KATSAN vs Smart World
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KATSAN
This personal guardian app enhances home security using AI and computer vision. It monitors your neighborhood for potential threats and learns your routines to better protect you and your loved ones, even when you're away.
- AI-powered security monitoring
- Computer vision software
- Personal guardian for loved ones
- Neighborhood safety alerts
- Learns user routines
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There are various people and public cars roaming around your neighborhood every day. How can you be sure that your house is safe? Introducing a personal guardian that protects and cares for you and your loved ones. KATSAN starts with a mission to overcome a human limitation in the current security system and later develops into a virtual guardian that will enhance security system and living experience within the gated communities through our special computer vision software and ai algorithm. The more you engage with KATSAN, the better it learns how to support you. Let KATSAN protect your home and your loved ones whether you are with them or not.
Smart World
Manage your entire home buying journey from pre-sale to post-transfer on a single platform. Track project progress, make down payments, and access other convenient features for a seamless experience.
- Pre-sale to after-sale management
- Project progress tracking
- Down payment processing
- Convenient payment features
- Single platform access
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Fulfill Your Living Experience in One App with SMART WORLD Designed to cover all homecare needs from day one to daily living. Simple, convenient, and easy for everyone to use. - Easy Tracking: Check updates, monitor details, and pay all project expenses effortlessly. - Curated Home Services : A handpicked selection of quality home care services to meet every need. - Peace of Mind Security : Comprehensive residential security systems you can trust. - Seamless Convenience : All essential residential services and features gathered in one place for perfect living.
Screenshots
Verdict
The clearest difference is review sentiment: Smart World at 60% against KATSAN's 50%. KATSAN's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.4). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KATSAN ships an update every 3 weeks, Smart World monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | KATSAN | Smart World |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (253 ratings) — better |
| Positive reviews | 50.0% of reviews | 60.0% of reviews — better |
| Number of ratings | — | 253 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 28 MB | 191 MB |
| Age rating | 4+ | 4+ |
| Developer | AP (THAILAND) PUBLIC COMPANY LIMITED | Vaari |
Customer experience
KATSAN
Smart World
In-app purchases
KATSAN
No in-app purchases
Smart World
No in-app purchases
