Terms of Use
Effective date: June 5, 2026
Last updated: July 14, 2026
1. About these terms
These Terms of Use ("Terms") govern your use of the TDY Slayer mobile application ("TDY Slayer," the "App," "we," "us," or "our"), published by Southwind Digital LLC ("Southwind Digital"). By downloading, installing, or using TDY Slayer you agree to these Terms. If you do not agree, do not use the App.
TDY Slayer is provided to you as a personal productivity tool. It is not affiliated with, endorsed by, or sponsored by the U.S. Department of Defense, the Defense Travel System (DTS), the Defense Travel Management Office (DTMO), the U.S. General Services Administration (GSA), the U.S. Department of the Treasury, or any branch of the U.S. Armed Forces.
2. What TDY Slayer does
TDY Slayer helps you:
- Capture photos and PDFs of receipts and other travel documents during official government travel.
- Read structured information from those documents using cloud-based AI.
- Organize that information by trip so you can prepare a Defense Travel System (DTS) voucher more quickly.
- Provide estimates of common travel allowances using publicly available U.S. Government reference data bundled with the App.
- Export a summary you can use as a worksheet when entering a voucher into DTS.
TDY Slayer is free to download. Capturing receipts, reading them with OCR, and building a trip are free. Some features are part of TDY Slayer Pro, an optional auto-renewing subscription described in Section 6.
TDY Slayer is an organizational aid. It does not submit vouchers to DTS, does not transmit anything to your finance office, and does not communicate with any official government system. You remain solely responsible for accurately entering and submitting your travel voucher in DTS in accordance with the Joint Travel Regulations (JTR), your service's supplemental guidance, and your finance office's instructions.
3. Eligibility
You must be at least 18 years old to use TDY Slayer. By using the App you represent that you have the legal authority to agree to these Terms.
TDY Slayer is designed for use by U.S. military service members, DoD civilians, and other authorized government travelers preparing DTS vouchers. You may use the App in connection with personal travel reimbursement claims (for example, contractor expense reports), but the App's reference data, computations, and copy are tuned for DTS use cases. We make no claim of suitability for any other reimbursement system.
4. Your account and your device
TDY Slayer uses Sign in with Apple to connect your device to the cloud OCR service. We do not receive your name or email through this sign-in — only an Apple-provided identifier and the tokens needed to operate the service (see the Privacy Policy, Section 4). Your trip data and receipt images are stored on your device in an Apple App Group container that is shared between the App and its Share Extension.
You are responsible for:
- Keeping your device secure (passcode, biometric lock, current iOS version).
- Backing up your device through iCloud or another method if you want to preserve your data.
- Any operational security ("OPSEC") considerations that arise from storing travel patterns, locations, and dates on your device.
If you delete the App, your trip data and receipt images stored locally are deleted with it. We cannot recover them. To also remove the small per-user sign-in record our service holds, use the Delete Account option in the Profile tab before uninstalling.
5. The OCR service
To read information from receipts, the App sends receipts and other documents to a Cloudflare Worker operated by Southwind Digital, which in turn uses one or more commercial AI models (currently xAI's Grok and Anthropic's Claude). See the Privacy Policy for details on what is sent, how long it is retained, and what protections apply.
The OCR service is provided on a best-effort basis. AI can and does make mistakes. You agree to:
- Review every field the App produces from a receipt before relying on it. The App will surface items it thinks need your attention, but the final accuracy is your responsibility.
- Verify totals, dates, locations, and other voucher data against the source receipt before entering them in DTS.
- Not rely on the App's per-diem, M&IE, mileage, or other travel-allowance estimates as authoritative. They are convenience features for sanity-checking, not official rate authority.
6. Subscriptions and payment
What is free
TDY Slayer is free to download, and the work of getting your receipts into shape is free:
- Capturing, importing, and sharing receipts and other documents into the App.
- Reading them with the cloud OCR service.
- Creating and editing trips, expenses, mileage, and your itinerary.
