NSDBytes product / Hospitality Tech
GMS. Modern guest journeys for existing hotel infrastructure.
GMS digitises the entire guest journey — from pre-arrival registration and digital check-in to mobile room keys and instant feedback — while integrating seamlessly with legacy Property Management Systems. MKL Hospitality Group, the first hotel group running it, reports 80% shorter front-desk queues.

- Product
- GMS
- Status
- Live
- Find it on
- gms.nsdbytes.com
Figures as of September 2026, during the continuing rollout.
01 / What it does
What GMS does.
- Digital pre-arrival registration & check-in
- Mobile room keys via smartphone
- Integrates with standard property management systems (in production at MKL Hospitality Group)
- Guest feedback & satisfaction surveys
- Staff dashboard on an iPad or tablet: reservations, guest stages and tasks
- Multi-property support
02 / How it works
GMS in 6 steps.
An illustrated walkthrough with quiet background music and no narration. Each step is also written out here.
- 1
The reservation arrives from your PMS
GMS reads each booking from the property management system the hotel already runs. Nothing is replaced.
- 2
The guest registers before arriving
A link goes out ahead of the stay. Details and ID are submitted from the guest's own phone.
- 3
Check-in on the guest's own phone
The guest confirms what they already submitted, with no form to fill at the desk and no queue. The front desk follows each stage on an iPad or tablet.
- 4
The room key is on the phone
Once check-in clears, the phone opens the door.
- 5
Staff track every guest on an iPad or tablet
Reservations, who has registered, who is checked in and what still needs doing, on one screen at the front desk.
- 6
Feedback comes back from the guest's phone
A short satisfaction survey, answered on the same phone the guest checked in with.
03 / How it is built
The technology behind GMS.
- Flutter
- Dart
- Node.js
- Express
- MongoDB
- Firebase
- AWS
On this site
A little clarity
GMS, briefly.
What is GMS?
GMS digitises the entire guest journey — from pre-arrival registration and digital check-in to mobile room keys and instant feedback — while integrating seamlessly with legacy Property Management Systems. MKL Hospitality Group, the first hotel group running it, reports 80% shorter front-desk queues.
What are the main features of GMS?
The main features include: Digital pre-arrival registration & check-in, Mobile room keys via smartphone, Integrates with standard property management systems (in production at MKL Hospitality Group), Guest feedback & satisfaction surveys, Staff dashboard on an iPad or tablet: reservations, guest stages and tasks, Multi-property support.
What technologies were used to build GMS?
GMS is built with Flutter, Dart, Node.js, Express, MongoDB, Firebase and AWS.
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