CHALLNA vs 나노타임
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!
나노타임
This app displays the precise server time of ticketing and course registration websites in milliseconds. It directly queries the target site's server, accounting for network delays and server clock discrepancies. Get accurate countdowns and alerts for important events without relying on your phone's standard clock.
- Millisecond-accurate server time display
- Direct server queries, no central server
- Accounts for network delay and server clock drift
- Supports over 1,200 pre-registered sites
- Custom site input and favorites
- Audio and vibration alerts for target times
- Picture-in-Picture (PiP) mode for concurrent browsing
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티켓팅과 수강신청은 내 폰 시계로 하는 게 아닙니다. 그 사이트의 서버 시계로 합니다. 나노타임은 예매처·수강신청 사이트의 서버가 지금 몇 시라고 말하는지 밀리초 단위로 읽어 띄웁니다. 다른 타이머와 달리 서버를 거치지 않아 정확합니다. ■ 오차를 숨기지 않습니다 「완전 정확」이라고 말하지 않습니다. 남은 오차를 ±00ms 로 그대로 띄우고, 값이 오래됐거나 그 서버의 시계가 흔들리면 시계가 흐려지면서 오차 폭이 넓어집니다. ■ 1,375곳 + 직접 입력 티켓팅·스포츠·수강신청·쇼핑·예약·해외까지, 실제로 찔러 보고 시각을 읽을 수 있는 곳만 담았습니다. 목록에 없으면 주소를 직접 치면 되고, 별을 눌러 즐겨찾기에 남길 수 있습니다. ■ 정각을 소리와 진동으로 알려줍니다 10초 전부터 1초마다 신호가 오고, 3초 전부터는 리듬이 바뀝니다. 화면을 보고 있지 않아도 됩니다. ■ 브라우저를 쓰는 동안에도 시계가 돕니다 예매 페이지를 띄운 채 작은 창(PiP)으로 서버 시계를 봅니다. 앱을 나가도 시계는 멈추지 않습니다. ■ 리허설 목표를 10초 뒤로 세우고 진짜 서버 시계로 한 판 돌려봅니다. 누른 순간이 아니라 그 클릭이 서버에 닿는 시각으로 채점합니다. ■ 자동 클릭·매크로는 없습니다 시각만 보여줍니다. 로그인도, 회원가입도, 예매 화면도 앱 안에 없습니다.
Screenshots
Verdict
The clearest difference is review sentiment: CHALLNA at 100% against 나노타임's 50%. CHALLNA also leads on ads (none vs shown) and monetization model (free vs ad-supported). 나노타임's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
CHALLNA ships an update every 2 weeks, 나노타임 every 2 days. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.
| Parameter | CHALLNA | 나노타임 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 38 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | RYNYUL | Nemo factory |
Customer experience
CHALLNA
나노타임
In-app purchases
CHALLNA
No in-app purchases
나노타임
No in-app purchases






