Last updated: July 6, 2026
1. Who we are and what this agreement covers
Tachlogic is a shop-management software platform (the "Service") owned and operated by FORMULAIC LLC, an Illinois limited liability company ("FORMULAIC," "we," "us," or "our"). Tachlogic is a product and brand of FORMULAIC LLC, its parent company, and all references to Tachlogic in these Terms mean FORMULAIC LLC doing business as Tachlogic.
These Terms of Service (the "Terms") are a binding agreement between FORMULAIC LLC and the business on whose behalf an account is created ("you" or "your shop"). By creating an account, checking the acceptance box during signup, or using the Service, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the Service.
The Service is offered to businesses only, not to consumers. The person who creates a shop account represents that they are at least 18 years old and have the authority to bind the business to these Terms.
2. The Service
Tachlogic provides tools for running a repair or service shop, which may include invoicing, estimates, customer and vehicle records, payment processing, statements, scheduling, inventory, time tracking, and reporting. We may add, change, or remove features over time. Features described as beta, preview, or experimental are provided as-is and may change or be withdrawn without notice.
3. Accounts and security
- You must provide accurate business information when creating your shop and keep it current.
- You are responsible for safeguarding login credentials and for all activity that occurs under your shop's accounts, including team members you invite.
- The account owner controls team roles and permissions and is responsible for their team's use of the Service.
- Notify us promptly at the contact address below if you suspect unauthorized access to your account.
4. Subscription, free trial, and billing
- Price. The Service costs $125 per month per shop, plus any applicable taxes. Pricing may change with at least 30 days' advance notice; changes take effect at your next renewal.
- Free trial. New shops receive a 14-day free trial. A payment card is collected when the trial starts, and the first charge occurs automatically when the trial ends unless you cancel before then. Each business is eligible for one free trial; resubscriptions do not receive a new trial.
- Automatic renewal. The subscription renews automatically each month and your card is charged each billing cycle until you cancel. You can cancel at any time in Settings → Subscription (via the Stripe billing portal); cancellation takes effect at the end of the current billing period.
- Refunds. Charges are non-refundable and there are no credits for partial months. When you cancel, you keep full access through the end of the period you paid for.
- Failed payments. If a renewal charge fails, we retry it. While retries continue the Service stays fully usable; if payment ultimately cannot be collected, the account drops to read-only: you and your team can view and export all of your data, but cannot create or change records until the subscription is restored.
- Billing processor. Subscription payments are processed by Stripe. We do not store your card details.
5. Payments you accept from your customers
The Service integrates with Stripe so your shop can accept card payments from your own customers (in person, by emailed payment link, or by QR code). If you use these features:
- You will be asked to create or connect a Stripe account, and your use of it is governed by Stripe's own agreements, including the Stripe Connected Account Agreement.
- Payments flow between you and your customers. We are not a party to those transactions and are not responsible for refunds, disputes, chargebacks, or the goods and services you sell.
- If you enable pricing features such as card surcharges, service fees, or cash-discount/dual pricing, you are solely responsible for using them lawfully — including state-law limits, card-network rules, registration and disclosure requirements, and rules about debit cards. The Service provides these as configurable tools, not as legal advice, and defaults do not guarantee compliance in your jurisdiction.
6. Your data
- You own your data. The business records you keep in Tachlogic — customers, vehicles, invoices, estimates, payment records, and similar content — belong to your shop.
- You grant us the limited rights needed to host, process, back up, display, and transmit that data solely to provide and improve the Service.
- We do NOT sell your data, and we do not share it with any third party for commercial purposes. Your data is disclosed only to the service providers needed to operate the Service itself (such as hosting, payment processing, login, and email delivery), as described in the Privacy Policy, or where the law requires.
- The Service is hosted on secure, industry-standard third-party cloud infrastructure; FORMULAIC LLC does not operate its own physical servers. Our infrastructure providers process data on our behalf under their own security and compliance programs.
- Your data is never held hostage. If your subscription lapses, your account becomes read-only and you can still view and export your data.
- After an account is terminated, we may retain data for a reasonable wind-down period (generally up to 90 days, and longer where the law requires) before deletion from active systems. Contact us to request earlier deletion.
- We take commercially reasonable measures to protect data, as described in the Privacy Policy, but no system is perfectly secure and you should maintain your own copies of critical records.
