KT 멤버십 vs Washswat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KT 멤버십
Access integrated membership benefits from KT, including mobile, internet, and TV services. This app is available to all KT customers except corporate and prepaid SIM users.
- Integrated KT membership benefits
- Access mobile, internet, and TV services
- Notifications for services and benefits
- Available to KT customers
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▶ App 이용 중 오류 사항은 ktmembership@kt.com 으로 증상과 함께 메일 주시면, 신속히 확인 후 답변 드리겠습니다. (보다 정확한 내용 확인을 위해 단말명, OS 버전, 현재 앱버전을 같이 기재해주세요!) [이용안내] KT멤버십은 KT가 제공하는 멤버십 혜택을 통합적으로 이용할 수 있는 모바일 어플리케이션입니다. KT 모바일, 인터넷, TV, 집전화, 인터넷전화 이용고객 누구나 가입 가능합니다. (단, 법인/선불유심 고객 제외) [KT 멤버십의 접근 권한 항목 및 필요 사유] 1. 선택적 접근 권한 #알림 권한 : KT멤버십 앱 서비스 및 혜택 알림 ---- 개발자 연락처 : (KT 고객센터) 100 ---- 개발자 연락처 : (주)케이티 분당구 불정로 90 (정자동) 분당구, 성남시, 경기도 13606 South Korea 102-81-42945 2002-경기성남-0048 경기도 성남시
Washswat
This app provides a top-rated dry-cleaning and laundry service. It offers convenient solutions for garment care, making it the leading choice in Korea.
- Dry-cleaning services
- Laundry services
- Garment care solutions
- Convenient pickup and delivery
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● Contactless pickup and delivery, ready in a second at your door Just place an order in the app and leave your laundry at your door. You can follow every step from pickup to delivery in real time, so you can hand it over without worrying about loss or damage. ● Experts inspect your laundry in person and share a care report Every item is checked in person by a skilled expert. We look for stains, lint, and damaged spots, mark them with photos, and recommend the right washing method for each piece in a report. You can see exactly how it was washed and how it turned out, with nothing hidden. ● No surprise charges, just the care you choose We suggest only the care your laundry really needs, and you decide whether to go ahead. Whether protecting the fabric or removing a stain matters more, the choice of washing method is yours. ● Check an AI estimate before you hand it over Take a photo of your laundry with the camera to see the expected cost in advance. There's no guessing about the price, so you can review a clear estimate before you send anything. ● Premium restoration care backed by professional know-how Bring your favorite clothes back to life with premium care that goes through a professional process. If you have a treasured piece you're worried about, you can leave it to Washswat with confidence. ● App access permissions These permissions help you use Washswat more comfortably. We're providing this notice in accordance with Article 22-2 (Consent to Access Authority) of the Act on Promotion of Information and Communications Network Utilization and Information Protection, etc. [Optional permissions] Notifications: to let you know about pickup, delivery, and washing progress Camera: to photograph your laundry with the AI lens and check its type and condition Photos and media: to upload laundry photos and attach or review your requests You can still use the rest of the service even if you don't allow the optional permissions. Only those specific features will be limited. You can change permissions anytime in Settings > Apps > Washswat > Permissions. ● We're always here to help 1:1 chat support: every day, 7AM to 8PM Phone support: weekdays, 9AM to 6PM (lunch 12PM to 1PM) Customer center: 1566-5892 KakaoTalk channel: @세탁특공대 Closed on Lunar New Year's Day and Chuseok
Screenshots
Verdict
The clearest difference is review sentiment: Washswat at 94% against KT 멤버십's 38%. Washswat also leads on rating (4.7 vs 4.0) and update cadence (every 4 weeks vs every 2 months). On price, ratings volume, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Washswat holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 138 and 373 respectively. Written reviews point the same way: 38% of KT 멤버십's written reviews are positive against 94% of Washswat's.
