Comparison

APECS vs Knee Injury Tracker

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

Head to head
About

APECS

Analyze your posture using your device's camera for improved back health and body shape. It offers detailed assessments of various body parts, including specialized tests for symmetry and movement, with options for both automatic and manual tracking.

Highlights
  • Camera-based posture analysis
  • Specialized symmetry tests
  • Range of motion evaluation
  • Automatic and manual modes
  • Detailed PDF reports
  • Posture correction exercises
Features
Read full description

Track your posture regularly for healthy back and perfect body shape- simply using your device camera. APECS analyzes photos from all sides - from head to toe - and includes specialized tests for shoulders, neck, trunk and face symmetry, and many more! Our precise photogrammetric algorithms help you to make accurate posture assessments. Stay motivated on your journey to correct posture and healthy you! • APECS tools for body assessment: - Front, back, two sides - full height. - Golden Ratio - ideal body proportions assessment. - Head, neck, and shoulder specialized evaluation (forward head posture, FHP, flat back etc). - Adam's forward Bend test. - Posture symmetry assessment. - ATSI, POTSI (Anterior and Posterior Trunk Symmetry Index). - Facial symmetry evaluation. - Valgus / varus knee test. - "Range of Motion" evaluation - Custom angles. • Dynamic Posture assessment: - Lateral posture video analysis - Angle and movement evaluation - Video Result + PDF Report - Automatic tracking & Green marker recognition - New tool for health professionals, coaches, trainers, instructors and researchers. • Automatic detection mode Put green markers on a person's body, the app will detect them on photos and give precise results in a matter of seconds. • Manual mode Use APECS without markers. Use semi-manual, where APECS pre-positions landmarks and you adjust them. Or identify each landmark on the photo manually yourself and receive precise results. • Range of motion - a specially developed tool that allows you to create your list of surveys. Measure whatever angles desired between the selected points on the human body, form your own survey patterns and add your own comments to the standard conclusions. This option is specifically designed for advanced users and researchers. • Numerous features and possibilities: - Detailed PDF posture report with text explanation. - Hide the face with a "mask" for privacy - Customize PDF reports (add notes, logos). - Save your results in JPEG or PDF. - Daily tips for posture improvement and pain relief. - Best exercises for posture correction, muscles and core strengthening. • Created to help you - How effective are yoga or pilates exercises for posture improvement, pain relief, core muscle strength, flexibility? - How training or massage sessions influence posture? - Regular posture screening, coupled with a prescribed treatment by a doctor, could enhance progress in correcting posture, maintain motivation and ensure good client-professional communication. - Good posture is essential for health, productivity, good mood. This is especially important for children, teenagers, girls and women, who are predisposed to posture problems. - Designed for professional use, the app is a unique tool to quickly evaluate the anthropometric characteristics of posture. • Developed with doctors, APECS uses research on - Wide range of posture issues (neck and spine issues, leg and foot problems, hunching, slouched shoulders, pelvic tilts, forward head etc). - Physical rehabilitation programs (chiropractors, orthopedics, physiotherapists). - Posture issues in athletic training (sports, weight lifting, endurance training). - Well-being programs (masseurs, yoga and pilates instructors). - Postural defects, trunk symmetry, back evaluation, head position evaluation, neck and shoulder alignment, facial symmetry. • Is it FREE? All main features for postural evaluation are FREE and there are NO ADS. For in-depth insight, try advanced subscriptions with a free trial! • Are photos uploaded online? No, when you use APECS, all your photos and PDF reports remain ONLY on your device. • Progress We continuously improve APECS (support@saneftec.com) Disclaimer: APECS is a helping evaluation tool. Results should be confirmed by a professional doctor. In no case should you use this app as a sole tool for assessment of your posture.

