CDM Captions vs SoundClass
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CDM Captions
This app synchronizes your smartphone with movie showings in cinemas. It allows you to read text information, such as subtitles or hearing-impaired channels, directly on your device.
- Synchronize smartphone with movie showings
- Read hearing-impaired channels
- Access language subtitles
- Display text information on device
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CDM Captions is a mobile app that allows cinema viewers to synchronize their smartphone with the movie showing and read text information (Hearing Impaired channel or Language subtitles) on their device.
SoundClass
This app uses AI to detect and record various sounds in your environment, providing real-time alerts. It's particularly useful for nighttime awareness, sleep analysis, and documenting incidents.
- AI sound detection
- Real-time alerts
- Sleep quality analysis
- Sound recording and playback
- Mosquito and animal sound detection
- Everyday sound identification
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Turn your iPhone or iPad into a personal AI sound detector. SoundClass recognizes important sounds around you, keeps a clear detection history, and helps its models adapt to your environment. HOW IT WORKS 1. Choose a category: Animals, Baby, Health, Mosquitoes, or Security. 2. Start detection and select the sensitivity that fits your room. 3. Receive a local notification when SoundClass confirms a sound. 4. Review saved audio detections as correct, incorrect, or another sound. 5. Use those reviews to train improved models for your environment. SOUNDS SOUNDCLASS CAN RECOGNIZE • Cats, dogs, and mice • Baby crying and snoring • Coughing, sneezing, and snoring • Mosquito activity • Door knocks, glass breaking, gunshots, and alarm sirens FEATURES • Live AI sound recognition on your device • Adjustable sensitivity and fine-tuning controls • Detection history with audio clips and confidence details • Audio review and personalized model training • Local notifications for confirmed detections • Optional HomeKit light response • Multiple themes with light and dark appearance Recognition accuracy can vary with distance, background noise, device placement, microphone quality, and the sound itself. SoundClass is an assistive utility and must not be used as an emergency, medical, security, or safety-critical alert system. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ GoldTime Terms and Conditions: https://goldtime.com.ar/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: CDM Captions at none against SoundClass's 7. CDM Captions also leads on ads (none vs shown) and iOS requirement (12.0 vs 26.0). SoundClass's advantage is update cadence (every 10 days vs every 47 months). On price and device support 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. SoundClass sells 7 in-app purchases, starting at $4.99 per month. CDM Captions asks for nothing beyond the download.
CDM Captions ships an update every 47 months, SoundClass every 10 days. The most recent releases landed on November 2, 2026 and October 24, 2026 respectively.
| Parameter | CDM Captions | SoundClass |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (10 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 10 — better |
| Update frequency | Every 47 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 24 MB | 54 MB |
| Age rating | 4+ | 12+ |
| Developer | CINE DIGITAL | Javier Ariel Bargas |
Customer experience
CDM Captions
SoundClass
In-app purchases
CDM Captions
No in-app purchases
SoundClass
- Gold Monthly$4.991 Month
- Gold Yearly$44.991 Year
- Battery x 10$0.99
- 100 Credits$0.99
- Battery x 40$1.99
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- 500 Credits$2.99
- 1000 Credits$4.99









