# Horizon Smartphone App > IP telephony soft-client for making calls and instant messaging. (iPhone/iPad app by Gamma Telecom LTD.) - Source: https://appshunter.io/ios/app/horizon-smartphone-app/id933224195 (this page in markdown: same URL + `.md`) - Developer: [Gamma Telecom LTD](https://appshunter.io/developer/445329272) - Category: Business - Price: Free - Age rating: 4+ - Requires: iOS 12.1 · 62 MB - Languages: American English - Released: 2015-02-10 - Data updated: 2026-06-09 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/horizon-smartphone-app/id933224195/reviews.md ## What is Horizon Smartphone App? The Horizon Smartphone App allows you to make and receive calls using the Horizon IP telephony service from your iOS device. This is ideal for people who often work remotely or work from different locations where it is not practical to install a handset. In addition, the app also provides presence and instant messaging between users, keeping you connected to work colleagues no matter where you are. ******************************************** Note: A Horizon account enabled for the iOS soft-client is required to use the app. Please contact your Horizon Service Provider for more information. ********************************************* ## Key features - Make and receive IP calls - Instant messaging - User presence indicators - Remote work solution - Business communication ## Recent user reviews (10 of 52) All indexed reviews: https://appshunter.io/ios/app/horizon-smartphone-app/id933224195/reviews.md ### 1/5 — Terrible *2024-09-12, version 23.9.240* Everything about this app is awful. From user ability to password reset nothing works ### 1/5 — Not working correctly with new iOS *2023-09-30, version 23.9.240* Lost all ability to assess the menu when on a call, can’t transfer, speaker or even end the call ### 1/5 — Pointless Wi-Fi only *2023-07-19, version 23.9.240* This app is really pointless if you are working remotely as it only works on Wi-Fi and is useless using 4G/5G ### 1/5 — Rubbish *2023-07-11, version 23.9.240* If I did not have to use it for work it would not be on my phone. It is not possible to add work contacts to the app directory, that is crazy ### 1/5 — History *2023-04-20, version 23.9.240* This COLLABORATION mobile app has flaws. History screen does not allow deletion of any calls. The screen does not seem to automatically refresh, so missed calls are not displayed, unless you regularly refresh the screen, which means you do not quickly respond. Emergencies have to wait. The last version was perfect, but is no longer supported, so any probs and you have to upgrade to the new flawed version. Not happy. ### 1/5 — Rubbish *2023-03-24, version 23.9.240* Terrible app always stops and freezes ### 1/5 — Horrible *2022-10-14, version 23.9.240* Does not work with AirPod earbuds, when answering a call it can be ten seconds before the call is connected, the speakerphone option does not always work, it’s a horrible process to try and transfer someone, you now need a password to access voicemails and the do not disturb function works does not always work. That’s all I can think of at the moment. The last app had its issues but this update is absolutely horrible. ### 1/5 — The worst app ever created *2022-10-03, version 23.9.240* This app is horrendous. Never have I had such a negative experience with any app in my life. It doesn’t allow you to answer calls on time, it hangs up calls randomly and seems to decide when it wants to work. It has ruined my working from home experience. I have complained to the company and nothing has been done. As soon as I get the opportunity to use a different app I will be DONE with Horizon. The sun will be setting on horizon very soon. Hopefully sooner than later 😡 ### 1/5 — Rubbish Update *2022-08-03, version 23.9.240* Much preferred the old app! My voicemail password has never been accepted since we were given this tool as a business, the old app didn’t need a password so I could listen & delete messages. You can’t clear call log which is very annoying & it’s just harder to navigate, when I answer a call I can’t always find the ‘speaker’ option ### 1/5 — Very bad app not suitable for uk *2022-07-13, version 23.9.240* Worst network, can never hear the conversation!! ## Frequently asked questions about Horizon Smartphone App ### What does the Horizon Smartphone App do? The app allows you to make and receive calls using your Horizon IP telephony service directly from your iOS device. It also provides instant messaging and presence information to keep you connected with colleagues. ### Who is this app designed for? This app is ideal for individuals who work remotely or from different locations and find it impractical to install a physical phone handset. It ensures you remain connected to your work colleagues regardless of your location. ### Is there a cost to use the Horizon Smartphone App? The app itself is free to download and use. However, a Horizon account enabled for the iOS soft-client is required. You will need to contact your Horizon Service Provider for information on account setup and any associated costs. ### What are the key features of the app? Key features include the ability to make and receive calls via your IP telephony service, instant messaging with colleagues, and viewing their presence status. This facilitates seamless business communication for mobile workers. ### What do I need to use this app? To use the Horizon Smartphone App, you require a Horizon account that is specifically enabled for the iOS soft-client. Please reach out to your Horizon Service Provider for details on obtaining and setting up such an account. ## Version history (last 5 releases) ### 23.9.240 — 2021-09-20 Bug Fixes ### 23.9.171 — 2021-04-26 Bug Fixes ### 23.9.17 — 2021-01-25 Bug fixes on client ### 23.8.76 — 2019-11-05 Bug fixes relating to Call History ### 23.8.40 — 2019-07-24 •Access to the Collaboration features including Conferencing, Instant Messaging and Presence (subject to additional charges) •Added a password reset function •Added visual voicemail •Added location both automatic and manual settings •Added Emoji support •Simplified and streamlined the call setting features •Improved look and feel •Bug fixes and improved stability ## Apps similar to Horizon Smartphone App | App | Rating | Price | Category | | --- | --- | --- | --- | | [Softphone](https://appshunter.io/ios/app/softphone/id1195110344) | — | Free | Business | | [Street Agent](https://appshunter.io/ios/app/street-agent/id1553787057) | — | Free | Business | | [HiHi Connect 2](https://appshunter.io/ios/app/hihi-connect-2/id1532249807) | — | Free | Business | | [Kadence - Hybrid Working](https://appshunter.io/ios/app/kadence-hybrid-working/id1534988099) | 4.8 (6) | Free | Business | | [CallSwitch One](https://appshunter.io/ios/app/callswitch-one/id1660964003) | — | Free | Business | | [InventoryBase](https://appshunter.io/ios/app/inventorybase/id598654868) | — | Free | Business | ## More apps by Gamma Telecom LTD - [Inbound](https://appshunter.io/ios/app/inbound/id445329269) - [OMNi](https://appshunter.io/ios/app/omni/id698171691) - [Business Continuity](https://appshunter.io/ios/app/business-continuity/id820968867) - [SIP Trunk Call Manager](https://appshunter.io/ios/app/sip-trunk-call-manager/id1065446436) - [CircleLoop](https://appshunter.io/ios/app/circleloop/id1120683212) All apps by Gamma Telecom LTD: https://appshunter.io/developer/445329272 ## Related topics [horizon smartphone app](https://appshunter.io/ios/topics/horizon-smartphone-app) --- *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 2026-06-09.*