Yes | klaviyo.com/pricing |
| Omnisend | Ecommerce automation & SMS | Not confirmed, see source | Yes | Yes | omnisend.com/pricing |
| Attentive | Enterprise SMS-first programs | Quote only | No | Yes | attentive.com/pricing |
| Postscript | SMS automations for Shopify | Usage-based | Yes | Yes | g2.com/postscript/pricing |
| Smile (Smile.io) | Loyalty-based birthday rewards | $15/month | Yes | Partial | smile.io/pricing |
From the sourced table above, checked November 2026.
All prices and plan facts above were checked on vendor pages in November 2026. Where a vendor publishes no fixed monthly plan price we used the vendor’s published pricing model phrasing (Quote only or Usage-based).
Klaviyo: best when you want powerful email flows and segmentation
Klaviyo provides date-triggered flows (birthday/anniversary) that can send email, SMS or both and supports rich segmentation and profile date properties. Its pricing page shows a free tier and a paid Email plan starting at $20/month for small lists (prices checked November 2026). Klaviyo’s strength is deep customer data and many integrations; its weakness is that SMS is an add-on and total bill rises quickly with large contact lists. (klaviyo.com)
Omnisend: best when you want affordable multichannel automations
Omnisend offers a built-in Birthday Automation preset (email or email+SMS) and includes SMS pricing details (per-message rates) and paid plans beginning at $16/month for the Standard tier (checked November 2026). It bundles email, SMS and push in one interface, making it easy to run birthday + anniversary campaigns; limits on the Free tier and SMS add-ons mean you should check total message costs as you scale. (support.omnisend.com)
Attentive: best when SMS is the primary revenue channel (enterprise)
Attentive documents date-triggered journeys tailored for birthdays and anniversaries and focuses on SMS/RCS with enterprise support and deliverability services. Attentive’s site presents pricing as custom / based on list size and message volume (no simple published starter monthly price), so purchase typically requires a demo and sales conversation. It excels for high-volume SMS programs but is less appropriate for very small stores because of minimum spend and enterprise orientation. (help.attentive.com)
Postscript: best when you want SMS-first automations for Shopify merchants
Postscript’s documentation shows a birthday automation flow and guidance for capturing birthdates in popups; it’s focused on SMS automations and Shopify shop data. Pricing is usage-oriented (platform tiers and per-message fees vary; sources show starter tiers with minimum monthly spend or growth plans rather than a single low fixed monthly price), so treat costs as message-and-volume driven. Postscript is strong for SMS engagement on Shopify stores but adds per-message cost complexity. (help.postscript.io)
Smile (Smile.io): best when you want loyalty points & birthday rewards
Smile is a loyalty platform that supports birthday point grants and anniversary/bonus reward events; its pricing page lists a Free tier and paid plans from $15/month (Essential) up to enterprise tiers (checked November 2026). Smile’s focus is points, VIP tiers and reward redemption; it usually relies on an email provider (often Klaviyo) to send transactional or email campaign messages, so your birthday reward may require pairing Smile with an ESP for the actual email send. Use Smile when you want to give points or free-product rewards on birthdays rather than only sending discount emails. (smile.io)
How do these providers compare on features and pricing?
Klaviyo and Omnisend give the broadest set of built-in date-triggered email + SMS automation features at entry prices ($20/mo and $16/mo respectively for small lists as of November 2026). Klaviyo emphasizes data, segmentation and CDP features; Omnisend packages email, SMS and web push with generally lower entry pricing and SMS per-message tiers. Attentive and Postscript are SMS-first and price primarily by volume or custom quote, so they can be more expensive but deliver SMS deliverability, regulatory tools and enterprise support. Smile prices loyalty programs (from $15/mo) and focuses on rewards rather than being an ESP, so you’ll likely use it alongside an email/SMS vendor. (klaviyo.com)
Which providers integrate with Shopify, email, and SMS platforms?
Short answer: all five integrate with Shopify; Klaviyo and Omnisend are native email+SMS platforms; Attentive and Postscript are SMS-first (both integrate with email tools or offer email add-ons); Smile integrates with Shopify and with Klaviyo for email sends. Each vendor lists Shopify among supported integrations on their pages (Klaviyo/Omnisend/Smile explicitly; Postscript and Attentive document Shopify/shop hooks and date-trigger examples). If you need a single app to handle both sending and automation, Klaviyo or Omnisend are the simplest; if SMS deliverability and two-way texting matter most, Attentive or Postscript are built for that; if loyalty points must power birthday rewards, add Smile and pair it with your ESP. (klaviyo.com)
Which vendors suit small stores versus large brands?
For small stores: Smile’s Free or $15 Essential plan and Omnisend’s Standard from $16/month are budget-friendly and quick to start; Klaviyo’s free tier is also a solid entry if you want stronger segmentation. For mid-market: Klaviyo or Omnisend scale well and add personalization as lists grow. For larger brands: Attentive and Postscript (enterprise SMS programs and SLAs) or Smile Plus/Enterprise are tailored to larger volume and advanced support; Klaviyo Enterprise/custom is appropriate if you need CDP and cross-brand data at scale. Always model expected sends and subscriber counts: vendors with per-message SMS charges or contact-based pricing can become costly at scale. (smile.io)
Which should you choose?
| Your situation | Best fit |
|---|---|
| You want email + advanced segmentation for birthday flows | Klaviyo |
| You want the cheapest straightforward ecommerce bundle | Omnisend |
| SMS-first, high deliverability and enterprise support | Attentive |
| SMS automation for Shopify stores with flexible usage pricing | Postscript |
| You want birthday rewards or points-based gifts | Smile (Smile.io) |
From the table above.
How this comparison was made
I used each vendor’s published product and pricing pages and product docs (checked November 2026) to extract features and plan prices; vendor help pages were used to confirm date-trigger and birthday/anniversary capabilities. The products were not tested hands-on; numbers and feature availability are reported from the vendors’ public pages and reputable third-party pricing references cited above. (klaviyo.com)
