Comparison

mSign vs MetriCorr Logger

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

Head to head

Sign PDF documents.

About

mSign

Features

Read full description

This mobile application enables you to digitally sign PDF documents using your personal signature on your iPhone or iPad.

About

MetriCorr Logger

Features

Read full description

This app provides corrosion technicians with a tool to fetch data from MetriCorr’s line of dataloggers in the field. Without the need for GSM/LTE wireless connection, this app connects directly to your MetriCorr device via Bluetooth on location. The users can set up parameters like “Sampling interval” and perform single spot-wise measurements, and export measurement data to cloud services or email.

Screenshots

mSign4 screens

MetriCorr Logger4 screens

Verdict

The call

The clearest difference is update cadence: mSign at every 2 weeks against MetriCorr Logger's every 52 months. MetriCorr Logger's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

mSign ships an update every 2 weeks, MetriCorr Logger every 52 months. The most recent releases landed on September 13, 2026 and September 27, 2026 respectively.

Scorecard2 real differences · 4 level

mSign versus MetriCorr Logger: the parameters behind the verdict, then further details
Parameter	mSign	MetriCorr Logger
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 52 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	15.1	13.0 — better
Further details — not scored
Size	38 MB	11 MB
Age rating	4+	4+
Developer	Mikrografija d.o.o.	MetriCorr ApS

In-app purchases

None

mSign

No in-app purchases

None

MetriCorr Logger

No in-app purchases

Questions

Is mSign free?

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

Is MetriCorr Logger free?

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

Do mSign or MetriCorr Logger have ads?

Neither mSign nor MetriCorr Logger shows ads.

Which is updated more often, mSign or MetriCorr Logger?

mSign ships an update every 2 weeks, and MetriCorr Logger every 52 months. Most recently, mSign was updated on September 13, 2026 and MetriCorr Logger on September 27, 2026.