# BackSCNR vs PJKPredict

The clearest difference is update cadence: PJKPredict at every 2 days against BackSCNR's every 2 months. BackSCNR's advantage is iOS requirement (15.4 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for BackSCNR against 5.0 for PJKPredict. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

BackSCNR ships an update every 2 months, PJKPredict every 2 days. The most recent releases landed on October 9, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | BackSCNR | PJKPredict |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/backscnr/id1629230768/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/pjkpredict-spine-risk-radar/id6809026331/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 42 MB | 4 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [BackSCNR Inc.](https://appshunter.io/developer/1629230770) | [ABDI ALEX MOHIT](https://appshunter.io/developer/6790217251) |

## What reviewers say

### BackSCNR

[App page](https://appshunter.io/ios/app/backscnr/id1629230768)

This radiation-free tool uses surface topography to screen and monitor scoliosis in adolescents. It captures 3D torso scans, analyzes asymmetries, and estimates curve angles to support clinical decision-making.

**Highlights:** Radiation-free scoliosis screening, 3D torso capture with TrueDepth or Structure Sensor, Asymmetry analysis and curve angle estimation, Supports clinical decision-making, Rapid analysis via secure web platform

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PJKPredict

[App page](https://appshunter.io/ios/app/pjkpredict-spine-risk-radar/id6809026331)

This application provides orthopedic spine surgeons with advanced biomechanical simulation and clinical decision support. It offers detailed scoring systems and real-time visualization tools to predict mechanical failure probabilities and optimize surgical planning for adult spinal deformity.

**Highlights:** Lafage-ISSG Clinical Score evaluation, Yilgor Global Alignment and Proportion (GAP) Score analysis, 120 FPS Sagittal Spine Canvas for real-time morphing, Dynamic UIV Stress Heatmap for vertebrae comparison, Adaptive Evidence Calibration Engine for predictive models

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BackSCNR free?

BackSCNR is free to download, with no in-app purchases.

### Is PJKPredict free?

PJKPredict is free to download, with no in-app purchases.

### Which has better reviews, BackSCNR or PJKPredict?

BackSCNR and PJKPredict are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do BackSCNR or PJKPredict have ads?

Neither BackSCNR nor PJKPredict shows ads.

### Which is updated more often, BackSCNR or PJKPredict?

BackSCNR ships an update every 2 months, and PJKPredict every 2 days. Most recently, BackSCNR was updated on October 9, 2026 and PJKPredict on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*