Comparison

CDM Captions vs SoundClass

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Synchronize smartphone with movie showings
  • Read hearing-impaired channels
  • Access language subtitles
  • Display text information on device
Features
Read full description

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.

About

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.

Highlights
  • AI sound detection
  • Real-time alerts
  • Sleep quality analysis
  • Sound recording and playback
  • Mosquito and animal sound detection
  • Everyday sound identification
Features
Read full description

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

CDM Captions4 screens
SoundClass4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
CDM Captions versus SoundClass: the parameters behind the verdict, then further details
ParameterCDM CaptionsSoundClass
PriceFreeFree
Rating—4.4 (10 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—10 — better
Update frequencyEvery 47 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.0
Further details — not scored
Size24 MB54 MB
Age rating4+12+
DeveloperCINE DIGITALJavier Ariel Bargas

Customer experience

CDM Captions

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SoundClass

All ratings10 ratings
Positive80.0%
Neutral10.0%
Negative10.0%

In-app purchases

None

CDM Captions

No in-app purchases

7 purchases

SoundClass

Subscriptions2
  • Gold Monthly$4.991 Month
  • Gold Yearly$44.991 Year
One-time5
  • Battery x 10$0.99
  • 100 Credits$0.99
  • Battery x 40$1.99
Show 2 more
  • 500 Credits$2.99
  • 1000 Credits$4.99

Questions

Is CDM Captions free?
CDM Captions is free to download, with no in-app purchases.
Is SoundClass free?
SoundClass is free to download, with in-app purchases available.
Do CDM Captions or SoundClass have ads?
SoundClass shows ads; CDM Captions does not.
Which is updated more often, CDM Captions or SoundClass?
CDM Captions ships an update every 47 months, and SoundClass every 10 days. Most recently, CDM Captions was updated on November 2, 2026 and SoundClass on October 24, 2026.

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