ChatGPT alternative for iPhone: Nia or ChatGPT? Which one does more for you on iPhone
ChatGPT is among the best there is for talking. Nia is built so that what you say ends up done on your iPhone. They do not compete on everything, and this is where each one wins.
Nia is an AI voice assistant for iPhone that turns a sentence into actions in the system's apps: events, reminders, alarms and images in Photos. ChatGPT, from OpenAI, is an AI chat with a voice mode for writing, learning and thinking. Nia does not use ChatGPT: it runs on Google's Gemini models.
Compared in October 2026, with that month's ChatGPT app for iPhone.
ChatGPT and Nia, row by row
The mark shows which one wins each row. Where there is no mark, it depends on what you are after.
| ChatGPT | Nia | |
|---|---|---|
| Talking, writing and explaining | Wins this row: Its strong point, in voice mode too | Yes, though it is not its specialty |
| Calling it by voice | Lock Screen widget, Action button or Siri, with the ChatGPT extension | Its control in Control Centre, on the Lock Screen or on the Action button, Siri, or "Hey Nia" with the app open, on Plus and Pro |
| An event in the iPhone Calendar | No: the app does not write to Calendar | Wins this row: Yes, in the default calendar, with an alert and a place, in one sentence |
| Reminders and alarms | Scheduled tasks inside ChatGPT | Wins this row: In the Reminders app; system alarms from iOS 26 |
| WhatsApp and messages | It writes the text for you to copy | Wins this row: It leaves it written and open in the conversation, and you send it |
| The iPhone's Maps and Home | It does not touch them | Wins this row: Yes: places and routes in Maps, and Home on Plus |
| Apple Music | It searches songs and builds playlists with its Apple Music app | It plays the song you ask for, in Apple Music or Spotify |
| Memory | Memories you can see and delete | On Plus (30 days) and Pro, on a screen where you search it, add to it or delete it |
| Images | It creates them and you tweak them in the chat | It creates them and they save themselves to Photos |
| Files, data and long analysis | Wins this row: Very complete | It searches Google and, on Plus, answers about your PDFs |
| Languages | Wins this row: Dozens | 19, with native voices |
| Where it works | Wins this row: iPhone, Android, web, Mac and Windows | iPhone only, with iOS 18 or later |
| What happens to your data | May be used to improve its models unless you turn it off | Wins this row: Not used to train models, neither Nia's nor Google's |
| Price | Free with limits; paid: Go, Plus and Pro | Free, 5 commands a day; Plus $19.99 and Pro $39.99 a month |
What ChatGPT does better
The long conversation
For thinking out loud, writing something long, studying or going over a subject, it is among the best there is.
Files and analysis
It reads documents, spreadsheets and data, and runs long analyses with web search.
Everywhere
The same conversation on iPhone, on Android, on the web, on Mac and on Windows.
Inside Siri
On an iPhone with Apple Intelligence, Siri can hand ChatGPT whatever it cannot answer, without opening the app.
What Nia does better
It ends up in your apps
The event lands in your Calendar, the reminder with its alarm and the image in Photos. Nothing to copy or paste.
Several things in one sentence
"Dinner on Thursday at 9, remind me an hour before and text Luis" is three actions and a single command.
Memory in plain sight
It remembers what you tell it, 30 days on Plus and with no limit on Pro, and all of it sits on a screen where you search it, add to it or delete it.
Your data does not train anything
Neither Nia's models nor Google's learn from what you say, and you do not have to hunt for the setting.
Using both
You do not have to pick one. Plenty of people keep ChatGPT for long conversations and use Nia for whatever has to end up done on the iPhone. And on an iPhone with Apple Intelligence, Siri can pass ChatGPT whatever it cannot answer.
About Nia and ChatGPT
Does Nia use ChatGPT?
No. Nia runs on Google's Gemini models, on its own server. It does not use ChatGPT or any OpenAI model.
Can ChatGPT create events or reminders on my iPhone?
The ChatGPT app does not write to the iPhone's Calendar or Reminders. Its scheduled tasks live inside ChatGPT: it answers with a message of its own, not with a system reminder. Nia writes to both, in one sentence.
Which one is cheaper?
Both have a free plan. Nia's free plan comes with 5 commands a day and 3 images in total; Plus costs $19.99 a month and Pro $39.99. ChatGPT has Go, Plus and Pro, with prices that change from country to country: they are on its official page.
Can I use ChatGPT and Nia at the same time?
Yes, and it makes sense: ChatGPT for talking and writing, Nia for what you say to end up done on the iPhone. They do not get in each other's way.
Which one takes more care of my data?
With ChatGPT, your conversations may be used to improve its models unless you turn that off in its settings. With Nia they are not used to train models, neither Nia's nor Google's, and dictation stays on the iPhone when your language can be recognized offline. The details are in what happens to your data.
Sources
Checked on October 10, 2026. OpenAI's pages could not be opened from here: what is said about them was checked against secondary sources.
- Tom's Guide: Forget Siri: here's how to put ChatGPT Voice on your iPhone lock screen (6 Sept 2024)
- Apple: ChatGPT Extension & Privacy
- Engadget: ChatGPT Now Has A Hub For Scheduled Tasks (17 June 2026)
- 9to5Mac: Apple Music app now available on ChatGPT, here’s how to use it (17 Dec 2025)
- OpenAI Help Center: Data Controls FAQ
- OpenAI: ChatGPT pricing
ChatGPT is a trademark of OpenAI. Nia is not affiliated with OpenAI.
Shall we begin?
Download Nia, tell it the first thing and see what happens. The free plan asks for no card.
Free to start. Requires iOS 18. In 19 languages.
Last reviewed