VoipSwitch PBX vs CSS Microtec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VoipSwitch PBX
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This app must be registered to VoipSwitch telephony system. All users must already have an account to use the softphone. The VoipSwitch PBX softphone turns your iOS device into a full-featured VoIP phone in our Voip telephony system. The app connects your iOS device to your office phone system and enables you to make and receive calls from your office extension as well as easily transfer calls. - Secure encrypted calls - Company directory - Voicemail - Instant messaging - Office Extension Dialing - File sharing VoipSwitch PBX is a VoIP service provider that is focused on offering high quality, scalable, and cost efficient telecommunication solutions. The company is utilizing its proprietary solutions to enable our client to use secure and reliable VoIP-based services which are fully interoperable with other established VoIP standards and systems.
CSS Microtec
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This is the app which will support the engineer manage their services and update solution when they maintain and fix ATM
Screenshots
Verdict
VoipSwitch PBX and CSS Microtec 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.
VoipSwitch PBX ships an update every 4 months, CSS Microtec every 3 months. The most recent releases landed on September 12, 2026 and September 16, 2026 respectively.
| Parameter | VoipSwitch PBX | CSS Microtec |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Voiceserve Ltd | Vanhuy Do |
In-app purchases
VoipSwitch PBX
No in-app purchases
CSS Microtec
No in-app purchases
