Comparison

Contraction Tracker & Timer vs Ring Sizer

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

Head to head
About

Contraction Tracker & Timer

Features
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Time your labor contractions with one tap. Start when a contraction begins, stop when it ends, and the app tracks how long each one lasts and how far apart they are. See your pattern at a glance: count, average duration and average interval for the last hour, plus a clear check for the 5-1-1 pattern (contractions about 5 minutes apart, lasting about 1 minute, for 1 hour). Calm, simple and easy to use with one hand, day or night. WHAT YOU CAN DO โ€ข Start and stop each contraction with a single big button โ€ข Live timer with a calm breathing animation while a contraction is running โ€ข Time since your last contraction โ€ข Last-hour summary: number of contractions, average duration and interval โ€ข 5-1-1 pattern card that tells you when your contractions match the guideline โ€ข Rate the intensity of each contraction from 1 to 5 โ€ข History of the last 24 hours, grouped by day โ€ข Light and dark mode Timing is always free and unlimited. PREMIUM โ€ข Live timer on your Lock Screen and in the Dynamic Island โ€ข Labor report to share with your doctor or midwife โ€ข Alert when your contractions match the 5-1-1, 4-1-1 or 3-1-1 pattern โ€ข Charts of duration and interval over time โ€ข Full history, beyond the last 24 hours โ€ข Separate sessions to keep false alarms apart from labor โ€ข Export your history as a CSV file Premium is a one-time purchase or a weekly subscription. This app is a timing tool and does not give medical advice. Always follow the guidance of your doctor, midwife or birth center, and seek care right away if something feels wrong. Privacy Policy: https://www.enduranceapptitude.com/apps/contraction-tracker-timer/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Ring Sizer

Features
Read full description

Ring Sizer is a ring size finder, ring size chart, and ring size converter that makes ring measurement simple. Use it for engagement rings, wedding bands, gifts, and resizing. Measure a ring by matching an on screen circle to the inner edge of a ring you already own. Measure a finger by matching the finger width guide with the slider. Ring Sizer shows the size in millimeters and in international sizing systems. Save each size with a custom name plus hand and finger so you always know what fits. Keep your personal collection of ring sizes for quick reference whenever you shop for jewelry. KEY FEATURES 1. On screen ring sizer with fine size steps. 2. Finger sizer with a simple slider and visual guide. 3. Ring size converter and ring size chart in one place. 4. International sizes for US and Canada, UK and Australia, EU and ISO, Japan and China. 5. Diameter and circumference in millimeters for each size. 6. Save and organize sizes with hand and finger labels. HOW TO USE 1. Choose Ring Sizer or Finger Sizer. 2. Adjust the size until it matches your ring or finger. 3. Read your size and save it for later. 4. Use the converter to compare international sizes. Privacy Policy: https://www.termsfeed.com/live/fc808116-3078-4718-868d-438e84d52d8e Terms of Use: https://docs.google.com/document/d/19o7zkRrlYQg_gsBCmlnh4Upv6YxiRavHvFCXephKJrQ/edit?usp=sharing

Screenshots

Contraction Tracker & Timer4 screens
Ring Sizer4 screens

Verdict

The call

The clearest difference is update cadence: Contraction Tracker & Timer at every 6 weeks against Ring Sizer's every 8 months. Ring Sizer's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.5). On price, ads and in-app purchases 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 Tracker & Timer sells 7 in-app purchases, starting at $0.99 per 7 days and Ring Sizer sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Contraction Tracker & Timer ships an update every 6 weeks, Ring Sizer every 8 months. The most recent releases landed on November 5, 2026 and October 24, 2026 respectively.

Scorecard3 real differences ยท 3 level
Contraction Tracker & Timer versus Ring Sizer: the parameters behind the verdict, then further details
ParameterContraction Tracker & TimerRing Sizer
PriceFreeFree
Update frequencyEvery 6 weeks โ€” betterEvery 8 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS18.515.1 โ€” better
Further details โ€” not scored
Size19 MB45 MB
Age rating4+4+
DeveloperLucas DiazAndrii Kulchytskyi

In-app purchases

7 purchases

Contraction Tracker & Timer

Subscriptions3
  • Premium$0.997 Days
  • Premium Weekly$2.997 Days
  • Premium7 Days trial$2.991 Month
One-time4
  • Premium Lifetime$3.99
  • Lifetime Premium (offer)$4.99
  • Premium Lifetime$5.99
Show 1 more
  • Premium Lifetime$9.99
2 purchases

Ring Sizer

Subscriptions2
  • Ring Sizer Weekly with 3 days trial3 Days trial$2.997 Days
  • Ring Sizer Yearly$14.991 Year

Questions

Is Contraction Tracker & Timer free?
Contraction Tracker & Timer is free to download, with in-app purchases available.
Is Ring Sizer free?
Ring Sizer is free to download, with in-app purchases available.
Do Contraction Tracker & Timer or Ring Sizer have ads?
Neither Contraction Tracker & Timer nor Ring Sizer shows ads.
Which is updated more often, Contraction Tracker & Timer or Ring Sizer?
Contraction Tracker & Timer ships an update every 6 weeks, and Ring Sizer every 8 months. Most recently, Contraction Tracker & Timer was updated on November 5, 2026 and Ring Sizer on October 24, 2026.

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