Keymio · Terms of Service

Effective date: 2026-05-11 Last updated: 2026-05-11 Version: v1.0 (initial public release)

1. Who we are

These Terms of Service ("Terms") form a binding agreement between you ("you", "your", "Customer") and Aspen Developments LLC, an Arizona limited liability company (EIN 39-3943683), doing business as "Keymio", with registered agent Northwest Registered Agent LLC at 4539 N 22nd St Ste N, Phoenix, Maricopa County, AZ 85016, USA ("Keymio", "we", "us", "our") governing your access to and use of the Keymio software service available at keym.io (the "Service").

By creating an account, ticking the "I agree to the Terms of Service" box at signup, or by paying for any subscription, you confirm that you have read, understood, and agree to be bound by these Terms and the linked Privacy Policy and Refund Policy.

If you do not agree to these Terms, do not use the Service.

2. What the Service is — and is NOT

Keymio is a software-as-a-service property-management tool aimed at US landlords, with particular focus on landlords participating in the US Housing Choice Voucher Program ("Section 8"). The Service provides:

A dashboard for tracking properties, tenants, leases, and maintenance.
Access to publicly available US data (HUD Fair Market Rents, FBI Crime Data Explorer statistics, US Census data) presented in our user interface.
Access to third-party real-estate listing data via licensed integrations (RentCast and others, "Listing Providers").
Tools for analysing property cashflow, comparing markets, and managing tenant communications.

What Keymio is NOT. The Service is a software tool. Keymio is NOT:

a real-estate brokerage, real-estate agent, or licensed REALTOR®;
a Public Housing Authority ("PHA") or any branch of the US Department of Housing and Urban Development ("HUD");
a financial advisor, investment advisor, accountant, mortgage broker, or insurance broker;
a property manager itself — we provide tools that property managers and landlords use, but Keymio does not own, manage, lease, or take any role in the tenancy of any property listed in or analysed through the Service;
a lender of any kind;
a tenant-screening or background-check service.

Decisions you make using information presented through the Service — whether to acquire a property, set a rent, accept a tenant, file taxes, or anything else — are your decisions and your responsibility.

3. Eligibility

To create an account you must:

be at least 18 years of age;
be acting on your own behalf, or have authority to bind the entity you are signing up on behalf of;
not be barred from receiving software services under the laws of the United Kingdom, the United States, or any other jurisdiction you reside in.

Keymio v1 is intended for users physically located in the United States. Users elsewhere may use the Service at their own risk; some features (notably HUD FMR data and US listings) will not be useful outside the US.

One account per person. You may not share your login credentials with anyone who is not an authorised collaborator on your account (see Section 6). Each collaborator must be a real human being and must accept these Terms.

4. Your account

You are responsible for:

the accuracy of the information you provide at signup;
maintaining the confidentiality of your password and login session;
all activity that occurs under your account, including activity by collaborators you have invited.

If you suspect unauthorised access to your account, you must notify us at support@keym.io as soon as reasonably possible. We will not be liable for losses arising before you notify us.

We may refuse to register, suspend, or terminate any account at our reasonable discretion, including for breach of these Terms or for non-payment.

5. Subscriptions, billing, and price changes

5.1 Plans

The Service is offered on a tiered subscription basis: a free tier and paid tiers ("Plans"). Plan names, prices, and included features are published at keym.io/pricing and incorporated into these Terms by reference.

5.2 Billing

Paid Plans are billed monthly in advance via Stripe Payments Company ("Stripe"). All prices are quoted in US dollars unless stated otherwise.
Your subscription renews automatically at the start of each billing cycle until you cancel.
You authorise us (via Stripe) to charge the payment method on file for all amounts due, including any applicable taxes.
If a payment fails, we will retry the charge and may suspend your account if the payment is not collected within 14 days.

5.3 Price changes

We may change Plan prices on at least 30 days' written notice to your account email. Price changes do not take effect until the start of the billing cycle after the notice period expires. You may cancel before the new price takes effect.

