# FLX-RAIL

> FLX-RAIL (iPhone/iPad app by SISGEO S.r.l.)

- Source: https://appshunter.io/ios/app/flx-rail/id6449735068 (this page in markdown: same URL + `.md`)
- Developer: [SISGEO S.r.l](https://appshunter.io/developer/1439891075)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 37 MB
- Released: 2023-12-21
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/flx-rail/id6449735068/reviews.md

## What is FLX?

FLX-Rail®, specially developed for the railway swing monitoring, automatically and continuously measures the maximum vertical deformation of the rail at each passage of a train. This phenomenon is commonly known as “rail swing” or “rail dance”. The FLX-RAIL® is comparable to a connected voidmeter (RTVMD).


The instrument is installed between the track and the ballast, fixed under the rail using two powerful magnets: this solution allows quick and easy installation. Another key point is the innovative technology called SBV® (Start By Vibe), patented, which activates the instrument just before the train passes.


FLX-Rail® can be equipped with a biaxial inclinometer (MEMS technology) for static rail tilting monitoring and a PT-100 temperature probe for measuring the rail temperature.
The FLX-Rail® is the innovative instrument which enables complete and accurate railway swing monitoring.



FLX-Rail® LoRa, the autonomous wireless version is now available and its installation has never been simpler: no tools, no glue, no drilling operation are necessary.

The measurements are then immediately transmitted via LoRaWAN.



FLX-RAIL® LoRa is also certified according to the demanding railway norm EN 50125-3 clause 4.13 to resist to shocks and vibrations.

Combining the FLX-RAIL® together with the AimSight camera provides the first and unique global railway infrastructures automatic monitoring solution for :


- Railway tracks geometry monitoring (both static & under load) of cant, twist and rail gauge
- Railway embankment
- Catenary infrastructures (post, contact wire, etc)
- Thermal rail monitoring »


## Version history (last 1 release)

### 1.1.6 — 2023-12-21

No release notes.

## More apps by SISGEO S.r.l

- [B.R.A.IN. - Sisgeo](https://appshunter.io/ios/app/brain-sisgeo/id1439891076)
- [MIND Readout - SISGEO](https://appshunter.io/ios/app/mind-readout-sisgeo/id1586965223)

All apps by SISGEO S.r.l: https://appshunter.io/developer/1439891075

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*