Comparison

imOTP vs EMKA Smart Access Key

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

Head to head

EMKA Smart Access Key

Free

🔧 Utilities

No ratingsView app →

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

EMKA Smart Access Key

Read full description

„EMKA Smart Access Key“ ist die Schlüssel-App zum Öffnen und Schließen von EMKA-Verschlusslösungen per Bluetooth® Low Energy (BLE).

Screenshots

imOTP3 screens

EMKA Smart Access Key4 screens

Verdict

The call

The clearest difference is iOS requirement: imOTP at 9.0 against EMKA Smart Access Key's 15.4. On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

imOTP ships an update every 8 months, EMKA Smart Access Key every 9 months. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 5 level

imOTP versus EMKA Smart Access Key: the parameters behind the verdict, then further details
Parameter	imOTP	EMKA Smart Access Key
Price	Free	Free
Update frequency	Every 8 months — better	Every 9 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	9.0 — better	15.4
Further details — not scored
Size	20 MB	98 MB
Age rating	4+	17+
Developer	Johann Marinits	EMKA Beschlagteile GmbH & Co. KG

In-app purchases

None

imOTP

No in-app purchases

None

EMKA Smart Access Key

No in-app purchases

Questions

Is imOTP free?

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

Is EMKA Smart Access Key free?

EMKA Smart Access Key is free to download, with no in-app purchases.

Do imOTP or EMKA Smart Access Key have ads?

Neither imOTP nor EMKA Smart Access Key shows ads.

Which is updated more often, imOTP or EMKA Smart Access Key?

imOTP ships an update every 8 months, and EMKA Smart Access Key every 9 months. Most recently, imOTP was updated on October 10, 2026 and EMKA Smart Access Key on October 25, 2026.