- Your first trip is always free, permanently. You can prepare, review, export, and file one complete voucher without ever subscribing, whenever you actually travel.
- A limited free period for additional trips, beginning when you create your first trip. The length of that period is shown in the App.
What TDY Slayer Pro includes
A TDY Slayer Pro subscription unlocks:
- The completed DTS voucher — the expense lines and totals the App assembles from your receipts.
- The advisories that flag expenses you may be missing or that need your attention.
- The summary sheet included in your export packet.
- Voucher Audit, which reviews a voucher you have already filed and identifies what you may be able to claim.
Price, billing, and automatic renewal
- TDY Slayer Pro is offered as a monthly and a yearly auto-renewing subscription. The exact price and subscription period for your region are shown on the subscription screen inside the App before you purchase, and are set by us in the Apple App Store.
- Payment is charged to your Apple Account at confirmation of purchase.
- Your subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. Your Apple Account is charged for renewal within 24 hours before the end of the current period, at the then-current price for your plan.
- You can manage or cancel your subscription at any time in your Apple Account settings (on iPhone: Settings → your name → Subscriptions), or via Manage subscription in the App's Profile tab. Deleting the App does not cancel your subscription.
- If we change the price of a subscription, Apple will notify you and obtain your consent before the new price takes effect, as required by Apple's rules.
Free periods and introductory offers
- The free access described above is provided by us inside the App. It is not an Apple free trial: it requires no purchase and no payment method, and nothing is charged automatically when it ends. When it ends, the Pro features are simply covered again until you choose to subscribe.
- If we offer an Apple introductory offer or free trial through the App Store, its terms will be disclosed on the subscription screen before you purchase. Any unused portion of a free period is forfeited when you purchase a subscription.
Refunds
Purchases are processed by Apple, not by Southwind Digital. We cannot issue refunds. Refund requests are handled by Apple under its own policies — you can request one at reportaproblem.apple.com. Except where required by law, subscription fees are non-refundable, and there are no refunds or credits for partially used periods.
Restoring a purchase
If you reinstall the App or move to a new device, use Restore on the subscription screen (or Restore purchases in the Profile tab) to restore an active subscription associated with your Apple Account.
If your subscription ends
If you cancel or your subscription lapses, you keep everything you have already created. Your receipts, trips, and data remain on your device and remain exportable, and any voucher you filed in the App while you had access stays fully viewable. The Pro features listed above are covered again until you resubscribe.
7. Acceptable use
You agree not to:
- Use TDY Slayer to prepare any voucher you know or have reason to believe contains false, inflated, or otherwise non-reimbursable claims. False claims against the government may be a federal offense under 18 U.S.C. § 287, the False Claims Act, and the Uniform Code of Military Justice. You bear sole responsibility for the truthfulness of anything you submit to DTS.
- Reverse engineer, decompile, or attempt to extract source code from the App, except to the extent applicable law expressly permits.
- Interfere with, abuse, or attempt to circumvent the rate limits or authentication on the cloud OCR service.
- Use the App in a way that violates the Joint Travel Regulations, your service's supplemental guidance, your command's instructions, or U.S. law.
- Use the App to process documents that are classified or otherwise restricted from being processed on a personal commercial device. TDY Slayer runs on commercial cloud infrastructure (Cloudflare and commercial AI providers) and is not authorized for classified information.
8. Intellectual property
The App, including its code, design, copy, and any proprietary methods used inside it, is owned by Southwind Digital LLC or its licensors and is protected by U.S. and international copyright, trade secret, and other intellectual property laws.
Apple's App Store license terms also apply to your use of the App.
Publicly available U.S. Government reference materials bundled with the App (such as travel regulations and per-diem tables) are works of the U.S. Government and are not copyrighted. They are included for your reference convenience.
9. Your content
Receipts, photos, trip data, personal information, and any other content you create in or import into the App ("Your Content") remain yours. You grant Southwind Digital a limited license to process Your Content solely to provide the App's features (including sending images to the OCR service and storing them locally on your device). We do not claim ownership of Your Content.
