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On-Device AI

The Snore Detection App That Stays on Your iPhone

Snollo classifies snoring, breathing, coughing, and sleep talking using on-device Core ML — and saves short clips so you can hear exactly what your nights sound like.

Unlike SnoreLab and Sleep Cycle, Snollo never uploads your bedroom audio to a server. Free to download, no account required, snore detection included on the free tier.

Download Free — Snore Detection Included

iPhone · iOS 17+ · Apple Watch optional

What a snore detection app should actually do

Classify, don't just record

Recording 8 hours of audio gets you a haystack. A useful snore detection app classifies sounds in real time — so by morning, you have a timeline of snore events, not raw audio you'd never listen through.

Let you play the clips back

Reading 'you snored 47 times' is abstract. Hearing one of the actual snores tells you immediately whether it's the loud, sleep-apnea-suggestive kind or the soft kind that's barely worth tracking. Snollo saves short clips, free tier included.

Show intensity over time, not just counts

Snoring isn't binary. A useful app shows snore intensity throughout the night, so you can see whether it gets worse when you sleep on your back, after wine, or in certain phases of the night. Patterns are how you find what helps.

Keep your bedroom audio out of the cloud

Many snore apps upload your audio to their servers for processing. Snollo runs Apple Core ML on-device — the audio never leaves your iPhone. For the most intimate audio any app could collect, that's the right default.

What Snollo detects

Snollo's Core ML model is trained to classify several distinct nighttime sound categories. Each detected event gets a timestamp, a confidence score, and a short playback clip.

Snoring. The main event. Loud, irregular, or persistent snoring is the strongest signal for sleep apnea risk.
Breathing patterns. Regular breathing versus pauses or irregular rhythm — relevant for spotting potential breathing-related sleep disturbances.
Coughing. Frequent coughing during sleep is often missed in self-reports but obvious in a timeline view.
Sleep talking. Captured as a separate category so you can play it back the next day — sometimes funny, sometimes informative about stress.
Environmental sounds. Outside noise, partner movement, household sounds — categorized separately so they don't pollute your snore data.
Silence. Discarded immediately. The bulk of a normal night is silence, and saving it would waste storage.

Snore Detection App Comparison

How the major iPhone snore detection apps compare on accuracy, playback, and cost.

Snore detection app comparison
App Detection Snore playback Apnea risk Price
Snollo ★ On-device Core ML Yes, free Risk indicators Free + optional Premium
SnoreLab Server-side Yes, free (limited) Not stated Free + $3.99/mo Premium
Sleep Cycle Server-side Premium only Not stated $39.99/yr
Pillow On-device Premium only Not stated Free + $4.99/mo
ShutEye Server-side Limited Not stated $59.99/yr

Based on publicly available App Store listings as of May 2026.

Related

Free assessment

Sleep apnea risk test

If your snoring concerns you, take the validated STOP-BANG questionnaire — 60 seconds, no email.

No watch needed

iPhone-only sleep tracker

Track sleep with just your iPhone — no Apple Watch needed.

Privacy

The most private sleep tracker

Why on-device audio processing matters when the microphone is in your bedroom.

From the Snollo blog

Guide

How to Record Snoring on iPhone (4 Steps, Private & Free)

The easiest way to record snoring on iPhone is with a sleep tracking app that processes audio on-device. Here's how to do it in four steps — including what to look for to protect your bedroom privacy.

Guide

Does Apple Watch Track Snoring? (And How to Fix It)

Apple Watch doesn't record snoring—it tracks motion, heart rate, and breathing disturbances. Here's what it measures, what it can't, and how to add private snore detection with Snollo and your iPhone mic.

Guide

Snollo vs SnoreLab: Which Snoring App Is Better in 2026?

Comparing Snollo and SnoreLab on privacy, features, Apple Watch support, and price. If you want snore detection that never uploads your bedroom audio to the cloud, here's what the data shows.

Snore Detection — FAQ

What is the best snore detection app for iPhone?
The strongest iPhone snore detection apps are Snollo, SnoreLab, and Sleep Cycle. Snollo classifies sounds on-device using Apple Core ML and saves short clips you can play back. SnoreLab processes audio on its servers and benchmarks your snoring against millions of users. Sleep Cycle puts snore detection behind a subscription. For accuracy plus privacy on the free tier, Snollo is the strongest pick.
How accurate is iPhone snore detection?
Modern iPhone snore detection apps using Core ML classifiers reach 90%+ accuracy on distinguishing snoring from other nighttime sounds. The iPhone microphone is more than sensitive enough — placement matters more than the hardware. Place the iPhone face-down on the mattress beside you or within 1–2 meters on a nightstand.
Does a snore detection app actually record me snoring?
Yes — but it varies by app. Snollo saves only short clips of detected snore events (a few seconds each) to your private iCloud container so you can verify them. The bulk of the night is silence and is never recorded. Apps that upload audio to their servers (SnoreLab, Sleep Cycle) record continuously and store data on company infrastructure.
Can a snore detection app diagnose sleep apnea?
No. Only a clinical sleep study can diagnose sleep apnea. What an app like Snollo can do is provide objective data — snore intensity over time, breathing patterns, frequency of events — that helps you and your doctor decide whether a sleep study is warranted. Combine it with a validated questionnaire like STOP-BANG for a stronger signal.
Is there a free snore detection app for iPhone?
Yes. Snollo includes snore detection on its free tier, with no account required. SnoreLab has a free tier but reserves most analysis features for the paid version. Sleep Cycle's free tier does not include snore detection.
Will a snore detection app drain my iPhone battery?
A full night of audio classification on iPhone uses 10–15% of battery if you're not plugged in. Most users keep the phone charging on a nightstand overnight, which makes battery drain a non-issue. Apple Core ML running on the Neural Engine is far more efficient than apps that upload audio to cloud servers.

Find out exactly what you sound like tonight

Free download. On-device AI. Snore clips saved to your private iCloud. No account, no servers.

Download Snollo Free

iPhone iOS 17+ · On-device AI · Free to download