Pick a quality tier, cap your storage, and keep months of history on one phone.
An all-night recording is one long audio file, and night after night those files add up. Snore Timeline gives you three ways to control how much space they take. The recording quality you pick in Settings, a Storage Limit that clears old nights for you, and Episode-Only Storage that drops the silence between events. This page explains how each one works, what it costs you in playback detail, and what to do when your phone runs short of room. Every recording stays on your device. See the Privacy Policy for the full picture.
Open Settings and choose one of three recording quality levels. Each option lists its frequency range and an estimated file size, so you can weigh the trade-off before bed. The tiers differ in how much of the sound spectrum the saved file keeps. A wider range means richer playback and bigger files.
How to choose. If snoring is what you care about, Basic captures the sounds that matter and keeps files small. Step up to Standard or High Fidelity when you want clearer playback of speech or fine detail.
Does a lower tier hurt detection? No. Snore detection works at all three quality levels, and choosing a lower one doesn't make detection any less accurate. The quality setting only decides how much detail the saved file keeps for playback. Detection runs in real time as the sound comes in. The trade-off shows up when you listen back, and nowhere else.
Why did last night sound quieter? On Basic, the compression that shrinks the file also flattens detail in softer sounds, so quiet snores can come out muffled. Switching to Standard or High Fidelity gets you more clarity. Microphone distance matters too. The farther the phone is from you, the fainter the recording. Keep it about 1 to 2 feet away with the microphone unobstructed, and try audio enhancement when you play a night back.
What does a full night cost? A typical 8-hour night runs from roughly 64 MB on Basic to about 200 MB on High Fidelity, scaling with how long you record. The two features below keep that total in check over the long run.
The Storage Limit puts a hard cap on how much space your recordings can take up. Turn it on in Settings and pick 1 GB, 2 GB, 4 GB, or 8 GB. Once total usage passes that limit, the app deletes your oldest nights until you're back under it, oldest first, so your recent history always wins. The app shows roughly how much each cap holds at high quality. About 3 to 5 days at 1 GB, 1 to 2 weeks at 2 GB, 2 to 3 weeks at 4 GB, and 4 to 6 weeks at 8 GB.
A usage bar in Settings shows your current size against the limit. Cleanup runs in the background after a recording stops, with progress messages like "Freeing up X MB" and then "Freed X MB" so you can see what got removed.
The Keep History toggle controls what cleanup removes:
There's also a reverse cleanup mode that keeps your full audio recordings and removes the oldest episodes and analysis instead, in case the audio matters more to you than the history.
Will the app delete recordings without asking? Only if you turn the Storage Limit on. With it off, nothing gets removed on its own. Your recordings stay until you delete them yourself. Episode-Only Storage, covered next, also trims audio by itself when it's on, but it keeps all of your episode data.
If you plan to share specific nights, export the audio before cleanup gets to them. Once the Storage Limit removes a night's audio, only the episode data is left for that night.
Most of an overnight recording is a quiet room. The parts you replay are the episodes, the stretches of snoring, sleep talking, and other detected events. Episode-Only Storage works on that basis. After each session ends, it removes the silent portions of the recording and keeps only the segments that hold detected episodes. That cuts storage use by a wide margin and keeps all of your episode data.
Turn it on in Settings and it runs after every night with no further input. You can also trim a single past night by hand. In Settings, choose the night and tap the option to trim that night's recordings down to the episode segments.
Since the trim happens after the session, the app has already analyzed the full night before anything gets removed. Your timeline, episode counts, and sleep analysis come out the same. The only thing you lose is the ability to play back the silence between events.
When your usage passes the limit you set, Settings shows an "Over Limit - Tap to Clean Up" button. Tap it to start cleanup on the spot instead of waiting for the background pass. The app shows "Freeing up X MB" and then "Freed X MB" as it goes, and it follows your Keep History setting. It either strips audio from the oldest nights or removes those nights entirely, oldest first, until you're back under the limit.
Besides the cleanup button, there are four ways to get space back:
Freeing up general storage on your iPhone helps too, since the app shares space with everything else on the phone.
The app has two thresholds so a recording never starts on a phone that can't hold it:
If space runs out in the middle of a session, the recording stops on its own and the app shows "Storage full - recording stopped." Everything captured up to that point follows the rules above. If device storage gets critically low, Snore Timeline falls back to working in memory to help avoid losing data.
A Storage Limit with Keep History on, plus Episode-Only Storage, keeps most phones clear of these thresholds for good. If recordings keep hitting the storage wall, Troubleshooting walks through the fix.