KT 멤버십 ships an update every 2 months, Washswat every 4 weeks. Both last shipped on November 6, 2026.
| Parameter | KT 멤버십 | Washswat |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (138 ratings) | 4.7 (373 ratings) — better |
| Positive reviews | 38.0% of reviews | 93.7% of reviews — better |
| Number of ratings | 138 | 373 — better |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 70 MB | 114 MB |
| Age rating | 4+ | 4+ |
| Developer | KT Corporation | (주)워시스왓 |
Customer experience
KT 멤버십
Washswat
User reviews
KT 멤버십
From 138 App Store ratingsWhat we love
- 👍 Convenient for membership benefits
- 👍 Easy to find necessary information
- 👍 Good for checking coupons
- 👍 Well-organized benefits information
- 👍 Barcode easily accessible
Room to improve
- 🐌 Extremely slow app performance
- 🐌 Frequent app crashes
- 🐌 Login issues and errors
- 🐌 Unresponsive interface
- 🐌 App not loading
Washswat
From 373 App Store ratingsWhat we love
- 👍 Convenient and easy to use
- 🚀 Fast and efficient service
- 🔍 Detailed tracking and updates
- 🧹 High-quality cleaning results
- 💳 Reasonable pricing
Room to improve
- 🐛 Occasional issues with damaged or mishandled items
- 🕰️ Longer turnaround time for some specialized services
- 💰 Perceived high prices for premium services
Bugs and requests
KT 멤버십
Reported bugs
51 issues- App crashes on launch
- App does not load
- Login button unresponsive
- App freezes on splash screen
- App crashes immediately upon opening
Show 46 moreShow fewer
- App not loading or unresponsive after update
- App closes immediately upon execution
- Network connection errors
- Login persists after logout
- Inconsistent login status
- App not working for foreigner registration numbers
- Errors during movie booking
- Payment system issues
- Pop-up issues blocking functionality
- App not loading
- Unresponsive interface
- Screen display issues
- Errors during coupon redemption
- App freezes frequently
- Poor optimization
- Unreliable for essential tasks
- Repeatedly asking for login information
- Unnecessary personal information input
- UI elements overlapping
- Outdated app version requirements
- Unwanted bright screen on launch
- Brightness adjustment issues
- App not working for foreigner registration numbers
- Login issues and errors
- App not loading or unresponsive after update
- App closes immediately upon execution
- Network connection errors
- Login persists after logout
- Inconsistent login status
- App not working for foreigner registration numbers
- Errors during movie booking
- Payment system issues
- Pop-up issues blocking functionality
- App not loading
- Unresponsive interface
- Screen display issues
- Errors during coupon redemption
- App freezes frequently
- Poor optimization
- Unreliable for essential tasks
- Repeatedly asking for login information
- Unnecessary personal information input
- UI elements overlapping
- Outdated app version requirements
- Unwanted bright screen on launch
- Brightness adjustment issues
Requested features
25 requests- Improve LTE quality
- Integrate with Apple Wallet/Google Wallet
- Add widget functionality
- Provide easier data addition
- Enable movie ticket reservations within the app
Show 20 moreShow fewer
- Simplify account information updates
- Improve app performance and speed
- Fix login issues
- Ensure consistent login status
- Optimize app for smoother operation
- Allow easier access to membership benefits
- Improve event participation experience
- Address pop-up issues
- Enhance app stability
- Provide clearer explanations for new technologies like 5G
- Allow easier application of coupons
- Improve the payment system
- Address version management issues
- Fix app crashes on launch
- Make app usable with foreigner registration numbers
- Allow easier application of coupons
- Improve the payment system
- Address version management issues
- Fix app crashes on launch
- Make app usable with foreigner registration numbers
Washswat
Reported bugs
2 issues- Login and authentication problems for some users
- Inconsistent app performance on older devices
Requested features
3 requests- Expanded pickup and delivery time options
- More customization for specialized cleaning requests
- Improved communication on status updates
In-app purchases
KT 멤버십
No in-app purchases
Washswat
No in-app purchases








