2D vs imOTP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2D
Scan and verify 2D-Doc barcodes on documents to extract and compare information. This tool is designed for checking authenticity and data integrity on official documents.
- Scan 2D-Doc barcodes
- Extract barcode information
- Compare with written data
- Verify document authenticity
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2D-Doc Reader is the first smartphone application enabling people to scan and check 2D-Doc barcodes. It simply reads any 2D-Doc barcode stamped on a document to extract the information it contains and compare it with the written information on the document. This application allows you to process 2D-Doc issued by AriadNEXT. For the others, you will need to subscribe to our service.
imOTP
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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
Screenshots
Verdict
The clearest difference is update cadence: 2D at every 3 months 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
2D ships an update every 3 months, imOTP every 8 months. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.
| Parameter | 2D | imOTP |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 30.4% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | AriadNEXT | Johann Marinits |
In-app purchases
2D
No in-app purchases
imOTP
No in-app purchases
