Email review requests work. If you send one with a direct link at the right moment, a good percentage of customers will click through and leave a review. It's a legitimate channel, and plenty of businesses have built strong Google profiles using it.
But SMS tends to work better, and the reason comes down to one thing: timing. Not the format itself, but what the format makes possible.
For businesses where customers physically leave right after service, the window between "they just had a great experience" and "they've moved on with their day" is short. SMS keeps you in that window. Email, because of how people process their inboxes, often doesn't.
The Open Rate Gap
The numbers here are pretty hard to argue with.
That gap matters for review requests specifically because timing is everything. The best moment to ask a customer for a review is right after the high — when the experience is fresh, the satisfaction is real, and they're still thinking about your business. A well-timed email absolutely captures that window. The problem is that most email review requests aren't timed to the customer's experience — they're timed to a workflow calendar, which means they often arrive 48-72 hours later when the feeling has already faded.
SMS removes that timing risk. A text sent 30-45 minutes after service arrives when the customer is still in it, almost by default, because it's delivered immediately.
The Friction Difference
Both email and SMS can include a direct link to your Google review page, and both can be low friction when done right. But there's a practical difference in how people interact with each format.
When a review request arrives by text, the customer is already on their phone. Tap the link, write a few sentences, submit. The whole thing happens in one device, in one session, without switching context.
Email often requires a different flow — open the email on a phone or laptop, click the link, potentially switch apps or browsers, complete the review. It's not dramatically harder, but each additional step is an opportunity to get distracted and come back to it later, which often means never.
For something where the customer is doing you a favor, every bit of friction you remove helps.
Why It Feels More Personal
There's something else going on beyond the mechanics, and it's a little harder to quantify.
A personalized email — especially one that references the specific service and arrives the same day — can feel genuinely direct and human. Done well, it doesn't feel like marketing at all.
But in practice, most business emails land in an inbox alongside promotional messages, newsletters, and other automated follow-ups. Even when your message is personal and well-written, the format puts it in competition with everything else in that tab.
A text lands in a different place — the same thread as messages from friends and family. Even when customers know it's automated, the format carries a different emotional weight. "Thanks for coming in today" reads more like a real person reaching out, and that perception tends to show up in response rates.
Which Businesses Benefit Most
SMS review requests work for any local business, but the impact is especially pronounced for businesses where the customer physically leaves right after service.
Auto detailing is a good example. A customer picks up their car looking brand new, drives away happy, and the emotional high is real. An email sent that same evening still has a decent shot. But a text sent 30-45 minutes after they've pulled out of the lot catches them while they're still thinking about how the car looks, which is better timing than even a well-written email typically achieves.
The same logic applies to any service where the customer is immediately mobile after: home services, pet grooming, salons, mobile services. The customer leaves the physical experience and moves on with their day. SMS reaches them in that gap. Email tends to reach them later, when they're settled somewhere and checking their inbox.
For businesses where customers sit at a desk afterward — professional services, healthcare — the difference narrows, because email is more naturally part of their daily workflow. Both channels can work well there. SMS still tends to outperform on response rate, but it's less dramatic than for mobile-first businesses.
What the Message Should Actually Say
One thing worth emphasizing: SMS doesn't require a clever message. The format does most of the work.
Something like "Thanks for coming in today — if you have a minute, we'd love a quick Google review: [link]" is plenty. Short, direct, easy to act on. You don't need to oversell the ask or explain why reviews matter to your business. The customer knows. They just need a frictionless path to do it.
Keep it under two sentences if you can. Texts that run long start to feel like emails, and that defeats the purpose.
The Compliance Side
A quick note on this, because it matters: sending SMS review requests requires that customers have opted in to receive texts from your business. This isn't just a best practice — it's a legal requirement under TCPA regulations in the US.
In practice, that usually means collecting consent at the point of booking or service, either through a digital form or a checkbox when you capture their phone number. If you're asking for a customer's phone number anyway, adding a consent step is straightforward, and it protects you from compliance issues down the road.
Done right, the opt-in process is simple, and the customers who give consent are the ones most likely to respond to your follow-up anyway.
The Format Matters as Much as the Message
Most businesses spend a lot of time thinking about what to say in a review request and not much time thinking about where to say it. But the channel shapes how the message lands at least as much as the words do.
Email is a solid channel for review requests and will keep working for a lot of businesses. SMS tends to get better results because it makes good timing automatic rather than something you have to engineer around your send schedule.
If your email response rate feels flat, timing is usually worth looking at before the message itself. Are your sends going out the same day as service, or a few days later? Are customers still thinking about the experience when the request arrives? Fixing that alone often moves the needle more than rewriting the copy.
And if you want to remove the timing variable entirely, SMS is a good way to do it.
Related: Our complete guide to getting more Google reviews covers timing, templates, QR codes, and automation in one place. We also built free tools you can start using today.
Frequently Asked Questions
Is it legal to send SMS review requests to customers?
Yes, but customers need to have opted in to receive text messages from your business. Under TCPA regulations in the US, you need explicit consent before sending marketing or promotional texts, which includes review requests. Collecting consent when you capture a customer's phone number — through a form, checkbox, or verbal confirmation — is the standard approach. Customers who opt in are also more likely to respond, so the consent step tends to improve the quality of your list.
How long after service should I send an SMS review request?
For most businesses, 30-60 minutes after service is the sweet spot. It's long enough that the customer has left and settled in, but short enough that the experience is still fresh and the emotional high hasn't faded. For services where satisfaction takes a day or two to fully register — like certain beauty treatments or detailed work that needs to dry or set — the next day can work well too. The key is catching them while they're still thinking about it.
Can I send both an SMS and an email review request?
You can, but it's usually better to pick one. Sending both back-to-back can feel pushy, and if the customer responds to the text, they'll get the email reminder anyway. For businesses where customers have both an email and a phone number on file, SMS tends to perform better as the primary channel. Email can work as a follow-up if the customer hasn't responded after a few days, but most of the responses you're going to get will come from the first touchpoint.
What should a text message review request say?
Keep it short and direct. Something like "Thanks for coming in today — if you have a minute, we'd really appreciate a quick Google review: [link]" is plenty. Two sentences maximum. The goal is to make it easy to act on, not to explain why reviews matter or sell the customer on doing it. They already know it's a favor. A short, warm message with a direct link does better than a longer message that has to be scrolled through.
Does SMS work better than email for all types of businesses?
SMS tends to show the biggest advantage for businesses where customers physically leave right after service — detailing shops, home services, pet groomers, salons, mobile services. For businesses where customers sit at a desk and check email regularly, like professional services or healthcare offices, the gap narrows, but SMS still tends to outperform on response rate. The core advantage is immediacy: SMS arrives when the customer is already on their phone, which is usually right after leaving your business.