# Acrobits: VoIP SIP Softphone — Reliable softphone dialer

> SIP softphone for voice, video calls, and messaging with VoIP providers. (iPhone/iPad app by Acrobits.)

- Source: https://appshunter.io/ios/app/acrobits-voip-sip-softphone/id314192799 (this page in markdown: same URL + `.md`)
- Developer: [Acrobits](https://appshunter.io/developer/314192802)
- Category: Productivity
- Price: $6.99 with in-app purchases
- Rating: 4.20/5 from 47 App Store ratings · 735 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.0 · 67 MB
- Languages: American English, Arabic, Bulgarian, Czech, Danish, Dutch, French (France), German (Germany), Hebrew, Hungarian and 18 more
- Released: 2009-07-02
- Data updated: 2026-10-29
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/acrobits-voip-sip-softphone/id314192799/reviews.md

## What is Acrobits?

Make voice and video calls, send messages, and stay connected with Acrobits Softphone App, a powerful and feature-rich SIP softphone designed for all your calling needs.

BEFORE YOU BUY

Acrobits Softphone is a SIP client app. It does not come with phone service: you sign in with the SIP account your VoIP provider, PBX or employer gives you. Note: this app does not support call transfer or conference calling.

Acrobits Softphone works out of the box with many of the most popular VoIP providers and Bluetooth devices on the market. If you already have SIP service, from work or from any VoIP company, you are ready to go.

It brings all the popular features you expect from a SIP app, including support for 5G, voice and video calling, push notifications, call handover between WiFi and data, multi-device compatibility, lifetime access to support and updates, and more.

Keep a work line separate from your personal number. Carry a home-office extension in your pocket, or call over WiFi while traveling. Calls run over WiFi and mobile data, so your sip phone works wherever you have a connection, at home or abroad.

Bring the account you already have. Acrobits Softphone is a standards-based SIP client, so it registers with Asterisk, FreePBX, 3CX, hosted PBX platforms and everyday business VoIP services alike. Sign in with your SIP account and you have a business softphone dialer that carries your work line anywhere. Encrypted SIP calling keeps every conversation private.

Calls stay clear with support for popular audio standards, including Opus, G.722, G.729, G.711, iLBC, and GSM. Need video? It goes up to 720p HD with both H.264 and VP8. Pair it with the Bluetooth headsets and car kits you already use. Push notifications do the waiting, so the app stays reachable in the background. And voice is not the whole story: send messages from the same app when a call is too much.

You can set it up your way, with custom call settings, ringtones, and UI options.

And because it follows open standards, you are never locked in. Switch providers whenever you like and keep the same app, the same contacts, and the same settings.

Acrobits Softphone makes it easy to communicate with friends and family on any device. And it runs on virtually all iPhones and iPads.

Don't worry about hidden fees or subscriptions. You pay once, and lifetime support and updates are included. Secure VoIP is part of the deal rather than an upgrade. Try it today, and see why softphone users have trusted Acrobits since 2009.

## Key features

- Voice and video calling
- Messaging
- SIP client
- Push notifications
- Call handover (WiFi/data)
- Customizable UI and settings
- HD video support

## Pricing and in-app purchases

Base price: $6.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ZRTP For Outgoing Calls | $24.99 | one-time |


## Chart rankings

- #57 in Top Paid · Productivity (US App Store)

## What do users think of Acrobits?

Reviews of Acrobits are mostly positive: the Productivity app is rated 4.2/5 from 47 App Store ratings. What users like most: amazing, great technical support. Top complaints: no microphone support, deduct subscription without inform user. Summarized from real user reviews.

**Pros**

- 🚀 Amazing
- 👍 Great technical support
- 🚀 Works seamlessly
- 👍 Excellent app
- 🚀 Reliable and works great
- 👍 Definitely on of the better SoftPhonee
- 🚀 Excellent softphone
- 👍 Excellent on iPad 2
- 🚀 Awesome app very happy realize after using several week!
- 👍 Exceptional sound quality
- 🚀 Works over 3G!  Support is great.
- 👍 Best iPod Touch Voip Application
- 🚀 Best call quality, performance & reliability over VPN
- 👍 Amzing and works well
- 🚀 Great App

**Cons**

- 🐛 No microphone support.
- 💰 Deduct subscription without inform user
- 🔒 No option to block calls
- 💤 Crashes instantly on os 10
- 🐛 Crashes instead of connecting to call when opening from push notification or manually from home screen!!!
- 🐛 Noisy & Breaking up
- 🔋 Draining battery

**Commonly reported bugs**

- Crashes on open in iOS 9.3
- Keeps wiping out all settings and history
- Deletes configuration randomly
- Failed to received CallerID
- Periodically disables itself
- Push doesn't work
- Cannot attend calls when phone is locked

**Most requested features**

- SMS support
- Ability to block calls
- Customizable ringtones
- Conference calling
- Ability to select original iPhone ringtones
- Dark mode option
- Landscape mode for tablets

## Is Acrobits safe?

Acrobits: VoIP SIP Softphone appears mostly safe based on user ratings. The AppsHunter Safety Score for Acrobits is 80 out of 100. This assessment is based on 47 user ratings, with an App Store average of 4.2 out of 5. Of 47 App Store ratings, 78.7% point to a safe experience, 4.3% suggest some concerns, and 17.0% point to a risky experience.

