Comparison

Campusletter vs 에코

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

Head to head
About

Campusletter

Connect with university peers through anonymous letter exchanges. Share thoughts and feelings, fostering empathy and understanding in a safe, structured environment. Discover new perspectives and build a supportive community.

Highlights
  • Anonymous letter exchange
  • Random partner matching
  • Preference-based communication
  • Daily letter limit
  • Focus on sincerity and empathy
  • Safe space for expression
Features
Read full description

Campusletter is opening a new horizon in communication, bringing a fresh breeze into the lives of university members. This innovative platform allows students to exchange letters anonymously with random partners. Amid the pressures of academics and the routines of daily life, Campusletter offers a new channel for connection, providing opportunities for everything from light everyday interactions to profound and meaningful discussions. At the heart of this service lies sincerity and empathy. Users go beyond details like gender, age, or university affiliation to share genuine thoughts and feelings conveyed through each letter. This fosters true understanding and solidarity among students, offering a valuable means of providing comfort and encouragement when needed. The platform’s operation is simple yet structured. Users can initiate up to five new letters per day, with conversations alternating between matched partners. This system prevents indiscriminate messaging, adding deeper meaning and value to each exchange. Additionally, users can choose their preferences—whether to communicate with people of the same or different gender, or with members of a specific age group or university. Every feature is designed to empower users to communicate at their own pace and in their own style. For some, it’s an opportunity to meet new friends; for others, it’s a safe space to express their thoughts and emotions freely. Campusletter respects individuality and experience, aiming to build a community founded on diversity and inclusiveness. The mission of Campusletter extends beyond merely exchanging letters. It seeks to help university members better understand and connect with one another. Through this service, users can share their experiences, listen to others’ stories, and engage in exchanges that have a positive impact on each other’s lives. Campusletter believes that such communication fosters personal growth and development, contributing to a more cooperative and empathetic society at large. Ultimately, Campusletter aspires to be more than just a messaging app—it aims to become a platform that brings genuine change to the lives of university members. Helping users discover new perspectives through shared stories, inspire each other through deep empathy and understanding—this is the true value that Campusletter strives to achieve.

About

에코

Features
Read full description

앞길이 막막한 밤이 있습니다. 이 회사를 계속 다녀도 될까, 나만 이렇게 헤매는 걸까. Echo는 오늘이 며칠째인지를 축으로 쓰는 익명 한 줄 일기장입니다. 입사일, 독립한 날, 결혼한 날 — 저마다의 시작점에서 며칠이 지났는지가 당신의 좌표가 되고, 그 좌표 위에 남긴 한 줄들이 밤하늘의 별이 됩니다. ◆ 하루 한 줄이면 되는 일기 잘 쓸 필요 없습니다. 이름도, 사진도, 회사명도 없습니다. 익명의 색과 코드만으로, 오늘을 토해내듯 한 줄. 매일 쓰지 않아도 괜찮습니다 — 빈 날은 그냥 하늘의 빈칸입니다. ◆ 나만 보는 일기장이 아닙니다 같은 지점을 지나는 사람들의 일기가 내 한 줄 옆에 함께 떠 있습니다. 입사 501일째에 쓴 내 한 줄 옆에, 다른 사람의 498일째가 있습니다. "나만 그런 게 아니었구나"는 생각보다 큰 위로가 됩니다. ◆ 앞서간 사람들의 일기를 미리 봅니다 1년차의 밤, 3년차의 현타, 5년차의 월요일. 먼저 그 길을 지난 사람들이 남긴 한 줄이 당신이 아직 걷지 않은 구간에 불을 켜둡니다. ◆ 감정 일기로도 씁니다 한 줄에 감정 한 톨(후련·웃픔·막막·두근·뿌듯)을 얹으면 같은 감정이 모인 자리가 성운처럼 은은하게 물듭니다. 성운을 탭하면 그 시절의 목소리들 속으로 미끄러지듯 들어갑니다. ◆ 지금 열려 있는 루트 직장인 · 연애 · 신혼 · 취업 준비 · 프리랜서 · 자취 생활 등 30여 개 가장 두꺼운 곳은 직장인 루트입니다. 원하는 루트가 없다면 앱에서 바로 요청할 수 있습니다. ◆ 조용하고 안전하게 · 실명·이메일·전화번호를 수집하지 않는 완전 익명 · 모든 글은 한 번의 탭으로 신고·가리기, 사용자 차단 지원 · 불쾌한 콘텐츠 무관용 — 신고 누적 시 자동 블라인드 후 운영자 검토 · 내가 남긴 일기와 데이터는 설정에서 언제든 완전 삭제 오늘 밤, 당신의 지점에 한 줄을 남겨보세요. 앞길엔 이미 불이 켜져 있어요.

Screenshots

Campusletter4 screens
에코4 screens

Verdict

The call

The clearest difference is device support: Campusletter at 3 against 에코's 1. Campusletter also leads on iOS requirement (12.0 vs 17.0). 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.

UpkeepUpdate frequency

Campusletter ships an update every 11 days, 에코 weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 6 level
Campusletter versus 에코: the parameters behind the verdict, then further details
ParameterCampusletter에코
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 11 daysWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size47 MB17 MB
Age rating17+12+
DeveloperJAEYONG SHINJunho Lee

In-app purchases

None

Campusletter

No in-app purchases

None

에코

No in-app purchases

Questions

Is Campusletter free?
Campusletter is free to download, with no in-app purchases.
Is 에코 free?
에코 is free to download, with no in-app purchases.
Do Campusletter or 에코 have ads?
Neither Campusletter nor 에코 shows ads.
Which is updated more often, Campusletter or 에코?
Campusletter ships an update every 11 days, and 에코 weekly. Most recently, Campusletter was updated on November 4, 2026 and 에코 on October 31, 2026.

Other comparisons