Comparison

Let'Swift vs Good Night Lock(screen time)

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

Head to head
About

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.

Highlights
  • Conference schedule access
  • Add schedule to calendar
  • Event reminders
  • Open-source code access
  • Feedback and issue submission
Features
Read full description

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

About

Good Night Lock(screen time)

This app helps users establish healthier sleep routines by locking distracting applications during designated sleep hours. It allows for easy setup of bedtime and wake-up times, ensuring only essential apps remain accessible to promote better sleep quality.

Highlights
  • Set bedtime and wake-up times
  • Lock non-essential apps
  • Utilizes Screen Time permissions
  • Reduce screen time
  • Improve sleep quality
  • Easy setup
Features
Read full description

Good Night Lock helps you improve sleep habits. - Easy setup: Simply set your bedtime and wake-up time. - Lock apps: it locks all apps except essential ones like Phone and Clock during your sleep hours using Screen Time permissions. - Effective usage control: Reduce screen time and improve your sleep quality. Prepare for a better tomorrow with Good Night Lock! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy : https://www.goodnightlock.com/privacy-policy/good-night-lock

Screenshots

Let'Swift4 screens
Good Night Lock(screen time)4 screens

Verdict

The call

The clearest difference is in-app purchases: Let'Swift at none against Good Night Lock(screen time)'s 2. Good Night Lock(screen time)'s advantage is update cadence (monthly vs every 3 months). On price, rating, review sentiment and ratings volume 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. Good Night Lock(screen time) sells 2 in-app purchases, starting at $4.99 per month. Let'Swift asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Let'Swift against 5.0 for Good Night Lock(screen time). Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Let'Swift ships an update every 3 months, Good Night Lock(screen time) monthly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
Let'Swift versus Good Night Lock(screen time): the parameters behind the verdict, then further details
ParameterLet'SwiftGood Night Lock(screen time)
PriceFreeFree
Rating5.0 (5 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings5 — better3
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size43 MB10 MB
Age rating4+4+
DeveloperCodesquad Inc.Byunghoon Kang

Customer experience

Let'Swift

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Good Night Lock(screen time)

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Let'Swift

No in-app purchases

2 purchases

Good Night Lock(screen time)

Subscriptions2
  • Monthly7 Days trial$4.991 Month
  • Yearly7 Days trial$35.991 Year

Questions

Is Let'Swift free?
Let'Swift is free to download, with no in-app purchases.
Is Good Night Lock(screen time) free?
Good Night Lock(screen time) is free to download, with in-app purchases available.
Which has better reviews, Let'Swift or Good Night Lock(screen time)?
Let'Swift and Good Night Lock(screen time) are both rated 5.0 out of 5 on the App Store, from 5 and 3 ratings respectively.
Do Let'Swift or Good Night Lock(screen time) have ads?
Neither Let'Swift nor Good Night Lock(screen time) shows ads.
Which is updated more often, Let'Swift or Good Night Lock(screen time)?
Let'Swift ships an update every 3 months, and Good Night Lock(screen time) monthly. Most recently, Let'Swift was updated on November 6, 2026 and Good Night Lock(screen time) on November 4, 2026.

Other comparisons