Comparison

Night Letter vs 아우라 Aura

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

Head to head
About

Night Letter

Express unspoken words to those you miss. Receive comforting replies crafted from their remembered personality and shared memories. Experience the joy of analog waiting and a familiar voice delivering heartfelt messages.

Highlights
  • AI-generated replies based on personality
  • Incorporate personal memory keywords
  • Analog waiting experience (approx. 1 hour reply time)
  • Voice playback of replies (Premium/Signature)
  • Customizable recipient profiles
Features
Read full description

Any unsaid words? Receive a reply from someone you miss. An old love that suddenly crosses your mind, A parent in heaven you can no longer reach, Or a beloved pet that crossed the rainbow bridge. Leave your deepest, unspoken longing in a Night Letter. Based on the personality, tone of voice, and special memories you remember, The most comforting and touching reply—just like they would write—will find its way to your night sky. We know it's not truly from them. But in that familiar tone that perfectly understands your heart, You might just find the warm comfort you need to get through the day. [The Special Experience of Night Letter] * Bring 'Them' to Life Choose exactly who you want to receive a reply from. The blunt but deeply caring tone of a father, the playful vibe of an ex, or the affectionate gaze of a dog greeting you with a "Woof!". We capture them exactly as you remember. * Cherish 'Our Memory Keywords' Quietly note down precious memories—like "Eating pizza on a rainy day" or "Taking a photo in front of the carousel." These moments will naturally weave into the reply, bringing an even deeper sense of emotion. * A 1999 Mailbox: The Joy of Analog Waiting In a world where instant messaging takes one second, Night Letter takes a step back. Just like the time it takes for someone to read your letter and thoughtfully press pen to paper, it takes about an hour for your reply to arrive. Experience the nostalgic, heart-fluttering excitement of waiting for a heartfelt letter. * A Heart-Resonating Notification & Familiar Voice Experience the overwhelming emotion when the notification pops up: "A reply has arrived." - Premium: Beyond reading the text, a warm and comforting voice will gently read the letter to you. - Signature: Recreating the very breath, tone, and familiar voice you miss the most, delivering the reply exactly as you remember them. * Highly Recommended For: - Those who deeply miss someone but have no way to reach them. - Those who want to say a final goodbye to a pet that crossed the rainbow bridge. - Those who need a personalized 'pen pal' who perfectly understands their situation. Let us fill your night with emotion, not just technology. Open Night Letter right now and send your very first message. Terms of Use (EULA): https://gazuacup.com/nightletter/nightletter-terms.html Privacy Policy: https://gazuacup.com/nightletter/nightletter-privacy.html

About

아우라 Aura

Features
Read full description

아우라는 주변 사람들이 느끼는 나의 분위기, 성향, 이미지, 관계 속 인상을 익명 응답으로 모아 리포트로 보여주는 앱입니다. 나는 나를 이렇게 생각하지만, 친구들은 나를 어떻게 보고 있을까요? 직장동료나 지인들은 내 분위기를 어떻게 느끼고 있을까요? 아우라는 이런 궁금증을 가볍고 재미있게 확인할 수 있도록 도와줍니다. ■ 아우라에서 할 수 있는 것 1. 내 평가 링크와 QR 공유 아우라에서 나만의 평가 링크와 QR을 만들 수 있습니다. 친구, 지인, 동료에게 링크를 공유하면 익명으로 응답을 받을 수 있습니다. 2. 주변 사람들이 보는 나의 성향 확인 응답이 쌓이면 사람들이 보는 나의 분위기, 성향, 키워드, MBTI 경향을 리포트로 확인할 수 있습니다. 3. 남들이 보는 나의 MBTI 주변인의 선택형 응답을 바탕으로, 사람들이 나를 어떤 MBTI 성향으로 인식하는지 보여줍니다. 4. 셀프검사와 메타인지 비교 내가 생각하는 나와 주변 사람들이 보는 나를 비교해볼 수 있습니다. 내가 느끼는 나와 타인이 느끼는 나의 차이를 확인해보세요. 5. 전화번호 평가 허용 설정 원하는 경우에만 전화번호로 평가받기를 켤 수 있습니다. 전화번호 평가를 끄면, 내가 직접 공유한 링크나 QR을 통해서만 평가를 받을 수 있습니다. 6. 익명 기반 리포트 개별 응답은 그대로 공개되지 않고, 여러 사람의 응답을 모아 집계된 리포트 형태로 보여줍니다. ■ 이런 분들에게 좋아요 - 사람들이 나를 어떻게 보는지 궁금한 사람 - 친구들이 느끼는 내 분위기가 궁금한 사람 - 남들이 보는 내 MBTI가 궁금한 사람 - 내가 생각하는 나와 타인이 보는 나의 차이를 알고 싶은 사람 - 가볍고 재미있는 성향 리포트를 공유하고 싶은 사람 아우라는 사람을 점수로 평가하거나 순위를 매기는 서비스가 아닙니다. 외모 평가, 호감도 점수, 자유 악성 코멘트 없이 선택형 응답을 기반으로 성향과 분위기를 분석합니다. 친구들이 보는 나의 아우라를 확인해보세요.

Screenshots

Night Letter4 screens
아우라 Aura4 screens

Verdict

The call

The clearest difference is in-app purchases: 아우라 Aura at none against Night Letter's 6. 아우라 Aura also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Night Letter's advantage is update cadence (every 3 days vs fortnightly). On price 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. Night Letter sells 6 in-app purchases, starting at $5.99 per month. 아우라 Aura asks for nothing beyond the download.

UpkeepUpdate frequency

Night Letter ships an update every 3 days, 아우라 Aura fortnightly. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 3 level
Night Letter versus 아우라 Aura: the parameters behind the verdict, then further details
ParameterNight Letter아우라 Aura
PriceFreeFree
Update frequencyEvery 3 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size94 MB63 MB
Age rating4+4+
DeveloperIsu KimWon Gun Lee

In-app purchases

6 purchases

Night Letter

Subscriptions2
  • Premium$5.991 Month
  • Signature3 Days trial$14.991 Month
One-time4
  • 2 Stamps$1.00
  • 5 Stamps$2.99
  • 12 Stamps$4.99
Show 1 more
  • 40 Stamps$39.99
None

아우라 Aura

No in-app purchases

Questions

Is Night Letter free?
Night Letter is free to download, with in-app purchases available.
Is 아우라 Aura free?
아우라 Aura is free to download, with no in-app purchases.
Do Night Letter or 아우라 Aura have ads?
Night Letter shows ads; 아우라 Aura does not.
Which is updated more often, Night Letter or 아우라 Aura?
Night Letter ships an update every 3 days, and 아우라 Aura fortnightly. Most recently, Night Letter was updated on October 31, 2026 and 아우라 Aura on October 28, 2026.

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