Comparison

Contraction Timer & Tracker vs Rattle Toy

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

Head to head
About

Contraction Timer & Tracker

Effortlessly track labor contractions with this intuitive app. It automatically calculates duration, intervals, and frequency, providing visual history and intensity indicators. Includes a hospital bag checklist and pain relief exercises.

Highlights
  • One-tap start/stop contraction timing
  • Automatic duration, interval, and frequency calculation
  • Visual history with color-coded intensity
  • Hospital bag checklist
  • Pain-relieving exercise guide
  • Data saved even when app is closed
Features
Read full description

A reliable companion for every moment of labor. Designed with care for expecting mothers and birth partners, Contraction Timer & Tracker helps you track contractions effortlessly — so you can focus on staying calm and present. With just one tap, the app starts timing your contraction. Tap again to stop. That’s it — we take care of all the calculations for you: duration, intervals, frequency, and trends over time. No stress, no math — just peace of mind when you need it most. Everything you need in one place: • Apple Watch companion app • One-button start/stop for timing each contraction • Automatic calculation of duration, intervals, and frequency • Clear visual history of all contractions on one screen • Color-coded intensity indicators to see how things are progressing • Easy slider to record how strong each contraction feels • Add personal notes to any contraction for later reflection • Full-screen mode for easier use during labor • Edit or delete any contraction as needed • Saves your data even if you close or switch apps • A complete hospital bag checklist for both mom and baby • A helpful list of pain-relieving exercises, with instructions, to support you through contractions • Graphs and averages to help you identify patterns and decide when it’s time to go to the hospital or birthing center • Dark mode --------- Contraction Timer & Tracker Premium offers a subscription option: $19.99 per year. You can try free trial with all features available. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Your Contraction Timer & Tracker subscription will automatically renew at the end of each term and your credit card will be charged through your iTunes account unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period on the $1.99/week basis. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. By using Contraction Timer - Time labor, you are agreeing to our Privacy Policy and Terms of Use: Privacy Policy: https://goingmerry.xyz/privacy-policy/ Terms of Use: https://goingmerry.xyz/terms-conditions/

About

Rattle Toy

This app creates soothing rattling sounds and visual effects to calm crying babies. Tapping the screen reveals stars, and moving the device triggers laughter sounds, offering interactive engagement for infants.

Highlights
  • Rattling sound effects
  • Interactive star animations
  • Baby laughter sound triggers
  • Multiple rattle sounds
  • Simple tap and motion controls
Features
Read full description

It is a rattling sound application that you can play from babies! When the baby cries, such as crying at night, let me hear the rattling tone and stop crying! When you tap the screen, beautiful sound and a lot of stars will come out. Move the terminal left, right, up and down, the baby's laugh sounds. Other rattles are adding more and more! Please try playing by all means!

Screenshots

Contraction Timer & Tracker4 screens
Rattle Toy4 screens

Verdict

The call

The clearest difference is in-app purchases: Rattle Toy at none against Contraction Timer & Tracker's 6. Rattle Toy also leads on ads (none vs shown) and rating (4.8 vs 4.6). Contraction Timer & Tracker's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (50K vs 5). 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. Contraction Timer & Tracker sells 6 in-app purchases, starting at $1.99 per 7 days. Rattle Toy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rattle Toy holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Contraction Timer & Tracker has 50K ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

Contraction Timer & Tracker ships an update fortnightly, Rattle Toy every 4 months. The most recent releases landed on October 15, 2026 and September 28, 2026 respectively.

Scorecard8 real differences · 3 level
Contraction Timer & Tracker versus Rattle Toy: the parameters behind the verdict, then further details
ParameterContraction Timer & TrackerRattle Toy
PriceFreeFree
Rating4.6 (50K ratings)4.8 (5 ratings) — better
Positive reviews68.1% of reviews—
Number of ratings50K — better5
Update frequencyFortnightly — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#100 — better—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.08.0 — better
Further details — not scored
Size192 MB35 MB
Age rating17+4+
DeveloperGoing Merry LLCRyo Takahashi

Customer experience

Contraction Timer & Tracker

All ratings50,021 ratings
Positive91.6%
Neutral5.1%
Negative3.3%
Written reviews568 reviews
Positive68.1%
Neutral7.2%
Negative24.6%

Rattle Toy

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Contraction Timer & Tracker

Reported bugs

2 issues
  • Inconsistent timing between start and end of contractions
  • Syncing issues between phone and Apple Watch

Requested features

5 requests
  • Dark mode or night theme option
  • Ability to pause/resume timing
  • Improved Apple Watch integration
  • Customizable intensity buttons instead of slider
  • Ability to share data/reports with medical providers

Rattle Toy

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Contraction Timer & Tracker

Subscriptions6
  • Weekly Premium$1.997 Days
  • Weekly Premium$2.997 Days
  • Baby Tracker & Contraction Timer$3.997 Days
Show 3 more
  • Yearly Premium$19.991 Year
  • Yearly Premium$29.991 Year
  • Baby Tracker & Contraction Timer$39.991 Year
None

Rattle Toy

No in-app purchases

Questions

Is Contraction Timer & Tracker free?
Contraction Timer & Tracker is free to download, with in-app purchases available.
Is Rattle Toy free?
Rattle Toy is free to download, with no in-app purchases.
Which has better reviews, Contraction Timer & Tracker or Rattle Toy?
Rattle Toy is rated higher. Contraction Timer & Tracker averages 4.6 out of 5 from 50K ratings, while Rattle Toy averages 4.8 from 5 ratings.
Do Contraction Timer & Tracker or Rattle Toy have ads?
Contraction Timer & Tracker shows ads; Rattle Toy does not.
Which is updated more often, Contraction Timer & Tracker or Rattle Toy?
Contraction Timer & Tracker ships an update fortnightly, and Rattle Toy every 4 months. Most recently, Contraction Timer & Tracker was updated on October 15, 2026 and Rattle Toy on September 28, 2026.

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