Obi by Dr. Sterling vs Contraction Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Obi by Dr. Sterling
This app provides personalized pregnancy and toddler guidance from a board-certified ObGyn and expert team. It offers research-backed answers to common concerns, weekly updates, and a supportive community for science-minded women.
- Personalized pregnancy and toddler guidance
- Expert advice from board-certified ObGyn
- Weekly guidance updates
- Research-backed answers
- Supportive community forum
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Pregnancy support that actually meets you where you are. Pregnancy comes with endless questions, 3am worries, and a healthcare system that wasn't built to give you the time or answers you deserve. Obi was created by board-certified ObGyn Dr. Noa Sterling to change that. As both an OB and a mom, Dr. Sterling experienced firsthand the gap between what women need during pregnancy and what they actually get. Every part of Obi is designed to fill that gap — so you feel informed, supported, and cared for at every stage. Because good pregnancy support shouldn't just sound reassuring. It should actually help. Inside the app, you'll get: Ask Obi — Your ObGyn-Powered AI Stop Googling. Ask Obi instead. Get trusted, evidence-based answers to your real pregnancy questions — any time of day or night — grounded in Dr. Sterling's clinical expertise. Whether you're wondering if your symptoms are normal or navigating a hard decision, support is always within reach. Weekly, Personalized Pregnancy Content Access hundreds of expert articles, videos, and bite-sized education tailored to exactly where you are in your journey. From TTC through postpartum, the right information arrives exactly when you need it — no searching required. WellBeing Tools Built for the Pregnant Brain Neuroscience-backed mindfulness tools designed to stop worry spirals before they start. Simple, calming, and actually usable at 2am. Community You'll Actually Want to Be Part Of Connect with a private community of science-minded women who get it. Ask questions, share experiences, and find your people — no judgment, just honest pregnancy conversation. Built for Every Stage TTC, pregnancy, postpartum, or navigating loss — Obi meets you where you are, with content and support that evolves with your journey. Obi users report: 96% feel more confident in their pregnancy decisions 93% say Obi's AI reduced their anxiety 89% use Dr. Sterling's WellBeing tools daily SUBSCRIPTION PRICING AND TERMS Try Obi free for 7 days. After your trial, choose the plan that works for you — monthly or annual — both of which give you full access to all app features and content for the duration of your active subscription. Payment will be charged to your account at the end of your free trial. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. You may manage or cancel your subscription at any time in your Account Settings. Terms of Service: https://members.sterlingparents.com/terms Privacy Policy: https://sterlingparents.com/pages/privacy-policy
Contraction Timer
Effortlessly time labor contractions with a single tap from your Lock Screen, Apple Watch, or hands-free via Siri. This free app helps you track duration, intervals, and frequency to identify patterns and know when to seek medical help.
- One-tap contraction tracking
- Apple Watch app
- Lock Screen & Home Screen widgets
- Siri hands-free timing
- Clear timeline view
- Smart regularity notifications
- Private and secure
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Completely FREE to use — no ads, no paywalls Take the stress out of timing contractions. With Labora Contraction Timer, you can track every contraction with just one tap — right from your Lock Screen, Apple Watch, or even hands-free with Siri. No fumbling when the moment hits. From the first gentle tightenings to active labor, Labora keeps you calm, confident, and in control. Track how long contractions last, how far apart they are, and how often they come — so you can see patterns and know when it’s time to call your midwife or head to the hospital. Why parents choose Labora: - One-tap tracking — start & stop instantly - Apple Watch app for quick timing on your wrist - Lock Screen & Home Screen widgets for fast access - Siri support for hands-free timing - Clear timeline showing duration & intervals - Smart notifications when contractions are regular - Private & secure — no account, no data uploads Created by a mom, for moms.
Screenshots
Verdict
The clearest difference is chart position: Obi by Dr. Sterling at #161 against Contraction Timer's unranked. Obi by Dr. Sterling also leads on iOS requirement (15.1 vs 18.0). On price, rating, review sentiment and ratings volume 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. Obi by Dr. Sterling sells 4 in-app purchases, starting at $7.99 per month and Contraction Timer sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Contraction Timer holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 38 and 101 respectively. Written reviews point the same way: 96% of Obi by Dr. Sterling's written reviews are positive against 100% of Contraction Timer's.
Obi by Dr. Sterling ships an update every 2 weeks, Contraction Timer every 3 weeks. Both last shipped on October 24, 2026.
| Parameter | Obi by Dr. Sterling | Contraction Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (38 ratings) | 5.0 (101 ratings) — better |
| Positive reviews | 96.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 38 | 101 — better |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | Free |
| Best chart rank | #161 — better | — |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 56 MB | 22 MB |
| Age rating | 17+ | 4+ |
| Developer | The Sterling Life LLC | Panittha Suwannajang |
Customer experience
Obi by Dr. Sterling
Contraction Timer
In-app purchases
Obi by Dr. Sterling
- Tier 1 Monthly$7.991 Month
- Monthly Subscription7 Days trial$23.991 Month
- Tier 1 Yearly$79.991 Year
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- Yearly Subscription7 Days trial$239.991 Year
Contraction Timer
- Optional Support - Small$3.49
- Optional Support - Medium$13.00
- Optional Support - Large$35.00
Questions
Is Obi by Dr. Sterling free?
Is Contraction Timer free?
Which has better reviews, Obi by Dr. Sterling or Contraction Timer?
Do Obi by Dr. Sterling or Contraction Timer have ads?
Which is updated more often, Obi by Dr. Sterling or Contraction Timer?
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