SMS reminders are the single most well-documented tool for reducing no-shows — research reviewed elsewhere on this site shows text reminders reducing missed appointments by roughly a third to 40% across multiple studies. Yet almost every scheduling tool gates this specific feature behind a paid tier, even ones with otherwise generous free plans. Here’s exactly which tools include SMS reminders, at what price, based on the pricing we’ve verified across every comparison on this site.
Why SMS Reminders Specifically Matter
Email reminders are the default free-tier feature almost everywhere, but the research consistently shows text messages outperform email — they’re read faster (a commonly cited figure puts 80% of SMS read within 5 minutes) and more reliably than email, which can sit unread in a crowded inbox. For any appointment-based business where a no-show has a real cost — and as covered elsewhere on this site, that’s nearly all of them — SMS capability is worth treating as a near-essential feature rather than a nice-to-have upgrade.
SMS Reminder Availability, Tool by Tool
| Software | SMS Included On | Price to Unlock It |
|---|---|---|
| GlossGenius | Standard plan (entry tier) | $24/mo (annual) — included from the start |
| Setmore | Pro plan | $5/mo per user (annual) — not on free plan |
| Acuity Scheduling | Growing plan | $27/mo (annual) — not on entry Emerging tier |
| Vagaro | Included in base subscription | $24-30/mo per calendar |
| Fresha | Included, with per-message limits on lower usage | From $14.95/mo per team member |
| Square Appointments | Premium plan only | $149/mo per location |
| Calendly | Not available on any plan | N/A |
| Bookedin | Plus plan | $24/mo |
The Tool That Includes SMS From the Cheapest Entry Point
Among tools compared on this site, GlossGenius includes SMS reminders in its base Standard plan ($24/month annual) without requiring a separate upgrade — most competitors gate this behind a mid-tier or higher plan even when their entry-level pricing looks cheaper on paper. Setmore’s Pro plan ($5/user/month annual) is the cheapest per-seat way to add SMS if you’re starting from its free tier, though that’s an upgrade from $0 rather than an included feature from the start.
The Notable Gap: Calendly
Calendly doesn’t offer SMS reminders on any plan, including its highest tiers. For a business specifically prioritizing no-show reduction, this is a real limitation — email-only reminders are measurably less effective, based on the research covered in our no-show reduction guide. Calendly remains a strong tool for its core use case (fast, simple meeting booking), but if SMS capability is a priority, it’s worth weighing that gap against Calendly’s other strengths like time zone handling.
Square Appointments’ Steep SMS Requirement
Worth flagging specifically: Square Appointments only includes SMS reminders on its Premium plan at $149/month per location — a significant jump from its Free and Plus tiers, and notably more expensive than every other tool’s SMS-inclusive tier on this list. A business specifically prioritizing SMS reminders on a budget likely has cheaper options elsewhere, even if Square’s payment ecosystem is otherwise appealing.
Per-Message Limits and Overage Costs
“Included” SMS reminders don’t always mean unlimited. Several tools cap the number of messages included in a plan and charge per-message beyond that limit — Setmore’s plans, for example, include a set number of reminders with additional messages billed separately at higher volume. For a business sending multiple reminder touchpoints per appointment (a 48-hour reminder plus a same-day confirmation, as recommended in our no-show reduction guide), it’s worth checking the specific message allowance on a plan rather than assuming “SMS included” means unlimited texting at any volume.
International SMS Limitations
Worth flagging for any business with international clients: SMS delivery reliability and cost vary significantly by country, and not every scheduling tool supports reliable international texting at the same rate as domestic US delivery. If a meaningful share of bookings come from clients outside the US, it’s worth testing a tool’s SMS delivery to those specific regions before relying on it, rather than assuming a “SMS included” feature works identically everywhere.
SMS Delivery Reliability and International Limitations
Worth knowing before relying entirely on SMS: delivery isn’t universal or guaranteed. A client with text notifications disabled on their end won’t receive a reminder regardless of how well-configured the software is — a limitation that shows up repeatedly in user reviews across multiple tools compared on this site, not a flaw specific to any one platform. International SMS coverage also varies by tool and by country; a few platforms (Acuity among them) publish specific lists of supported countries for SMS delivery, worth checking directly if your client base isn’t entirely US-based. None of this makes SMS reminders not worth using — the research above still shows a clear net benefit — but it’s not a 100% guarantee, and pairing SMS with an email reminder as backup captures the clients SMS alone would miss.
Frequently Asked Questions
Which tool includes SMS reminders at the lowest total price?
GlossGenius, since SMS is included in its $24/month entry tier rather than requiring a separate upgrade — most competitors’ cheapest SMS-inclusive tier costs more once you account for the base subscription plus the upgrade needed to unlock texting.
Is there any tool with SMS reminders on a genuinely free plan?
No — every tool compared on this site that offers SMS at all requires a paid tier. None include it on a free plan.
Why doesn’t Calendly offer SMS reminders?
Calendly’s product focus has historically been on meeting scheduling rather than appointment-based service businesses, where SMS reminders matter more. It’s a real gap for businesses where no-show reduction is a priority.
Are SMS reminders worth the extra cost?
Based on the research covered in our no-show reduction guide, generally yes — even preventing one or two no-shows a month typically covers the cost of most SMS-inclusive plan upgrades for a small service business.
See the full research behind why this matters in our guide to reducing no-shows with booking software, and our breakdown of what scheduling software actually costs.