Let'Swift vs mellight
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Let'Swift
This app provides official conference information, including schedules and reminders. It's an open-source project built with SwiftUI, allowing users to view and contribute to the source code. Requires iOS 17, WatchOS 11.6 or later.
- Conference schedule access
- Add schedule to calendar
- Event reminders
- Open-source code access
- Feedback and issue submission
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Let'Swift Conference 공식 앱입니다. 새로운 레츠스위프트를 만나보세요. 티켓 판매, 스폰서 등 행사에 관한 자세한 내용은 공식 홈페이지를 확인해주세요. (https://letswift.kr) ***** 주요기능 ***** - 컨퍼런스 일정을 확인하고 캘린더에 추가하세요. 잊지 않게 알림을 보내드려요. ***** 주의 사항 ***** - 이 앱은 iOS 17, WatchOS 11.6 이상이 필요합니다. - 본 행사는 개발자 커뮤니티에 자발적으로 참여해서 함께 만들어 가는 행사입니다. 서로를 배려하고 최소한의 예의를 지키는 멋진 모습을 보여주세요. ***** 피드백 및 참여 ***** Let'Swift 앱은 오픈소스입니다. SwiftUI로 만든 유니버설 앱의 소스코드를 확인하고 피드백을 남갈 수 있습니다. 공식 홈페이지: https://letswift.kr/ 앱 소스코드: https://github.com/letswiftconf/LetSwift 피드백 및 이슈 등록: https://github.com/letswiftconf/LetSwift/issues
mellight
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Transform the beginning and end of your day with Mellight. Restore your healthy rhythm with light. Experience the Mellight app today. 1. Light Environment Diagnosis Even if you can't see them, lights that disrupt your rhythm are hidden everywhere. We analyze your environment to show you exactly how these lights are distributed in your space. 1-1. Automatic Light Purifying Care Just like an air purifier cleans the air, Mellight reads the "light purity" of your room and provides optimized, purified light in real-time. 2. One-Touch Mode for Every Situation Instantly apply lighting optimized for immersion in whatever you're doing—whether it's reading, relaxing, or focusing. 3. Custom Fine-Tuning Delicately adjust the brightness and color temperature to find the most comfortable setting for your eyes, exactly when you need it. 4. My Light Favorites No need to adjust the settings every time. Save your frequently used lighting modes and access them instantly. 5. Natural Light Alarm (Wake-up/Sleep) Fall asleep naturally and wake up feeling completely refreshed with our stress-free light alarm. [Notice] This app is a dedicated remote control designed to work exclusively with the 'Cirkadian Mellight Smart Lamp' hardware. A physical lamp is required to use the lighting control and scheduling features. There is no membership registration required. We do not collect or store any of your personal information or setting data on external servers, ensuring your complete privacy and safety. This application is a utility tool intended to support a comfortable lifestyle and smart device control. It is not a medical or healthcare app, and it is not intended for medical diagnosis, treatment, or the cure of sleep disorders. [Customer Support] If you experience any issues while using the app or have questions about the Mellight lamp, please feel free to contact us at any time. Email: cirkadian@cirkadian.io
Screenshots
Verdict
The clearest difference is update cadence: mellight at every 2 weeks against Let'Swift's every 3 months. mellight also leads on iOS requirement (15.0 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Let'Swift ships an update every 3 months, mellight every 2 weeks. The most recent releases landed on September 23, 2026 and October 10, 2026 respectively.
| Parameter | Let'Swift | mellight |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Codesquad Inc. | CirKadian |
In-app purchases
Let'Swift
No in-app purchases
mellight
No in-app purchases









