Comparison

imOTP vs OETH OnPremise

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

OETH OnPremise

Features
Read full description

OETH Identity now on premise. The OETH OnPremise App, in conjunction with the OETH Identity OnPremise, simplifies strong authentication for enterprises, enhancing the passwordless SSO experience. Key features: - Scan QR code to enable passwordless authentication. - Passwordless authentication methods support biometric or patternlock. - Activate passwordless authentication by scanning a QR code or receiving a push notification. - Authentication is certified by FIDO Alliance. To activate OETH Identity OnPremise, please contact OETH customer support.

Screenshots

imOTP3 screens
OETH OnPremise4 screens

Verdict

The call

The clearest difference is update cadence: OETH OnPremise at every 3 months against imOTP's every 8 months. imOTP's advantage is iOS requirement (9.0 vs 13.0). 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, OETH OnPremise every 3 months. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 4 level
imOTP versus OETH OnPremise: the parameters behind the verdict, then further details
ParameterimOTPOETH OnPremise
PriceFreeFree
Update frequencyEvery 8 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size20 MB26 MB
Age rating4+4+
DeveloperJohann MarinitsWebComm Technology Co., Ltd.

In-app purchases

None

imOTP

No in-app purchases

None

OETH OnPremise

No in-app purchases

Questions

Is imOTP free?
imOTP is free to download, with no in-app purchases.
Is OETH OnPremise free?
OETH OnPremise is free to download, with no in-app purchases.
Do imOTP or OETH OnPremise have ads?
Neither imOTP nor OETH OnPremise shows ads.
Which is updated more often, imOTP or OETH OnPremise?
imOTP ships an update every 8 months, and OETH OnPremise every 3 months. Most recently, imOTP was updated on October 10, 2026 and OETH OnPremise on October 9, 2026.

Other comparisons