5.4 Taxes

Prices exclude any sales, value-added, or similar taxes that may apply. Where required by law, applicable taxes will be added at checkout and remitted by us (directly or via Stripe Tax) to the relevant authority.

5.5 Cancellation and refunds

You can cancel your subscription at any time from Settings → Billing. Cancellation takes effect at the end of your current billing cycle; you will retain access to paid features until then. Refunds are governed by our Refund Policy, which is part of these Terms.

6. Collaborators (Portfolio and Enterprise Plans)

If you are on a Plan that supports collaborators (Portfolio, Enterprise), you may invite other people to access your account in defined roles ("Collaborators"). You are responsible for:

choosing who to invite and what role to grant them;
ensuring each Collaborator agrees to these Terms;
all actions taken by your Collaborators in your account.

We may suspend Collaborator access if a Collaborator breaches these Terms.

7. Acceptable use

You agree not to use the Service to:

violate any applicable law or regulation, including the US Fair Housing Act, equivalent state laws, or any other anti-discrimination laws;
discriminate against any tenant, prospective tenant, or anyone else on the basis of race, colour, national origin, religion, sex, familial status, disability, source of income, or any other class protected by law in the user's jurisdiction;
harass, threaten, or otherwise harm any tenant, contractor, or other third party;
scrape, mass-download, or systematically extract data from the Service beyond the API rate limits documented in your Plan;
share login credentials with anyone who is not a permitted Collaborator;
reverse-engineer, decompile, or attempt to derive the source code of the Service except as permitted by mandatory law;
introduce malware, viruses, or other harmful code into the Service;
use the Service for any property that is not lawfully held for residential or mixed-use rental purposes in the United States;
use the Service to facilitate any prohibited activity under US, UK, or any other applicable law.

Violation of this section may result in immediate suspension or termination of your account without refund.

8. Section 8, HUD, and PHA disclaimers

HUD data. The Service displays US Fair Market Rents and other data published by HUD via the HUD User APIs. This data is republished by Keymio without warranty as to accuracy, completeness, or timeliness beyond what HUD itself provides. HUD revises this data annually; we endeavour to update our cache promptly but do not guarantee real-time parity.

PHA payment standards. Local Public Housing Authorities ("PHAs") may set payment standards above or below the HUD FMR, typically in a 90–110% range, and may adjust these standards independently. The Service displays the HUD FMR as a baseline and, where available, the local PHA's published payment standard. The actual amount the local PHA will pay on any given tenancy is a decision of that PHA and not Keymio. You must verify any payment standard with the relevant PHA before relying on it in a financial decision.

Voucher density and demand. Estimates of voucher density and tenant demand are statistical approximations and do not guarantee that any particular vacancy can or will be filled with a voucher tenant.

Tenant compliance and lease termination. Section 8 compliance is governed by the lease, the HUD model lease addendum, and the local PHA's rules. Keymio's reminders, alerts, and tracking features are tools to help you operate within those rules; they do not replace the rules themselves and do not constitute legal advice on whether you may terminate any tenancy or recover any sum.

9. Third-party listing data (RentCast and others)

Property listings shown in the Discovery section of the Service are sourced from Listing Providers under our commercial agreements with them. Listings are provided "as is".

Keymio does not list, broker, sell, or transact any property.
Keymio does not verify or warrant that any listing is current, accurate, available, or lawfully advertised.
Pricing, days-on-market, beds/baths, square footage, and any other field shown for a listing reflect what the Listing Provider has supplied to us. Keymio is not responsible for errors in that data.
Any decision to enquire about, offer on, or acquire a listed property is between you and the seller or seller's agent.
Cashflow estimates and cap-rate calculations shown next to listings are computed from user-editable inputs and standard market assumptions and are not financial advice or a guarantee of future returns.

10. Cashflow estimates and other projections

The Service includes tools that produce projections — cashflow estimates, cap-rate calculations, HAP payment models, rent-increase modelling, and similar.

These projections are based on inputs you supply and assumptions selected by you or set as defaults. They are illustrative tools, not financial advice. Actual financial outcomes depend on a wide range of factors outside the Service's knowledge, including but not limited to your financing terms, vacancy rates, operating costs, capital expenditure, local tax rates, and tenant payment behaviour.