## Is Acrobits legit?

Acrobits: VoIP SIP Softphone appears to be a legitimate app. The AppsHunter Legitimacy Score for Acrobits is 83 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 735)

All indexed reviews: https://appshunter.io/ios/app/acrobits-voip-sip-softphone/id314192799/reviews.md

### 3/5 — Bedingt nutzbar

*2026-08-21*

Eigentlich ein recht nützliche App, aber …
die App funktioniert im eigenen Wlan ganz gut, aber halt nicht im Mobilnetz, wenn die App geschlossen ist und der Sperrbildsxhirm aktiv ist. Dafür war es aber eigentlich gedacht. Anrufen klappt, aber halt nicht angerufen werden, wenn man unterwegs ist und nicht aktiv davor sitzt, die App nicht aktiv ist und das iPhone in der Tasche steckt. Das gleiche erreiche ich auch mit Ftitz!fon, ohne die Fritzbox zu vergewaltigen und alles zu öffen für das Internet. Schade, hatte mir mehr davon versprochen. Daher wieder gelöscht, Fritzbox wieder geschlossen  für Zugang von aussen und Fritzfon mit Wireguard wieder aktiviert. App gelöscht, geärgert und Widerruf an Apple geschickt. Wollte nicht 7,99€ in den Müll schmeissen.

**Developer response:** Das sollte so nicht sein – eingehende Anrufe sollten auch bei gesperrtem iPhone und geschlossener App funktionieren. Bitte kontaktieren Sie uns unter support@acrobits.net, damit wir Ihre Konfiguration prüfen können. Wenn möglich, senden Sie uns auch ein SIP-Log mit.

### 1/5 — 이번 업데이트가 실행되지 않습니다

*2026-06-26*

오늘 업데이트 했는데 앱이 실행되지 않습니다 
수정해 주세요

**Developer response:** 안녕하세요. 업데이트 후 앱이 실행되지 않아 불편을 드려 죄송합니다. 25.3.92 버전에서 앱이 실행되지 않는 문제가 있었고, 이후 업데이트에서 수정되었습니다. App Store에서 최신 버전으로 업데이트해 주시면 정상적으로 실행됩니다. 그래도 문제가 계속되면 acrobits.net/support 로 iOS 버전과 기기 모델을 알려주시면 바로 도와드리겠습니다. 감사합니다.

### 1/5 — Useless

*2026-06-24, version 25.3.89*

Useless, does not register on local net to asterisk. No push on vpn. Expensive and totally useless.

### 1/5 — Falsely Advertised

*2026-06-19*

States right in the screenshot that it supports messaging. It does not.

**Developer response:** Acrobits Softphone does support messaging, but it requires your VoIP provider to have messaging enabled on their platform. The app itself does not provide messaging independently - it depends on your service provider's configuration.

If your provider supports it and messaging still isn't working, we'd like to help. Please reach out to your VoIP provider first, and if the issue persists, contact us at support@acrobits.net with your setup details

### 5/5 — Самое лучший SoftPhone!

*2026-06-13, version 25.3.89*

«Считаю, что этот SoftPhone — один из самых надежных и стабильных среди всех существующих. Тем не менее, хотелось бы улучшить эргономику и юзабилити более современным, так же саму клавиатуры набора номера, сделав её раскладку более привычной, например, как на iPhone, было бы прекрасно сделать дизайн под 26 версию IOS, добавить жидкое стекло. Было бы удобно добавить возможность скрывать неиспользуемые вкладки (такие как «Избранное» или «Контакты»), а также настраивать внешний вид: устанавливать собственный фон и рингтон, добавить возможность менять цвет кнопки , фон, устанавливать свои ринг - тоны на звонок. Спасибо за вашу работу!»

### 5/5 — Reliable, one time fee

*2026-05-23, version 25.3.76*

It's a reliable soft phone, for your existing sip provider with no recurring fees for their app. Works well on WiFi or on lte/5g in an urban area, the only feedback I'd have is a super minor point: the icon always throws me off because nothing about it says "dialer" so I have to hunt for it every time I use it because I forget what it looks like .

