ChatGPT on a phone is more than a smaller version of the website. The official iPhone and Android apps support regular text chats, voice conversations, photos, files, web search, image creation, and Projects, although the exact tools you see depend on your plan, region, workspace rules, app version, and OpenAI’s rollout schedule. This guide explains the documented mobile features without assuming that every account has the same screen.
Install the official ChatGPT app
On iPhone, use the App Store listing linked by OpenAI. On Android, use OpenAI’s Google Play listing. Check that the publisher is OpenAI before installing. That simple check helps you avoid lookalike apps that may use similar names or icons.
OpenAI says the Android app requires a device with Google Play running Android 7.0 or later. Availability also depends on whether ChatGPT is supported in your country. After installation, sign in with the same OpenAI account you use elsewhere. Using the same account keeps eligible subscriptions and chat history connected across devices. If a paid feature appears missing, confirm the account email and workspace before buying again. An App Store purchase can be restored in the iOS app, while a subscription bought on the web is managed at chatgpt.com.
App controls move as the product changes. In general, use the sidebar for recent chats, account settings, and Projects. Use the message composer for typing and for whatever attachment or tool button your account currently shows. Labels and placement can differ between iOS and Android, so rely on the feature name rather than an old screenshot.
Write mobile prompts that are easy to review
A useful phone prompt can be short, but it should still name the task, include necessary context, and specify the output. Instead of typing “help with dinner,” try: “Suggest three vegetarian dinners for two people using lentils, tomatoes, and rice. Keep active cooking under 25 minutes and give me one shopping list.” The second version gives ChatGPT boundaries it can follow.
For work, paste only information you are allowed to share. A practical pattern is: “Summarize the text below for a project update. Keep it under 120 words, separate decisions from open questions, and do not add facts.” You can then ask for one revision at a time, such as a shorter version or a checklist. Review names, dates, calculations, quotations, and links before using the answer.
Mobile dictation is useful when typing is awkward. Dictation turns one recording into editable text before you send it. Voice, by contrast, is a live conversation. Check the transcript before sending a dictated prompt, especially around names, numbers, or technical terms.
Talk with ChatGPT using Voice
To start, select the Voice control in the message bar and allow microphone access when your phone asks. OpenAI’s current ChatGPT Voice guide describes Live, Advanced, and Standard experiences. You may not see all three. Availability can change with your plan, workspace, region, and app version.
Live is designed for back-and-forth speech and can work with text and images in the same chat when those features are available. Standard transcribes speech before producing a reply. Eligible mobile subscribers may still use Advanced for supported video or screen sharing. Do not assume video or screen sharing is included with every voice option or account.
Use Voice for brainstorming, language practice, or talking through an outline. Ask ChatGPT to slow down, wait while you think, or summarize the discussion at the end. Noise, overlapping speech, network quality, and microphone settings can affect recognition. The final transcript may not be a word-for-word record, so verify anything important.
Voice privacy depends on the mode and your choices. OpenAI says audio and video clips associated with Live and Advanced are retained with the chat transcript for 30 days. Standard audio is deleted after transcription unless you chose to share recordings for model improvement. Transcripts and other chat content are governed by your plan and Data Controls. Review the current Voice documentation before discussing confidential material.
Add photos, images, and files
When an attachment control is available, you can choose a photo, take a new one, or select a supported file. Your phone may request access to the camera, photo library, or files. Grant only the access needed for the task. On systems that offer limited photo access, selecting specific images is safer than exposing the full library.
For image analysis, explain what you want inspected: “Read the error message in this screenshot and list likely causes,” or “Describe the chart, then tell me which labels are too small to read.” Crop out unrelated notifications, faces, addresses, account numbers, and location details before uploading. ChatGPT can misread small text and fine visual detail, so compare the answer with the original image.
ChatGPT can also create and edit images on iOS and Android. OpenAI’s Images in ChatGPT guide says you can describe a new image, upload an existing image for changes, and use the mobile selection tool for a specific area. Selection is not always precise, and an edit may extend beyond the highlighted region.
File uploads can help summarize a document, compare text, extract sections, or analyze a spreadsheet. Support and limits vary. OpenAI’s File Uploads FAQ notes that many plans use text-based retrieval for documents, which means embedded images in a PDF may be discarded. Do not assume that uploading a scanned or design-heavy PDF gives ChatGPT access to every visual element.
Search the web and decide whether to share location
ChatGPT can search automatically when a question needs current information, or you can choose Search from the tools available in the composer. Search answers may include inline citations or a Sources panel. Open the cited pages and check their dates before relying on medical, legal, financial, travel, or breaking-news information.
