For people who rent out their own stuff — not rental companies

Win the rental
deposit dispute.

Rent out tools, a trailer, party gear, camera kit — anything you list on Facebook Marketplace? Snap timestamped, renter-signed before & after photos at every handoff — even with no signal — so “it was already like that” stops costing you. Proof that holds up.

First item free, forever · No card required · Works on any phone

Condition packet ✓ Synced
The same utility trailer at checkout (top, undamaged) and at check-in (bottom, with a dented side panel) Before After · damaged
CapturedJul 4, 9:02 AM
Location41.878, −87.629
Deposit$300 · held
Renter signature
Captured offline · waiting to sync

Sound familiar?

“My pressure washer came back with a cracked pump housing. The renter swore it was already like that. I had no before photos — so I ate the repair and lost the argument.”

One undocumented handoff can wipe out a month of side income. Airtightproof makes the proof automatic, so you're never the one holding the bill.

Three taps at handoff. Done.

No training, no manual. If you can take a photo, you can defend a deposit.

01

Snap the handoff

At pickup, walk the item and capture photos — guided by your own checklist (front, back, serial number, accessories…). Add notes and the renter's signature on your phone.

02

It syncs itself

Everything is saved on your phone instantly, even with no signal. The moment you're back in range, it uploads in the background.

03

Get the evidence packet

At return, capture the after photos and the renter's sign-off — then Airtightproof builds a before/after PDF with both timestamps, location, signatures, and a verification hash, ready to settle any dispute.

Everything a one-person operation needs

And nothing it doesn't. No catalog, no storefront, no invoicing bloat.

Deposit defense

A timestamped, geotagged, renter-signed before/after record. “It was already like that” stops being your problem.

Works with no signal

Built offline-first for handoffs anywhere — a driveway, garage, or parking lot with one bar. Capture in airplane mode; it syncs when you reconnect.

One calendar, every channel

See Facebook Marketplace, Neighbor, and local bookings in one place. Loud double-booking warnings before you confirm.

Guided photo checklists

Set the shots once per item. Every handoff captures the same angles, paired before/after in the packet.

Deposit & income tracking

See deposits you're currently holding at a glance, and export a clean CSV come tax season.

Shareable proof

Send the renter a link to the signed packet. Branded with your name and logo — looks like you mean it.

Built for you, not the rental yard.

The big tools assume you're a business — with a storefront, a catalog, staff, and a monthly bill to match. You just have a couple of things you rent out on the weekends. Airtightproof is shaped for exactly that.

Start protecting your deposits

Airtightproof

  • A few things you rent out part-time
  • Capture that works anywhere, even with no signal
  • Bookings across Facebook Marketplace, Neighbor & local
  • Cheap, instant, nothing to learn

Everyone else

  • Assumes you run a rental business
  • Storefront, catalog & invoicing you don't need
  • Per-seat pricing built for teams
  • Sales calls just to see a price

One back office, every channel

List wherever you want. Track it all in one place.

Most operators rent across several platforms plus local deals. Airtightproof sits above all of them — one calendar, one record, one set of proof — no matter where the booking came from.

Facebook MarketplaceNeighborHyggloTuroOutdoorsyRVshareBoatsetterGetMyBoatShareGridCraigslistNextdoorDirect / local + anywhere else

Marketplace guarantees only cover their own bookings — and exclude everyday wear-and-tear disputes. Your Airtightproof record follows every rental, on every channel.

Honest, simple pricing

Start free. We never take a cut of your rentals or deposits.

Starter

Free

Your first item, forever

  • Unlimited handoffs & packets
  • Offline capture
  • Unified calendar
Get started free
Most popular

Operator

$12/mo

All your items, no limits

  • Everything in Starter
  • Unlimited assets
  • Branded, shareable packets
  • Income CSV export
Start free, upgrade anytime

No transaction fees. No deposit processing. Airtightproof never touches your money.

Questions, answered

Do I need to be a registered business?

No. Airtightproof is built for people who rent out their own stuff on the side — some tools, a trailer, camera gear, party equipment, a kayak — not for rental companies. No business license, no team, no storefront required.

I already rent on Hygglo (Fat Llama), Turo or Outdoorsy — why do I need this?

Those platforms only protect rentals booked through them, and their guarantees exclude the most common dispute — everyday wear and tear like scratches, dents and cosmetic marks (some exclude whole categories, like boats). Airtightproof is your own record across every channel, including Facebook Marketplace, Craigslist and local deals that have no protection at all. It even strengthens a platform claim, since they require before/after photos to pay out — and it's exactly the evidence a card issuer asks for if a renter disputes the deposit charge. You hold the proof on every rental — not just the ones on one app.

Does it really work without signal?

Yes. The whole checkout — photos, signature, notes — is saved on your phone the instant you capture it. When you get back into range it uploads automatically. Nothing is lost, wherever you hand it off.

Is it an app I install?

Airtightproof installs to your home screen like an app (it's a PWA) and works on any phone — nothing to download from an app store. A native app is on the way.

What makes the evidence hold up?

Each packet pairs your before and after photos with two timestamps each — when you captured it and when our server received it, an independent check on the time — plus GPS location, meter readings, the renter's signature at both pickup and return, the exact agreement they signed, and a SHA-256 verification hash that makes the file tamper-evident. It's a signed, contemporaneous before/after record — exactly the kind of proof platforms and card issuers ask for, and what you'd bring to small claims. We're a documentation tool, not a law firm or an insurer: the proof is strong, but the outcome is always between you and your renter.

What does it cost?

Your first item is free, forever. Add more for a simple flat monthly price. No transaction fees, ever — Airtightproof never touches your money.

Your next handoff could be the one that goes sideways.

Set up your first item in under a minute. The first one's free — and so is peace of mind.

Get started free