Comparison

imOTP vs 2DDocReader

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

Head to head

About

imOTP

Features

Read full description

imOTP is a free one-time password (OTP) client implementation. The OTP solution provides strong authentication based on time synchronous one-time passwords and consists of a client component (this application) and a server component (available on http://motp.sourceforge.net). imOTP features: -) Supports multiple accounts based on profiles -) Supports strict 4-digit pins a well as longer alphanumeric pins -) Supports taking the generated password into the clipboard -) Displays the current epoch time

About

2DDocReader

Scan and verify 2D-Doc barcodes directly from your documents. This utility app quickly extracts all embedded information from these specialized barcodes.

Highlights

Scan 2D-Doc barcodes
Extract barcode information
Document verification
Simple interface

Features

Read full description

2D-Doc Reader is an application that allows to scan and check 2D-Doc barcodes. It simply reads any 2D-Doc barcode stamped on a document to extract the information it contains.

Screenshots

imOTP3 screens

2DDocReader3 screens

Verdict

The call

The clearest difference is update cadence: 2DDocReader at every 3 weeks against imOTP's every 8 months. imOTP's advantage is iOS requirement (9.0 vs 15.0). 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

imOTP ships an update every 8 months, 2DDocReader every 3 weeks. The most recent releases landed on October 10, 2026 and September 25, 2026 respectively.

Scorecard2 real differences · 6 level

imOTP versus 2DDocReader: the parameters behind the verdict, then further details
Parameter	imOTP	2DDocReader
Price	Free	Free
Positive reviews	—	0.0% of reviews
Update frequency	Every 8 months	Every 3 weeks — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	15.0
Further details — not scored
Size	20 MB	6 MB
Age rating	4+	4+
Developer	Johann Marinits	IDnow GmbH

In-app purchases

None

imOTP

No in-app purchases

None

2DDocReader

No in-app purchases

Questions

Is imOTP free?

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

Is 2DDocReader free?

2DDocReader is free to download, with no in-app purchases.

Do imOTP or 2DDocReader have ads?

Neither imOTP nor 2DDocReader shows ads.

Which is updated more often, imOTP or 2DDocReader?

imOTP ships an update every 8 months, and 2DDocReader every 3 weeks. Most recently, imOTP was updated on October 10, 2026 and 2DDocReader on September 25, 2026.