Comparison

HotSOS Mobile vs KNOW HK

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

Head to head
About

HotSOS Mobile

Empower hotel staff with a mobile solution for service and facilities management. Access service orders, perform inspections, and manage operations on the go to enhance guest stays.

Highlights
  • Service order management
  • Guestroom inspections
  • Public space inspections
  • Role-based access
  • On-the-go operations management
Features
Read full description

HotSOS Mobile extends Amadeus' award winning desktop Hotel Service Optimization System to the field on mobile tablets and smartphones. HotSOS is the premier application for empowering hotel employees to provide guests the best possible stay from a service and facilities perspective. Through HotSOS Mobile, employees and managers can access multiple functions catered to their role within the hotel operations.... The role based access notifies staff of awaiting service orders and allows them to view detailed information and manage pending work better. HotSOS Mobile also gives the ability to generate service orders and perform guestroom or public space inspections and gives department heads and hotel managers a tool to easily manage operations on the go. Please contact hospitality.support@amadeus.com to inquire more about Amadeus' innovative hotel solutions.

About

KNOW HK

This software streamlines hotel housekeeping operations by automating tasks, providing guest preferences, and tracking room status. It helps hotels reduce costs, go green, and improve efficiency for both supervisors and attendants.

Highlights
  • Automates daily housekeeping tasks
  • Provides guest preference information
  • Tracks room attendants and status
  • Manages environmentally friendly cleaning programs
  • Reduces paper consumption and phone calls
  • Offers 360-degree view for supervisors
  • Enables direct room status updates in PMS
Features
Read full description

KNOW HOUSEKEEPING helps automate daily housekeeping activities, resulting in dramatic increase in productivity and large savings in housekeeping costs. This easy-to-use software automates and simplifies a number of time consuming housekeeping tasks like setting the room cleaning sequence, providing attendants with guest preference information, tracking room attendants, updating rooms status in the PMS and so on. The system enables hotels to go green by helping them set up and manage environmentally friendly cleaning programs as standard or based on guest preferences. The software reduces paper consumption and eliminates hundreds of phone calls between the housekeeping desk, floor staff and front office. KNOW HOUSEKEEPING allows the following for housekeeping supervisors: * 360 degree view of the section * Turn around rush rooms faster * Re-assign rooms with a press of a button * Receive inspection alerts * Report a discrepancy * Cater to guest’s special requests * Easy access to check lists & SOPs KNOW HOUSEKEEPING allows the following for housekeeping attendants: * Information on room to clean next * Complete guest info: preferences, specials, pax, etc * SOPs for quick reference * Send alerts to supervisors * Direct room status update in PMS

Screenshots

HotSOS Mobile3 screens
KNOW HK4 screens

Verdict

The call

The clearest difference is rating: KNOW HK at 5.0 against HotSOS Mobile's 2.6. HotSOS Mobile's advantage is ratings volume (58 vs 3). On price, update cadence, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

KNOW HK holds the better App Store score, 5.0 against 2.6. That said, the two scores are not equally well evidenced: HotSOS Mobile has 58 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

HotSOS Mobile ships an update every 4 months, KNOW HK every 2 months. The most recent releases landed on September 24, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
HotSOS Mobile versus KNOW HK: the parameters behind the verdict, then further details
ParameterHotSOS MobileKNOW HK
PriceFreeFree
Rating2.6 (58 ratings)5.0 (3 ratings) — better
Positive reviews4.3% of reviews—
Number of ratings58 — better3
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.012.0
Further details — not scored
Size7 MB43 MB
Age rating4+4+
DeveloperMTechKnowcross Ltd

Customer experience

HotSOS Mobile

All ratings58 ratings
Positive37.9%
Neutral6.9%
Negative55.2%
Written reviews23 reviews
Positive4.3%
Neutral13.0%
Negative82.6%

KNOW HK

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HotSOS Mobile

No in-app purchases

None

KNOW HK

No in-app purchases

Questions

Is HotSOS Mobile free?
HotSOS Mobile is free to download, with no in-app purchases.
Is KNOW HK free?
KNOW HK is free to download, with no in-app purchases.
Which has better reviews, HotSOS Mobile or KNOW HK?
KNOW HK is rated higher. HotSOS Mobile averages 2.6 out of 5 from 58 ratings, while KNOW HK averages 5.0 from 3 ratings.
Do HotSOS Mobile or KNOW HK have ads?
Neither HotSOS Mobile nor KNOW HK shows ads.
Which is updated more often, HotSOS Mobile or KNOW HK?
HotSOS Mobile ships an update every 4 months, and KNOW HK every 2 months. Most recently, HotSOS Mobile was updated on September 24, 2026 and KNOW HK on September 7, 2026.

Other comparisons