# SagittalMeter Lite vs CongruenceIndexApp

The clearest difference is price: SagittalMeter Lite at Free against CongruenceIndexApp's $0.99. SagittalMeter Lite also leads on iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

SagittalMeter Lite is free to download; CongruenceIndexApp costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SagittalMeter Lite ships an update every 11 months, CongruenceIndexApp every 9 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SagittalMeter Lite | CongruenceIndexApp |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sagittalmeter-lite/id963720300/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 9 months** |
| Monetization | Free | — |
| Size | 32 MB | 1 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 12+ | 17+ |
| Developer | [Jean-Charles LE HUEC](https://appshunter.io/developer/1880028964) | [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877) |

## What reviewers say

### SagittalMeter Lite

[App page](https://appshunter.io/ios/app/sagittalmeter-lite/id963720300)

This application assists medical practitioners in measuring crucial sagittal balance parameters directly from sagittal X-rays. It helps analyze spine problems and pre-operative planning by calculating pelvic incidence, pelvic tilt, and sacral slope.

**Highlights:** Measure sagittal balance parameters, Directly use phone on X-rays, Calculate Pelvic Incidence (PI), Calculate Pelvic Tilt (PT), Calculate Sacral Slope (SS), Aid in spine problem analysis

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

**In-app purchases:** none


### CongruenceIndexApp

[App page](https://appshunter.io/ios/app/congruenceindexapp/id1316760196)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SagittalMeter Lite free?

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

### Is CongruenceIndexApp free?

CongruenceIndexApp costs $0.99, with no in-app purchases.

### Do SagittalMeter Lite or CongruenceIndexApp have ads?

Neither SagittalMeter Lite nor CongruenceIndexApp shows ads.

### Which is updated more often, SagittalMeter Lite or CongruenceIndexApp?

SagittalMeter Lite ships an update every 11 months, and CongruenceIndexApp every 9 months. Most recently, SagittalMeter Lite was updated on October 24, 2026 and CongruenceIndexApp on October 7, 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.*