### 2/5 — Der Link zum App-Support geht nicht ☹️

*2026-04-03*

Wie kann ich den Support erreichen? Auf  der iWatch werden eingehende Anrufe nicht angezeigt, wohl aber verpasste Anrufe 🤔

Mittlerweile verliert die App mehrmals am Tag die Verbindung 😬

**Developer response:** Sie erreichen unser Support-Team unter support@acrobits.net Bitte senden Sie uns Ihr Gerätemodell, die App-Version und, wenn möglich, ein SIP-Log, damit wir die Verbindung und die Apple-Watch-Benachrichtigungen genauer prüfen können.

### 1/5 — 電話応答したら応答画面が二重になってどこからかかってきたかわからんです！

*2026-03-23*

電話応答したら応答画面が二重になってどこからかかってきたかわからんです！

**Developer response:** ご不便をおかけして申し訳ございません。状況を詳しく確認したいので、support@acrobits.net までご連絡ください。可能であれば、端末情報とアプリのバージョンもお知らせください。

### 5/5 — Excellent Skype replacement

*2026-03-15, version 25.3.58*

Fantastic app. Was looking for a solution to keep my UK number following the demise of Skype so loaded this app with an account from www.aa.net.uk (ported Skype number). Works perfectly, excellent call quality, no battery drain issues, recommended

### 1/5 — 通話できない事は8割以上です

*2026-02-22*

Wi-Fi環境も良く、（数値でも確認）、ネット環境も良い場所でも、こちらの声が相手側に聞こえない事が多いです。　非常に困ってます

**Developer response:** ご不便をおかけして申し訳ございません。片側通話の原因を詳しく確認したいので、support@acrobits.net までご連絡いただき、可能であればSIPログもお送りください。

## Frequently asked questions about Acrobits

### What is Acrobits Softphone?

Acrobits Softphone is a SIP client that allows you to make voice and video calls, send messages, and stay connected. It is designed to work with your existing VoIP provider or PBX that supports standard SIP clients, offering a feature-rich calling experience.

### What are the key features of Acrobits Softphone?

Key features include voice and video calling, messaging, push notifications, call handover between WiFi and data, multi-device compatibility, and support for popular audio and video codecs. It also offers extensive customization options for SIP call settings and the user interface.

### How much does Acrobits Softphone cost?

The app is available for a one-time fee, which includes lifetime access to support and updates. There are no hidden fees associated with the purchase.

### What devices is Acrobits Softphone compatible with?

This SIP calling app is compatible with virtually all iPhones and iPads. It also offers out-of-the-box support for many popular Bluetooth devices.

### Can I use Acrobits Softphone for conference calls or call transfers?

No, this app does not support call transfer or conference calling features. Its primary focus is on reliable individual voice and video calls, messaging, and connectivity with your SIP provider.

## Version history (last 5 releases)

### 26.1.19 — 2026-10-26

- Stability improvements and minor bug fixes

### 26.1.18 — 2026-10-21

- Fixed duplicate missed-call notifications

### 26.1.15 — 2026-10-15

- Improved back-to-call behavior in the app

### 26.1.12 — 2026-10-10

- Fixed DTLS 1.2 transcript hashing issue
- Fixed a crash when opening the app after updating to 26.1.8

### 26.1.8 — 2026-10-06

- Fixed canceled calls appearing as failed calls
- Fixed the Contacts permission prompt interfering with age verification
- Fixed Backup and Restore functionality
- Fixed call-screen controls not appearing
- Improved translations
- Removed a redundant button from the Restore Configuration dialog

## Apps similar to Acrobits

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Zoiper Premium voip soft phone](https://appshunter.io/ios/app/zoiper-premium-voip-soft-phone/id787863350) | 3.5 (132) | $4.99 | Productivity |
| [Cloud Softphone](https://appshunter.io/ios/app/cloud-softphone/id567475545) | 3.4 (78) | Free | Productivity |
| [Zoiper Lite voip soft phone](https://appshunter.io/ios/app/zoiper-lite-voip-soft-phone/id438949960) | 4.4 (1,674) | Free | Productivity |
| [Bria - VoIP Softphone](https://appshunter.io/ios/app/bria-voip-softphone/id1074064248) | 4.5 (997) | Free | Productivity |
| [CLINQ](https://appshunter.io/ios/app/clinq/id1640081228) | — | Free | Productivity |
| [Nextcloud Notes](https://appshunter.io/ios/app/nextcloud-notes/id813973264) | 2.2 (95) | Free | Productivity |

## More apps by Acrobits

- [Groundwire: VoIP SIP Softphone](https://appshunter.io/ios/app/groundwire-voip-sip-softphone/id378503081)

All apps by Acrobits: https://appshunter.io/developer/314192802

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*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 2026-10-29.*