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![Authenticator - 2 Factor app](https://is4-ssl.mzstatic.com/image/thumb/Purple116/v4/df/a7/d1/dfa7d15d-49d4-d119-1c78-4ed872f9c9bf/source/512x512bb.jpg)
Authenticator is a software-based authenticator that implements two-step verification services using the Time-based One-time Password Algorithm (TOTP; specified in RFC 6238) and HMAC-based One-time Password algorithm (HOTP; specified in RFC 4226), for authenticating users of software applications
![Authenticator is a software-based authenticator that implements two-step verification services using the Time-based One-time Password Algorithm (TOTP; specified in RFC 6238) and HMAC-based One-time Password algorithm (HOTP; specified in RFC 4226), for authenticating users of software applications](https://is4-ssl.mzstatic.com/image/thumb/Purple116/v4/df/a7/d1/dfa7d15d-49d4-d119-1c78-4ed872f9c9bf/source/60x60bb.jpg)
Authenticator - 2 Factor app
by IT-Projekt Unternehmergesellschaft (haftungsbeschrankt)
![Authenticator - 2 Factor app](https://is5-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/76/b9/99/76b9999f-f572-d91e-3729-e13fabd05906/dfe1e100-e1d9-4116-a66f-34006a4d6a05_Screenshot_2.jpg/750x750bb.jpeg)
![Authenticator - 2 Factor app](https://is4-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/61/e3/bd/61e3bd0e-900d-2233-7a4d-bc0ab5f4cdba/6640402e-06d6-413a-b7d2-dc5547be884d_Screenshot_4.jpg/750x750bb.jpeg)
![Authenticator - 2 Factor app](https://is2-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/0d/b0/04/0db0048c-b6aa-a5f5-9b8c-da12d81f844f/3cf12b6f-fdb3-49a6-9a12-d2f9dda64c35_Screenshot_6.jpg/750x750bb.jpeg)
What is it about?
Authenticator is a software-based authenticator that implements two-step verification services using the Time-based One-time Password Algorithm (TOTP; specified in RFC 6238) and HMAC-based One-time Password algorithm (HOTP; specified in RFC 4226), for authenticating users of software applications.
![Authenticator - 2 Factor app](https://is5-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/76/b9/99/76b9999f-f572-d91e-3729-e13fabd05906/dfe1e100-e1d9-4116-a66f-34006a4d6a05_Screenshot_2.jpg/750x750bb.jpeg)
App Screenshots
![Authenticator - 2 Factor app screenshot-0](https://is5-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/76/b9/99/76b9999f-f572-d91e-3729-e13fabd05906/dfe1e100-e1d9-4116-a66f-34006a4d6a05_Screenshot_2.jpg/750x750bb.jpeg)
![Authenticator - 2 Factor app screenshot-1](https://is4-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/61/e3/bd/61e3bd0e-900d-2233-7a4d-bc0ab5f4cdba/6640402e-06d6-413a-b7d2-dc5547be884d_Screenshot_4.jpg/750x750bb.jpeg)
![Authenticator - 2 Factor app screenshot-2](https://is2-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/0d/b0/04/0db0048c-b6aa-a5f5-9b8c-da12d81f844f/3cf12b6f-fdb3-49a6-9a12-d2f9dda64c35_Screenshot_6.jpg/750x750bb.jpeg)
![Authenticator - 2 Factor app screenshot-3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/cf/cb/fc/cfcbfc7a-e06f-de84-8da2-ac588be2d314/d36ff110-1122-4ddb-82cf-4281f769703f_IMG_9237_copy.PNG/750x750bb.jpeg)
![Authenticator - 2 Factor app screenshot-4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/4d/89/7f/4d897f76-fa8f-aee3-6ece-c5b594f40342/67211615-e6c1-412d-aab3-0cc78ec71016_IMG_9238_copy.PNG/750x750bb.jpeg)
App Store Description
Authenticator is a software-based authenticator that implements two-step verification services using the Time-based One-time Password Algorithm (TOTP; specified in RFC 6238) and HMAC-based One-time Password algorithm (HOTP; specified in RFC 4226), for authenticating users of software applications.
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AppAdvice does not own this application and only provides images and links contained in the iTunes Search API, to help our users find the best apps to download. If you are the developer of this app and would like your information removed, please send a request to takedown@appadvice.com and your information will be removed.