OpenAI’s ChatGPT Search documentation says search is available in the mobile apps and may use general location inferred from your IP address. Optional device location sharing is off by default. If you enable it, ChatGPT can use precise location for nearby results. On mobile, you can separately turn off precise location while retaining approximate device location.
Precise location is not required for search. You can instead type a city or neighborhood into the prompt. OpenAI says precise location data is deleted after it is used for a response, but location-related results and maps can remain in chat history. Check both ChatGPT’s Data Controls and your phone’s app permissions if you change your mind.
Keep ongoing work in Projects
Projects group related chats, files, and project instructions. OpenAI says Projects are available to free and paid subscription types, require a signed-in account, and let you start on a phone and continue on the web. Use one for a course, trip, research topic, or recurring report rather than rebuilding context in unrelated chats.
Start from the Projects area shown in your sidebar, create a project, then add only the references that belong there. Project instructions apply inside that project and override global custom instructions. Tool availability still depends on your account and workspace. Our separate ChatGPT Projects guide covers files, sharing, and project memory in more detail.
Review Data Controls, Temporary Chat, and memory
These controls solve different problems. In Data Controls, turning off “Improve the model for everyone” stops new conversations from being used to improve ChatGPT, while those chats can still appear in history. OpenAI says this account setting syncs between web and mobile. The current mobile route starts from the sidebar and profile area, but labels can change, so look for Data Controls rather than relying on a fixed icon position.
Temporary Chat does not appear in history, does not create or use personalization memories, and is not used to train models. OpenAI may keep a copy for up to 30 days for safety. Temporary Chat can still follow enabled custom instructions. If a custom GPT sends information to a third party through an action, that recipient’s privacy policy applies.
Memory is separate from training. When enabled, it can use relevant context from chats, files, and connected apps to personalize responses. Memory controls are under Personalization, but the exact memory experience can vary during rollout. Deleting a chat does not necessarily delete a saved memory created from it, and deleting a saved memory does not remove its old mentions from chat history. See our ChatGPT Memory and controls guide for a fuller deletion checklist.
A sensible mobile permissions checklist
- Allow microphone access only if you use Voice or dictation.
- Use camera or photo access only when attaching an image, and prefer selected-photo access when your phone offers it.
- Keep device location off unless a local search genuinely needs it. Typing a general location often works.
- Revoke permissions later in iOS or Android settings if the task is finished.
- Remove private details from screenshots and documents before upload.
- Use Temporary Chat for a conversation you do not want in history or memory, while remembering its safety-retention and third-party limits.
Troubleshoot missing tools or failed uploads
First update ChatGPT from the App Store or Google Play, then reopen it and confirm that you are signed into the intended account and workspace. A feature may be unavailable because of a plan limit, regional rollout, workspace policy, or temporary service incident. Check OpenAI Status before repeatedly reinstalling.
If Voice cannot hear you, confirm microphone permission, disconnect an unwanted Bluetooth device, reduce background noise, and try a stable network. If a photo or file will not attach, check the relevant phone permission, file type, size, account storage, and current upload allowance. Failed upload attempts can count toward a rate cap. On Android, OpenAI also recommends updating Google Play Store and using Chrome as the default browser for certain login problems.
If history or a paid plan looks wrong, sign out and return with the original sign-in method and account. Do not delete the account as a troubleshooting shortcut because account deletion is permanent. For a persistent problem, contact OpenAI Support with the approximate time, time zone, app version, phone platform, screenshot, and any request ID, but never include your password.
Frequently asked questions
Is the ChatGPT app the same on iPhone and Android?
The main chat features overlap, but OpenAI does not promise identical controls or simultaneous rollouts. Your plan, region, workspace settings, operating system, and app version can change what appears.
Can I use ChatGPT on mobile for free?
Yes. OpenAI documents text chat, web search, file and image uploads, image creation, and other tools for Free users, with limits that can be stricter than paid plans. ChatGPT shows an in-product notice when a current limit is reached.
Does Temporary Chat make an upload completely private?
No. It keeps the chat out of history and memory and excludes it from model training, but OpenAI may retain a copy for up to 30 days for safety. Data sent through a GPT action can also be handled under a third party’s policy.
Why is a tool shown in an OpenAI help article but missing from my phone?
Features can depend on the app version, account, plan, country, workspace policy, and rollout stage. Update the app, verify the account and workspace, check the relevant official help page, and review OpenAI Status for an incident.