Sdk phone vs Bual CloudPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sdk phone
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Heyday Phone allows you to make calls between extensions of the same company as well as adapting specific functionalities of a company such as transferring calls and placing a call on hold when necessary.
Bual CloudPhone
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Business Phone, VoIP and more
Screenshots
Verdict
The clearest difference is update cadence: Bual CloudPhone at every 3 months against Sdk phone's every 17 months. Sdk phone's advantage is iOS requirement (12.3 vs 17.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sdk phone ships an update every 17 months, Bual CloudPhone every 3 months. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.
| Parameter | Sdk phone | Bual CloudPhone |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 17 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.3 — better | 17.6 |
| Further details — not scored | ||
| Size | 18 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | heyday dev | BUAL |
In-app purchases
Sdk phone
No in-app purchases
Bual CloudPhone
No in-app purchases
