# Callsign > Securely sign into your organization's protected applications. (iPhone/iPad app by Callsign Inc.) - Source: https://appshunter.io/ios/app/callsign/id811368225 (this page in markdown: same URL + `.md`) - Developer: [Callsign Inc](https://appshunter.io/developer/720208183) - Category: Productivity, Utilities - Price: Free - Rating: 2.00/5 from 6 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 15 MB - Languages: American English - Released: 2014-02-24 - Data updated: 2026-06-07 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/callsign/id811368225/reviews.md ## What is Callsign? Please note, this app will not work unless your employer is a Callsign customer, and they have asked you to download this app. Thank you for using Callsign, we are passionate about keeping your identity and data secure. You can use this app to securely sign into your organization's Callsign protected applications. To get started using the Callsign app, download here, and follow the step by step instructions. It should take 3-5 minutes. If you have any questions please contact your IT Service Desk, or use the in-app support instructions. And if you want to chat, please contact us on Twitter @callsign. ## Key features - Securely sign into applications - Identity and data protection - Employer-specific access - In-app support - Quick setup ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/callsign/id811368225/reviews.md ### 2/5 — Guest68 *2022-12-22, version 4.14.0* I can’t complete the registration process because when I enter 4 digits, it comes back with an error message “entered data is invalid.” I can’t see why 4 digits is wrong. At the same time, the Callsign id I entered as the first step of the registration haven been taken. I tried multiple times and get the same error. I guess this has created multiple rubbish records in its database. ### 5/5 — Improves security immensely. *2020-06-02, version 4.13.3* Great security product. ### 1/5 — Cumbersome to use *2018-09-27, version 4.13.0* On Mac it is a pain to login. The app keeps opening Safari even though my default browser is chrome. Then it's unable to sign in with Safari and one has to do a copy and paste dance from one browser to another to authenticate. This happens across our whole department and is a waste of time and immensely frustrating. Connection can drop when ever it feels like, some days are wide then others but please for the love of God make the authentication work better. ### 3/5 — What is this? *2014-11-28, version 2.0.1* I was looking for an app to replace physical business cards when I ran across this app. I don't think it's what I want, but — sadly — I don't know what this app is for. The developer's website is nicely done; however, it could use some "real world" use cases to give (potential) users a better idea of how to use their app. ### 5/5 — Very good app *2014-09-28, version 2.0.1* It's a good app ## Frequently asked questions about Callsign ### Does Callsign work for personal use? No, Callsign will only work if your employer is a customer and has requested you download it. It is designed for organizational use to secure access to company applications. ### How long does it take to set up Callsign? The setup process for Callsign typically takes between 3 to 5 minutes to complete, following the step-by-step instructions provided. ### What devices does Callsign support? Callsign is currently supported on iPhone and iPod devices. ### What is the age rating for Callsign? Callsign has an age rating of 4+, making it suitable for a wide range of users. ### How often is Callsign updated? The latest version of Callsign is 4.14.0, and it was last updated on September 29, 2022, indicating regular maintenance and updates. ### Where can I get help if I have issues with Callsign? If you encounter any questions or issues, you can contact your IT Service Desk or use the in-app support instructions provided within the Callsign application. ### Does Callsign have ads? No, Callsign does not contain advertisements. ### What is the user sentiment for Callsign based on ratings? Callsign has a rating of 2.0 stars from 6 ratings, suggesting that current user satisfaction may be low. ## Version history (last 5 releases) ### 4.14.0 — 2022-09-29 Security Update. ### 4.13.9 — 2022-05-19 • Security updates ### 4.13.8 — 2021-11-03 Bug fixes and performance improvements ### 4.13.7 — 2020-09-11 Bug fixes and performance improvements ### 4.13.3 — 2019-03-19 Bug fixes and performance improvements ## Apps similar to Callsign | App | Rating | Price | Category | | --- | --- | --- | --- | | [DeskLodge](https://appshunter.io/ios/app/desklodge/id1489165058) | — | Free | Productivity | | [Zoho Translate](https://appshunter.io/ios/app/zoho-translate/id6447339121) | 4.3 (3) | Free | Productivity | | [Routematic](https://appshunter.io/ios/app/routematic/id963559015) | 4.6 (221) | Free | Productivity | | [Excell Broadband](https://appshunter.io/ios/app/excell-broadband/id1553032865) | — | Free | Productivity | | [MyCena Business Fortress](https://appshunter.io/ios/app/mycena-business-fortress/id1448672807) | 5.0 (1) | Free | Productivity | | [vayalVandii](https://appshunter.io/ios/app/vayalvandii/id6483759819) | — | Free | Productivity | ## More apps by Callsign Inc - [CS Identify](https://appshunter.io/ios/app/cs-identify/id1515745623) All apps by Callsign Inc: https://appshunter.io/developer/720208183 ## Related topics [callsign live](https://appshunter.io/ios/topics/callsign-live) · [callsign](https://appshunter.io/ios/topics/callsign) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*