Comparison

Perseus vs TracPatch Knee HCP

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

Head to head
About

Perseus

Features
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Perseus guides the surgeon during femoral resection in TKA. Data acquired through a Bluetooth LE inertial sensor provide angle information for a better prosthesis alignment. All in three simple steps: -Press Start and select Left or Right limb -Start data Acquisition -Follow app instruction on Cutting guide positioning Visit our website for further information: http://www.smartperseus.com/ Perseus is an Orthokey Italia srl product: http://www.orthokey.com/

About

TracPatch Knee HCP

Features
Read full description

TracPatch technology is here to redefine the way health care is delivered: through smart connected solutions, TracPatch joins the health care provider, patient, and payer with objective data providing predictive outcomes and care. TracPatchβ„’ is revolutionizing evidence-based care in orthopedics. TracPatch is a cutting-edge remote monitoring device designed to make total joint replacement recovery easily accessible, connected, and more predictable. TracPatch is a 24/7 passive and continuous remote monitoring system that captures a patient’s key daily activities, such as range of motion progress and ambulation. TracPatch provides the healthcare provider anytime, anywhere insight into a patient’s recovery, allowing for immediate care adjustments and the ability to get ahead of recovery issues, empowering patients and healthcare providers with real time recovery efficiency. We believe engaging the patient is key to a successful outcome. TracPatch creates a data driven connected environment for all stakeholders to achieve success.

Screenshots

TracPatch Knee HCP4 screens

Verdict

The call

The clearest difference is device support: TracPatch Knee HCP at 3 against Perseus's 1. Perseus's advantage is iOS requirement (9.3 vs 12.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Perseus ships an update every 3 months, TracPatch Knee HCP every 2 months. The most recent releases landed on September 20, 2026 and October 2, 2026 respectively.

Scorecard2 real differences Β· 4 level
Perseus versus TracPatch Knee HCP: the parameters behind the verdict, then further details
ParameterPerseusTracPatch Knee HCP
PriceFreeFree
Update frequencyEvery 3 monthsEvery 2 months β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod β€” better
Requires iOS9.3 β€” better12.0
Further details β€” not scored
Size71 MB50 MB
Age rating17+17+
DeveloperOrthokey Italia s.r.l.Consensus Orthopedics

In-app purchases

None

Perseus

No in-app purchases

None

TracPatch Knee HCP

No in-app purchases

Questions

Is Perseus free?
Perseus is free to download, with no in-app purchases.
Is TracPatch Knee HCP free?
TracPatch Knee HCP is free to download, with no in-app purchases.
Do Perseus or TracPatch Knee HCP have ads?
Neither Perseus nor TracPatch Knee HCP shows ads.
Which is updated more often, Perseus or TracPatch Knee HCP?
Perseus ships an update every 3 months, and TracPatch Knee HCP every 2 months. Most recently, Perseus was updated on September 20, 2026 and TracPatch Knee HCP on October 2, 2026.

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