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Terms of Service

Last updated: 12 October 2026

1. Agreement to Terms

By accessing or using techserenityit.com, the Isal application, or the KhazeenaVault (Khazeena) document vault (collectively "the Services"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use the Services.

These Terms are entered into between you and Tech Serenity IT, Al Maabela, Muscat, Oman ("Company", "we", "our", or "us").

2. Description of Services

Tech Serenity IT provides an IT solutions website and two web applications:

  • Isal — an online invoice generator for freelancers and small businesses to create, download, print, and manage professional invoices. Offered with a free guest mode and a paid plan (30-day free trial available).
  • KhazeenaVault (Khazeena) — a secure document vault that allows users to store, organise, track expiry dates, and share personal and company documents such as passports, IDs, trade licenses, and contracts.

Guest Mode (Free · No Account Required)

  • Create invoices using 3 free templates
  • Download invoices as PDF — each carries a small “Made with Isal” line
  • Print the PDF, or attach it to an email from your own email account
  • Use 10 supported currencies, in English or Arabic
  • Data stored only in your browser (localStorage)

Isal Pro (30-day Free Trial · 29 RO/year or 3.5 RO/month + VAT)

  • All guest-mode features, plus:
  • Arabic RTL invoice layout and fonts
  • 15 templates including 12 premium designs (statutory Tax Invoice, Letterhead VAT invoice, Receipt, Bill, Thermal, six trade themes, and a Custom designer)
  • Cloud invoice history (save, edit, delete)
  • Auto-incrementing invoice numbers
  • 30-day free trial with limited volume (up to 15 invoices). Pro includes up to 100 new invoices per calendar month; editing an existing invoice does not count. Isal Business raises this to 500 a month for 79 RO/year or 8 RO/month + VAT.
  • Isal is not included in KhazeenaVault company packs. It can be added to a pack for 19 RO/year + VAT.
  • Pro is prepaid for the period you choose (one year or one month), paid by card through our third-party payment provider, which handles your card details; we never store them. There is no automatic renewal.
  • Paying while a trial or Pro period is still running adds the new period to its end.
  • When a trial or paid period ends without renewal, the account moves to the Free plan: up to 5 new invoices per calendar month, the free templates only, no emailing, digital signing or vendor bills, and a small “Made with Isal” line on each invoice. Existing invoices remain viewable, editable and downloadable.
  • No credit card is required to start the trial.

2b. KhazeenaVault (Khazeena) — Document Vault

KhazeenaVault is a cloud-based document management service. By using KhazeenaVault you acknowledge and agree to the following:

Document Storage

  • You may store personal and company documents including but not limited to passports, national IDs, driving licences, and contracts.
  • Each file upload is limited to 10 MB. A per-account storage quota applies.
  • You are solely responsible for ensuring you have the right to store and share any document you upload.

KhazeenaVault Pro (30-day Free Trial · 29 RO/year or 3.5 RO/month + VAT)

  • New accounts start with a 30-day trial of Pro, limited to 100 personal documents. No card is required.
  • Pro is prepaid for the period you choose (one year or one month), paid by card through our payment provider, on the same terms as Isal Pro above. There is no automatic renewal; paying again extends the current period.
  • A company vault runs on its owner's plan. Individual Pro allows up to 3 company-vault users (the owner included); a company pack allows the number of users stated in its quote (5, 10, 20, 50 or as agreed). Users are people who sign in; documents of employees who do not sign in are not counted.
  • When a trial or paid period ends without renewal, the account moves to the Free plan, which is free for personal use with no time limit: a personal vault of up to 50 documents (renewed versions of a document count once), 250 MB, files up to 5 MB and documents for up to 5 people; up to 10 uploads a day and 30 a month, and 30 automatic reads of photos or scans a month; no new company-vault documents and no emailing of documents. Existing documents, personal and company, remain viewable and downloadable.

Data Retention & Deletion

  • Your documents are stored in a private, isolated database and object storage bucket accessible only to your account.
  • You may delete individual documents at any time from your dashboard.
  • Deleting your account will result in the permanent deletion of all your uploaded files from both the database and storage within 30 days. Contact us at info@techserenityit.com to request account deletion.
  • We are not liable for document loss due to accidental deletion by the user.

Sensitive Documents

  • KhazeenaVault is intended for personal and business document organisation. Do not use it as your sole backup for critical documents.
  • We employ encryption in transit (HTTPS) and per-user data isolation. We do not access your documents except where required by law.
  • Sharing documents via email or WhatsApp is initiated solely by you. Shared links or content are your responsibility.

