Comparison

CoolGuard vs 단축번호앱

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

Head to head
About

CoolGuard

This app monitors your phone's temperature, providing real-time heat levels and alerts to prevent performance issues and battery aging. It also functions as a customizable night clock with alarms and displays local weather information.

Highlights
  • Live heat level monitoring
  • Heat trend and log with map
  • Customizable alerts and cooling tips
  • Night clock with sleep mode
  • Multiple alarms with system integration
  • Outdoor weather display
  • Lock screen and Dynamic Island widgets
Features
Read full description

CoolGuard keeps an eye on your phone's heat — and at night, it's the clock on your nightstand. A hot iPhone runs slower, its battery ages faster, and in summer it heats up within moments in the sun or while gaming, navigating, or charging. CoolGuard shows you where your phone stands on a four-level scale (Normal, Slightly Warm, Hot, Critical), warns you in time, and tells you what to do. HEAT MONITORING • Live heat level on the main screen, with a color-coded ring and a quick tip • Heat Trend: 1-hour and 24-hour curves in a banded or clean style — drag your finger to read the details • Heat Log with calendar and map: when and where your phone got hot • Alerts from the level you choose: push notifications, sound alerts, quiet hours • Monitor Mode: background monitoring, with a Live Activity on the Lock Screen and in the Dynamic Island • Cooling tips and a carefully curated selection of active coolers NIGHT CLOCK AND ALARM • Sleep Mode: dark screen with just the clock and the outdoor temperature — three sizes, your choice of color • Alarms: up to 10, repeating daily; on iOS 26 and later they ring through the system alarm, even when your phone is silenced • Landscape view: big clock, swipeable alarm bar, brightness slider • Burn-in protection: slow pixel drift and dimming to keep your display safe • 12- or 24-hour clock, with seconds if you like WEATHER • Outdoor temperature, with today's and tomorrow's highs and lows • Weather face in the ring: the sun and moon travel around it from sunrise to sunset • A warning on dangerously hot days WIDGET • Small: thermometer, weather, battery level, clock • Medium: adds the heat trend curve and the date • Works on the Lock Screen, too BATTERY • Battery Health and cycle count, compared month by month with your phone's heat MORE • 50 languages, Celsius or Fahrenheit • Private by design: no ads, no analytics, no accounts — your Heat Log never leaves your phone • Free — you can support development with a tip Note: iOS doesn't expose exact temperatures to apps — CoolGuard shows Apple's four official thermal levels.

About

단축번호앱

Features
Read full description

자주 거는 번호를 큰 버튼으로 모아 두고 바로 전화를 겁니다. 스마트폰이 서툰 부모님께 드리기 좋습니다. ■ 이렇게 씁니다 - 그룹(가족·친구·병원…)을 만들고 그 안에 단축번호를 넣습니다. - 단축번호를 길게 누르면 전화 걸기 화면이 뜹니다. 짧게 누르면 이름·번호·색을 고칩니다. - 설정에서 '짧게 눌러 전화'로 바꿀 수 있습니다. ■ 기능 - 버튼 크기: 크게·보통·작게 - 순서 이동: 그룹과 단축번호의 순서를 바꿉니다. - 주소록에서 가져오기: 연락처에서 한 사람을 골라 단축번호로 만듭니다. - 문자 보내기: 단축번호의 번호로 메시지 작성 화면을 엽니다. - 번호는 입력한 그대로 저장됩니다. 01012345678, 010-1234-5678, +82-2-… 모두 됩니다. ■ 데이터 - 단축번호는 기기 안에만 저장됩니다. 회원가입·서버가 없습니다. 연락처 권한도 쓰지 않습니다. - 광고(홈 아래 배너·설정 화면 맨 아래)와 앱 이용 통계·오류 보고를 위해 Google 서비스가 정보를 수집합니다. 자세한 내용은 개인정보처리방침에 있습니다. 요청·제안은 리뷰로 남겨 주세요.

Screenshots

CoolGuard4 screens
단축번호앱4 screens

Verdict

The call

The clearest difference is in-app purchases: 단축번호앱 at none against CoolGuard's 3. CoolGuard's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement 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. CoolGuard sells 3 one-off in-app purchases. 단축번호앱 asks for nothing beyond the download.

UpkeepUpdate frequency

CoolGuard ships an update weekly, 단축번호앱 every 10 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 7 level
CoolGuard versus 단축번호앱: the parameters behind the verdict, then further details
ParameterCoolGuard단축번호앱
PriceFreeFree
Rating4.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyWeekly — betterEvery 10 days
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size7 MB39 MB
Age rating4+4+
DeveloperNorbert PentekJAEHO OH

In-app purchases

3 purchases

CoolGuard

One-time3
  • Small tip$0.99
  • Medium tip$2.99
  • Large tip$9.99
None

단축번호앱

No in-app purchases

Questions

Is CoolGuard free?
CoolGuard is free to download, with in-app purchases available.
Is 단축번호앱 free?
단축번호앱 is free to download, with no in-app purchases.
Do CoolGuard or 단축번호앱 have ads?
단축번호앱 shows ads; CoolGuard does not.
Which is updated more often, CoolGuard or 단축번호앱?
CoolGuard ships an update weekly, and 단축번호앱 every 10 days. Most recently, CoolGuard was updated on October 23, 2026 and 단축번호앱 on October 8, 2026.

Other comparisons