Worksheet: compare perpetual content licences language across two ToS versions

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When a service you rely on updates its terms of service, you face a critical question: did the company just tighten its grip on your content, or loosen it? Perpetual content licences, the permissions companies claim over what you create, can shift dramatically between ToS versions. This worksheet helps you spot those changes, understand what they mean, and decide whether to stay or switch.

TL;DR

• Perpetual licences let companies use your content forever, even after you delete your account.
• Key red flags include expanded use (e.g., training AI, commercial reuse) and removed termination clauses.
• Use a side-by-side comparison worksheet to track licence scope, duration, and termination rights across versions.
• Terms Doctor's change-tracking feature flags suspicious edits to licence language automatically.
• Always export and archive old ToS versions; they prove what you originally agreed to.

Why perpetual content licences matter

A perpetual licence means the company you uploaded content to can claim permanent rights to that material, sometimes even after you leave. If a SaaS platform, social network, or marketplace updates its licence language to be more expansive, you could lose control over how your work is used.

Common expansions include:

• AI training access: Company trains machine-learning models on user content without compensation.
• Commercial sublicensing: Company resells or monetizes your work without revenue share.
• Derivative works: Company modifies your content for its own products.
• Indefinite retention: Company keeps your data even after account deletion.

Key takeaway: Licence changes are rarely neutral; they almost always expand company rights or shrink user protections.

How to compare two ToS versions

Step 1: Collect both versions

Start with the old ToS and the current one. If the company doesn't publish version history, use:

• Internet Archive / Wayback Machine (archive.org): Search for the domain to retrieve past snapshots.
• Terms Doctor's version tracking (if available in your subscription): Automatic snapshots when terms update.
• Company's "Previous Versions" link: Some terms pages archive old versions at the bottom.

Step 2: Find the licence clause

Search for these keywords in both documents:

• "Licence," "License," "Grant," or "Sublicence"
• "Content ownership," "Intellectual property," "Your rights"
• "Use of your data," "AI training," "Machine learning"
• "Perpetual," "Irrevocable," "Worldwide"

Copy the full licence paragraph (not just the headline) from each version into a document or spreadsheet.

Step 3: Map the key dimensions

Create a comparison table with these rows:

Dimension	Old ToS	New ToS	Change?
Scope of licence	e.g., "display & distribute"	e.g., "display, distribute, sublicense, train AI"	Expanded
Duration	e.g., "during account active"	e.g., "perpetual and irrevocable"	Expanded
Termination rights	e.g., "revoke upon deletion"	e.g., "survives deletion"	Removed
AI training / derivative works	Not mentioned	Explicitly allowed	Added
Compensation	e.g., "revenue share option"	e.g., "no compensation"	Reduced
Geographic scope	Worldwide	Worldwide	No change
Third-party access	Company use only	Company + partners	Expanded

Step 4: Highlight the red flags

Use a checklist to mark concerning shifts:

Example: real-world licence shift

Imagine Platform X updated its creator agreement in January 2025:

Old version (2023):

"You grant Platform X a worldwide, non-exclusive licence to display, distribute, and publicly perform your content during the term of your account. You may revoke this licence at any time by deleting your content."

New version (2025):

"You grant Platform X a worldwide, perpetual, irrevocable, royalty-free licence to display, distribute, sublicense, and create derivative works from your content, including for training machine-learning models. This licence survives termination and deletion of your account."

What changed:

• Duration: Limited → Perpetual
• Termination: Revocable → Irrevocable
• Scope: Display & distribute → + sublicense + AI training
• Survival: Ends at deletion → Survives deletion
• Compensation: Silent on AI use → Explicitly unpaid

Your action: If you posted high-value content (photos, writing, code), you now face permanent, unpaid AI training access. Existing content is subject to the new terms.

Legal language decoded

Here's what the scary words actually mean:

• Perpetual: Lasts forever. Even if the company shuts down, the licence doesn't end (unless sold to a competitor).
• Irrevocable: You can't take it back. You can't ask the company to stop using your content.
• Royalty-free: No payment to you. The company profits; you don't.
• Sublicense: Company can sell or hand off the licence to other companies or partners without asking you again.
• Derivative works: Company can remix, edit, or repurpose your content as its own.
• Survives termination: The licence outlives your account. Deleted content still belongs to the company.

"The process culminates in the publication of the preferred, most up-to-date set of CC licenses for use around the world."

>, License Versions

What to do after comparing

Once you've identified changes, decide based on your risk tolerance:

1. Accept: You're comfortable with the new terms and will stay.
2. Request clarification: Email the company's legal team with specific concerns (e.g., "Does 'AI training' include large language models?").
3. Migrate: Download all your content and move to a competitor with stricter user protections.
4. Delete: Remove content from the platform entirely to stop future licence claims.
5. Document: Archive the old ToS and your communications for potential legal proof later.

Using Terms Doctor to automate this

Terms Doctor's 101 consumer-protection checks include flags for:

• Perpetual, irrevocable, or sublicensing clauses
• AI training or machine-learning language
• Indefinite data retention
• Forced arbitration (which bars lawsuits)
• Auto-renewal traps

When a service updates its ToS, Terms Doctor highlights the changes in plain language, no legal background needed. Use the A-F grading to compare two versions side-by-side and export the comparison for your records.

Key takeaway: Automated red-flag detection saves hours of reading and catches buried licence expansions you'd otherwise miss.

FAQ

Get started with automated ToS tracking

Reading and comparing terms of service by hand is time-consuming and error-prone. The free Terms Doctor browser extension (available for Chrome, Edge, Brave, Opera, and Vivaldi) discovers ToS on any website, grades them A-F based on consumer-protection criteria, and highlights risky clauses in seconds. When a service updates its terms, Terms Doctor flags the change automatically, no manual checking needed.

Use this worksheet alongside Terms Doctor to build a repeatable, low-effort workflow for staying on top of licence changes. Your content is valuable; your terms deserve the same attention you'd give a real contract.

Note: This worksheet and Terms Doctor's checks are tools to help you understand terms, not legal advice. For disputes, consult a lawyer licensed in your jurisdiction.

Additional Resources

• License Versions - This page identifies the principal improvements to the Creative Commons license suite since the publication of the first licenses (version ...
• Perpetual License vs Subscription License - Compare perpetual and subscription software licenses. Learn the pros and cons to choose the best model for your business with insights from ...
• Find and compare software licenses | Interoperable Europe ... - A unique tool allowing everyone to compare and select open licences based on their content. Also available: Licensing Assistant eLearning course.