Comparison

STI Tx Guide vs SD Getting To Zero

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

Head to head
About

STI Tx Guide

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
Read full description

The new app offers quick and easy access to streamlined STI prevention, diagnosis, and treatment recommendations. The user-friendly interface includes more clinical care guidance, sexual history resources, patient materials, and other features to assist with patient management. The STI Treatment (Tx) Guidelines mobile app serves as a quick reference guide for doctors and related parties on the identification of and treatment for sexually transmitted diseases (STDs). The full STI Treatment Guidelines (cdc.gov) can be accessed at https://www.cdc.gov/std/treatment-guidelines/default.htm. The guidelines provide current evidence-based prevention, diagnostic and treatment recommendations that replace the 2015 guidance. The recommendations are intended to be a source for clinical guidance. Healthcare providers should always assess patients based on their clinical circumstances and local burden. DISCLAIMER THE MATERIALS EMBODIED IN THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE CENTERS FOR DISEASE CONTROL AND PREVENTION (CDC) OR THE UNITED STATES (U.S.) GOVERNMENT BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, LOSS OF PROFIT, LOSE OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF THIRD PARTIES, WHETHER OR NOT CDC OR THE U.S. GOVERNMENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.

About

SD Getting To Zero

Read full description

The Getting To Zero app is a collaboration between the HIV, STD and Hepatitis Branch of Public Health Services and 2-1-1 San Diego. The app is a free, multi-lingual resource designed to increase access to HIV related resource information. App users can search and then connect to resources across San Diego County from any mobile device. The app caters to user needs by location, language, services, transportation routes and much more. Programs that are included support HIV prevention, care and treatment as well as basic needs such as food, housing, and transportation and resources for behavioral and emotional health.

Screenshots

STI Tx Guide4 screens
SD Getting To Zero3 screens

Verdict

The call

The clearest difference is update cadence: STI Tx Guide at every 2 months against SD Getting To Zero's every 12 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

STI Tx Guide ships an update every 2 months, SD Getting To Zero every 12 months. The most recent releases landed on August 28, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 9 level
STI Tx Guide versus SD Getting To Zero: the parameters behind the verdict, then further details
ParameterSTI Tx GuideSD Getting To Zero
PriceFreeFree
Rating3.5 (36 ratings) — better—
Positive reviews35.7% of reviews—
Number of ratings36 — better—
Update frequencyEvery 2 months — betterEvery 12 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size36 MB21 MB
Age rating12+12+
DeveloperCenters For Disease Control and PreventionCounty of San Diego

In-app purchases

None

STI Tx Guide

No in-app purchases

None

SD Getting To Zero

No in-app purchases

Questions

Is STI Tx Guide free?
STI Tx Guide is free to download, with no in-app purchases.
Is SD Getting To Zero free?
SD Getting To Zero is free to download, with no in-app purchases.
Do STI Tx Guide or SD Getting To Zero have ads?
Neither STI Tx Guide nor SD Getting To Zero shows ads.
Which is updated more often, STI Tx Guide or SD Getting To Zero?
STI Tx Guide ships an update every 2 months, and SD Getting To Zero every 12 months. Most recently, STI Tx Guide was updated on August 28, 2026 and SD Getting To Zero on September 9, 2026.

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