Comparison

Implant Identifier vs ACL

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

Head to head
About

Implant Identifier

Instantly identify orthopedic and spine implants from X-rays using AI. This app helps medical professionals recognize unknown implants, access a community of experts, and contribute to a growing library of implant data. Features include AI identification for hips, a community feed for assistance, and a filterable implant library.

Highlights
  • AI-Identify for Hips
  • Community Feed for Expert Help
  • Filterable Implant Library
  • Submit New Implants
  • My Implants History
  • X-ray Recognition
Features
Read full description

Implant Identifier is the fastest way to identify unknown orthopedic and spine implants from x-ray. Now you can instantly identify spine, hip, knee, and shoulder implants with AI. Join our mission to create the world’s most intelligent implant identification platform—powered by AI, built by the community. The new app includes: AI-Identify for Spine, Hip, Knee, and Shoulder – Snap an x-ray and let AI suggest the closest matching implants. Home Feed (Community) – Can't find a match? Ask expert's in our community of surgeons and reps worldwide. Library with Filters – Browse and filter hundreds of common spine and orthopedic implant x-rays. Submit New Implants – Contribute to the growing AI-library and help others in the community. My Implants- Access your previously identified and unidentified implants and share them with your colleagues.

About

ACL

Features
Read full description

ACL-X -- The Smartphone App for ACL Surgery! This App was developed for knee surgeons performing anterior cruciate ligament (ACL) reconstruction and using intraoperative fluoroscopy to increase precision of bone tunnel placement. By means of supporting lines that you can overlay virtually over the X-ray photograph in the app, the app can calculate the relative distance of the target point for the k-wire for a femoral or tibial surgery. In the medical literature, femoral measurement of a radiographic image is known as quadrant method by Bernard and Hertel. It may help knee surgeons identify the ideal position for bone tunnel placement during ACL reconstruction. During the operative procedure, place a guide wire (or the tip of an microfracure awl) into the center of the femoral insertion area using your standard operative set up. Alternatively, you may may advance the k-wire in the center of the projected bone tunnel forward penetrating the skin on the lateral side of the femur so the end of the wire is flush with the femoral cortex of the insertion. The app will display the relative ratio of your target point in reference to the outlines of the bone of the femoral condyles. The measurement values relate to the relative distance of the target point of the most posterior and proximal border of the condyles. Tibia measurement of a radiographic image has been described by Stäubli und Rauschning. It may help knee surgeons identify the ideal position of the tibial bone tunnel during ACL reconstruction. Place a guide pin into the center of the projected tibial bone tunnel using a drill guide in a normal fashion. The guide pin may intrude the joint beyond the cortical edge of the ACL footprint. This app will display the relative distance (in percent) of the entry point of the guide wire into the joint in relation to the total anterior posterior (AP) distance of the proximal tibia (100 %).

Screenshots

Implant Identifier4 screens
ACL4 screens

Verdict

The call

The clearest difference is in-app purchases: Implant Identifier at none against ACL's 3. Implant Identifier also leads on update cadence (every 3 weeks vs every 8 months). ACL's advantage is iOS requirement (10.2 vs 15.5). On price, ads 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. ACL sells 3 one-off in-app purchases. Implant Identifier asks for nothing beyond the download.

UpkeepUpdate frequency

Implant Identifier ships an update every 3 weeks, ACL every 8 months. The most recent releases landed on November 6, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Implant Identifier versus ACL: the parameters behind the verdict, then further details
ParameterImplant IdentifierACL
PriceFreeFree
Rating4.7 (278 ratings) — better—
Positive reviews64.5% of reviews—
Number of ratings278 — better—
Update frequencyEvery 3 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.510.2 — better
Further details — not scored
Size128 MB38 MB
Age rating12+17+
DeveloperDevise HealthLinova Software GmbH

In-app purchases

None

Implant Identifier

No in-app purchases

3 purchases

ACL

One-time3
  • 1 Credit$0.99
  • 10 Credits$8.99
  • 50 Credits$24.99

Questions

Is Implant Identifier free?
Implant Identifier is free to download, with no in-app purchases.
Is ACL free?
ACL is free to download, with in-app purchases available.
Do Implant Identifier or ACL have ads?
Neither Implant Identifier nor ACL shows ads.
Which is updated more often, Implant Identifier or ACL?
Implant Identifier ships an update every 3 weeks, and ACL every 8 months. Most recently, Implant Identifier was updated on November 6, 2026 and ACL on October 26, 2026.

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