# Acrobits Softphone vs Abbax

The clearest difference is price: Abbax at Free against Acrobits Softphone's $6.99. Abbax also leads on in-app purchases (none vs 1) and device support (3 vs 1). Acrobits Softphone's advantage is update cadence (every 9 days vs every 2 months) and chart position (#177 vs unranked). On ads there is nothing between them.

Abbax is free to download; Acrobits Softphone costs $6.99 up front. Acrobits Softphone sells 1 one-off in-app purchase. Abbax asks for nothing beyond the download.

Acrobits Softphone ships an update every 9 days, Abbax every 2 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Acrobits Softphone | Abbax |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[4.2 (47 ratings)](https://appshunter.io/ios/app/acrobits-softphone/id314192799/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 67.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Monetization | Paid | — |
| Best chart rank | **#177** | — |
| Size | 63 MB | 80 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Acrobits](https://appshunter.io/developer/314192802) | [Abbax Technologies](https://appshunter.io/developer/1084016519) |

## What reviewers say

### Acrobits Softphone

[App page](https://appshunter.io/ios/app/acrobits-softphone/id314192799)

**Currently charting:** #177 Top Paid · Productivity (US App Store)

This SIP client enables voice and video calls, messaging, and seamless connectivity. It offers extensive provider support, push notifications, and call handover. Customize your calling experience with adjustable settings and enjoy clear audio and HD video.

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

**Features:** Siri integration, Vision Pro support

**In-app purchases (1)**

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

**What reviewers like**

- 🚀 Amazing
- 👍 Great technical support
- 🚀 Works seamlessly
- 👍 Excellent app
- 🚀 Reliable and works great

**What reviewers complain about**

- 🐛 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!!!

**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

**Requested features**

- SMS support
- Ability to block calls
- Customizable ringtones
- Conference calling
- Ability to select original iPhone ringtones


### Abbax

[App page](https://appshunter.io/ios/app/abbax/id1084016520)

**In-app purchases:** none


## Frequently asked questions

### Is Acrobits Softphone free?

Acrobits Softphone costs $6.99, and also offers in-app purchases.

### Is Abbax free?

Abbax is free to download, with no in-app purchases.

### Do Acrobits Softphone or Abbax have ads?

Neither Acrobits Softphone nor Abbax shows ads.

### Which is updated more often, Acrobits Softphone or Abbax?

Acrobits Softphone ships an update every 9 days, and Abbax every 2 months. Most recently, Acrobits Softphone was updated on September 22, 2026 and Abbax on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*