Callthru vs Duzzcall
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Callthru
Read full descriptionHide full description
For OMNIVIGIL Solutions IP telephony service customers, our Callthru application uses the cell phone voice plan, so as not to increase data usage and costs whether the customer is on his home network or roaming. This applies to both incoming and outgoing calls. This cellular bridge offers remarkable connection stability, as well as using your offices telephone caller id even when calls are made from your mobile. In addition, you can access the internal extensions directory, which allows you to make an internal call as if you were in the office. Note we suggest combining this paid service with an unlimited calling plan with your mobile service provider, as regular calling charges still apply. If you have a limited plan with your mobile service provider, let us say 2000 minutes, time spent on calls with the Callthru application still count towards that limit.
Duzzcall
Read full descriptionHide full description
A VoIP calling app.
Screenshots
Verdict
The clearest difference is iOS requirement: Callthru at 10.0 against Duzzcall's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.
| Parameter | Callthru | Duzzcall |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 10.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 38 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | OmniVigil Solutions | Duzzcall Pvt Ltd |
In-app purchases
Callthru
No in-app purchases
Duzzcall
No in-app purchases









