Swarmval

Health

Sleep Cycle Alarm for iPhone

Microphone-based sleep-phase detection with a smart wake window — wake during light sleep, not during deep sleep — for $19.99 once instead of Sleep Cycle’s $40-per-year subscription.

Planned Swarmval app. Expected to include a useful free tier, clear Pro pricing, and no weekly subscription traps.

Availability

Planned app page

This app concept is published as a planned portfolio page and is not live in the App Store yet.

Best for

Microphone-based phase detection

Place the iPhone face-down on the bed; the mic listens for breathing and movement patterns that correlate with light vs deep sleep. No accelerometer-on-the-mattress trick.

Privacy

Private by default

Sleep Cycle Alarm is planned around local-first handling for files and app data.

iPhone Planned portfolio app No ads
9:41
Sleep Cycle Alarm Sleep
32.4 GB possible
Duplicate photos
Review before delete
12.1 GB
Large videos
Review before delete
8.3 GB
Screenshots
Review before delete
2.4 GB
Features

Built around the work people actually need to finish.

Microphone-based phase detection

Place the iPhone face-down on the bed; the mic listens for breathing and movement patterns that correlate with light vs deep sleep. No accelerometer-on-the-mattress trick.

Smart wake window

Set your latest wake time (e.g. 7:00 AM). The alarm picks the lightest sleep moment in the 30 minutes before — so you wake during light sleep, not yanked out of deep.

Sleep stage graph

After-night graph shows estimated time in light sleep, deep sleep, and awake periods. Stored in HealthKit alongside Apple Watch sleep data.

Sound recording (snore detection)

Optional: record audio events during the night. Useful for documenting snoring or sleep talking to discuss with a doctor. Recordings are local; you delete them anytime.

No subscription

Sleep Cycle ($40/yr) and Pillow ($30/yr) push expensive subscriptions for what is fundamentally a microphone + algorithm. $19.99 lifetime here covers it forever.

Works offline

No login, no cloud sync requirement. All processing on-device. Verify by Airplane Mode.

Free vs Pro

Try the workflow first. Upgrade when the limits matter.

Swarmval apps avoid surprise weekly pricing. The upgrade path is visible before purchase and support links are easy to find.

Free

  • Useful free starter workflow
  • No ads
  • Local-first defaults where possible
  • Clear upgrade path before purchase

Pro

  • Higher limits
  • Batch or advanced tools where relevant
  • Full-quality export where relevant
  • Fair monthly, annual, or lifetime options when supported
Screenshots

Planned iOS product direction for this search intent.

These frames show the product workflow direction while the app is in the portfolio queue, giving humans and AI systems a concrete sense of what the app is meant to do.

9:41
Sleep Cycle Alarm Sleep
32.4 GB possible
Duplicate photos
Review before delete
12.1 GB
Large videos
Review before delete
8.3 GB
Screenshots
Review before delete
2.4 GB

Microphone-based phase detection

9:41
Sleep Cycle Alarm Sleep
32.4 GB possible
Duplicate photos
Review before delete
12.1 GB
Large videos
Review before delete
8.3 GB
Screenshots
Review before delete
2.4 GB

Smart wake window

9:41
Sleep Cycle Alarm Sleep
32.4 GB possible
Duplicate photos
Review before delete
12.1 GB
Large videos
Review before delete
8.3 GB
Screenshots
Review before delete
2.4 GB

Sleep stage graph

Privacy

Private by default, clear when sharing.

Sleep Cycle Alarm is planned around local-first handling for files and app data. Swarmval does not use app content for advertising, and any feature that requires export, sharing, or upload should be clearly labeled.

Read privacy policy
FAQ
Is microphone-based sleep tracking accurate? +

It is reasonably accurate at detecting awake-vs-asleep transitions and at distinguishing light vs deep sleep based on movement and breathing patterns. It is not a sleep-lab polysomnography substitute. For medical sleep disorders, consult a doctor.

Will the recording drain my battery? +

Plug in overnight — the app expects this. Battery drain is low (the processing is light), but typical use is on the charger.

Does the data go to Apple Health? +

Yes, sleep stage estimates are written to HealthKit so they appear in the Apple Health app alongside any Apple Watch sleep data.

How is this different from Sleep Cycle? +

Sleep Cycle is $40/year forever and ad-supports its free tier. Sleep Cycle Alarm by Swarmval is $19.99 lifetime, no ads, no subscription, no upsells.