Comparison

SunPBX vs DigitalVoice Plus by CDP

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

Head to head
About

SunPBX

Features
Read full description

SunPBX – это фирменное приложение для облачной АТС от Sunpbx, которое предоставляет удобный и надежный способ совершать звонки через интернет. Простое в использовании приложение позволяет Вам управлять звонками, общаться с клиентами и коллегами, обеспечивая непрерывность рабочего процесса. Идеально подходит для бизнеса, обеспечивая доступ к передовым функциям АТС, где бы Вы ни находились.

About

DigitalVoice Plus by CDP

This app transforms your mobile device into a business phone, enabling high-quality Wi-Fi or cellular calls with features like call transfer and voicemail. It integrates with existing VoIP systems for secure voice, video, and messaging, keeping you connected from anywhere.

Highlights
  • High-quality Wi-Fi/cellular calls
  • Call transfer
  • Voicemail
  • Presence status
  • Secure voice and video calling
  • Team messaging
Features
Read full description

Make high-quality calls over Wi-Fi or cellular data and take advantage of features like call transfer, voicemail, presence status, and push notifications so you never miss an important conversation. The app works with your existing VoIP and SIP system, keeping your communications integrated and manageable. Connect and communicate from anywhere with the Carolina Digital Phone softphone app. Built on industry-leading VoIP and WebRTC technology, this app turns your mobile device into a powerful business phone with secure voice and video calling, messaging, and advanced call features. Whether you are in the office, at home, or on the move, stay reachable on your business number without needing extra hardware. Carolina Digital Phone’s mobile softphone supports secure, encrypted communication and is compatible with modern business tools and systems. Users can collaborate with team messaging, HD voice and video calls, and reliable call handling that keeps pace with today’s work. This app is ideal for professionals, remote workers, customer support teams, and small businesses that need a flexible and affordable way to stay connected. If you need help setting up or have questions about how the app works with your service, call (336) 544-4000 for more information.

Screenshots

SunPBX3 screens
DigitalVoice Plus by CDP4 screens

Verdict

The call

The clearest difference is update cadence: DigitalVoice Plus by CDP at every 2 months against SunPBX's every 13 months. 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

SunPBX ships an update every 13 months, DigitalVoice Plus by CDP every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
SunPBX versus DigitalVoice Plus by CDP: the parameters behind the verdict, then further details
ParameterSunPBXDigitalVoice Plus by CDP
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.615.6
Further details — not scored
Size56 MB79 MB
Age rating4+4+
DeveloperSANDEVDigitalPhone.io

In-app purchases

None

SunPBX

No in-app purchases

None

DigitalVoice Plus by CDP

No in-app purchases

Questions

Is SunPBX free?
SunPBX is free to download, with no in-app purchases.
Is DigitalVoice Plus by CDP free?
DigitalVoice Plus by CDP is free to download, with no in-app purchases.
Do SunPBX or DigitalVoice Plus by CDP have ads?
Neither SunPBX nor DigitalVoice Plus by CDP shows ads.
Which is updated more often, SunPBX or DigitalVoice Plus by CDP?
SunPBX ships an update every 13 months, and DigitalVoice Plus by CDP every 2 months. Most recently, SunPBX was updated on October 25, 2026 and DigitalVoice Plus by CDP on October 24, 2026.

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