K vs Loop for Flight Crew
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K
Apply for your Korea Electronic Travel Authorization (K-ETA) easily and conveniently. This official government app is required for visa-free foreign visitors entering Korea, allowing you to submit necessary travel information before boarding.
- Apply for K-ETA
- Submit travel information
- Official government app
- Required for visa-free entry
- Convenient application process
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This mobile app is the official Republic of Korea government app and you can use it to apply for the K-ETA. K-ETA is an electronic travel authorization that visa-free foreign visitors need to obtain before entering Korea, by submitting relevant information such as their travel information. Use this app to apply for your K-ETA easily and conveniently. - K-ETA is required for nationals of 66 visa-waiver countries and 46 designated visa-free countries - You need to apply at least 24 hours before you board your flight or ship - Official Website: www.k-eta.go.kr
Loop for Flight Crew
Share your travel schedule with loved ones. This app displays flights, layovers, and show times on a calendar, offering real-time tracking and alerts for departures, arrivals, and delays. It provides clear updates on your location and estimated arrival time, all without requiring an account for recipients.
- Calendar display of flights and layovers
- Real-time flight tracking
- Departure and arrival alerts
- Delay and cancellation notifications
- Shareable links for family and friends
- Local and home time display
- Countdown widget
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Loop starts with a screenshot of your trip. Your flights, layovers and show times land on a calendar. Add reserve, standby and commutes, and that's your month. Create links to share with family and friends. It's free for them, and nobody needs an account. They get flight tracking, alerts when you push, land, run late or get cancelled, and plain answers to where you are, what you're doing, how much longer, what's next and when you're home. All in their time, with yours beside it. Every link is yours. Turn one off and it's gone from their phone. Loop tracks the flight, not you. It never asks for your location. For you: local and home time side by side, a widget that counts down to the next thing, and the trip on a map. Loop isn't an official schedule and won't update schedule changes for you. If your schedule changes, upload the new one, or Loop will continue to use the outdated schedule. Check your airline's schedule for official times. Loop for crew is offered as a monthly or yearly subscription with a 14-day free trial. Family links are always free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://loopcal.net/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Loop for Flight Crew at 100% against K's 8%. Loop for Flight Crew also leads on rating (5.0 vs 1.5) and update cadence (every 2 days vs every 17 months). K's advantage is in-app purchases (none vs 2) and ratings volume (142 vs 4). On price, ads 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. Loop for Flight Crew sells 2 in-app purchases, starting at $9.99 per month. K asks for nothing beyond the download.
Loop for Flight Crew holds the better App Store score, 5.0 against 1.5. That said, the two scores are not equally well evidenced: K has 142 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 8% of K's written reviews are positive against 100% of Loop for Flight Crew's.
K ships an update every 17 months, Loop for Flight Crew every 2 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | K | Loop for Flight Crew |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (142 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 7.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 142 — better | 4 |
| Update frequency | Every 17 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 102 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 법무부 | DENNIS MARSHALL JINKS III |
Customer experience
K
Loop for Flight Crew
Bugs and requests
K
Reported bugs
20 issues- App crashes when filling out information or clicking submit
- White blank screens that require app restart
- Payment button unresponsive or stuck
- Address field clears or resets unexpectedly
- Passport scanning reads fields incorrectly (especially Nationality)
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- Photo upload shows other users' photos instead of own
- Confirmation codes take extremely long to arrive
- Application data deleted after payment failure
- Sign up button doesn't respond to clicks
- Freezing when switching between fields or steps
- Inability to proceed past email validation
- Postal code lookup not working for foreigners
- Dropdown menus require multiple clicks to function
- Session timeout during active use
- Incompatibility with certain iOS devices
- Text input requires English keyboard to function
- Photo upload stuck in endless loop with no error messages
- Payment window doesn't appear at all
- App won't open or loads to blank screen
- Saved drafts don't load properly
Requested features
12 requests- Ability to select photos from library instead of taking new ones
- Clearer postal code format support for non-US countries
- Back button functionality during photo capture
- Save progress without losing all data on errors
- Better documentation and examples for Korean address format
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- Support for Apple Pay and other payment methods
- Offline functionality or better error recovery
- Multi-applicant support in single application
- Clearer error messages in user's language
- Print functionality that actually works
- Real native app instead of web wrapper
- Automatic photo resizing without manual intervention
Loop for Flight Crew
Not enough reviews yet to summarise bugs or requests.
In-app purchases
K
No in-app purchases
Loop for Flight Crew
- Loop Monthly14 Days trial$9.991 Month
- Loop Yearly14 Days trial$99.001 Year
