Privacy Policy
Last updated: October 3, 2026
1. Introduction
Line Echo ("we," "our," or "us") is an AI-powered script rehearsal platform designed to help actors practice their lines. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our application at lineecho.app ("the Service").
By using the Service, you consent to the practices described in this policy. If you do not agree, please do not use the Service.
2. Information We Collect
Account Information
When you create an account, we collect your email address and name. If you sign in with Google, we receive your name, email, and profile picture from Google. We do not receive or store your Google password.
Script Content
When you upload screenplay PDFs or images, we process them on our servers to extract dialogue, characters, sentiment, and scene information using AI. We also generate voice audio for scene partner characters using AI text-to-speech technology. Your uploaded scripts and extracted data are stored securely and associated with your account.
To do this, the contents of your script (its text, or the page images for photo uploads) are sent to the third-party AI services we use to read scripts and generate voices. We use these services under business terms that do not allow them to train their models on your content, and we never use your scripts to train AI models, for advertising, or for any purpose other than providing your rehearsals. Scripts are never sold.
Usage Data
We collect data about how you interact with the Service, including rehearsal session activity, feature usage, voice and playback preferences, and upload and new AI voice line usage counts for quota tracking. We keep records of your purchases and of your use of the Service so we can enforce plan limits, prevent fraud, and respond to payment disputes.
With your consent where the law requires it (see Cookies below), we also use product analytics and session recordings: recordings of how pages are used, such as clicks, scrolling and what appears on screen, which can include the text of your scripts. Typed passwords and form fields are masked. We use them to find bugs and improve the Service, never for advertising. We also collect error reports, including the page and actions that led to an error, to fix problems.
When you first visit, we store where you came from (the referring website, campaign tags and the page you landed on, never personal details) so we know which channels bring people to Line Echo.
Voice Data
When you use speech recognition during rehearsals, your voice is processed entirely on your device using on-device AI. Your voice data is never transmitted to our servers or any third party. We have no access to your voice recordings.
In our free tools (such as the teleprompter and line memorizer), you may choose your browser's built-in speech recognition instead of the on-device model. In that case your browser sends your voice to its own provider (for example Google in Chrome or Apple in Safari) under that provider's privacy policy. Line Echo never receives the audio.
Payment Information
Payments are processed by Polar. We do not directly collect, store, or have access to your credit card numbers or banking details. Polar provides us with your subscription status and customer ID for billing management.
3. How We Use Your Information
- To provide, maintain, and improve the Service
- To process and analyze your uploaded scripts using AI
- To generate AI voice-over audio for scene partner characters during rehearsal
- To track and enforce usage quotas based on your subscription tier
- To communicate with you about your account, updates, and support requests
- To send email verification and password reset messages
- To send occasional product updates and tips by email, which you can unsubscribe from at any time
- To understand how the Service is used and fix bugs, through analytics, session recordings and error reports
- To keep records of purchases and usage for billing, tax and payment dispute purposes
- To prevent fraud, abuse, and enforce our Terms of Service
5. Third-Party Services
We use trusted third-party services to operate the Service. These include providers for:
- Script analysis (AI): Your uploaded script text or page images are sent to AI model providers to extract characters, dialogue and emotion. Your name and email are not sent. They may not use your content to train their models.
- Voice generation (AI): Script line text is sent to generate AI voice-over audio for scene partner characters. Your name and email are not sent.
- Hosting, database and cloud storage: Store your account, scripts, uploaded files, generated audio and avatar images.
- Payment processing: Polar, our merchant of record, handles payments, taxes and invoices and receives your email and billing details. See Polar's privacy policy.
- Email delivery: Sends account emails (verification, password reset, welcome) and occasional product updates. Receives your email address.
- Product analytics and session recording: Records how the Service is used, as described above. Receives your account ID and email if you are signed in.
- Error monitoring: Receives error reports, including technical details of your browser and the actions that led to an error.
Each provider processes data only to deliver its service to us and operates under its own privacy policy. Some of them are located outside your country, including in the United States, so your data may be transferred internationally. We only share the minimum data each service needs, and we never sell your personal data.
6. Data Storage and Security
Your data is stored on secure cloud servers. We use encryption in transit (TLS/HTTPS) and follow industry-standard security practices to protect your information. Passwords are hashed and never stored in plain text.
No method of electronic transmission or storage is 100% secure. While we take reasonable precautions, we cannot guarantee absolute security.
7. Data Retention and Ownership
You retain full ownership of any scripts you upload. We do not claim any rights to your content. We retain your account information and uploaded scripts for as long as your account is active. You can delete individual scripts at any time, and they will be permanently removed within 30 days. The original file you uploaded is kept privately until your account is erased, so we can investigate and fix problems with how a script was read; ask us at any time and we will delete it sooner.
Purchase records and the usage records tied to them are kept for as long as needed for tax, accounting and payment dispute purposes, even after your account is deleted.
When you request account deletion, your account is locked and you are signed out immediately. After 30 days your personal data, scripts, and uploaded files are permanently erased, except where retention is required by law or necessary to resolve disputes. We keep anonymous usage statistics that no longer identify you so we can understand overall trends. Analytics events recorded before deletion can keep the details captured at the time until our analytics provider's retention period ends.
8. Your Rights
Depending on your jurisdiction, you may have the right to:
- Access the personal data we hold about you
- Correct inaccurate or incomplete data
- Delete your data and account
- Export your data in a portable format
- Object to certain processing of your data
- Withdraw consent to analytics at any time with the "Cookie settings" link, and unsubscribe from product emails with the link in any email
To exercise any of these rights, contact us at hello@lineecho.app. We will respond within 30 days.
9. Children's Privacy
The Service is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected data from a child under 13, please contact us immediately and we will promptly delete it.
10. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of material changes by posting the updated policy on this page and updating the "Last updated" date. Your continued use of the Service after changes are posted constitutes acceptance of the revised policy.
11. Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, contact us at hello@lineecho.app