Comparison

Zfone vs OwlPhone

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Simple SIP calling

About

Zfone

Read full description

Make voice and video calls, send messages, and stay connected with the Zfone Softphone App. A powerful and feature-rich free SIP softphone designed for all your calling needs, offering exceptional audio quality and seamless communication. It includes call forwarding, call transfer, free calls between app users, and call hold, ensuring you stay connected and in control. With customizable settings and push notifications, the app delivers a personalized experience.

About

OwlPhone

Features

Read full description

OwlPhone is a clean, easy-to-use VoIP phone app. Connect to any SIP provider, make and receive calls, and manage your contacts — all from a simple, intuitive interface. Features: • Make and receive calls over any SIP provider • Device contacts integration with caller ID matching • Call history with missed, outgoing, and incoming calls • Configurable media encryption (SRTP, ZRTP, DTLS) • Voicemail waiting indicator • Country code auto-prefix • CallKit integration for native call experience

Screenshots

Zfone4 screens

OwlPhone3 screens

Verdict

The call

The clearest difference is update cadence: OwlPhone at every 4 weeks against Zfone's every 10 months. Zfone's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Zfone ships an update every 10 months, OwlPhone every 4 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 4 level

Zfone versus OwlPhone: the parameters behind the verdict, then further details
Parameter	Zfone	OwlPhone
Price	Free	Free
Update frequency	Every 10 months	Every 4 weeks — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone	iPhone
Requires iOS	16.0 — better	18.0
Further details — not scored
Size	116 MB	53 MB
Age rating	17+	4+
Developer	Telco Depot Inc	Paul Hinks

In-app purchases

None

Zfone

No in-app purchases

None

OwlPhone

No in-app purchases

Questions

Is Zfone free?

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

Is OwlPhone free?

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

Do Zfone or OwlPhone have ads?

Neither Zfone nor OwlPhone shows ads.

Which is updated more often, Zfone or OwlPhone?

Zfone ships an update every 10 months, and OwlPhone every 4 weeks. Most recently, Zfone was updated on October 24, 2026 and OwlPhone on October 24, 2026.