KTT 자가보안 vs BrewFocus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KTT 자가보안
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KTT 자가보안 모바일 어플리케이션은 네트워크를 이용하여 원격 지점을 경계, 감시할 수 있는 애플리케이션입니다. 외부에서도 쉽게 사업장의 상태를 확인하고 제어할 수 있습니다. * 주요 기능 - FHD 영상 실시간 모니터링 & 저장 - 실시간 이벤트 감지 - 원격 경계/해제 기능 - 양방향 통화 기능
BrewFocus
This app simulates a cafe environment to help you focus. Choose your virtual drink to set a focus session duration and enjoy ambient sounds and changing views to boost productivity.
- Cafe ambience simulation
- Customizable focus session timer
- Ambient soundscapes
- Dynamic visual scenes
- Focus history and stats
- Multiple seating views
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You pack your laptop and walk to a café — not because you need coffee, but because you can't focus at home. The hum, the clatter, the stranger typing across the room. Somehow, that's where the work happens. BrewFocus is that café — open whenever you need it. HOW IT WORKS Open the door. Order your drink — and your drink is your focus session. Espresso for a quick sprint. Pour over for the long haul. Grind the beans, take a seat by the window, and start. Then just work. The café hums around you. Your coffee slowly empties. When the cup runs out, you're done. THE RITUAL • Stepping inside — a quiet café by the sea, and the camera moves in • Ordering a drink — espresso runs 25 minutes, hand drip runs 3 hours • Grinding the beans — the sound that tells your brain it's time • Choosing a seat — window table, stool across the room, a spot at the bar. Every seat, a different view • Watching the coffee go down — the time you have left isn't a number, it's in the cup WHY IT WORKS Your brain doesn't need more willpower. It needs the right environment. A moderate hum of café noise can boost creative thinking — the "Café Effect." BrewFocus rebuilds it: the ambience, the light, the view out the window. You're not staring at a countdown. You're sitting in a café, getting things done. WHAT'S INSIDE • A living café — waves outside the window, trees swaying in the woods. Not a still image, but a scene that actually moves • A view that changes with your seat — sit by the window and you face the sea; sit at the bar and you face the counter • A cup that empties — you watch time pass instead of counting it • Coffee order receipts — a record of every session • Ambient sound — café noise, rain, waves, forest, fireplace, lo-fi A café is a "third place" — not home, not the office. Somewhere you go to get into your own head. Now you can go there anytime. SUBSCRIPTION DETAILS • Subscription plans: BrewFocus Premium — Yearly (auto-renews yearly) / Monthly (auto-renews monthly) • Price: $19.99 per year or $3.99 per month (prices may vary by region) • A subscription unlocks all ambient sounds and focus music, plus full focus history and stats. • Payment will be charged to your Apple Account at confirmation of purchase. • Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. • To cancel, go to iPhone Settings → your Apple Account → Subscriptions and select "BrewFocus Premium". Terms of Use (EULA): https://shocking-clover-8f4.notion.site/Focus-Coffin-Terms-of-Service-39cb4564dcb7815fa361e2a36f399ee1 Privacy Policy: https://shocking-clover-8f4.notion.site/Focus-Coffin-Privacy-Policy-39cb4564dcb7819abdc9cc20db9bed48
Screenshots
Verdict
The clearest difference is in-app purchases: KTT 자가보안 at none against BrewFocus's 3. KTT 자가보안 also leads on iOS requirement (11.0 vs 17.0). BrewFocus's advantage is update cadence (weekly vs every 9 months). On price, ads and device support 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. BrewFocus sells 3 in-app purchases, starting at $3.99 per month. KTT 자가보안 asks for nothing beyond the download.
KTT 자가보안 ships an update every 9 months, BrewFocus weekly. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.
| Parameter | KTT 자가보안 | BrewFocus |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 9 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 703 MB |
| Age rating | 4+ | 4+ |
| Developer | MGV Security System | HYUNG SOON CHOI |
In-app purchases
KTT 자가보안
No in-app purchases
BrewFocus
- Monthly$3.991 Month
- Yearly$19.991 Year
- Lifetime$29.99









