Open house sign-in apps all promise the same thing on their landing pages, and almost none of them tell you where they break. This is a buyer's guide, not a sales pitch, written by people who build one of these tools and who therefore know exactly which corners every option in the category cuts, including ours. The goal here is to help you choose well, then point you at the detailed head-to-heads if a specific matchup is what you came for. By the end you should be able to walk into your next listing knowing what an open house sign-in app actually needs to do, which trade-offs are real, and which marketing line to ignore.
What an open house sign-in app actually is
An open house sign-in app replaces the paper clipboard at the door with a screen, usually an iPad propped on the kitchen island. A visitor types their name, phone, and email, the app stores the lead, and you walk out with a list you can follow up on instead of a page of handwriting you have to decipher Monday morning. That is the whole job. Everything else a vendor bolts on, branded pages, QR codes, seller reports, follow-up email, is a feature on top of that one core task.
Here is the first thing to clear up, because the search box invents distinctions that don't exist. An open house registration app, an open house check in app, and a real estate sign in app are the same category. Vendors pick whichever label tests best in their ads. "Registration" sounds event-y, "check in" sounds like a hotel, "sign in" is what agents actually say at the door, but all three describe a tool that captures a visitor's contact details so you can call them later. If you searched any of those terms, you are in the right place. Don't let the vocabulary make you think you need three different products.
The flip side is that "same category" does not mean "same tool." Two apps that both capture a name and a phone number can behave completely differently the moment the Wi-Fi dies or a visitor asks who else sees their number. Those differences are the entire point of this page.
What to look for in open house sign-in software
After years of door duty and a lot of competitor teardowns, the features that decide whether you leave with usable leads come down to four things. Screenshots and feature checklists will not tell you these; only a real event will, so test for each one before you commit.
Offline reliability
Vacant listings have famously bad connectivity. The sellers moved out, the internet got cancelled, and the house with the concrete walls has one bar of LTE in the kitchen and none in the back bedroom where you set up the sign-in table. A lot of these tools are cloud-first: they queue sign-ins locally and upload them when a connection returns. That works until it doesn't, and you find out which at 2 PM on a busy Sunday with a line forming. An offline-first app writes every sign-in to the device with no network calls at all, so airplane mode is a supported configuration rather than a failure you discover live. This single distinction separates the tools that survive a dead-zone listing from the ones that merely claim to.
Privacy, and who actually pays
Some open house apps are free because your visitor data funds them. That is not automatically wrong, but it is something you should know before a stranger hands you their phone number trusting you with it. The question to ask any open house registration app is simple: where does this lead go, and who else can see it? If the honest answer is "a partner lender," that is a real arrangement plenty of agents accept, but you should accept it on purpose, not by accident. We get into the specifics below.
Single-screen capture speed
Every extra screen between "hi, come on in" and a captured lead loses visitors. Nobody holding a coffee and a toddler wants a multi-step wizard, and a longer form means more abandoned sign-ins, which is the lead-count problem sitting underneath every open house check in app. The fastest tools put the whole sign-in on one screen. Time how long it takes a stranger to finish; that number matters more than any feature list.
Clean export
A lead trapped inside an app is a lead you will not follow up on. The best open house sign in app makes export the front door, not a buried setting: CSV, PDF, Contacts, vCard, or a clean handoff into the CRM you already run. The test is "how do I get my leads out, today, without asking permission?" If the answer is a support ticket, keep shopping.
If you want the full ranked treatment of the field rather than this framework, we keep an honest roundup of the best open house apps that scores each option against exactly these criteria.
The main open house sign-in apps, compared fairly
Here is the short version of the live options most agents actually weigh. Pricing and ratings move, so treat anything we frame as "reportedly" as approximate, and check the source before you decide.
| App | Best for | Pricing | The honest trade-off |
|---|---|---|---|
| Curb Hero | Free digital sign-in | Free | Monetized via lender co-marketing; lead data can be shared with a paired lender |
| OpenHouse | Privacy + offline reliability | $9.99/mo or $79.99/yr, 1-month free trial | Paid, iOS/iPadOS only, deliberately not a CRM |
| Open Home Pro | Established tablet option | Listed on their site | Tablet-only sign-in; offline mode syncs later rather than working locally |
| Paper sign-in sheet | Zero-cost fallback | Free | Manual retyping, no privacy between visitors, no qualification |
Curb Hero
Curb Hero is the most popular app in this category, and that popularity is earned. It is genuinely free, it is polished, and its App Store rating sits around 4.9 stars across a large review base. If your only requirement is "digital sign-in that costs nothing," it is the obvious answer, and any guide that pretends otherwise is selling you something. The catch is how it stays free: lender co-marketing. By most accounts a default lender can be paired with your listings, and visitor information is shared with that lender when people opt into mortgage questions. For agents who already co-market with a lender, that is a fine bargain. For everyone else, it means your visitor's data has a second audience. If you want the detailed matchup, we wrote OpenHouse versus Curb Hero in full, and we keep a dedicated breakdown of what "free open house sign-in app" really costs.
Open Home Pro
Open Home Pro has been around longer than almost anything else here, and longevity counts. Plenty of agents have run hundreds of events on it without drama. Its sign-in is tablet-only by design, with lead capture, simple follow-up emails, and listing feedback questions. The trade-off is the offline model: it is sync-later rather than fully local, holding sign-ins and uploading them when a connection returns. Sync-later usually works. "Usually" is the word doing the heavy lifting at a listing with no signal. We compare the two offline approaches directly in OpenHouse versus Open Home Pro.
