VertiCall vs Flex by Grosvenor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VertiCall
This mobile app extends your existing phone system, functioning as a virtual extension. Easily manage calls, transfer them to other extensions, and make outbound calls using your work number as the Caller ID without complex network configurations.
- Virtual phone extension
- Call transferring
- Outbound calls with work Caller ID
- Simple login
- No network changes required
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A mobile extension for all VertiCall-compatible phone systems. The app acts like any other extension on your phone system, allowing you to perform common tasks such as transferring calls to another extension or making outbound calls with your work number as the Caller ID. Unlike many other mobile softphones, VertiCall just works. You shouldn't have to change your network or fill out pages and pages of complicated settings. Simply log in with the username and password provided by your phone system vendor, and away you go!
Flex by Grosvenor
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Provides mobile access and visitor passes to Grosvenor buildings, along with a social wall and events calendar to stay up to date with the latest news.
Screenshots
Verdict
VertiCall and Flex by Grosvenor are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
VertiCall ships an update every 2 months, Flex by Grosvenor monthly. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | VertiCall | Flex by Grosvenor |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 32 MB | 194 MB |
| Age rating | 4+ | 4+ |
| Developer | Sipcentric Ltd. | SMART SPACES GLOBAL LTD |
In-app purchases
VertiCall
No in-app purchases
Flex by Grosvenor
No in-app purchases
Questions
Is VertiCall free?
Is Flex by Grosvenor free?
Do VertiCall or Flex by Grosvenor have ads?
Which is updated more often, VertiCall or Flex by Grosvenor?
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