Comparison

ModbusV vs Signl

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

Head to head
About

ModbusV

This utility tool facilitates the conversion of Modbus and DirectNet V addresses. It is designed for users who need to translate between these two industrial communication protocols.

Highlights
  • Modbus address conversion
  • DirectNet V address conversion
  • Industrial communication protocol translation
  • Utility tool
Features
Read full description

A utility tool for Modbus and DirectNet V address conversion.

About

Signl

Visualize your home Wi-Fi signal strength in 3D using your phone's camera or imported floor plans. Identify dead zones and optimize router placement for a flawless connection throughout your home.

Highlights
  • 3D Wi-Fi signal visualization
  • LiDAR room scanning
  • Floor plan import (photo/PDF)
  • Wi-Fi coverage mapping
  • Network diagnostics
  • Router/extender placement optimization
Read full description

See your WiFi painted onto a 3D map of your own home. Walk through your rooms with your iPhone. Signl measures the real signal in each one and shows you exactly where it drops, and where to move your router to fix it. WHAT YOU GET - 3D scan: walk through your home and watch the model build itself. LiDAR is used on iPhones that have it. - No LiDAR? Import a floor plan. Drop in a photo or a PDF and Signl reads the rooms. - Coverage map: every room measured and scored, weak spots marked where they actually are. - Live test: real speed and latency, measured from where you stand. Other apps give you a number. Signl gives you a place. Each measurement sits on the room it was taken in, so you know which wall is in the way and where the router belongs. YOUR SCANS STAY ON YOUR IPHONE The 3D model of your home never leaves your device. Nothing is stored on our servers. Floor plan photos are analyzed, then discarded. FREE AND PRO Scanning your home and building the 3D model are free. Signl Pro unlocks the full coverage heatmap, scores for every room, router placement recommendations and shareable reports. Signl Pro auto-renewable subscriptions: Yearly ($34.99/year) or Weekly ($5.99/week). A Lifetime purchase is also available. Payment will be charged to your Apple Account at confirmation of purchase. Your subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings at any time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://signlwifi.com/privacy

Screenshots

ModbusV4 screens
Signl4 screens

Verdict

The call

The clearest difference is rating: Signl at 4.5 against ModbusV's 1.0. Signl also leads on update cadence (weekly vs every 17 months). ModbusV's advantage is device support (3 vs 1) and iOS requirement (12.2 vs 18.0). On price, ratings volume, ads and in-app purchases 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. ModbusV sells 2 in-app purchases, starting at $0.49 per month and Signl sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Signl holds the better App Store score, 4.5 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

ModbusV ships an update every 17 months, Signl weekly. The most recent releases landed on October 1, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
ModbusV versus Signl: the parameters behind the verdict, then further details
ParameterModbusVSignl
PriceFreeFree
Rating1.0 (1 ratings)4.5 (2 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 17 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.2 — better18.0
Further details — not scored
Size108 MB30 MB
Age rating4+4+
DeveloperChai KunnasitVictor Backouche

Customer experience

ModbusV

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Signl

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

ModbusV

Subscriptions2
  • Premium - 1 Month$0.491 Month
  • Premium - 1 Year$3.991 Year
2 purchases

Signl

Subscriptions2
  • Signl Pro — Weekly$4.997 Days
  • Signl Pro — Yearly$24.991 Year

Questions

Is ModbusV free?
ModbusV is free to download, with in-app purchases available.
Is Signl free?
Signl is free to download, with in-app purchases available.
Which has better reviews, ModbusV or Signl?
Signl is rated higher. ModbusV averages 1.0 out of 5 from 1 ratings, while Signl averages 4.5 from 2 ratings.
Do ModbusV or Signl have ads?
Neither ModbusV nor Signl shows ads.
Which is updated more often, ModbusV or Signl?
ModbusV ships an update every 17 months, and Signl weekly. Most recently, ModbusV was updated on October 1, 2026 and Signl on October 11, 2026.

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