Comparison

Serene Kid vs Contraction Timer & Tracker +.

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

Head to head
About

Serene Kid

Features
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It is a small electronic device that works in conjunction with a smartphone (tablet) app. It monitors the child's motor behavior while he or she is watching a favorite cartoon. The Serene KID device analyzes the child's movements, sets an individual criterion for "correct" motor behavior, and controls the viewing of the movie. If the child's motor behavior is normal, the movie runs smoothly. If the child shows excessive motor activity, the screen goes out, briefly depriving the child of the pleasure of watching the movie. Each such daily session lasts 20 minutes. After about a month, the excessive motor activity will disappear, perseverance will appear and attention will become stable. Serene KID is a training device that works automatically and does not require any effort from either the parents or the child. Serene KID does not require any special knowledge and skills. Anyone with a smartphone can use Serene KID. Serene KID - uses the best technologies of behavioral therapy, which managed to "embed" in a microprocessor device. The essence of Serene KID technology is to accelerate the development of brain mechanisms that inhibit excessive excitation and control behavior. The technology is based on the development of natural brain mechanisms and does not use any physical influences. The technology utilizes the child's natural desire for entertainment.

About

Contraction Timer & Tracker +.

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Our app is a convenient contraction tracking tool designed to help expectant mothers monitor labor progress and stay informed throughout the childbirth journey. Easily record the duration and frequency of contractions using a built-in timer that automatically tracks intervals between each contraction. Monitor patterns over time, log contraction intensity, and start or pause tracking sessions whenever needed. The app analyzes your recorded data to help you better understand contraction trends and provides helpful insights to support you during labor. A complete history of your sessions is stored securely, making it easy to review past records or share information with your healthcare provider. In addition to tracking tools, the app includes educational resources, helpful guides, and informative articles to support you throughout pregnancy and labor. Key Features: - Contraction timer with duration and interval tracking - Contraction intensity logging - Session history and progress monitoring - Data export and sharing options - Personalized insights and labor guidance - Educational guides and pregnancy resources - Simple and easy-to-use interface Free Features Include: - Unlimited contraction tracking - Duration and interval measurements - Session history and sharing tools Premium Features Unlock: - Contraction intensity tracking - AI-powered insights and recommendations - Full access to guides and educational content - Additional tracking and support tools Whether you're preparing for your due date or actively monitoring labor, the app provides practical tools to help you stay organized and informed. Subscriptions & In-App Purchases: Weekly โ€” $4.99 Monthly โ€” $12.99 Yearly โ€” $39.99 Lifetime โ€” $59.99 Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. You can manage or cancel your subscription anytime through your device settings. Privacy Policy Link: https://docs.google.com/document/d/1xgQa9MlrIV-s7-9gpc8Ql7ESzN0gHIB7uhhRhZ7MBug/edit?usp=sharing Terms of Use Link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Serene Kid4 screens
Contraction Timer & Tracker +.4 screens

Verdict

The call

The clearest difference is in-app purchases: Serene Kid at none against Contraction Timer & Tracker +.'s 7. Contraction Timer & Tracker +.'s advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Contraction Timer & Tracker +. sells 6 in-app purchases, starting at $4.99 per 7 days. Serene Kid asks for nothing beyond the download.

UpkeepUpdate frequency

Serene Kid ships an update every 2 months, Contraction Timer & Tracker +. every 3 weeks. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard2 real differences ยท 4 level
Serene Kid versus Contraction Timer & Tracker +.: the parameters behind the verdict, then further details
ParameterSerene KidContraction Timer & Tracker +.
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.6 โ€” better16.0
Further details โ€” not scored
Size103 MB62 MB
Age rating4+4+
DeveloperAdvanced Yoga Therapy, IncMCVICKER CAPITAL, LLC

In-app purchases

None

Serene Kid

No in-app purchases

6 purchases

Contraction Timer & Tracker +.

Subscriptions5
  • Weekly2 variants$4.997 Days
  • Weekly3 Days trial$4.997 Days
  • Weekly-Trial3 Days trial$4.997 Days
Show 2 more
  • Monthly$12.991 Month
  • Yearly$39.991 Year
One-time1
  • Lifetime$59.99

Questions

Is Serene Kid free?
Serene Kid is free to download, with no in-app purchases.
Is Contraction Timer & Tracker +. free?
Contraction Timer & Tracker +. is free to download, with in-app purchases available.
Do Serene Kid or Contraction Timer & Tracker +. have ads?
Neither Serene Kid nor Contraction Timer & Tracker +. shows ads.
Which is updated more often, Serene Kid or Contraction Timer & Tracker +.?
Serene Kid ships an update every 2 months, and Contraction Timer & Tracker +. every 3 weeks. Most recently, Serene Kid was updated on October 14, 2026 and Contraction Timer & Tracker +. on October 11, 2026.

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