Keymio makes no representation or warranty that any projection will be achieved. You must seek independent professional advice from a qualified accountant, financial adviser, mortgage broker, or attorney before relying on any projection in a real-world decision.

11. Your data and our data

11.1 Customer Data

"Customer Data" means information you upload, enter, or submit to the Service, including property records, tenant contact details, financial information, maintenance requests, and uploaded files.

You own your Customer Data. Keymio claims no ownership of it.
You grant us a licence to host, store, copy, transmit, process, display, and otherwise use Customer Data solely for the purpose of providing and improving the Service to you, complying with our legal obligations, and exercising our rights under these Terms.
You warrant that you have all rights necessary to provide Customer Data to Keymio, including (where the Customer Data relates to a tenant, contractor, or other third party) any consents required under applicable data-protection law.

11.2 Service Data

"Service Data" means anything else generated through your use of the Service — including aggregated and anonymised usage data, analytics, model improvements, and operational logs. Service Data is owned by Keymio and may be used by us to operate, improve, and market the Service. We will not publish Service Data in a form that identifies any individual customer.

11.3 Export and deletion

You can export your Customer Data at any time from Settings → Danger Zone → Export. On termination of your account, your Customer Data will be retained for 30 days (during which you may request export or restoration) and then permanently deleted, subject to any retention obligations imposed by law.

11.4 Privacy

Our handling of personal data is governed by the Privacy Policy, which forms part of these Terms.

12. Intellectual property

Keymio retains all right, title, and interest in and to the Service, including the software, design, brand, trade marks, logos, and documentation. These Terms do not grant you any right in the Service other than a limited, non-exclusive, non-transferable, revocable licence to access and use the Service in accordance with these Terms for the duration of your subscription.

You may not copy, modify, distribute, sell, or lease any part of the Service, nor may you create derivative works of the Service, except as expressly permitted by these Terms.

13. Feedback

If you send us feedback, suggestions, ideas, or improvement requests ("Feedback"), you grant us a perpetual, worldwide, royalty-free, sublicensable licence to use that Feedback for any purpose. You waive any claim that we owe you compensation for Feedback we incorporate.

14. Suspension and termination

14.1 By you

You may terminate by cancelling your subscription from Settings → Billing. Cancellation does not entitle you to a refund except as set out in the Refund Policy.

14.2 By us — for cause

We may suspend or terminate your access immediately and without prior notice if:

you breach a material term of these Terms;
you fail to pay any amount due;
we reasonably believe your use of the Service exposes us, other users, or third parties to legal, security, or operational risk;
you have not used the account in 24 months and have not responded to reminder emails (free-tier dormancy).

14.3 By us — for convenience

We may terminate any free-tier account at any time on 30 days' notice for any reason. Paid accounts may be terminated for convenience at the end of the then-current billing cycle on 30 days' notice; in that case we will refund any prepaid fees for periods after the termination date.

14.4 Effect of termination

On termination:

your subscription, access, and any outstanding entitlements end;
Section 11.3 (Customer Data export and deletion) applies;
the following sections survive termination: 7 (Acceptable Use, to the extent of accrued obligations), 11.2 (Service Data), 12 (IP), 13 (Feedback), 15 (Disclaimers), 16 (Liability), 17 (Indemnity), 19 (Governing law).

15. Disclaimers

To the maximum extent permitted by law:

the Service is provided on an "as is" and "as available" basis;
we make no warranty that the Service will be uninterrupted, secure, error-free, or that defects will be corrected;
we make no warranty as to the accuracy, completeness, currency, or fitness for any purpose of any data, projection, or output displayed in the Service, including without limitation HUD data, FBI crime data, Listing Provider data, and computed cashflow estimates;
we disclaim all implied warranties, including merchantability, fitness for a particular purpose, and non-infringement.

Nothing in these Terms excludes or limits any liability that cannot lawfully be excluded or limited under applicable US federal or state law, including liability for death or personal injury caused by negligence and liability for fraud.

