ChatGPT (Galaxy)
“ChatGPT on Galaxy” — the big sibling, with an ads label
What is ChatGPT (Galaxy)?
The ChatGPT Galaxy app packs photo and voice questions into one app and is the most widely installed AI app here, though its Play Store listing carries a “Contains ads” label.
- 1The Play Store badge reads ‘Contains ads · In-app purchases’
- 2Installed over 1 billion times, it’s the app people around you most likely already have
- 3In-app purchases start at KRW 13,000 (≈ US$10) per item
What sets it apart
These are the differences we found by running the same material through several tools in our training sessions.
The one most people around you use
It has over 1 billion installs on the Play Store, with a 4.8 rating across 61.1 million reviews. When you run in-house training, it is the app most people already have on their phones, and not having to start with installation is a big practical advantage.
It’s built around taking photos and talking
The official description highlights asking questions about a photo you take or upload, and an advanced voice mode you start by tapping the sound-wave icon to talk on the go. Asking about whatever is right in front of you is the most natural fit for work in the field.
You can still use it if you decline permissions
The Play Store permissions notice lists microphone, notifications, camera, and photos and videos all as optional, and states that the app works even if you don’t grant them. On a phone that handles company materials, you can allow only the camera and keep everything else off.
⚖️ The weaknesses are clear, too
The developer line shows “Contains ads” and “In-app purchases” side by side. The other two apps in the same spot carry neither label. The Data safety section also lists device or other IDs as data that may be shared with third parties, so if you plan to use it for work, review the settings first.
💡 In plain EnglishIt is the biggest store in the neighborhood, so everyone has been inside at least once. It stocks plenty of goods, and it is also the only store with a flyer posted by the entrance.
Ask a training room who already has it installed, and more hands go up for this app than any other. For training managers, learning more features matters less than knowing what to check on an app that’s already installed, such as the ads label and the training-use setting.
Same job, different approach
At home after work, with a presentation due tomorrow morning
The old way
- Turn the laptop back on and sit down
- Staring at a blank screen, unable to write the first sentence
- Rush a rough finish after midnight
- Revise it again the next morning
With ChatGPT (Galaxy)
- Pick up your phone on the sofa and talk your thoughts through
- Have it split the presentation into three parts
- Get five likely questions
- Fill in the slides on your laptop in the morning
Common uses
Preparing a presentation after work
From the sofa, talk your thoughts out loud and get the flow and likely questions back. The next morning, all that is left is filling in the slides.
Ask with a photo, right on site
Snap a label, sign, or handwritten document and ask what it means. Always double-check the result against the original and with the person in charge.
Foreign languages on business trips
Photograph signs or menus to translate them, and practice short conversations in voice mode. For anything important, such as contract wording, don’t rely on the translation alone.
Who it’s for
Best for
- ✓Anyone who already has it on their phone and wants to start right away
- ✓You often ask questions with photos in the field
- ✓Training managers who want to skip the installation step in in-house training
Better served by other tools
- –People who don’t want ads mixed in
- –Anyone who dislikes having several payment paths
- –Anyone whose main task is editing long documents on a phone
Can we use it at work?
The questions that adoption leads and security teams ask first.
Note: The store badge alone doesn’t show which plans or screens the ads label applies to. OpenAI’s official page also would not open during this check, so default training-use settings by plan could not be verified. Check directly in the app and in the official terms.
10-minute quick start
- 1
Install the app from the Play Store. First, note the “Contains ads” and “In-app purchases” labels on the listing.
- 2
After you log in, find the setting that allows your conversations to be used for training and turn it off. If you’ll use it for work, do this on day one.
- 3
Try declining permission requests at first. Allow only what you truly need, such as the camera, at the moment you need it.
- 4
Take one photo and ask about it, then tap the voice button once. Those two features are what make it worth using on a phone.
Copy-and-paste prompts
Replace only the [bracketed] parts, then paste it in.
Break what I’m about to say into a three-part presentation flow. Then list five likely questions. [Keep explaining aloud]
Tell me what the marking in this photo means and what I should check. If you are not sure, write “needs verification.”
From this whiteboard photo, pull out only the items that show an owner and a deadline. Leave the others blank and flag them.
Reply briefly to the message below. Be polite, in three sentences or fewer. [Paste message]
Listen to what happened today and boil it down to three things to do tomorrow. Answer briefly, out loud.
Using it with other tools
Linking two or three tools changes your work more than any single tool does.
Site photos → inspection report
Commute thoughts → morning presentation
Before you start
- Google’s official guidance says that deleting an app does not cancel a recurring subscription. Turn off the subscription yourself on the payment screen.
- On day one, check in Settings whether your conversations can be used for training. If so, turn that off first.
- On Galaxy, a permission stays granted once you allow it. Review the Permission manager in Settings once a month.
- In-app purchases range from ₩13,000 to ₩159,000 per item. Don’t tap in a hurry on a small screen.
Pricing
For individual use
Free to install from the Play Store. The developer line also carries a “Contains ads” label
Range shown on the Play Store product page
In-app purchase prices shown on the Korean App Store on the same day. Account plans are the same on any device
In-app purchase price shown on the Korean App Store the same day
In-app purchase price shown on the Korean App Store the same day
Checked on 2026-09-21 · In-app purchase price range from the Korean Play Store product page, and the in-app purchase prices listed on the Korean App Store the same day. OpenAI’s official pricing page would not open during this check. Account plans are the same as on desktop and web, so a plan bought on any device applies to the same account, and paying in the app creates a Google Play subscription. Prices change without notice — check the official page before you pay. ChatGPT Play Store page ↗ · ChatGPT Korean App Store page ↗ · ChatGPT official pricing ↗ · Manage Google Play subscriptions ↗
Drawbacks of ChatGPT (Galaxy)
We don’t just list the positives. Here is what fell short when we used it.
- Long answers are hard to read
Long answers mixing tables and lists force constant scrolling on a small screen, which makes it hard to compare one part with another. You end up reopening important work on a PC.
- Handling files feels clunky
Finding a downloaded document on your phone and uploading it takes several extra steps, and filing the results in a company folder is just as tedious. Document work is easier on a PC.
- Drains battery and uses data
If you keep using voice chat or image generation, the device warms up and the battery drains noticeably. If you are often out of the office, you will want to carry a power bank.
Tools to compare
FAQ
Last updated 22 Sep 2026 · The ratings on this page come from John Kim, CEO of Nanum Consulting, who has used these tools firsthand in training and real work.
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