CHALLNA vs 카드피커
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CHALLNA
This app helps you achieve precise timing for critical online events by displaying accurate server time, accounting for network latency. It offers one-touch presets for popular sites, countdown timers, and practice modes to improve your reaction speed for ticket sales, course registrations, and limited drops.
- Millisecond precision synchronization
- One-touch server presets
- Intuitive countdown timers
- Click practice mode
- Smart reminders and schedule registration
- Direct site access
- Dynamic Island support
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■ 0.01 Seconds Make All the Difference. Have you ever missed out on popular concert tickets, course registrations, or limited-edition drops by a split second? Don’t rely on your phone’s local time. Check the "Real Server Time" of the site itself. 'CHALLNA' will drastically increase your success rate. ■ Why CHALLNA? (Key Features) 1. Millisecond(ms) Precision Synchronization We do more than just fetch server time. CHALLNA calculates network latency (RTT) and average transmission deviations in real-time to correct any errors. Find the "true" 0.01 second with Korea’s highest level of precision. 2. One-Touch Server Presets Interpark, YES24, Melon Ticket, and even major university registration sites! No need to type addresses manually. Simply search to instantly register and track your desired server. 3. Intuitive Countdown & Target Setting Set your goal time and watch the countdown in real-time down to the millisecond. Stay perfectly prepared for that high-pressure moment right before the opening. 4. Click Practice for Real-World Reflexes Theory is different from practice! Use the built-in 'On-the-Dot Click Practice' to check your reaction speed and master the feeling of clicking at exactly 0.00 seconds. 5. Smart Reminders & Schedule Registration (HOT!) Register your important ticketing or course registration schedules. We’ll make sure you’re ready with custom notifications before your target time, even in your busy daily life. 6. Direct Site Access Why check the time and switch apps separately? CHALLNA provides direct outlinks to the sites, shortening your access time to the absolute minimum. 7. Dynamic Island Support Keep tracking the time via Dynamic Island even while moving to the ticketing site, ensuring you never miss the countdown. (Available on iPhone 14 Pro and later models) ■ Highly Recommended For: • Concert fans tired of losing out in "Blood-keting" (bloody ticketing). • Students desperate to secure popular university courses. • Anyone needing perfect timing for holiday train bookings or limited drops. • Perfectionists who won't settle for even a 0.01-second error. ■ Please Note: • Minor errors may occur depending on network conditions. We recommend using a stable Wi-Fi, 5G, or LTE environment. • For the best results, be sure to use the 'Click Practice' feature in advance! Download 'CHALLNA' now and experience the miracle of 0.01 seconds!
카드피커
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「결제 전, 어떤 카드가 가장 이득일까?」 어디서 결제하는지만 고르면 내 카드 중 가장 이득인 카드를 바로 알려 드려요. ■ 결제 전 확인 • 가게나 업종을 고르면 내 카드를 혜택 순서로 보여 드려요 • 할인·포인트·마일리지를 한눈에 비교해요 • 앱에 기록한 실적과 이번 달 남은 한도까지 따져서 골라요 ■ 이번 달 카드 현황 • 「이 카드로 결제했어요」 한 번이면 실적과 한도에 바로 들어가요 • 카드마다 이번 달 실적, 지난달 실적을 채웠는지, 받은 혜택을 한눈에 봐요 ■ 카드 혜택 보기 • 카드사 공식 자료로 정리한 혜택을 보여 드려요 • 공식 자료가 없는 카드는 AI가 찾아 드려요(참고용) ■ 쉽게 시작 • 카드사와 상품만 고르면 등록 끝. 카드 번호는 받지 않아요 • 로그인 없이 바로 써 볼 수 있어요 • 로그인하면 기기를 바꿔도 카드와 기록이 이어져요 ■ 커뮤니티 • 카드 혜택이 궁금하면 질문하고 다른 사용자와 AI의 답을 받아 보세요 ■ 프리미엄(구독) • 결제 전 확인 하루 20회(무료는 하루 3회) • 광고 없이 • 최근 확인을 맨 위에 고정(30일이 지나도 남아요) • 커뮤니티 닉네임 바꾸기 ※ 카드 혜택은 카드사 사정으로 바뀔 수 있어요. 결제 전에 카드사 안내도 확인해 주세요. ※ AI 답은 추정이라 실제 혜택과 다를 수 있어요. 이용약관: https://ai-itda.notion.site/33a657a5888d807bb53be3480722a81d 개인정보 처리방침: https://ai-itda.notion.site/33a657a5888d8000809edd4d991dcfaa
Screenshots
Verdict
The clearest difference is in-app purchases: CHALLNA at none against 카드피커's 3. CHALLNA also leads on ads (none vs shown). 카드피커's advantage is update cadence (every 2 days vs every 2 weeks). On price, device support and iOS requirement 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. 카드피커 sells 3 in-app purchases, starting at $1.99 per month. CHALLNA asks for nothing beyond the download.
CHALLNA ships an update every 2 weeks, 카드피커 every 2 days. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.
| Parameter | CHALLNA | 카드피커 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | RYNYUL | DONGWOO KIM |
In-app purchases
CHALLNA
No in-app purchases
카드피커
- 카드피커 프리미엄7 Days trial$1.991 Month
- 카드피커 VIP7 Days trial$19.991 Month
- 카드피커 프리미엄 초기화$0.49