About

Knee Injury Tracker

Features
Read full description

Knee Injury Tracker is an AI-powered Knee Tracker app that transforms how healthcare professionals evaluate movement and monitor knee health—no markers, sensors, or wearables required. Designed for physiotherapists, sports professionals, and rehab experts, Knee Injury Tracker provides real-time, in-depth analysis of key knee movement parameters using just a smartphone camera. 1. AI Knee Tracking and kinematic Analysis Knee Injury Tracker advanced knee tracking technology captures precise knee motion and delivers intuitive, easy-to-understand insights. The app measures: Step length, step time, and knee movement symmetry Cadence and step count Time spent in Stance vs. swing phases Progression of knee recovery over time All data is presented with clean, exportable graphs and detailed PDF reports, making it easy to document patient progress or share with colleagues. Supports a wide range of knee injuries and conditions: ACL (Anterior Cruciate Ligament) PCL (Posterior Cruciate Ligament) MCL (Medial Collateral Ligament) LCL (Lateral Collateral Ligament) Post-operative rehabilitation General knee instability and overuse injuries The app provides objective data to guide treatment planning, track progress, and optimize recovery strategies. 2. Real-Time Range of Motion (ROM) Tracking Assess knee flexibility and mobility with live angular reports: Range of Motion Angular Velocity Ideal for monitoring rehab progress and customizing therapy plans. Your privacy comes first. Terms of Use: [https://flexitrace.com/terms&conditions.html]

Screenshots

APECS4 screens
Knee Injury Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Knee Injury Tracker at every 4 days against APECS's monthly. APECS's advantage is iOS requirement (13.0 vs 17.0). 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. APECS sells 10 in-app purchases, starting at $2.49 per month and Knee Injury Tracker sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

APECS ships an update monthly, Knee Injury Tracker every 4 days. The most recent releases landed on November 11, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
APECS versus Knee Injury Tracker: the parameters behind the verdict, then further details
ParameterAPECSKnee Injury Tracker
PriceFreeFree
Rating1.7 (7 ratings) — better—
Positive reviews18.0% of reviews—
Number of ratings7 — better—
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size206 MB199 MB
Age rating17++4
DeveloperSaneftecFlexiTrace Yazilim Ticaret LIMITED SIRKETI

Bugs and requests

APECS

Reported bugs

13 issues
  • App crashes and closes unexpectedly
  • Manual marking mode is not functional
  • Automatic marking is inaccurate
  • App freezes during analysis
  • App does not open after purchase/update
Show 8 more
  • Video analysis feature is not working
  • Subscription features are locked
  • App closes when adding new photos
  • App crashes on iPhone
  • App does not save data
  • Simetografia feature stuck on loading
  • Cannot edit automatic marking points
  • App not syncing between iOS and Mac

Requested features

15 requests
  • Add clear instructions and tutorials
  • Improve manual marking functionality
  • Enhance automatic marking accuracy
  • Provide a tutorial for app usage
  • Allow recovery of analyses on iPad
Show 10 more
  • Fix issues with PDF creation and emailing
  • Make subscription upgrades possible
  • Allow cancellation of payments
  • Improve posture correction videos
  • Enable synchronization between iOS and Mac
  • Provide access to premium features and pricing
  • Allow generating PDF from saved/analyzed images
  • Enable editing of automatic points
  • Fix the 'simetografia' loading issue
  • Fix spelling errors (e.g., 'asymmetry')

Knee Injury Tracker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

APECS

Subscriptions10
  • APECS Standard: 1-Month Sub7 Days trial$2.491 Month
  • APECS Pro: 1-Month Sub7 Days trial$3.491 Month
  • APECS Pro Plus: 1-Month7 Days trial$5.991 Month
Show 7 more
  • APECS Standard: 3-Month Sub7 Days trial$6.993 Months
  • APECS Pro: 3-Month Sub7 Days trial$7.493 Months
  • APECS Pro Plus: 3-Month7 Days trial$11.003 Months
  • APECS Pro: 6-Month Sub7 Days trial$13.996 Months
  • APECS Pro: 1-Year Sub7 Days trial$21.991 Year
  • APECS Pro Plus: 6-Month7 Days trial$21.996 Months
  • APECS Pro Plus: 1-Year7 Days trial$35.001 Year
7 purchases

Knee Injury Tracker

One-time7
  • 5 Coins$9.99
  • 10 Coins2 variants$17.99
  • 1 Coin$29.99
Show 4 more
  • 5 Coins$69.99
  • 4 Coins$98.99
  • 10 coin pack$119.00
  • 10 Coins$191.99

Questions

Is APECS free?
APECS is free to download, with in-app purchases available.
Is Knee Injury Tracker free?
Knee Injury Tracker is free to download, with in-app purchases available.
Do APECS or Knee Injury Tracker have ads?
Neither APECS nor Knee Injury Tracker shows ads.
Which is updated more often, APECS or Knee Injury Tracker?
APECS ships an update monthly, and Knee Injury Tracker every 4 days. Most recently, APECS was updated on November 11, 2026 and Knee Injury Tracker on October 30, 2026.

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