What You Need
- An iPhone (any model running iOS 17 or later)
- A snore detection app — this guide uses Snollo (free, no account required)
- Optional: Apple Watch for sleep stage data alongside snore detection
- Optional: A phone charger at your nightstand
That’s it. No external microphone, no specialized hardware, no subscription required to get started.
Step 1: Download a Snore Detection App
Open the App Store and search for “Snollo” — or tap here to go directly to the App Store page.
Snollo is free to download. No account, email, or credit card is needed. When you open it for the first time, it will ask for microphone permission — tap Allow so the app can detect sounds overnight.
Why not just use Voice Memos? The built-in Voice Memos app records raw audio continuously, which means you’d wake up with 6–8 hours of unfiltered audio and no way to find the snoring events without listening through all of it. Dedicated snore detection apps classify sounds automatically in real time, so you get a timeline of events — not a haystack.
What to look for in any snore detection app:
- On-device audio processing (so bedroom audio stays on your phone)
- Timestamped sound clips you can play back
- Classification of different sound types (snoring, breathing, coughing, sleep talking)
- Apple Watch integration if you want sleep stage data alongside sound detection
Step 2: Position Your iPhone
Where you place your iPhone affects detection quality. The microphone needs to be within range to pick up your breathing sounds.
Recommended positions (best to acceptable):
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Face-down on the nightstand nearest your head — The most reliable option. Placing the phone face-down reduces pickup of ambient room noise (traffic, HVAC) while the bottom microphone (located near the charging port) captures sounds from the bed. Keep it within 1–3 feet of your head.
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On the mattress near your pillow — Placing the phone on the mattress surface picks up vibration in addition to airborne sound, which can improve sensitivity. Use a silicone case so the phone doesn’t slide.
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On a small stand pointing toward the bed — A $5 phone stand on the nightstand pointed toward your pillow works well and keeps the phone from being accidentally knocked over.
What to avoid:
- Placing the phone across the room (distance reduces sensitivity)
- Placing it in a drawer or under the pillow (muffles the microphone)
- Pointing it at the door instead of the bed (picks up hallway sounds instead)
If you use an Apple Watch, wear it to bed as usual. Snollo will automatically read heart rate and motion data from Apple HealthKit to add sleep stage information alongside your snore detection.
Step 3: Start a Sleep Session
Open Snollo before bed and tap “Start Session” (or your app’s equivalent). This activates the microphone listener and begins real-time audio classification.
A few things to confirm before you sleep:
- Do not put your phone on Do Not Disturb or Silent during setup — finish configuring, then switch to DND after starting the session. Most sleep tracking apps have their own DND-equivalent that suppresses notifications without closing the recording.
- Leave Snollo open (or in the background) — Modern iOS background audio permissions allow the app to continue processing while the screen is off. Snollo is designed to run in the background throughout the night.
- Plug in your charger — If you’re concerned about battery drain, plug in before you sleep. Most iPhones lose 10–15% overnight during active sleep tracking.
That’s it. Put your phone down. Sleep normally.
Step 4: Review Your Results in the Morning
Open Snollo when you wake up. You’ll see:
The sound event timeline — A chronological view of every classified sound event from the night: snoring, breathing, coughing, and sleep talking, with timestamps and duration.
Audio clips — Tap any event to listen to the original audio clip. This lets you verify detections (“is that actually snoring or is that traffic noise?”) and hear what you sound like.
Sleep stage breakdown (with Apple Watch) — If you wore an Apple Watch, you’ll see how your snoring correlated with your sleep stages. Snoring during light sleep versus deep sleep can have different implications, and this context isn’t available from any microphone-only approach.
Sleep quality score — An overall score based on your sleep architecture, duration, and disruption patterns.
Understanding Your Results
How to interpret snoring detections:
Occasional snoring detected by the app is common and usually not concerning. Most people snore occasionally, especially after alcohol, with a cold, or when sleeping in an unusual position.
Patterns worth noting:
- Snoring present for more than 30% of the night, consistently
- Snoring accompanied by breathing pauses or gasping sounds (these can be detected as distinct events in the sound classification)
- Snoring that gets worse over weeks rather than staying stable
- High snoring events correlated with significantly elevated heart rate (visible if you wear Apple Watch)
If you notice a pattern of intense, consistent snoring with what sounds like breathing disruptions, it’s worth mentioning to a doctor. Apple Watch’s Sleep Apnea Notification feature (on Series 9, 10, and Ultra 2) can independently flag breathing disturbances — if both your snore recording app and your Apple Watch are flagging the same nights, that’s actionable information for a physician.
Privacy: Where Your Recording Goes
When you record 6–8 hours of audio in your bedroom, where that audio goes matters.
Snollo: All audio processing runs on your iPhone using Apple’s CoreML framework. The raw audio never leaves the device. Only classified metadata (timestamps, event categories, intensity levels) is saved — to your private iCloud container, which is encrypted end-to-end and inaccessible to Snollo’s developers.
What to avoid: Several popular snoring apps upload bedroom audio to their own servers for processing. If you see “processed in the cloud” or if the app’s privacy label shows data collection, your bedroom recording is leaving your home. Before downloading any snore detection app, check the App Store privacy label under the developer’s name.
Frequently Asked Questions
For quick answers to the most common questions about iPhone snore recording, see the FAQ section above. For deeper coverage of how snoring relates to sleep apnea, see Sleep Apnea vs. Snoring — How to Tell the Difference.
For a comparison of snore recording apps and their privacy practices, see Snollo vs SnoreLab and Snollo vs Sleep Cycle.