You got Conditional Approval for Global Entry. You checked the CBP portal. The nearest interview is six months out. So you started Googling, and two names kept coming up: Appt Helper and Appointment Scanner.
Both services do the same core thing — they watch the CBP enrollment calendar and text you the moment a cancellation slot appears. But there are real differences in how they handle urgency, how many locations they cover, and what you actually get for the price. If you're at a high-traffic airport like JFK or LAX, those differences can determine whether you catch a slot or miss it.
Here's the straight comparison.
What Does Each Service Actually Do?
When someone cancels a scheduled Global Entry interview, that slot shows up on the CBP portal — typically for seconds before another applicant grabs it. Refreshing the page yourself doesn't cut it. The window is too short.
Both Appt Helper and Appointment Scanner automate that monitoring. Their software checks the CBP scheduling system on a regular cadence and fires an alert the instant a slot appears. You click the link, log into the TTP portal, and book it before it's gone.
The gap between them comes down to how fast that alert reaches you, and through how many channels.
Urgency: The Most Important Variable
At a location like SFO or ORD, a cancellation can disappear in under 10 seconds. The gap between getting your alert immediately versus getting it a minute later is the gap between booking your interview and watching someone else take it.
Appt Helper Priority is built for that scenario. When a slot opens, it fires SMS, email, and browser notification simultaneously — so you're covered whether you're at your desk, away from your phone, or have your ringer off.
Appt Helper Standard is the smarter choice if you're not in a race against the clock. Maybe your location isn't perpetually slammed, or your schedule gives you flexibility. Same multi-channel alerts, same 3-location coverage, at $19.99 instead of $34.99.
Appointment Scanner is a well-established service and it's worked for a lot of people. Based on what's publicly available, their monitoring cadence is slower than Appt Helper Priority. At quieter locations, that probably doesn't change much. At the busiest enrollment centers, it can make the difference.
Side-by-Side Comparison
| Feature | Appt Helper Standard | Appt Helper Priority | Appointment Scanner | |---|---|---|---| | Alert urgency | Standard | ⚡ Priority — built for high-demand airports | Standard | | SMS alerts | ✅ Yes (US/CA) | ✅ Yes (US/CA) | ✅ Yes | | Email alerts | ✅ Yes | ✅ Yes | ✅ Yes | | Browser notifications | ✅ Yes | ✅ Yes | ❌ Not standard | | Locations monitored | Up to 3 locations | Up to 3 locations | 1 location (varies by plan) | | Alert window | Up to 60 days | Up to 60 days | Varies | | Pricing model | One-time $19.99 | One-time $34.99 | One-time payment | | Programs covered | Global Entry, NEXUS, SENTRI | Global Entry, NEXUS, SENTRI | Global Entry, NEXUS, SENTRI |
Pricing: Both Are One-Time Payments
No subscriptions, no recurring charges on either side. You pay once.
Appt Helper Standard runs $19.99 and Priority runs $34.99 — both cover up to 3 locations and monitor for up to 60 days (or until you book). Appointment Scanner is similarly priced as a one-time purchase.
Since the cost is in the same ballpark, the real differentiators are location coverage and what happens in those first critical seconds after a slot opens.
Multi-Location Monitoring
This feature is easy to underestimate until you need it. If you only watch one location and it's backed up for months, you're stuck waiting for that specific airport to have a cancellation. Watching three locations at once changes the odds significantly.
Both Appt Helper plans cover up to 3 simultaneous locations. If you're in the Bay Area, you can run SFO, OAK, and SJC at the same time. Whoever cancels first, you're there.
Appointment Scanner's location coverage varies by plan — worth checking their site for current specifics if that's a factor for you.
Which Service Should You Use?
If you need to move fast — particularly if you're monitoring JFK, LAX, SFO, ORD, or another high-traffic airport — Priority at $34.99 is the right call. It's designed specifically for those situations where a slot appears and is gone before most people even see the notification.
If you have some breathing room on timing, or your location tends to have steadier availability, Standard at $19.99 is solid coverage at a fair price.
Appointment Scanner is a proven service with a real track record. If you're already set up and getting alerts, there's no compelling reason to switch mid-hunt. But if you're choosing for the first time, Appt Helper's three simultaneous alert channels, multi-location coverage, and Priority tier for high-demand airports give it an edge for most situations.
The Bottom Line
The CBP interview backlog is real and it's not getting better on its own. Both services attack the same problem: watch the cancellations, alert you instantly, you book the slot. Both charge once.
What separates Appt Helper is the Priority tier built for busy airports, coverage across up to three locations simultaneously, and SMS + email + browser all firing at once when something opens. If speed matters to you, set up monitoring for every enrollment center within reasonable distance of where you live.
Start monitoring with Appt Helper
For more on navigating the Global Entry process, see our guides on Global Entry interview wait times, how to schedule your interview faster, and which credit cards cover the application fee.