16. Limitation of liability

To the maximum extent permitted by law:

neither party will be liable for any indirect, consequential, special, incidental, or punitive damages, including lost profits, lost business, lost data, or lost opportunity, arising out of or relating to the Service or these Terms, even if advised of the possibility of such damages;
our total aggregate liability arising out of or relating to the Service or these Terms will not exceed the greater of (a) the fees you paid us in the 12 months immediately preceding the event giving rise to the claim or (b) USD $100.

This Section does not limit liability that cannot be limited under applicable law (see end of Section 15).

17. Indemnity

You agree to defend, indemnify, and hold harmless Keymio and its officers, directors, employees, and agents from and against any third-party claim, damage, loss, cost, or expense (including reasonable legal fees) arising out of:

your breach of these Terms;
your violation of any applicable law (including the Fair Housing Act and equivalent state laws);
the Customer Data you submit to the Service;
any tenancy, transaction, or decision you make in connection with your use of the Service.

18. Changes to these Terms

We may update these Terms from time to time. Material changes will be notified to your account email at least 30 days before they take effect. Your continued use of the Service after the change takes effect constitutes acceptance of the updated Terms. If you do not agree to a change you may terminate under Section 14.1; we will refund the prepaid balance for any period after the change took effect, pro-rated.

We will keep prior versions available at keym.io/terms/archive.

19. Governing law and disputes

19.1 Governing law

These Terms are governed by the laws of the State of Arizona, United States, without regard to its conflict-of-laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.

19.2 Informal resolution first

Before filing any formal claim, you agree to contact us at support@keym.io with a description of the dispute and to allow us at least 30 days to attempt to resolve the matter informally.

19.3 Binding arbitration

Any dispute, claim, or controversy arising out of or relating to these Terms or the Service that is not resolved informally under Section 19.2 will be resolved by final and binding arbitration administered by the American Arbitration Association ("AAA") under its Consumer Arbitration Rules, by a single arbitrator. The arbitration will be conducted in Phoenix, Arizona, or by videoconference for claims under USD $10,000. Judgment on the arbitral award may be entered in any court of competent jurisdiction.

Notwithstanding the foregoing, either party may bring an individual action in small-claims court for any qualifying claim.

19.4 Class-action and jury waivers

To the maximum extent permitted by law, you and Keymio each waive any right to (a) a jury trial and (b) participate in any class, collective, or representative action against the other in connection with these Terms or the Service. If a court or arbitrator decides that any part of this waiver is unenforceable, the unenforceable part will be severed; the remaining parts remain in force.

19.5 30-day opt-out from arbitration

You may opt out of the arbitration and class-action-waiver provisions in this Section 19 by sending written notice to support@keym.io within 30 days of first accepting these Terms, stating your name, account email, and the words "I opt out of arbitration." If you opt out, Section 19.3 and 19.4 do not apply to you, and disputes will instead be resolved in the state and federal courts located in Maricopa County, Arizona, to which you and Keymio submit to exclusive jurisdiction.

19.6 State-law preservation

Nothing in this Section 19 removes any non-waivable right granted to you under the consumer-protection law of your state of residence, including under California's McGill rule and equivalent statutes. Where any portion of this Section 19 is found unenforceable for a specific user under their state's law, that portion is severed for that user only and the remainder of this Section continues to apply.

20. General

Entire agreement. These Terms (with the Privacy Policy and Refund Policy) are the entire agreement between you and Keymio in respect of the Service and supersede any prior agreement.
Severability. If any provision is held unenforceable, the rest remain in force.
No waiver. Failure to enforce any provision is not a waiver of the right to enforce it later.
Assignment. You may not assign your rights without our written consent. We may assign these Terms in connection with a corporate restructuring, merger, or acquisition.
Notices to Keymio. Send to support@keym.io or by post to our registered office above.
Notices to you. Sent to the email address on your account.
No agency. Nothing in these Terms creates a partnership, joint venture, agency, or employment relationship between you and Keymio.

21. Contact

Questions about these Terms? Email support@keym.io.

End of Terms of Service v1.0.