Comparison

Fixed Line vs Crown Centrex

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

Head to head
About

Fixed Line

Transform your smartphone into a mobile extension of your virtual PBX. Make and receive calls worldwide using your landline number, accessing all your PBX features on the go. This app requires an active Fixed Line System account to function.

Highlights
  • Mobile PBX extension
  • Worldwide landline calls
  • Account management
  • Full telephony features
  • Contact list integration
  • Call journal
  • Team view & presence
  • Chat and group chat
Features
Read full description

The mobile fixed line is a modern communication service from the pioneer and technology leader in the field of unified communication - UNICOPE. Get your telephone system to your phone. With this app you can use your smartphone as a mobile extension of your virtual PBX. Start and receive worldwide calls with your landline number so that you can telephone cost-efficient and mobile with UNICOPE. Take advantage of the functions of your PBX and all the features of Fixed Line. ++ Note: The Fixed Line-app only works in combination with an active account on the Fixed Line System. ++ TOP-Features: Account management - Accounts are automatically created by autoprovisioning - Add, edit and delete accounts All telephony features - Answer, hang up, consultation, hold, transfer, and connect - Phone-conference - Dial by number - Dial from contact list - Dial from call journal - Dial from team view - Dial from chat - Dial with Mobile Network (GSM) - Call mute, switch to speaker - Call signaling by sound and vibration - Number resolution incl. contact image from local contacts - Number resolution from PBX contacts Contact list - Displaying local contacts - Call and email from contact details - Access to server address book - search function Call journal - Display all calls (combined with landline) - Contacts resolution - Call and contact details - Filter for all or only missed calls Team View - Favorites - All employees sorted by departments - call option in detail-view - possibility to send e-mails Messages (Chat) - Conversation overview - Send and receive chat messages - Group Chat Presence - See the presence of all your colleagues General - Copy-Feature for almost data - Diverse DND Modes - GSM Mode - Callthrough-Mode

About

Crown Centrex

Transform your smartphone into a mobile extension of your virtual PBX. Make and receive calls worldwide using your landline number for cost-efficient and mobile communication. Access all the features of your Gamma Cloud PBX system directly from your device.

Highlights
  • Smartphone as mobile PBX extension
  • Worldwide calls with landline number
  • Cost-efficient mobile calling
  • Access to PBX features
  • Gamma Cloud PBX integration
Features
Read full description

Crown cetrex is a modern communication serviceof Gamma. Get your telephone system to your phone. With this app you can use your smartphone as a mobile extension of your virtual PBX. Start and receive worldwide calls with your landline number so that you can telephone cost-efficient and mobile. Take advantage of the functions of your PBX and all the features of Gamma Cloud PBX

Screenshots

Fixed Line4 screens
Crown Centrex3 screens

Verdict

The call

The clearest difference is review sentiment: Fixed Line at 40% against Crown Centrex's 0%. Fixed Line also leads on update cadence (every 2 months vs every 6 months). On price, ads, in-app purchases and monetization model 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

Fixed Line ships an update every 2 months, Crown Centrex every 6 months. The most recent releases landed on June 24, 2026 and August 23, 2026 respectively.

Scorecard2 real differences · 8 level
Fixed Line versus Crown Centrex: the parameters behind the verdict, then further details
ParameterFixed LineCrown Centrex
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews40.0% of reviews — better0.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size34 MB32 MB
Age rating4+4+
DeveloperUNICOPE GmbHGamma Communications GmbH

Customer experience

Fixed Line

Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

Crown Centrex

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Fixed Line

No in-app purchases

None

Crown Centrex

No in-app purchases

Questions

Is Fixed Line free?
Fixed Line is free to download, with no in-app purchases.
Is Crown Centrex free?
Crown Centrex is free to download, with no in-app purchases.
Do Fixed Line or Crown Centrex have ads?
Neither Fixed Line nor Crown Centrex shows ads.
Which is updated more often, Fixed Line or Crown Centrex?
Fixed Line ships an update every 2 months, and Crown Centrex every 6 months. Most recently, Fixed Line was updated on June 24, 2026 and Crown Centrex on August 23, 2026.

Other comparisons