TERMS AND CONDITIONS FOR LETON
Last Updated: January 2026
1 Introduction
These Terms and Conditions (“Terms”) govern your access to and use of the Leton construction project management platform (“Service”). By creating an account, accessing, or using the Service, you agree to be bound by these Terms. If you do not agree, you must not use the Service.
If you use the Service on behalf of a company or organization, you confirm that you have the authority to bind that entity to these Terms.
You must be at least 18 years old and legally capable of entering into binding agreements.
2 Description of the Service
Leton is a cloud-based construction project management platform designed to support construction companies with project execution, procurement, contracts, financial tracking, and internal team coordination.
Core functionality currently includes:
Project Management
Project creation and lifecycle management
Project dashboards with execution and financial overview
Project-level document storage and organization
Project notes
Project status tracking (Active, On Hold, Completed, Archived)
Action Plan (Project Execution)
Timeline scheduling (Gantt-style)
Cost code management
Daily logs
Progress tracking by cost code
Prospects
Client proposals with acceptance or rejection workflows
Proposal templates
Subcontractor RFPs and bid management
Purchase orders
Contracts
Client contracts
Subcontractor contracts
Change orders
Accounting
Client and vendor management
Sales (invoices and payment tracking)
Expenses (vendor invoices and payment tracking)
Direct cost tracking for internal management purposes
Team
Team member management
Role-based access
Labor and cost inputs for internal tracking purposes
Financial & Export Features
Multi-currency support (e.g. EUR, USD, CHF, GBP, ALL)
Excel (XLSX) exports
PDF exports for certain documents (such as proposals, invoices, or reports, where available)
Some features may be in active development, beta, or subject to change.
3 Feature Availability and Modifications
We continuously improve the Service. Features may be added, modified, limited, or removed over time.
Where reasonably possible, we will provide notice of material changes through the Service or via email. You acknowledge that the Service may evolve and that continued use constitutes acceptance of such changes.
4 Account Registration and Company Workspaces
To use the Service, you must create an account using a valid email address and password.
Upon signup, a company workspace is created. A registered company is not required to create a workspace; you may update the workspace name at any time.
Each workspace:
Is logically isolated from all other workspaces
Contains all projects, financial data, and team data
Is managed by one or more Company Administrators
5 User Roles and Access Control
Leton uses role-based access control. Available roles include:
Company Admin – Full access, including user management and all data
Project Manager – Project execution access with limited accounting visibility
Project Accountant – Accounting access with limited execution access
Procurement Manager – Proposal and procurement access with limited visibility elsewhere
Non-admin users may be restricted to specific projects.
6 Invitations and User Management
Company Administrators may invite users via email. Invitations:
Expire after 7 days
Can be resent with a new invitation link
Require acceptance of these Terms before access is granted
Administrators are responsible for managing user access and permissions.
7 Account Security
You are responsible for:
Maintaining the confidentiality of your login credentials
All activity under your account
Promptly notifying us of any unauthorized access
We implement reasonable security measures but cannot guarantee absolute security.
8 Subscriptions and Payments
The Service may be offered through trials, monthly subscriptions, or annual subscriptions.
Subscription fees:
Are billed in advance
Are non-refundable unless required by law or explicitly agreed
May change with reasonable notice
Failure to pay may result in suspension or termination of access.
9 User Content and Data Ownership
You retain ownership of all data, documents, and content you upload or create within the Service (“User Content”).
You grant Leton a limited, non-exclusive license to store, process, and display User Content solely to provide and operate the Service, including backups and anonymized analytics.
You are responsible for the accuracy, legality, and integrity of your User Content.
10 Data Export and Retention
You may export your data using available export features, including Excel (XLSX) and PDF where supported.
Data retention depends on account status:
Active accounts retain data
Closed accounts may retain data for a reasonable period before deletion
Backups may persist temporarily as part of normal operations
You are responsible for exporting data before account termination.
11 Acceptable Use
You may use the Service only for lawful business purposes.
You must not:
Attempt unauthorized access
Circumvent security controls
Upload malware or harmful code
Use the Service for fraud, illegal activity, or infringement of third-party rights
Share login credentials
Violations may result in suspension or termination.
12 Third-Party Services
Leton relies on third-party infrastructure providers for hosting, authentication, storage, and email delivery.
We do not use advertising trackers or sell user data. Essential service providers may process limited technical data solely to operate the Service.
13 Intellectual Property
All intellectual property rights in the Service, including software, design, branding, and documentation, belong to Leton.
You receive a limited, non-exclusive, non-transferable license to use the Service during your subscription.
You may not copy, reverse engineer, resell, or misuse the Service or its branding.
14 Confidentiality
Both parties agree to keep non-public business, technical, and financial information confidential and to use it only for purposes related to the Service.
Confidentiality obligations do not apply to information that is public, independently developed, or legally required to be disclosed.
15 Disclaimers
The Service is provided “as is” and “as available”.
We do not guarantee uninterrupted availability, error-free operation, or accuracy of outputs.
Leton does not provide legal, accounting, tax, engineering, or professional advice. All calculations (including taxes, currency conversions, retainage, or financial summaries) are for convenience only and must be independently verified.
16 Limitation of Liability
To the maximum extent permitted by law, Leton is not liable for indirect, incidental, consequential, or loss-of-profit damages.
Our total liability arising from or related to the Service is limited to the fees paid by you to Leton in the 12 months preceding the event giving rise to the claim.
17 Indemnification
You agree to indemnify and hold harmless Leton from claims arising out of:
Your use of the Service
Your User Content
Your violation of these Terms
Your violation of applicable laws or third-party rights
18 Termination
You may terminate your account at any time by contacting support.
We may suspend or terminate access for breach, non-payment, legal requirements, or security reasons.
Upon termination, your access ends and data may be deleted after a reasonable retention period.
19 Governing Law and Jurisdiction
These Terms are governed by the laws of [Jurisdiction].
Any disputes shall be subject to the exclusive jurisdiction of the courts located in [Jurisdiction].
20 General Provisions
These Terms constitute the entire agreement between you and Leton.
If any provision is unenforceable, the remaining provisions remain valid.
We may update these Terms from time to time. Continued use of the Service constitutes acceptance of the updated Terms.
21 Contact Information
Support
Email: support@leton.online
Legal
Email: legal@leton.online
Website: https://leton.online
By using the Service, you confirm that you have read, understood, and agree to these Terms and Conditions.