Comparison

PJI Database vs OrthoAxis

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

Head to head
About

PJI Database

Features
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PJI Database is a database for iPhone and iPad to store the most relevant data about patients with prosthetic joint infections. It has been developed with the aid of members from the European Study Group of Implant Associated Infections (ESGIAI) of the European Society of Clinical Microbiology and Infectious Diseases (ESCMID). The database contains selected variables that describe the clinical characteristics, the surgical and the antibiotic treatment, as well as the outcome of each episode. All the data is stored locally and can be exported to a CSV file for further processing with any statistical package, or to share it with other colleagues. The data input process has been adapted to touch interfaces so that all numeric values and other options can be selected by simply touching or sliding over controls. All changes are automatically saved as they are made. The app includes tools to calculate the Charlson score, the Child-Pugh score and the MELD score. Total days of hospital stay are also calculated. -- NOTE: For privacy reasons, the patient hospital code (aka medical record number) is not stored in the database. Instead, a hash of this number is used to track episodes for the same patient, and to make them searchable by this code.

About

OrthoAxis

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The Problem: You have a challenging case coming up and you know there's a product somewhere out there that you need. Where do you find it? Who can get it to you? Are there better options? What techniques do you use? Have your colleagues used it before? The Solution: OrthoAxis™ is the no cost answer to all of these questions. We were founded on the experience and frustrations of an upper extremity surgeon who was looking for the same answers. After spending 6 weeks researching and calling reps looking for a specific orthopaedic product, he was told the product had been discontinued. He knew there had to be a better way and realized that there was no single place to find all of the orthopaedic information he needed. OrthoAxis™ brings all of the players together in one place, so there is no more time wasted hunting down products, reps, and information. If you need information and we don't have it, we will find it! OrthoAxis™: Everything Orthopaedic in One, Easy Location. • Access help from colleagues. • Archive and share important cases through the forum. • Connect to the right rep/company and find surgical technique guides 24/7. • Research, compare, review, rate orthopaedic products/reps, and save contact information for online messaging. • Find links to news, journals, and orthopaedic society pages. • Find a job or register for a conference, on your time. What you need, when you need it! Join us at www.doortoaxis.com and create your free account today!

Screenshots

PJI Database4 screens
OrthoAxis4 screens

Verdict

The call

The clearest difference is update cadence: PJI Database at every 4 months against OrthoAxis's every 14 months. PJI Database also leads on iOS requirement (10.0 vs 12.4). 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

PJI Database ships an update every 4 months, OrthoAxis every 14 months. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

Scorecard2 real differences · 4 level
PJI Database versus OrthoAxis: the parameters behind the verdict, then further details
ParameterPJI DatabaseOrthoAxis
PriceFreeFree
Update frequencyEvery 4 months — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.4
Further details — not scored
Size17 MB5 MB
Age rating17+17+
DeveloperGARMENMED, SCPOrthoAxis, LLC

In-app purchases

None

PJI Database

No in-app purchases

None

OrthoAxis

No in-app purchases

Questions

Is PJI Database free?
PJI Database is free to download, with no in-app purchases.
Is OrthoAxis free?
OrthoAxis is free to download, with no in-app purchases.
Do PJI Database or OrthoAxis have ads?
Neither PJI Database nor OrthoAxis shows ads.
Which is updated more often, PJI Database or OrthoAxis?
PJI Database ships an update every 4 months, and OrthoAxis every 14 months. Most recently, PJI Database was updated on September 19, 2026 and OrthoAxis on September 10, 2026.

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