Zoiper IAX SIP VOIP Softphone APK is a free communication app for Android by Securax EOOD. Reliable, secure VoIP softphone for SIP & IAX. Low battery, high call quality. On this page you can get the latest version 2.27.3, read what it offers and follow a simple install guide.
What Is Zoiper IAX SIP VOIP Softphone APK?
Zoiper IAX SIP VOIP Softphone belongs to the Communication category and is built by Securax EOOD. It has already reached 5,000,000+ installs on Google Play with an average rating of 4.4/5 from 76,979 ratings, which shows how many people rely on it every day.
Zoiper is a reliable and battery-friendly VoIP softphone that lets you make high-quality voice calls over Wi-Fi, 3G, 4G/LTE, or 5G networks. Whether you’re a remote worker, digital nomad, or VoIP enthusiast, Zoiper is the go-to SIP client for smooth and secure communication — without any ads.
📞 Supports both SIP and IAX protocols 🔋 Low battery usage with excellent stability
Downloading the Zoiper IAX SIP VOIP Softphone APK file lets you install the app directly, update it on your own schedule and keep a backup of the version that works best on your phone.
Key Features of Zoiper IAX SIP VOIP Softphone APK
- 🎧 Bluetooth, speakerphone, mute, hold
- 🎙️ HD audio quality — even on older devices
- 🎚️ Wideband audio support (including G.711, GSM, iLBC, Speex)
- 📲 Need reliable incoming calls at all times?
- This optional paid feature ensures you receive calls even when the app is closed — perfect for professionals and frequent travelers.
- 🔧 For Providers & Developers
Zoiper IAX SIP VOIP Softphone App Information
| App name | Zoiper IAX SIP VOIP Softphone |
| Package | com.zoiper.android.app |
| Category | Communication |
| Developer | Securax EOOD |
| Latest version | 2.27.3 |
| Requires Android | 6.0 |
| Installs | 5,000,000+ |
| Rating | 4.4/5 from 76,979 ratings |
| Last updated | October 28, 2026 |
| Price | Free |
How to Download and Install Zoiper IAX SIP VOIP Softphone APK
- Scroll to the download button on this page and tap it to save the Zoiper IAX SIP VOIP Softphone APK file.
- Open Settings on your phone and allow installs from your browser or file manager when asked.
- Open the downloaded file and tap Install.
- Wait a few seconds, then tap Open to start Zoiper IAX SIP VOIP Softphone.
- Switch the unknown-sources permission back off to keep your phone protected.
What’s New in Zoiper IAX SIP VOIP Softphone 2.27.3
v2.27.3. Updated for Android 16. New IP version preference: Auto / Prefer IPv4 / Prefer IPv6 (Settings > Advanced > Network). Device / Activation ID added to Diagnostics — tap to copy. Updated Google Play Billing. The listing was last updated on October 28, 2026.
Tips for the Best Experience with Zoiper IAX SIP VOIP Softphone
- Keep at least 500 MB of free storage so Zoiper IAX SIP VOIP Softphone can install and update smoothly.
- Use a stable Wi-Fi connection when you download the file or open the app for the first time.
- Grant only the permissions that Zoiper IAX SIP VOIP Softphone really needs and review them from time to time.
- Restart your phone after a big update if the app feels slow or freezes.
Device compatibility
Zoiper IAX SIP VOIP Softphone works on phones and tablets running Android 6.0 or higher. Older devices may run it a little slower, so close background apps if you notice lag.
Is Zoiper IAX SIP VOIP Softphone APK Safe to Use?
Zoiper IAX SIP VOIP Softphone is the same app that is published on the official Google Play listing. Always download from a source you trust, keep your phone updated and scan files with a security app if you are unsure.
Looking for something similar? Browse our Communication apps or discover more free Android apps.
Zoiper IAX SIP VOIP Softphone FAQ: Common Questions Answered
Is Zoiper IAX SIP VOIP Softphone APK free to download?
Yes. Zoiper IAX SIP VOIP Softphone is free to download and use. Some features may offer optional in-app purchases.
What is the latest version of Zoiper IAX SIP VOIP Softphone?
The latest version listed here is 2.27.3. It was last updated on October 28, 2026.
Which Android version does Zoiper IAX SIP VOIP Softphone need?
Zoiper IAX SIP VOIP Softphone needs Android 6.0 or newer to run properly.
How do I update Zoiper IAX SIP VOIP Softphone?
Come back to this page for the newest file, download it and install it over the old version. Your data stays in place.
Final Thoughts on Zoiper IAX SIP VOIP Softphone
If you want a reliable communication app, Zoiper IAX SIP VOIP Softphone APK is worth installing. Use the button above to get version 2.27.3 and enjoy everything Zoiper IAX SIP VOIP Softphone has to offer.
