# Groundwire: VoIP SIP Softphone — user reviews > 472 indexed App Store user reviews of Groundwire by Acrobits, rated 3.80/5 from 117 ratings. - Source: https://appshunter.io/ios/app/groundwire-voip-sip-softphone/id378503081/reviews - App overview in markdown: https://appshunter.io/ios/app/groundwire-voip-sip-softphone/id378503081.md - Rating breakdown: 5★ 70 · 4★ 9 · 3★ 9 · 2★ 6 · 1★ 23 ## What do users think of Groundwire? Overall sentiment: positive **Pros** - 🚀 Reliable and stable - 🔒 Secure calls with ZRTP - 👍 Customizable and feature-rich - 🚀 Excellent call quality - 👍 Great customer support - 🚀 Seamless background operation - 👍 Intuitive and user-friendly **Cons** - 🐛 Crashes and lost settings after updates - 🔋 High battery consumption - 👎 Outdated and cluttered UI - 🐛 Unreliable push notifications - 👎 Compatibility issues with newer iOS versions - 🔋 Slow to establish calls **Commonly reported bugs** - Dropped calls and registration issues - Keypad not working during some calls - Call history pagination problems - Contact search functionality broken **Most requested features** - Dark mode or high-contrast theme - Native iPad support - SMS/text messaging integration - Ability to select system ringtones - Improved Bluetooth device handling ## Newest reviews (12 of 472) ### 2/5 — Faulty *2026-08-03, version 25.3.101* Calls are unclear and not receiving text messages ### 2/5 — 複数チャンネル使用時 *2026-06-27, version 25.3.93* 未登録番号の場合には、どの番号に掛かってきたは分かりますが、電話帳に登録している番号に関しては、どの番号に掛けてきているのか判別が出来ないので、非常に不便。 ### 2/5 — アップデートで使えなくなった *2026-06-26, version 25.3.92* 本日からのアップデート適用してから画面真っ白で使えなくなった 強制終了しても同じ ちゃんとテストしてからリリースしてほしい ### 2/5 — ギリギリ仕事で使えるレベル *2026-06-12, version 25.3.89* 仕事で3台利用していますが仕事で使うにはギリギリのレベルかな？ 設定が急に外れたり着信がならなかったりアプリを開いて画面を開かないと着信が来なかったり会話が終了してから他のアプリが入っているスマホが鳴ったり… 古い端末だと容量が足りなくて起きてる可能性もあるのかも知れませんが… その度にアプリを削除再設定 他の一般電話番号用アプリもこんなものなのかもしれませんが… ### 5/5 — This one works 😃 *2026-05-06, version 25.3.76* Not had much luck in the past with VOIP SIP apps, all sorts of problems, unstable, battery killers bla bla. But this one works great, way better than expected. Thanks so much to the developers. ### 3/5 — Wi-Fi繋げてると利用できなくなった *2026-05-01, version 25.3.76* 本日アップデートしたら、Wi-Fi接続しているとアプリが使えなくなってしまった。 それまでは問題なくつかえていたのですが。 ### 3/5 — Issues *2026-04-30, version 25.3.76* In general it’s a good app, but there are some problems: after launching it’s working very slow first 15 mins, doesn’t work hold button, once you pick up another call, you can’t unhold previous. Please fix these problems 🙏🏻 ### 5/5 — Works great with a home lab *2026-04-30, version 25.3.76* I’m using this with an asterisk system at home and it works great. The local push option saves on battery over the other sip phones I’ve used. Highly recommend. ### 5/5 — Exzellenter Support *2026-04-21, version 25.3.72* Nutze die App schon seit Jahren, funktioniert gut und zuverlässig. Vor kurzem nun ein Bug bei mir. Nachdem ich dem Support-Team das Debug-Log geschickt hatte, kam etwa eine Woche später ein Update, das das Problem behoben hat. Ich bin echt begeistert. ### 5/5 — Where has this been all my life? *2026-03-29, version 25.3.65* I run the Roblox group Moderley and we’ve always used VoIP to support our worldwide team. Most of us have desk phones at home, usually Ciscos, connected to our freepbx server. All these years I had never found a decent iOS app for taking sip calls. All the ones I had tried go to sleep causing you to miss calls or require some subscription or want you to sign up for another VoIP service. Groundwire is simply next level. For a one time fee you finally get a sip client that works perfectly and uses push notifications properly to ensure you never miss a call. I am always recommending Groundwire to my employees for taking calls on the go, to the point where one has joked that my second job is Groundwire sales. It’s just that I spent my whole life working around terrible sip clients due to iOS limitations and then Groundwire comes along and solves it all for a small fee. 100% would recommend, as long as you’ve got your provider and credentials ready you can connect it right away. :) ### 4/5 — So far so good *2026-03-29, version 25.3.65* It was a little bit hard to setup as VoIPcloud not in the provider list, wasn’t sure if I needed to use TLS(SIP) or TLS(SIPS), anyway after a bit of trial and error I eventually got it to work. Seems reliable, I like that it stores credentials server side and sends push notifications so it even calls when the app is closed, which is something Linphone doesn’t do. Seems reliable so far, will update my review if it fails me. ### 5/5 — Wunderbar *2026-03-09, version 25.3.52* Funktioniert in Kombination mit der FritzBox einwandfrei. ## Most critical reviews (10 lowest-rated) ### 1/5 — No encrypted calling *2026-08-03, version 25.3.101* Turning on encrypted calling blocks connection to voip.ms server ### 1/5 — This app no longer runs in the background *2026-06-26, version 25.3.92* You can’t really use this as a SIP softphone ### 1/5 — 同意画面真っ白でボタンも出ない。 *2026-06-26, version 25.3.92* 画面真っ白で使えない ### 1/5 — Actualizacion Mal *2026-06-26, version 25.3.92* al actualizar la aplicacion se queda en blanco y no arranca ### 1/5 — Read Terms of service first. *2026-06-18, version 25.3.89* I paid for the app then when provided with the TOS that are unacceptable for me I couldn’t get a refund. ### 1/5 — User Busy issue !! *2026-06-07, version 25.3.76* I purchased Groundwire based on its highly favourable online reviews, but my experience has been disappointing. The app initially works correctly alongside other registered handsets and SIP devices. However, after a period ranging from a few minutes to several hours, it causes the entire system to report “User Busy”, preventing incoming calls from reaching any parallel devices or accounts. The issue immediately disappears when I remove the account from Groundwire, and all other devices begin receiving calls again. Re-adding the account restores normal operation temporarily, but the problem eventually returns. For a business phone system, this level of instability is unacceptable. Missed calls can result in lost business opportunities and poor customer experience. Based on my experience, the application is unreliable and has proven to be a waste of money. Device: iPhone 17 Pro Max iOS Version: 26.4.2 ### 1/5 — Mauvaise connexion *2026-04-16, version 25.3.69* J’appelle et les gens ne m’entendent pas, certains textos ne rentrent pas donc très insatisfait de cette application. ### 1/5 — 番号がズレる *2026-02-14, version 25.3.41* 通話中にiマークを押して番号をコピーする作業の際に違う番号が表示されてる不具合がある。非常に困るので直して欲しい ### 1/5 — Totaler Schrott *2026-01-08, version 25.2.68* Habe mich von den ganzen Guten Bewertungen blenden lassen. Push benachrichtigungen funktionieren nicht. Nicht mal wenn die App im Hintergrund trotzdem läuft. Da laufen Zoiper oder Linphone zuverlässiger und sind komplett kostenlos ### 1/5 — Mauvaise connexion *2025-12-18, version 25.2.68* J’appelle et les gens ne m’entendent pas, certains textos ne rentrent pas donc très insatisfait de cette application. ## Most praised reviews (10 highest-rated) ### 5/5 — Consistent and Reliable *2026-07-16, version 25.3.100* I have been using Groundwire for years and it has consistently worked for me for work calls domestically and overseas. At times, the quality of the phone calls are not as crisp as I would like. I have tried other apps but always come back to Groudwire ### 5/5 — 満足です！ *2026-07-04, version 25.3.93* シンプルで無駄がなく使いやすい。 言う事無しなので⭐︎5付けさせて頂きました。 ### 5/5 — 音質がいい！ *2026-07-03, version 25.3.93* 通話音質がとてもクリアで、相手の声も聞き取りやすいです。接続も安定していて、仕事で安心して使えています。操作もシンプルで使いやすく、おすすめできるアプリです。 ### 5/5 — 通話切れない *2026-07-03, version 25.3.93* 音質が良く、通話中も途切れにくくて安心して使えています。操作もシンプルでわかりやすく、初めてでも迷わず使えるのが良かったです。全体的に安定していて、とても使いやすい電話アプリだと思います。 ### 5/5 — 使いやすい *2026-07-03, version 25.3.93* 音質も聞き取りやすく会話がスムーズに出来るため仕事で使っています。アプリ自体設定など簡単にできたので使いやすくなってます。 ### 5/5 — 1番安定して利用できる *2026-07-03, version 25.3.93* このアプリは細かい設定も可能でアップデートも早く、1番安定して利用できる ### 5/5 — Für mich perfekt *2026-06-23, version 25.3.89* Ich nutze die App in Verbindung mit einer FreePBX, und bin sehr zufrieden damit. Dabei leistet mir die App vor allem im Home Office gute Dienste, um trotzdem über die Telefonanlage telefonieren zu können, diese zu kontrollieren, sowie mich in die verschiedenen Warteschlangen einzuklinken. Auch die verschlüsselte Telefonie funktioniert problemlos. SMS und Video nutze ich persönlich gar nicht. ### 5/5 — OVH compatible *2026-06-20, version 25.3.89* Fonction très bien avec OVH, contrairement à l’application native d’ovh… ### 5/5 — Awesome Soft Phone, Awesome Support *2026-06-09, version 25.3.89* I like everything about the GroundWire softphone app, I’m a true power user and use just about every feature, auto provision, web push, fetch, media upload of messages, etc. everything works great! Finally I’m not annoyed :) ### 5/5 — Greatest sip app in appstore *2026-05-10, version 25.3.76* After a lot of mess with other sip apps in appstore (even paid), i would definitely recommend Groundwire. --- *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 2026-08-28.*