PLC Schedule vs Sonu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PLC Schedule
Access your personal schedule, view class offerings, and book additional services. This app helps you manage your time and access Pritikin program information conveniently from your device.
- View Pritikin schedule
- Manage personal appointments
- Request a la carte services
- View ongoing promotions
- Access program information
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Download the Pritikin App today to view the entire Pritikin schedule as well as your personal appointments, request a la carte services, view ongoing promotions, and more. Optimize your time and maximize the convenience of accessing everything you need from one place, right on your device!
Sonu
This app offers personalized, drug-free acoustic resonance therapy for nasal congestion relief. It uses AI and facial scanning to tailor treatments, delivered via a separate wearable band. Track your progress and enjoy convenient, at-home therapy sessions.
- Personalized acoustic resonance therapy
- Drug-free treatment
- AI-enhanced facial scanning
- Bluetooth connectivity
- Treatment session tracking
- Micro vibration options
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SONU provides personalized, drug free, acoustic resonance therapy to treat nasal congestion symptoms caused by allergic and non-allergic rhinitis. SONU is backed by FDA authorization, extensive clinical trials, and enhanced by AI. SONU works with iPhone X or later models and uses Bluetooth to connect with your iPhone. To get started simply download the app and follow the on-screen instructions to get to your 15 minute treatment session. You can choose to relax with the gentle micro vibrations or go about your daily activities. The SONU app takes a scan of your face using the front facing camera and personalizes the acoustic therapy based on your facial anatomy and other proprietary factors. The acoustic resonance is delivered via medical grade bone conduction transducers in the SONU band (a lightweight, wearable headband purchased separately). SONU is proven to be safe and effective and also has a history of your treatment sessions in the app so you can track your usage over time. Medical Disclaimer: This app does not replace or provide medical advice and diagnosis. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Regulatory Jurisdiction: The SONU band is authorized for use by regulatory authorities only in the USA (FDA) and Singapore (HSA). Any feedback? Contact us at https://soundhealth.life/contact/ Additional information including the privacy policy, biometric notice and terms of use can be found at https://soundhealth.life
Screenshots
Verdict
The clearest difference is rating: Sonu at 4.4 against PLC Schedule's 4.0. Sonu also leads on ratings volume (232 vs 4) and monetization model (free vs ad-supported). PLC Schedule's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sonu holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Sonu has 232 ratings behind it against 4, so its average is the more settled of the two.
PLC Schedule ships an update monthly, Sonu every 3 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | PLC Schedule | Sonu |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) | 4.4 (232 ratings) — better |
| Positive reviews | — | 73.1% of reviews |
| Number of ratings | 4 | 232 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 192 MB | 209 MB |
| Age rating | 4+ | 4+ |
| Developer | FLORIDA PRITIKIN CENTER, INC | Sound Health Systems, Inc. |
Customer experience
PLC Schedule
Sonu
Bugs and requests
PLC Schedule
Not enough reviews yet to summarise bugs or requests.
Sonu
Reported bugs
6 issues- Infinite login loop
- App locks after session end
- Bluetooth connection issues
- Offline mode non-functional
- Cannot end session
Show 1 moreShow fewer
- Server maintenance prevents app use
Requested features
11 requests- Bring back old features
- Provide battery life indicator
- Add warning for high audio
- Restore alignment check
- Allow disconnection from band
Show 6 moreShow fewer
- Provide feedback on band connection status
- Improve SONUcast loading time
- Allow users to remove mediation sounds
- Improve offline mode functionality
- Add real number scales to data graphs
- Enable Bluetooth connection to two devices simultaneously
In-app purchases
PLC Schedule
No in-app purchases
Sonu
No in-app purchases
