# Bump Pulse vs Obi by Dr. Sterling

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.

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.

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.

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

## The numbers

| Metric | Bump Pulse | Obi by Dr. Sterling |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (80 ratings)](https://appshunter.io/ios/app/bump-pulse-contraction-timer/id6745621181/reviews) | **[4.8 (38 ratings)](https://appshunter.io/ios/app/obi-by-dr-sterling/id6748208571/reviews)** |
| Number of ratings | **80** | 38 |
| Positive reviews | 81.3% of reviews | **96.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | Free |
| Best chart rank | — | **#89** |
| Size | 59 MB | 56 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | +12 | 17+ |
| Developer | [AURIMAS PRUSOVAS](https://appshunter.io/developer/1813197365) | [The Sterling Life LLC](https://appshunter.io/developer/1824610670) |

## What reviewers say

### Bump Pulse

[App page](https://appshunter.io/ios/app/bump-pulse-contraction-timer/id6745621181)

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:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Birth Certificate | $5.99 | one-time |


### Obi by Dr. Sterling

[App page](https://appshunter.io/ios/app/obi-by-dr-sterling/id6748208571)

**Currently charting:** #89 Top Grossing · Medical (US App Store)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tier 1 Monthly | $7.99 | per month |
| Monthly Subscription | $23.99 | per month |
| Tier 1 Yearly | $79.99 | per year |
| Yearly Subscription | $239.99 | per year |

**What reviewers like**

- 👍 Comprehensive information
- 👍 User-friendly app
- 👍 Great resource for new parents
- 👍 Positive support for parents
- 👍 Clear and useful information


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*