Comparison

i Sound Level Meter vs 출석왕

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

Head to head
About

i Sound Level Meter

Measure ambient noise levels with your smartphone. Track maximum and minimum decibel readings to understand your sound environment. For best results, a high-performance meter is recommended.

Highlights
  • Measure ambient noise
  • Track max and min values
  • Noise meter functionality
  • Smartphone-based measurement
Features
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The noise meter (noise measuring aparatus). There may be an error of measurement for each smart phone. You can measure how much noise around him. You can check the maximum and minimum values ​​to start You noise measurements. It is recommended to use a high-performance noise meter for accurate noise measurement.

About

출석왕

Features
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출석왕은 학생들의 등교를 게임처럼 만들어주는 출석 체크 앱입니다. 선생님이 반(방)을 만들고 초대코드를 공유하면, 학생들이 매일 아침 출석 버튼을 눌러 등교 순위를 경쟁합니다. 먼저 출석할수록 높은 순위를 받고, 주간·월간 랭킹으로 누적됩니다. [이런 분들에게 추천합니다] - 매달 출석 랭킹 1등부터 원하는 자리를 고르게 해주는 선생님 - 학생들의 자발적인 등교 습관을 만들고 싶은 선생님 - 친구들과 출석 순위를 경쟁하며 아침을 즐기고 싶은 학생 [주요 기능] - 출석 체크: 버튼 한 번으로 출석, 실시간 순위 확인 - 랭킹: 주간·월간 출석 랭킹으로 꾸준한 동기부여 - 통계: 캘린더 + 평균 순위, 출석일, 1등 횟수 등 7가지 통계 - GPS 검증: 학교 반경 내에서만 출석 가능 (선택 설정) - 방 관리: 초대코드로 간편 참여, 멤버 관리, 방장 위임

Screenshots

i Sound Level Meter2 screens
출석왕4 screens

Verdict

The call

The clearest difference is update cadence: 출석왕 at every 4 days against i Sound Level Meter's every 2 months. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

i Sound Level Meter ships an update every 2 months, 출석왕 every 4 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
i Sound Level Meter versus 출석왕: the parameters behind the verdict, then further details
Parameteri Sound Level Meter출석왕
PriceFreeFree
Rating4.4 (38 ratings) — better—
Positive reviews21.8% of reviews—
Number of ratings38 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperEONSOFTTaemin Kim

In-app purchases

None

i Sound Level Meter

No in-app purchases

None

출석왕

No in-app purchases

Questions

Is i Sound Level Meter free?
i Sound Level Meter is free to download, with no in-app purchases.
Is 출석왕 free?
출석왕 is free to download, with no in-app purchases.
Do i Sound Level Meter or 출석왕 have ads?
Both i Sound Level Meter and 출석왕 show ads.
Which is updated more often, i Sound Level Meter or 출석왕?
i Sound Level Meter ships an update every 2 months, and 출석왕 every 4 days. Most recently, i Sound Level Meter was updated on November 9, 2026 and 출석왕 on November 5, 2026.

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