1 Unit
$39.95
50% off · test one first
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Repellio Review: Do Ultrasonic Pest Repellers Really Work?
A small plug-in device that promises to drive mice, roaches and ants out of your home with sound waves, no chemicals. We look at how it works, what the evidence says about ultrasonic repellers, the claims that go too far, and what you really pay.
Disclosure: this is an independent review. If you buy through our links we may earn a commission at no extra cost to you. This does not change our opinion.
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Plug-inno refills or batteries🧪
Chemical-freeno sprays, no traps📐
120 sq. ft.per device (brand claim)↩️
30 daysmoney-back guarantee0.0OUT OF 5
Our Score at a Glance
Score based on the official sales and checkout pages reached through our affiliate link, the store's policies, and published research and consumer guidance on ultrasonic pest repellers.
The basics
What Is Repellio?
Nobody wants mice in the walls or roaches in the kitchen, and many people don't want poison or sprays around kids and pets. That's the gap plug-in pest repellers try to fill.
Repellio is a plug-in pest repeller. You plug it into a wall outlet and it emits what the brand calls "triple soundwave technology": ultrasonic, electromagnetic and "bionic" waves meant to make the room uncomfortable for pests so they leave. It uses no chemicals, kills nothing and needs no refills.
- Plug-and-play: no setup, refills or batteries
- Chemical-free, no traps or dead pests to clean up
- Covers up to 120 sq. ft. per device (brand claim)
- Inaudible to people, according to the brand
- Brand lists mice, rats, roaches, ants, mosquitoes, spiders and more
- 30-day money-back guarantee
How it works
What Repellio Does (and What to Expect)
Tap a topic to see how it works and what to keep in mind.
How to use
How to Use Repellio
1Plug it in
Choose an outlet in the room where you see pests, without furniture blocking it.
2Give it time
The brand says most pests leave within 48 hours, with full results after a few days.
3Combine it
Seal gaps, store food in closed containers and keep the area clean so pests have less reason to stay.
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Real infestation? For rodents in the walls, termites or a large roach problem, call a licensed pest control professional. A plug-in repeller isn't a substitute.
Claims check
What the Sales Page Says vs. Our Honest View
| Topic | The sales page says | Our honest view |
|---|---|---|
| Effect | "Instantly repels pests" | Independent studies on ultrasonic repellers show mixed or weak results, especially for insects. We found no independent test of Repellio itself. |
| Pests | "Repels all pests", including termites and mosquitoes | Too broad. Research on mosquitoes and roaches has mostly found little or no effect. |
| Results | "Pests never return" | No device can promise this. Food, water and entry points decide whether pests come back. |
| Technology | "Triple soundwave: bionic, electromagnetic, ultrasonic" | "Bionic" isn't a defined technology, and evidence for electromagnetic repellers is even thinner. |
| Pets | "Inaudible to pets" | Dogs and cats hear higher frequencies than people; pet rodents and rabbits may be bothered. |
| Ratings | "4.7 stars, 1,888 reviews", "rated the best pest repeller of 2026" | Shown on the brand's own page, which says it displays only 4 and 5-star reviews. We couldn't find who gave the award. |
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Why this matters: the U.S. Federal Trade Commission has warned sellers of ultrasonic pest repellers about unsupported claims. Think of Repellio as a cheap, chemical-free extra, not a guaranteed fix.
Pros & cons
The Good and the Not-So-Good
👍 Pros
- Chemical-free, no traps or dead pests
- Plug-and-play, no refills or batteries
- Silent to people
- Low price per unit in multi-packs
- 30-day money-back guarantee
👎 Cons
- Weak independent evidence for ultrasonic repellers
- Claims like "repels all pests" and "never return" go too far
- Sound doesn't pass walls; one unit per room at most
- May bother pet rodents, rabbits and some dogs or cats
- Extended warranty ($5.99/unit) pre-selected and $8.99 shipping at checkout
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Our honest take: Repellio is easy to use and chemical-free, and that's the honest appeal. The problem is the promise: independent research on ultrasonic repellers is mixed at best, and the sales page claims far more than any study supports. If you want to try one, buy a single unit, use the 30-day guarantee as your test window and combine it with the basics: seal gaps, store food well and keep things clean. For a real infestation, call a professional.
Customer feedback
What Are Buyers Saying?
The sales page shows 4.7 stars from 1,888 reviews, but says it displays only 4 and 5-star reviews. These are the themes it highlights.
🔌 Easy to use🧪 No chemicals🐾 Pet households🐜 Ants and roaches📊 Only positive reviews shown🔬 Little independent proof
Reviews on a brand's own page are selected by the brand, so weigh them alongside the specifications and return policy.
30-second quiz
Is Repellio Right for You?
Answer 4 quick questions and get a personal suggestion.
Prices
Repellio Packages
Prices from the official checkout at the time of writing. Shipping is $8.99, and an extended warranty ($5.99 per unit) is pre-selected; untick it if you don't want it.
3 Units
$31.66
each · $94.98 total · 60% off
Check Price5 Units
$24.00
each · $120 total · best seller
Check Price10 Units
$20.00
each · $200 total · 75% off
Check Price30DAYS
30-Day Returns, in Plain Words
You can return within 30 days of receiving your order. Damaged or defective items are replaced or refunded (send photos). For a change of mind, the item must be unused, undamaged and in its original packaging with all accessories. Contact support first to get a return authorization (RMA) and the return address, pay the return shipping, and email the tracking number. Original shipping isn't refunded.
FAQ
Repellio: Frequently Asked Questions
Does Repellio really work?
The brand says yes, but independent research on ultrasonic pest repellers shows mixed or weak results, especially for insects. We found no independent test of Repellio itself.
Is Repellio safe for pets?
It uses no chemicals. Dogs and cats hear higher frequencies than people, and pet rodents or rabbits may be bothered, so watch your pets after plugging it in.
How much does Repellio cost?
$39.95 for one, $31.66 each for 3, $24 each for 5 and $20 each for 10, plus $8.99 shipping, on the official checkout at the time of writing.
How many do I need?
One per room at most. The brand says each covers 120 sq. ft., and sound doesn't go through walls or furniture.
Does it kill pests?
No. It's meant to repel them, so there are no dead pests to clean up.
What is the return policy?
30-day money-back guarantee. Contact support first; return shipping is usually on you and the original shipping isn't refunded.
Where can I buy Repellio?
From the official Repellio order page, which shows the current package discounts.
Final verdict
Is Repellio Worth It?
If you want a chemical-free extra against mild pest problems, Repellio is cheap and easy: plug it in and forget it, with a 30-day money-back guarantee.
Just keep expectations realistic. Evidence for ultrasonic repellers is weak, and claims like "repels all pests" go too far. Test one unit, seal gaps and store food well, and call a professional for a real infestation.
Check the Current Repellio Offer →
