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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is free until
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is free until" is correct and usable in written English.
It can be used to indicate that something is available at no cost for a specified period of time. Example: "The trial version of the software is free until the end of the month."
✓ Grammatically correct
News & Media
Formal & Business
Science
Alternative expressions(20)
will remain in effect until
has been obscured until
good through
has been prolonged until
applied until
effective until
expires on
is available until
has been forbidden until
has been closed until
has been used until
is open until
is appropriate until
has been delayed until
is in force until
has been bailed until
lasts until
is innocent until
is funny until
is true until
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
56 human-written examples
The song is free until tomorrow.
News & Media
Admission is free until noon on Saturdays.
News & Media
Free, and admission to the grounds is free until noon.
News & Media
Admission to the grounds is free until noon.
News & Media
Admission is free until 22 May (€12 thereafter).
News & Media
No woman is free until we are all free.
News & Media
No one is free until all are free from domestic violence.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
"I'm free until later this afternoon".
News & Media
The trains were free until midnight.
News & Media
Broken parking meters should be free until mended.
News & Media
Mr. Ramrattan, meanwhile, was free until an informant came forward in late 2010 and exposed his plot.
News & Media
Expert writing Tips
Best practice
When using "is free until", clearly specify the exact date and time when the offer ends to avoid ambiguity. For example, "The software is free until January 1, 2026, at 12:00 AM PST."
Common error
Avoid using vague timeframes like "end of the week" or "soon" when specifying the duration of the free offer. Always provide a precise date to prevent confusion and potential customer dissatisfaction.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is free until" functions as a prepositional phrase indicating a time-bound condition of availability without cost. It specifies when something transitions from being free to potentially incurring a charge or becoming unavailable. Ludwig AI validates its grammatical correctness.
Frequent in
News & Media
45%
Formal & Business
25%
Science
15%
Less common in
Reference
5%
Encyclopedias
5%
Wiki
5%
Ludwig's WRAP-UP
The phrase "is free until" is a common and grammatically sound construction used to denote a limited-time offer or promotional period where something is available without charge. Ludwig confirms its correctness and widespread usage across various contexts. Primarily found in News & Media, Formal & Business, and Science sources, it serves to inform and incentivize action. For clarity, specify exact dates and times when using this phrase, and consider alternatives like "available at no cost until" for variety. Avoiding vague timeframes ensures effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
available for free until
Similar to "accessible for free", focusing on the availability without payment.
available at no cost until
Replaces "is free" with "available at no cost", emphasizing the absence of payment.
complimentary until
Uses "complimentary" as a synonym for free, suggesting it is offered as a courtesy.
provided at no cost until
Uses a more detailed explanation of the cost-free aspect.
offered without charge until
Uses "offered without charge" to specify the service being provided at no cost.
accessible for free until
Focuses on accessibility and the lack of cost for accessing something.
without payment until
Highlights that no payment is required during the specified period.
no charge applies until
Emphasizes the lack of charges before a specific date.
provided gratis until
Replaces "is free" with the more formal "provided gratis", indicating free provision.
given away for free until
Emphasizes the act of giving something away without cost during the specified time.
FAQs
How can I use "is free until" in a sentence?
You can use "is free until" to indicate that something is available at no cost for a limited time. For example, "The online course is free until August 15th".
What are some alternatives to "is free until"?
Alternatives include "available at no cost until", "complimentary until", or "offered without charge until".
Is it necessary to specify the time when using "is free until"?
Specifying the time can help avoid confusion. If the offer ends at a particular time on a certain date, it's best to state it explicitly. For example, "The service is free until July 25th at 5 PM EST".
What should I do if I want to extend the period during which something "is free until"?
If you decide to extend the offer, clearly communicate the new end date to your audience. You can say, "We're extending the free period! The service is now free until [new date]".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested