Used and loved by millions
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
check in on
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'check in on' is correct and usable in written English.
You can use it to refer to visiting a person or place to check in (on their wellbeing, to see how something is going, etc.). For example, "I'm planning to check in on my grandmother later this week to make sure she is doing well."
✓ Grammatically correct
News & Media
Academia
Wiki
Alternative expressions(7)
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
58 human-written examples
The giraffes still like to check in on guests.
News & Media
I watched neighbors check in on one another.
News & Media
Check in on some numbers.
News & Media
I never check in on Facebook.
News & Media
I'll check in on you".
News & Media
It's interesting to check in on them".
News & Media
Call office, to check in on project.
News & Media
They check in on her regularly.
News & Media
Who can check in on you regularly?
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
ISOP participants will check-in on Thursday, August 22.
Academia
And I don't check-in on Foursquare with it.
News & Media
Expert writing Tips
Best practice
Use "check in on" to express a caring or supervisory action, ensuring someone's well-being or the status of something. It is suitable in both formal and informal contexts, like "check in on" a friend or a project.
Common error
Be careful not to confuse "check in on" with "check into". "Check in on" implies looking after something or someone, while "check into" refers to registering at a location, like a hotel.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrasal verb "check in on" functions primarily as an action verb, indicating an act of monitoring or inquiring about the well-being or status of someone or something. Ludwig AI confirms that it is usable in written English.
Frequent in
News & Media
66%
Academia
18%
Wiki
10%
Less common in
Formal & Business
3%
Science
1%
Encyclopedias
1%
Ludwig's WRAP-UP
In summary, the phrasal verb "check in on" is a versatile and common expression used to describe the act of monitoring or inquiring about someone's or something's well-being or status. As Ludwig AI confirms, it's grammatically correct and suitable for various contexts, though primarily found in News & Media. Be mindful not to confuse it with "check into", which refers to registering at a location. Consider alternatives like "look in on" or "see how someone is doing" for nuanced meanings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
see how someone is doing
More explicitly asks about someone's well-being or progress.
look in on
Implies a brief, often visual, inspection or visit.
make sure someone is okay
Highlights a concern for someone's safety or health.
keep tabs on
Suggests a more discreet or even secretive form of observation compared to "check in on".
touch base with
Focuses on making contact for a brief update or connection.
monitor
Focuses on observing progress or condition; lacks the personal interaction implied by "check in on".
follow up with
Emphasizes subsequent action or communication, not just a simple check.
keep an eye on
Suggests a watchful approach, often used for security or protection.
pay a visit to
Emphasizes the act of visiting someone, usually in person.
enquire about
More formal; implies asking for information about someone or something.
FAQs
What does "check in on" mean?
The phrase "check in on" means to make contact with someone or something to see how they are doing or to inspect their condition. It often implies a brief visit or communication.
How can I use "check in on" in a sentence?
You can use "check in on" in a sentence like this: "I need to "look in on" my neighbor to make sure she's doing okay after the storm."
What are some alternatives to "check in on"?
Some alternatives to "check in on" include "see how someone is doing", "look in on", "monitor", and "keep tabs on" depending on the specific context.
Is it correct to say "check in at" instead of "check in on"?
No, "check in at" is used for registering at a place like a hotel or airport. "Check in on" means to see how someone or something is doing.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested