| Origin and Operation |
| Manufacturer's Country |
Germany |
Germany |
USA |
USA |
Germany |
Open source, Singapore |
Germany |
Slovenia |
USA |
United Kingdom / Open source |
USA |
| Origin and Operation |
| Self-hosted Windows ServerRun on your own network rather than a third-party cloud |
Yesas a Windows service |
Limitedon-premises as an additional license |
NoMicrosoft cloud only |
NoZoom cloud only |
Limitedon-premises in Enterprise only |
Yesself-hosted ID and relay server |
Limitedon-premises version available |
Yesserver license available |
Yesdirect LAN/VPN connection, no server needed |
Yesdirect connection, optional cloud |
NoMicrosoft cloud only |
| Origin and Operation |
| Self-hosted Linux Server |
Yesas a systemd service, including on Raspberry Pi |
Limitedon-premises as an additional license |
No |
No |
No |
Yesself-hosted ID and relay server |
No |
Yesserver license available |
Limitedonly through third-party software (xrdp) |
Yesdirect connection, optional cloud |
No |
| Origin and Operation |
| Server on Raspberry PiComplete server operation on small ARM64 hardware behind your own router, without a data center |
YesRaspberry Pi 5 (ARM64), online through your own internet connection |
Noon-premises on x64 servers only |
No |
No |
Noon-premises on x64 servers only |
YesID and relay servers run on ARM64 |
No |
Noserver license for x64 only |
No |
YesVNC server included in Raspberry Pi OS |
No |
| Room Communication |
| Room ChatSeveral participants in a shared room |
Yesroom number, multiple participants |
Noone-to-one session |
Yes |
Yes |
Yesthrough the meeting feature |
Noone-to-one session |
Noone-to-one support |
Yesthrough ISL Groop |
No |
No |
No |
| Room Communication |
| Text Chat |
Yesincluding images, up to 4 MB |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
Limiteddepending on variant |
Yes |
| Room Communication |
| File transferSize per file |
2 GB, 200 MB in the browser |
no published limit |
250 GB je Datei |
512 MB per file |
no published limit |
no published limit |
no published limit |
no published limit |
Limiteddrive redirection only |
Limiteddepending on variant |
Nono file transfer |
| Room Communication |
| Camera / Microphone |
Yesmultiple cameras at once + voice |
Limitedaudio only |
Yes |
Yes |
Yes |
Limitedaudio only |
Limitedvoice (VoIP) |
Yes |
Limiteddevice redirection into the session only |
No |
No |
| Remote Support and Documentation |
| Freely Selectable Sharing AreaShare a selected screen area rather than the entire screen, particularly useful for ultra-wide and multiple-monitor workstations |
Yesfreely draggable frame, remembered per monitor (Windows client) |
Noentire screen or monitor only |
Noscreen or window only |
Yesselectable screen area |
Noscreen or window only |
No |
No |
Limiteddepending on version |
Noalways the entire session |
Limiteddepending on variant |
Noentire screen only |
| Remote Support and Documentation |
| Remote Control |
Yesexplicitly granted and revocable at any time |
Yes |
Limitedonly during screen sharing |
Limitedonly during screen sharing |
Yes |
Yes |
Yes |
Yes |
Yesfull session |
Yes |
Yes |
| Remote Support and Documentation |
| Session Recording |
Yeslocal MP4, with chat and transcript files |
Yes |
Yesin the cloud |
Yeslocally or in the cloud |
Yes |
Yeslocally |
Yes |
Yes |
No |
Limitedpaid plans only |
No |
| Remote Support and Documentation |
| Screenshots at the Click of a Button |
Yes |
Yes |
No |
No |
Yes |
No |
Yes |
Yes |
No |
Limiteddepending on variant |
No |
| Platforms |
| Windows Client |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yesincluded in Windows |
Yes |
Yesincluded in Windows |
| Platforms |
| Linux Client |
Yesx64 and ARM64 (Raspberry Pi) |
Yes |
Limitedbrowser only, no desktop app |
Yes |
Yes |
Yes |
No |
Yes |
Limitedas client yes, as host no |
Yes |
No |
| Platforms |
| Web ClientJoin without installation |
Yesfull participation: watch, share and send files |
Limitedbrowser access in higher-tier plans |
Yes |
Yes |
Yes |
Limitedexperimental |
No |
Yes |
Limitedthrough RD Web / Windows App |
Limitedonly through a noVNC gateway |
No |
| Additional Cloud-connected Features – Consider Privacy |
| Live CaptionsTranscribes speech as it happens; room audio is sent to an external speech recognition service |
Yesenabled per room; service selectable, OpenAI (USA) by default |
No |
Yesin the Microsoft cloud |
Yesin the Zoom cloud |
No |
No |
No |
No |
No |
No |
No |
| Additional Cloud-connected Features – Consider Privacy |
| Live TranslationCaptions in each listener's language; everyone reads in their own language without anyone changing the spoken language |
Yeseach participant reads in their own language |
No |
Limitedonly with the organizer's Teams Premium or Copilot license |
LimitedBusiness Plus or higher, or an add-on per user |
No |
No |
No |
No |
No |
No |
No |
| Organization and Costs |
| Reserved Room Numbers/Names |
Yesup to 10 fixed room names per supporter |
Limitedfixed device alias |
Yespersonal meeting room |
Yespersonal meeting ID |
Limitedfixed device ID |
Limitedfixed device ID |
Limitedfixed supporter ID |
Yespermanent session codes |
not applicable; connect using the host name |
not applicable; connect using the host name |
Noone-time code only |
| Organization and Costs |
| PriceApproximate net list prices |
€7 per supporter license per month, plus VAT, one year in advance; free 30-day demo |
from approximately €15/month |
included in Microsoft 365, from approximately €4/user/month |
free up to 40 minutes, Pro from approximately €14/user/month |
from approximately €25/month |
free, Server Pro from approximately €20/month |
from approximately €30/month |
from approximately €25/month; server license available |
included in Windows Pro; RDS CALs for multiple users |
free to approximately €5/device/month |
free, included in Windows |