10. Disclaimers
TDY Slayer is provided "as is" and "as available" without warranties of any kind. To the maximum extent permitted by law, Southwind Digital disclaims all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement.
We do not warrant that:
- The App will be uninterrupted, error-free, or available at any particular time.
- The OCR results will be accurate, complete, or current.
- The travel-allowance or currency-conversion estimates produced by the App will match the figures DTS or your finance office actually applies to your voucher.
- The App will be compatible with any particular version of iOS or any particular iPhone model.
You are solely responsible for the contents of any voucher you submit. Reimbursement decisions are made by your finance office under the JTR and your service's regulations, not by Southwind Digital or by this App. If a voucher is rejected, reduced, or audited, that is between you and your finance office.
11. Limitation of liability
To the maximum extent permitted by law, in no event will Southwind Digital LLC, its members, officers, employees, contractors, or affiliates be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, data, reimbursement, or goodwill, arising out of or related to your use of (or inability to use) the App, even if advised of the possibility of such damages.
Southwind Digital's total cumulative liability arising out of or related to these Terms or the App will not exceed the greater of (a) the amount you paid Southwind Digital for the App in the twelve months preceding the claim, or (b) U.S. $50.
Some jurisdictions do not allow the exclusion of certain warranties or the limitation of certain damages, so some of the above may not apply to you. In that case, our liability is limited to the smallest extent permitted by applicable law.
12. Indemnification
You agree to indemnify and hold harmless Southwind Digital LLC and its members, officers, employees, contractors, and affiliates from and against any claims, damages, liabilities, costs, and expenses (including reasonable attorneys' fees) arising out of or related to (a) your use of the App, (b) Your Content, (c) any voucher you submit in DTS or any other reimbursement system in reliance on the App, or (d) your violation of these Terms or applicable law.
13. Changes to the App and to these Terms
We may update the App from time to time to add features, fix bugs, or maintain compatibility. We may also update these Terms. Material changes will be reflected in the "Last updated" date at the top of this document and, where appropriate, surfaced inside the App. Your continued use of the App after a change becomes effective constitutes acceptance of the updated Terms.
If a change to these Terms is unacceptable to you, your sole remedy is to stop using and uninstall the App.
14. Termination
You may stop using the App at any time by deleting it from your device. If you have an active subscription, deleting the App does not cancel it — Apple manages the billing, so you must cancel through your Apple Account settings (see Section 6).
We may suspend or terminate your access to the cloud OCR service (or any future Southwind Digital service) at any time, with or without notice, for any reason, including suspected abuse, suspected fraud, or suspected violation of these Terms. If we terminate your access for a reason other than your breach of these Terms while you hold a paid subscription, you may request a refund from Apple as described in Section 6.
Sections 6 (as to fees already charged), 8 through 12, and 14 through 17 survive termination.
15. Governing law and disputes
These Terms are governed by the laws of the State of Kansas, without regard to its conflict-of-laws rules. Any dispute arising out of or related to these Terms or the App will be resolved exclusively in the state or federal courts located in Sedgwick County, Kansas, and you consent to the personal jurisdiction of those courts.
Nothing in this section limits any rights you may have under the consumer-protection laws of your state or country that cannot be waived by contract.
16. Apple App Store terms
If you downloaded the App from the Apple App Store, the following also applies:
- These Terms are between you and Southwind Digital LLC, not Apple. Apple is not responsible for the App or its contents.
- Apple has no obligation to provide maintenance or support for the App.
- In the event of any failure of the App to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price (if any). To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the App.
- Apple is not responsible for addressing any claims by you or any third party related to the App, including product-liability, regulatory-compliance, or intellectual-property claims.
- Apple and Apple's subsidiaries are third-party beneficiaries of these Terms and may enforce them against you.
17. Contact
Questions about these Terms? Email [email protected].
Southwind Digital LLC