# LAVDIS Mobile vs ONI system+

The clearest difference is update cadence: ONI system+ at every 2 months against LAVDIS Mobile's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.

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

LAVDIS Mobile ships an update every 11 months, ONI system+ every 2 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | LAVDIS Mobile | ONI system+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lavdis-mobile/id1528491497/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 8.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 60 MB | 177 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Statni plavebni sprava](https://appshunter.io/developer/1528491499) | [NAM system a.s.](https://appshunter.io/developer/1156895479) |

## What reviewers say

### LAVDIS Mobile

[App page](https://appshunter.io/ios/app/lavdis-mobile/id1528491497)

This app provides real-time information on Czech waterways, including navigation status, restrictions, and essential infrastructure. It offers detailed maps, water levels, and operational details for locks and ports, enhancing safety and efficiency for all water traffic participants.

**Highlights:** Waterway schematics, Navigation information and restrictions, Navigational maps with key objects, Water levels and flow rates, Lock operational information, Port contact details, Inland navigation legislation summary

**Features:** macOS Compatibility

**In-app purchases:** none


### ONI system+

[App page](https://appshunter.io/ios/app/oni-system-plus/id6740395392)

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

**In-app purchases:** none


## Frequently asked questions

### Is LAVDIS Mobile free?

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

### Is ONI system+ free?

ONI system+ is free to download, with no in-app purchases.

### Do LAVDIS Mobile or ONI system+ have ads?

Neither LAVDIS Mobile nor ONI system+ shows ads.

### Which is updated more often, LAVDIS Mobile or ONI system+?

LAVDIS Mobile ships an update every 11 months, and ONI system+ every 2 months. Most recently, LAVDIS Mobile was updated on October 16, 2026 and ONI system+ on October 20, 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.*