Comparison

Bump Pulse vs Obi by Dr. Sterling

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

Head to head
About

Bump Pulse

This app helps expecting parents track labor contractions with a simple, one-tap timer. It provides real-time progress updates and helpful summaries to identify active labor patterns. Designed for ease of use during a critical time, it offers offline functionality and integration with smart devices.

Highlights
  • One-tap contraction timer
  • Smart timeline for labor trends
  • Real-time progress sharing
  • Offline functionality
  • Siri and App Shortcut integration
  • Apple Watch support
  • Live Activity display
Features
Read full description

Track contractions with confidence. Simple, smart, and built for labor. Bump Pulse is a fast and accurate contraction timer made for expecting parents. Log each contraction with a single tap and instantly view duration, frequency, and patterns that help you recognize active labor. Stay connected and supported. Share your real-time progress with your partner, doula, or midwife, no matter where they are. Why choose Bump Pulse? • One-tap contraction timer with no setup • Clean, distraction-free design for focus during labor • Smart timeline to track duration, intervals, and labor trends • Real-time sharing with your birth partner or care team • Helpful summaries to know when it may be time to go • Works offline with no account required Made to be easy to reach when you need it most • Start or stop the timer with Siri • Use App Shortcuts for even faster access • Add widgets with quick buttons to open the app fast • Start or stop from the Lock Screen without unlocking your phone • Use Live Activity to keep the timer visible and quickly jump back into the app • Track contractions from Apple Watch, including start and stop controls, quick stats, and recent contractions No ads. No subscriptions. Just clarity, calm, and control. Bump Pulse was built to give you peace of mind, so you can focus on what truly matters: bringing your baby into the world. Bump Pulse is not a medical device and does not replace the advice of your midwife or doctor.

About

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.

Highlights
  • Personalized pregnancy and toddler guidance
  • Expert advice from board-certified ObGyn
  • Weekly guidance updates
  • Research-backed answers
  • Supportive community forum
Features
Currently charting
Read full description

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

Screenshots

Bump Pulse4 screens
Obi by Dr. Sterling3 screens

Verdict

The call

Bump Pulse and Obi by Dr. Sterling both sit at 4.7 stars, but that hides the real split: 96% of Obi by Dr. Sterling's written reviews are positive against 81% of Bump Pulse's. Obi by Dr. Sterling also leads on chart position (#89 vs unranked) and iOS requirement (15.1 vs 18.0). Bump Pulse's advantage is update cadence (weekly vs every 2 weeks). On price, rating, ratings volume and ads 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. Bump Pulse sells 1 one-off in-app purchase and Obi by Dr. Sterling sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Bump Pulse against 4.8 for Obi by Dr. Sterling. Both are backed by a comparable volume of ratings — 80 and 38 respectively. Written reviews are what separate them: 81% of Bump Pulse's written reviews are positive against 96% of Obi by Dr. Sterling's.

UpkeepUpdate frequency

Bump Pulse ships an update weekly, Obi by Dr. Sterling every 2 weeks. Both last shipped on October 30, 2026.

Scorecard4 real differences · 7 level
Bump Pulse versus Obi by Dr. Sterling: the parameters behind the verdict, then further details
ParameterBump PulseObi by Dr. Sterling
PriceFreeFree
Rating4.7 (80 ratings)4.8 (38 ratings) — better
Positive reviews81.3% of reviews96.2% of reviews — better
Number of ratings80 — better38
Update frequencyWeekly — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreeFree
Best chart rank—#89 — better
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size59 MB56 MB
Age rating+1217+
DeveloperAURIMAS PRUSOVASThe Sterling Life LLC

Customer experience

Bump Pulse

All ratings80 ratings
Positive92.5%
Neutral1.3%
Negative6.3%
Written reviews16 reviews
Positive81.3%
Neutral0.0%
Negative18.8%

Obi by Dr. Sterling

All ratings37 ratings
Positive94.6%
Neutral0.0%
Negative5.4%
Written reviews26 reviews
Positive96.2%
Neutral0.0%
Negative3.8%

In-app purchases

1 purchases

Bump Pulse

One-time1
  • Birth Certificate$5.99
4 purchases

Obi by Dr. Sterling

Subscriptions4
  • Tier 1 Monthly$7.991 Month
  • Monthly Subscription7 Days trial$23.991 Month
  • Tier 1 Yearly$79.991 Year
Show 1 more
  • Yearly Subscription7 Days trial$239.991 Year

Questions

Is Bump Pulse free?
Bump Pulse is free to download, with in-app purchases available.
Is Obi by Dr. Sterling free?
Obi by Dr. Sterling is free to download, with in-app purchases available.
Which has better reviews, Bump Pulse or Obi by Dr. Sterling?
Obi by Dr. Sterling is rated higher. Bump Pulse averages 4.7 out of 5 from 80 ratings, while Obi by Dr. Sterling averages 4.8 from 38 ratings.
Do Bump Pulse or Obi by Dr. Sterling have ads?
Neither Bump Pulse nor Obi by Dr. Sterling shows ads.
Which is updated more often, Bump Pulse or Obi by Dr. Sterling?
Bump Pulse ships an update weekly, and Obi by Dr. Sterling every 2 weeks. Most recently, Bump Pulse was updated on October 30, 2026 and Obi by Dr. Sterling on October 30, 2026.

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