Company Accounts

  • Company admins are responsible for the documents uploaded by their team members.
  • Removing a member from a company account schedules their personal files for deletion after 30 days. Admins may purge files immediately.

2c. Payments, VAT and Refunds

  • All prices are in Omani Rial and exclude VAT. VAT is added at checkout at the rate in force in the Sultanate of Oman (currently 5%) and is shown separately before you pay and on your receipt.
  • Pro is activated as soon as payment is confirmed, so all payments are final and non-refundable, in whole or in part, except as set out in our Refund Policy, which forms part of these Terms.
  • By completing a payment you accept the Refund Policy.

3. User Accounts

  • You must provide accurate information when creating an account.
  • You are responsible for maintaining the confidentiality of your account credentials.
  • You are responsible for all activity that occurs under your account.
  • You must be at least 13 years old to create an account.
  • One person may not maintain more than one trial account to circumvent trial volume limits.
  • We reserve the right to suspend or terminate accounts that violate these Terms.

4. Acceptable Use

You agree not to use the Service to:

  • Create fraudulent invoices or engage in any form of financial fraud.
  • Impersonate another person or business.
  • Violate any applicable laws or regulations.
  • Attempt to gain unauthorised access to other users' accounts or data.
  • Reverse engineer, decompile, or attempt to extract the source code of the Service.
  • Use automated scripts or bots to create invoices in bulk.
  • Upload malicious code, viruses, or any content that could harm the Service or its users.
  • Use the Service for any unlawful, harmful, or offensive purpose.

5. Your Content

You retain all rights to the content you create using the Service (your invoices, business information, logos, and client data). By using the Service, you grant us a limited, non-exclusive licence to store and process your content solely to provide the Service to you.

You represent that you have the right to use all content you submit through the Service and that your content does not violate any third-party rights.

6. Intellectual Property

The Service, including its design, code, templates, branding, and content (excluding user-submitted content), is owned by Tech Serenity IT and is protected by copyright, trademark, and other intellectual property laws. You may not copy, reproduce, distribute, or create derivative works from any part of the Service without our written permission.

7. Advertisements

The Service may display advertisements served by Google AdSense and other advertising partners. These advertisements help us provide the Service free of charge. By using the Service, you acknowledge that advertisements may be displayed and agree to our Privacy Policy regarding the use of cookies for advertising purposes.

8. Service Availability and Changes

  • We strive to keep the Service available 24/7 but do not guarantee uninterrupted access.
  • We reserve the right to modify, suspend, or discontinue the Service at any time with reasonable notice.
  • We may change or remove features, including daily invoice limits, with notice.
  • We are not liable for any loss resulting from downtime or service changes.

9. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE ERROR-FREE OR UNINTERRUPTED.

We are not responsible for the accuracy, completeness, or legality of any invoices you create using the Service. You are solely responsible for ensuring your invoices comply with applicable tax and legal requirements in your jurisdiction.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, TECH SERENITY IT SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM YOUR USE OF THE SERVICE, INCLUDING BUT NOT LIMITED TO LOSS OF DATA, REVENUE, OR BUSINESS OPPORTUNITIES, EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

OUR TOTAL LIABILITY TO YOU FOR ALL CLAIMS ARISING FROM OR RELATED TO THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE TWELVE MONTHS PRECEDING THE CLAIM (OR OMR 10 IF YOU HAVE NOT MADE ANY PAYMENTS).

11. Indemnification

You agree to indemnify, defend, and hold harmless Tech Serenity IT and its officers, employees, and agents from any claims, liabilities, damages, and expenses (including legal fees) arising from your use of the Service, your violation of these Terms, or your violation of any third-party rights.

12. Termination

We may terminate or suspend your account immediately, without notice, if you violate these Terms. Upon termination, your right to use the Service ceases immediately. You may close your account at any time from Profile → Close account, after downloading your data from Profile → Download your data. You are responsible for keeping copies of any invoices and records you are legally required to retain (Oman's VAT law requires 10 years); data deleted at your request cannot be recovered. You may also request deletion by contacting us at info@techserenityit.com.

13. Changes to Terms

We reserve the right to update these Terms at any time. We will notify you of material changes by updating the "Last updated" date. Continued use of the Service after changes constitutes acceptance of the updated Terms.

14. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of the Sultanate of Oman. Any disputes arising from these Terms or your use of the Service shall be resolved in the courts of Muscat, Oman.

Contact Us

If you have questions about these Terms: