# STI Tx Guide vs Motion

The clearest difference is rating: Motion at 4.1 against STI Tx Guide's 3.5. Motion also leads on update cadence (monthly vs every 8 months) and review sentiment (60% vs 36%). STI Tx Guide's advantage is in-app purchases (none vs 4). On price, ratings volume and ads there is nothing between them.

Both are free to download. Motion sells 4 in-app purchases, starting at $1.99 per month. STI Tx Guide asks for nothing beyond the download.

Motion holds the better App Store score, 4.1 against 3.5. Both are backed by a comparable volume of ratings — 36 and 31 respectively. Written reviews point the same way: 36% of STI Tx Guide's written reviews are positive against 60% of Motion's.

STI Tx Guide ships an update every 8 months, Motion monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | STI Tx Guide | Motion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (36 ratings)](https://appshunter.io/ios/app/sti-tx-guide/id655206856/reviews) | **[4.1 (31 ratings)](https://appshunter.io/ios/app/motion-labor-and-birth-tool/id6479435685/reviews)** |
| Number of ratings | **36** | 31 |
| Positive reviews | 35.7% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#177** |
| Size | 31 MB | 63 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [Bundle Birth, A Nursing Corporation](https://appshunter.io/developer/1724923251) |

## What reviewers say

### STI Tx Guide

[App page](https://appshunter.io/ios/app/sti-tx-guide/id655206856)

Provides healthcare professionals with up-to-date, evidence-based recommendations for the prevention, diagnosis, and treatment of sexually transmitted infections. Features include clinical care guidance, sexual history resources, and patient materials for effective patient management.

**Highlights:** STI prevention recommendations, Diagnosis guidance, Treatment protocols, Clinical care assistance, Sexual history resources, Patient management tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Motion

[App page](https://appshunter.io/ios/app/motion-labor-and-birth-tool/id6479435685)

**Currently charting:** #177 Top Grossing · Medical (US App Store)

This app assists birth professionals by providing patient-specific recommendations, trauma-informed techniques, and science-backed coping tools to improve labor outcomes and promote vaginal birth. It offers advanced position guidance, labor dystocia support, and personal progress tracking to elevate care.

**Highlights:** Virtual Labor Position Guide, Advanced Position Recommendations, Patient-Centered Care Support, Labor Dystocia Guidance, Personal Practice Dashboard, Data Security (HIPAA Compliant)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free (1 month) | $1.99 | per month |
| Ad-Free (12 month) | $14.99 | per year |
| 1 month | $19.99 | per month |
| 12 month | $199.99 | per year |


## Frequently asked questions

### Is STI Tx Guide free?

STI Tx Guide is free to download, with no in-app purchases.

### Is Motion free?

Motion is free to download, with in-app purchases available.

### Which has better reviews, STI Tx Guide or Motion?

Motion is rated higher. STI Tx Guide averages 3.5 out of 5 from 36 ratings, while Motion averages 4.1 from 31 ratings.

### Do STI Tx Guide or Motion have ads?

Neither STI Tx Guide nor Motion shows ads.

### Which is updated more often, STI Tx Guide or Motion?

STI Tx Guide ships an update every 8 months, and Motion monthly. Most recently, STI Tx Guide was updated on November 1, 2026 and Motion 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.*