Comparison

Monotp vs SOTP Authenticator

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

Head to head
About

Monotp

Features
Read full description

Monotp converts your passive OTP process to active push notification. It works like magic! When you use Monotp's Chrome Extension, it will identify your visited website's OTP request and will send it to your mobile phone as a push notification. When you Accept that request on your phone, your code will be generated on your mobile phone and send it back to Monotp's Chrome Extension. That extension will put your OTP code to the OTP text box and will redirect you to the application automatically. Simple is it? Do you have security concerns? Let's talk about it; Monotp doesn't share your secrets with any other app o even it's own Chrome Extension. Your secrets remain on your mobile phone (and sure encrypted). When you visit a page, Chrome Extension will only ask your phone an OTP for that application. Your OTP will be generated on your phone and send back to Chrome Extension without sharing any secrets. Compared to any other OTP Authenticators, Monotp works lighting fast, accepts your request, informs you and completes your OTP process Secure and Wisely! Give it a try and let us know what we can do better!

About

SOTP Authenticator

Features
Read full description

SOTP is a free open source one time password generator that values your privacy. Key features: - No data is collected or sent anywhere - Secure data transfer - Apple Watch App - Dark theme - Import from Google Authenticator

Screenshots

Monotp4 screens
SOTP Authenticator4 screens

Verdict

The call

The clearest difference is in-app purchases: Monotp at none against SOTP Authenticator's 2. SOTP Authenticator's advantage is update cadence (every 5 months vs every 11 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SOTP Authenticator sells 2 one-off in-app purchases. Monotp asks for nothing beyond the download.

UpkeepUpdate frequency

Monotp ships an update every 11 months, SOTP Authenticator every 5 months. The most recent releases landed on September 19, 2026 and September 16, 2026 respectively.

Scorecard3 real differences ยท 3 level
Monotp versus SOTP Authenticator: the parameters behind the verdict, then further details
ParameterMonotpSOTP Authenticator
PriceFreeFree
Update frequencyEvery 11 monthsEvery 5 months โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.013.0 โ€” better
Further details โ€” not scored
Size270 MB20 MB
Age rating4+4+
DeveloperMonoFor, Inc.Anzhela Baroyan

In-app purchases

None

Monotp

No in-app purchases

2 purchases

SOTP Authenticator

One-time2
  • One dollar donation$0.99
  • Five dollar donation$4.99

Questions

Is Monotp free?
Monotp is free to download, with no in-app purchases.
Is SOTP Authenticator free?
SOTP Authenticator is free to download, with in-app purchases available.
Do Monotp or SOTP Authenticator have ads?
Neither Monotp nor SOTP Authenticator shows ads.
Which is updated more often, Monotp or SOTP Authenticator?
Monotp ships an update every 11 months, and SOTP Authenticator every 5 months. Most recently, Monotp was updated on September 19, 2026 and SOTP Authenticator on September 16, 2026.

Other comparisons