7. Your responsibilities
You are responsible for how your business uses the Service, including:
- The accuracy of the invoices, estimates, statements, and other documents you issue;
- Setting correct tax rates and collecting, reporting, and remitting taxes — Tachlogic performs arithmetic with the rates you configure, and is not tax, accounting, or legal advice;
- Complying with laws that apply to your business, including consumer-protection, warranty, employment, and record-keeping requirements;
- Having the right to store and use the customer information you enter, and honoring your own customers' privacy;
- The content of emails and documents you send through the Service, including having consent to contact the recipients.
8. Acceptable use
You agree not to:
- Use the Service for anything unlawful, fraudulent, or deceptive;
- Upload malware or content that infringes someone else's rights;
- Probe, disrupt, overload, or interfere with the Service or its security, or access another tenant's data;
- Reverse engineer, copy, resell, sublicense, or provide the Service to third parties as your own offering;
- Use the Service to send spam or unsolicited bulk messages.
We may suspend or terminate accounts that violate this section, with notice where practicable.
9. Intellectual property
The Service — including its software, design, and the Tachlogic and FORMULAIC names and logos — is owned by FORMULAIC LLC and protected by law. These Terms grant you a limited, non-exclusive, non-transferable right to use the Service for your business while your subscription is active. If you send us feedback or suggestions, we may use them without obligation to you.
10. Third-party services
The Service relies on third-party providers (for example Stripe for payments, Auth0 for login, and email delivery providers). Their availability and terms are outside our control, and we are not liable for their acts, omissions, or outages. Your use of connected third-party services is governed by their own terms.
11. Availability and support
We work to keep the Service available and to fix problems promptly, but we do not promise uninterrupted or error-free operation and no specific service level is guaranteed. We may perform maintenance that temporarily limits availability. Support is provided by email at the address below.
12. Disclaimer of warranties
The Service is provided "as is" and "as available." To the maximum extent permitted by law, FORMULAIC LLC disclaims all warranties, express or implied, including merchantability, fitness for a particular purpose, non-infringement, and any warranty that the Service will be uninterrupted, error-free, or that calculations (including tax, surcharge, or reporting figures) will be accurate or compliant for your jurisdiction. You use the Service at your own risk.
13. Limitation of liability
To the maximum extent permitted by law: (a) FORMULAIC LLC will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for lost profits, lost revenue, lost data, or business interruption, even if advised of the possibility; and (b) FORMULAIC LLC's total cumulative liability arising out of or relating to the Service or these Terms will not exceed the amounts you paid for the Service in the twelve (12) months before the event giving rise to the claim.
Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you. In those cases liability is limited to the smallest amount the law allows.
14. Indemnification
You will defend and indemnify FORMULAIC LLC and its members, officers, and employees against claims, damages, and expenses (including reasonable attorneys' fees) arising from: your use of the Service; the goods or services your shop sells; disputes between you and your customers or team members; content or data you submit; or your violation of these Terms or of applicable law (including payment-surcharge, tax, or consumer-protection rules).
15. Termination
- By you: cancel the subscription at any time as described in Section 4, and/or ask us to close the account entirely.
- By us: we may suspend or terminate the account for material breach of these Terms, non-payment, unlawful use, or risk to the Service or other customers — with notice where practicable.
- On termination, access ends (or becomes read-only in the case of lapsed payment) and data is handled as described in Section 6. Sections that by their nature should survive (including 6, 9, and 12–17) survive termination.
16. Changes to these Terms
We may update these Terms as the Service evolves. For material changes we will give notice — by email, in-app notice, or both — at least 30 days before the change takes effect where reasonably possible. Continued use of the Service after a change takes effect constitutes acceptance. The "Last updated" date above always reflects the current version.
17. Governing law and disputes
These Terms are governed by the laws of the State of Illinois, without regard to conflict-of-law rules. Before filing any claim, both parties agree to try in good faith to resolve the dispute informally by contacting the other party. Any dispute that cannot be resolved informally will be brought exclusively in the state or federal courts located in Illinois, and both parties consent to their jurisdiction and venue.
18. Miscellaneous
- These Terms, together with the Privacy Policy, are the entire agreement between you and FORMULAIC LLC regarding the Service.
- If any provision is found unenforceable, the rest remain in effect.
- You may not assign these Terms without our consent; we may assign them in connection with a merger, acquisition, or sale of assets.
- Neither party is liable for delay or failure caused by events beyond its reasonable control.
- Our failure to enforce a provision is not a waiver of it.
- Notices to you may be sent to the email address on your account; notices to us go to the contact address below.
- Nothing in these Terms creates a partnership, joint venture, or employment relationship.
19. Contact
FORMULAIC LLC (operating Tachlogic)
Email: contact@tachlogic.com