Legal
Terms of Service
Effective: March 30, 2026
Last updated: April 14, 2026
These Terms of Service govern your use of Stackey (stackey.me), operated by 1carat International Co., Ltd. By creating an account or using the service, you agree to these Terms.
By accessing or using Stackey, you confirm that you are at least 13 years of age and agree to be bound by these Terms. If you are under 18, you must have parental or guardian consent.
These Terms apply to all users of the service. Use of Stackey also implies acceptance of our Privacy Policy.
When you create an account, you agree to provide accurate and complete information.
- One account per person.
- You are responsible for maintaining the confidentiality of your password and for all activity under your account.
- Notify us immediately at Contact if you suspect unauthorized access to your account.
- Accounts may not be transferred, sold, or shared with others.
Stackey provides cloud-based file management including:
- File upload, storage, and management
- Automatic naming, categorization, and thumbnail generation
- Smart search by natural language and file content
- Import from external storage services (paid plans only)
Supported file types include PDF, images (JPG/PNG/HEIC), Office documents (Word/Excel/PPT), and text files. Video, audio, and archive files are not supported.
Plan limits and features are detailed on the pricing page.
You may not use Stackey to:
- Upload, store, or distribute illegal content (including copyright-infringing material, obscene content, or child sexual abuse material)
- Upload malware, viruses, or any other malicious files
- Attempt to gain unauthorized access to the service or other users' data
- Reverse engineer, decompile, or disassemble any part of the service
- Use automated tools to scrape, crawl, or overload the service
- Share, resell, or sublicense your account without authorization
- Build a competing product using our service or API
- Violate any applicable law or regulation
Violation of these rules may result in immediate account suspension or termination without refund.
Your files: You retain all rights to the files you upload. By using Stackey, you grant us a limited, non-exclusive license to process your files solely to provide the service.
Stackey: All rights in the service, brand, design, and software are owned by 1carat International Co., Ltd. Your use of the service grants you a non-exclusive, non-transferable right to use it as intended.
We do not use the contents of your files for training purposes — ever.
Paid plans are billed in advance via Stripe. Current pricing:
| Plan | Monthly | Annual |
| Trial | Free (10 files, once) | — |
| Everyday | $19.90 / month | $199.00 / year |
| Business | $44.90 / month | $449.00 / year |
| Extra Capacity | $9.90 / month | — |
- Monthly plans renew automatically each month; annual plans renew each year.
- The Trial plan is free, one-time only, and limited to 10 files. No credit card required.
- We will provide at least 30 days' notice of any price changes.
- Failure to pay may result in service suspension.
All sales are final. We do not offer refunds. Due to the digital and immediately accessible nature of the service, all subscription fees — monthly or annual — are non-refundable once payment has been processed, regardless of the reason.
No refunds will be issued for:
- Unused time remaining in a billing period after cancellation
- Partial months or partial years on any plan
- Accidental purchases (please cancel immediately to stop future charges)
- Dissatisfaction with the service
- Account suspension due to Terms violations
We encourage you to use the free Trial plan before subscribing to evaluate whether Stackey meets your needs.
You may cancel your subscription at any time by emailing [email protected].
- Access continues until the end of the current billing period after cancellation.
- No pro-rated refunds are issued for cancellations mid-cycle.
- Your data is retained for 30 days after account closure, then permanently deleted.
- We may suspend or terminate accounts that violate these Terms without notice.
- If we discontinue the service, we will provide at least 30 days' notice.
Stackey is provided "as is" without warranty of any kind. We are not liable for:
- Service interruptions, outages, or data loss
- The accuracy of auto-generated file names, categories, or summaries
- Content uploaded by users
- Loss or damage caused by unauthorized access to your account
- Events beyond our reasonable control (force majeure)
To the maximum extent permitted by law, our total liability to you shall not exceed the fees you paid in the three months preceding the claim.
We recommend maintaining your own backups of important files.
We reserve the right to modify, add, or remove features at any time. We will make reasonable efforts to notify users of significant changes in advance. Continued use after changes constitutes acceptance.
We may update these Terms from time to time. Material changes will be communicated by email or in-app notice. Continued use of the service after the effective date of any update constitutes acceptance of the revised Terms.
These Terms are governed by the laws of Japan. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.
Questions about these Terms? Please reach out:
1carat International Co., Ltd.
Kabutocho 6 Hayama Building 4F, 17-2 Nihonbashi Kabutocho, Chuo-ku, Tokyo 103-0026, Japan
Email: [email protected]
© 2026 1carat International Co., Ltd. All rights reserved.
These Terms are governed by the laws of Japan.