The paper sign-in sheet
No honest comparison skips the non-app. A printed sheet costs nothing, never runs out of battery, and works in any dead zone. For an agent doing two events a year it might be enough. But everything else is a downgrade: handwriting you misread, every contact retyped by hand, zero qualification, and no privacy, since visitor nine can read the names and numbers of visitors one through eight. That last part is exactly what makes careful buyers write "n/a" in the phone column. We laid out the full case in OpenHouse versus the paper sign-in sheet if you are deciding whether to go digital at all.
What about Spacio?
If an older roundup pointed you at Spacio, stop looking. The HomeSpotter/Lone Wolf sign-in product was removed from the App Store on January 12, 2026, and is no longer available to install. We note it only so you don't burn an afternoon chasing a dead app. Big-publisher lists like The Close's open house app roundup have historically featured it, so check the publish date on anything you read in this category, including this page.
Registration vs check-in vs sign-in: same app, different label
This deserves its own section because the naming genuinely confuses buyers. When you search for an open house registration app, an open house check in app, and a real estate sign in app, you get largely the same products with different ad copy. There is no meaningful product difference for open houses; the underlying job, capture a visitor's contact details at the door so you can follow up, is identical across all three terms. A "registration" app for an open house is not collecting payment or assigning seats; it is collecting a name and a phone number, same as a "check-in" app, same as a "sign-in" app.
The only reason to care about the wording is search. Vendors target whichever phrase their audience types, so you will find an open house app for realtors marketed three different ways. Pick on behavior, not vocabulary. The app that captures fast, works offline, protects the data, and exports cleanly is the right one whether its homepage says register, check in, or sign in.
How OpenHouse fits
This is our app, so apply a discount to everything nice we say about it. OpenHouse exists because we kept hitting the same two failures at real events: sign-in tools that stalled the moment the listing's Wi-Fi did, and "free" apps where the visitor data quietly traveled somewhere else. So we built the opposite, and we built it narrow on purpose.
OpenHouse is an iPad-first open house sign-in app that makes zero network calls. No account, no backend, no sync. Every sign-in is written to the device, qualified on the spot, represented buyer, unrepresented hot lead, neighbor, or investor, and exported on your terms as CSV, PDF, Contacts, vCard, or a share into the CRM you already use. The capture screen is a deliberate single-screen sign-in, because every extra step costs you finished leads. Because nothing waits on a network, it is true offline lead capture rather than queue-and-pray sync, so a dead-zone listing behaves exactly like a connected one. And because the leads live on the iPad until you move them, getting them out is export-first, never a support ticket.
The trade-offs are real and we will say them plainly. It is paid while the category leader is free. It is iOS and iPadOS only, with no Android. And it is deliberately not a CRM, so there are no drip campaigns and no marketing suite; it captures and qualifies at the door, then hands the leads to your real system. If a full platform is what you want, pick something else in this guide. Pricing is $9.99/month or $79.99/year with a one-month free trial, and if a subscription ever lapses the app drops to a read-only mode where your captured leads stay viewable and exportable. Your data is never held hostage.
Privacy here is architectural, not a policy you have to trust. Leads physically cannot leave the device unless you export them, there is no enrichment pulling from data brokers, and there is no lender being paid behind the scenes. That posture matters more every year as buyers grow warier about where their details end up; consumer-trust trends tracked by NAR's research and statistics keep pointing the same direction. Independent roundups like HousingWire's coverage of open house tools keep landing on the same lesson too: own your lead data and pick a tool that lets you walk out with it.
So which open house sign-in app should you pick?
Strip away the brands and it comes down to one question: what are you willing to trade for your visitor data?
- Trade nothing, accept lender co-marketing: Curb Hero. The best free open house sign in app, full stop, as long as you know how the bill gets paid.
- Trade $9.99/month for privacy and a kiosk that works in a dead zone: OpenHouse. We are biased about the app; the architecture works the same regardless.
- Trade phone flexibility for a long track record: Open Home Pro on a dedicated tablet.
- Trade your Monday morning to retyping: the paper sheet.
Whatever you choose, run it once at a low-stakes event before a busy Sunday. Sign yourself in as a fake visitor, kill the Wi-Fi, and try the export. The best open house sign in app for you is the one that survives that drill, and ten minutes of testing beats any guide on the internet, including this one. If OpenHouse looks like your lane, the first month is free to try.
Frequently asked questions
What is an open house sign-in app?
An open house sign-in app is a phone or tablet app that replaces the paper clipboard at the door. Visitors enter their name and contact details on a screen, and the app stores each lead so you can follow up later instead of retyping handwriting. Most run as a kiosk on an iPad.
Are open house sign-in apps free?
Some are. Curb Hero is genuinely free and well-reviewed, but it is monetized through lender co-marketing, which means visitor data can be shared with a paired lender. Paid apps like OpenHouse charge a small subscription instead and keep the leads private. The real question is who pays, not whether it costs nothing.
Do open house sign-in apps work without Wi-Fi?
It depends on the app. Cloud-first tools queue sign-ins and sync when a connection returns, which works until the listing has no signal at all. A truly offline-first app like OpenHouse writes every sign-in to the device with zero network calls, so a dead-zone listing behaves exactly like a connected one.
Is a registration or check-in app the same as a sign-in app?
Yes, for open houses these are the same thing. Open house registration app, open house check-in app, and open house sign-in app all describe a tool that captures visitor contact details at the door. The label changes by vendor, but the job is identical.
Which open house sign-in app is best for a solo agent?
It depends on what you trade for your visitor data. A solo agent who wants free and accepts lender co-marketing should look at Curb Hero. One who wants privacy, offline reliability, and clean export should look at OpenHouse. Run whichever you pick at one low-stakes event before a busy Sunday.