These Terms of Service ("Terms") govern your use of ganttchartmaker.app ("the Service"), a free Gantt chart maker operated by Fotis Petrou ("we", "us", "our"). By using the Service you agree to these Terms. If you do not agree, do not use the Service.
1. Operator details
- Name: Fotis Petrou
- Operator type: Private individual (non-commercial service)
- Address: 7th km PEO Larisas-Volou, 41500 Melissochori, Greece
- Email: fokompet@gmail.com
2. The Service
ganttchartmaker.app is a free, web-based tool for creating and editing Gantt charts. Optional features include cloud storage of charts, real-time collaboration, and sharing by link or in-app invitation. The Service is provided "as is" and "as available", to the extent permitted by Greek consumer law.
You may use the Service without creating an account. Charts created while signed out are stored locally on your device only. Cloud features and collaboration require sign-in.
3. Eligibility
You must be at least 15 years old to create an account or use cloud features. This is the age of digital consent under Greek Law 4624/2019. By creating an account you confirm that you meet this requirement. If you are younger, you may still use the offline (browser-local) features of the Service, but you may not create an account.
4. Your account
- You create an account by signing in with one of the supported providers — Google, GitHub, or Microsoft. There is no separate email-and-password login: those providers handle sign-in and we never receive or store a password.
- You are responsible for keeping the Google, GitHub, or Microsoft account you sign in with secure. Anyone with access to that account can access your charts.
- You must provide accurate, current, and complete information when creating an account.
- You may delete your account at any time from Settings → Account → Delete account.
- We may suspend or terminate accounts that violate these Terms or applicable law — see §9.
5. Your content
- You retain all intellectual-property rights to the Gantt charts you create.
- You grant us a non-exclusive, worldwide, royalty-free licence to store, display, transmit, and back up your charts solely for the purpose of operating the Service for you and for users you have shared the chart with. This licence ends when you delete the chart, except for backups which are purged within 90 days.
- You are responsible for the legality of the content you upload. You must not store content that is illegal, infringing, defamatory, threatening, harassing, obscene, or otherwise objectionable.
- We do not claim ownership of your charts and will not use them for advertising, AI training, or any commercial purpose without your explicit, separate consent.
6. Acceptable use
You agree NOT to:
- Use the Service to violate any law or third-party right.
- Attempt to gain unauthorised access to other users' accounts, charts, or data.
- Probe, scan, or test the security of the Service without our prior written permission.
- Reverse engineer, decompile, or disassemble the Service except as expressly permitted by law.
- Use the Service to send spam, malware, or phishing content; to harass or threaten other users; or to impersonate any person or entity.
- Scrape, crawl, or use automated means to access the Service beyond reasonable normal use — other than through our official interface (API or a connected AI assistant) accessing data you are entitled to, as described below.
- Interfere with or disrupt the Service or the servers it runs on, including via denial-of-service attacks.
- Resell, sublicense, or commercially redistribute access to the Service without our written permission.
API and AI assistants. We provide an official interface (a Model Context Protocol server) that lets you — or an AI assistant you authorise, such as Claude or ChatGPT — list, read, create, and edit your own charts (and charts shared with you) programmatically. This authorised use is permitted and is not "scraping" under this section. You remain responsible for everything done through a connected assistant or access token, must keep that token confidential, and must not use it to access data you are not entitled to, exceed reasonable rate limits, or disrupt the Service. We may revoke API or assistant access that abuses the Service.
7. Free tier and advertising
The Service is currently free. We may show advertising provided by Google AdSense or similar networks to support the Service. Personalised advertising requires your separate consent given through the cookie banner.
We may, with at least 30 days' notice, introduce paid plans for advanced features. Existing functionality you rely on will remain free unless we announce otherwise with the same notice period.
8. Third-party services
The Service integrates with third-party providers. Their terms and privacy practices apply to your use of those services as part of the Service:
9. Suspension and termination
- You may terminate your relationship with us at any time by deleting your account (see §4.4).
- We may suspend or terminate your account, with or without notice, if you materially breach these Terms, violate applicable law, or pose a security risk to the Service or other users. Where practicable we will notify you first and give you a reasonable chance to remedy.
- On termination by either party, we will delete your account data from production systems within 30 days (backups within 90 days), except where retention is required by law (for example for tax purposes).
- Sections that by their nature should survive termination (intellectual-property rights, disclaimers, limitations of liability, governing law) survive.
10. Discontinuance of the Service
We may discontinue the Service or any feature at any time. If we discontinue the Service entirely or in a way that significantly affects your ability to access your data, we will give signed-in users at least 30 days' notice via in-app notification, and we will provide a self-service data export during that period.
11. Disclaimers and limitation of liability
- The Service is provided "as is" and "as available". To the maximum extent permitted by applicable law, we disclaim all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement.
- To the maximum extent permitted by law, we will not be liable for indirect, incidental, consequential, special, exemplary, or punitive damages, including loss of data, loss of profits, or business interruption, arising from your use of the Service.
- Nothing in these Terms limits liability that cannot be limited under applicable Greek law, including liability for death or personal injury caused by negligence, liability for fraud or fraudulent misrepresentation, or rights you have as a consumer under Greek Law 2251/1994 and Directive 2011/83/EU.
12. Indemnification
You agree to defend, indemnify, and hold us harmless from any third-party claim, damage, loss, or expense (including reasonable legal fees) arising from your breach of these Terms or your unlawful use of the Service. This obligation does not apply to the extent any claim arises from our own negligence or wilful misconduct, and does not apply to consumers acting outside their trade, business, or profession to the extent that Greek consumer law restricts it.
13. Governing law and disputes
- These Terms are governed by the law of the Hellenic Republic (Greece).
- Disputes arising from or related to these Terms are subject to the exclusive jurisdiction of the competent courts of Larisa, Greece, without prejudice to the mandatory consumer right under Regulation (EU) 1215/2012 to bring proceedings before the courts of the EU member state where the consumer is domiciled.
- EU consumers may also use the European Commission's Online Dispute Resolution platform: ec.europa.eu/odr.
14. Digital Services Act (DSA) — single point of contact
For communications under the EU Digital Services Act (Regulation (EU) 2022/2065), the single point of contact for users, authorities, and the Commission is: fokompet@gmail.com. Communications accepted in English and Greek.
15. Changes to these Terms
We may update these Terms. Material changes will be announced in-app via the notifications bell at least 30 days before they take effect. Continued use after the effective date constitutes acceptance of the updated Terms. If you do not agree to a material change, you may delete your account and export your data before the change takes effect.
16. Miscellaneous
- Entire agreement: these Terms, together with the Privacy Policy and Cookie Policy, constitute the entire agreement between you and us regarding the Service.
- Severability: if any provision of these Terms is held unenforceable, the remaining provisions remain in effect.
- No waiver: our failure to enforce any right under these Terms is not a waiver of that right.
- Assignment: we may assign these Terms in connection with a merger, acquisition, or sale of assets. You may not assign these Terms without our prior written consent.
- Language: these Terms are written in English; translations are provided for convenience. In the event of a conflict, the English version prevails — except where Greek consumer law requires otherwise.
17. Contact
Questions about these Terms: fokompet@gmail.com.