Best for smart-home voice control
Google Assistant vs ChatGPT vs Perplexity: which AI assistant should you choose?
Choose Google Assistant for voice controls and smart-home routines, ChatGPT for writing and creative tasks, or Perplexity for answers designed around search.
At a glance
| App | Google Play | Price | In-app purchases | Platforms | Age rating |
|---|---|---|---|---|---|
| Google AssistantGoogle LLC | 3.9 out of 51,346,810 ratings | Free | No | Android, iOS | Everyone |
 ChatGPTOpenAI | 4.8 out of 566,117,409 ratings | Free | Yes ($8.00 - $500.00 per item) | Android, iOS | Teen |
 Perplexity - Ask AnythingPerplexityAI | 4.6 out of 52,094,615 ratings | Free | Yes ($4.99 - $1,999.99 per item) | Android, iOS | Teen |
Ratings, prices and age ratings come from the Google Play listings, read on Nov 7, 2026. Listings change over time.
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How we compared them
Google Assistant, ChatGPT, and Perplexity can all help you get things done by asking questions or giving instructions. Their strengths differ: Google Assistant focuses on voice commands and smart devices, while ChatGPT supports writing and image generation, and Perplexity emphasizes answering questions.
This comparison covers their Google Play ratings, reach, pricing, features, and trade-offs so you can decide which one fits your everyday tasks.
How we compared them
We compared the Google Play figures read on November 7, 2026: ratings, install counts, prices, ads, and in-app purchases. These are store figures, not results from hands-on testing.
We also considered each app’s stated purpose and strengths and limitations. Google Play’s data-safety declaration was available for ChatGPT: it says the app shares device or other IDs, collects several types of account and usage data, encrypts data in transit, and lets users request deletion.
Google Assistant
Google LLC
3.9 out of 5 on Google Play
Best forhands-free commands and smart-home routines
- Price
- Free
- Ratings
- 1,346,810
- Platforms
- Android, iOS
- Age rating
- Everyone
Google Assistant is the clearest fit for controlling compatible smart devices and handling everyday tasks by voice. Its voice recognition, language support, and customizable routines give it a practical edge over ChatGPT and Perplexity for recurring commands.
The trade-off is that it depends on a stable internet connection, and some features are limited to particular devices. It may also misunderstand complex requests, while its Google Play rating of 3.9 is lower than ChatGPT’s and Perplexity’s.
What we like
Voice controls and smart-home integrationCustomizable routines for repeated tasksSupports multiple languages
What to know
Some features depend on the deviceCan misunderstand complex queries
ChatGPT
OpenAI
4.8 out of 5 on Google Play
Best forwriting, creative work, and broad AI assistance
- Price
- Free
- Ratings
- 66,117,409
- Platforms
- Android, iOS
- Age rating
- Teen
ChatGPT has the strongest Google Play rating of the three at 4.8 and supports writing, search, and image generation. Its conversational interface and ability to respond to many kinds of prompts make it more versatile for drafting and exploring ideas than Google Assistant or Perplexity.
Its responses can be inaccurate, and it requires an internet connection. The app also has in-app purchases and ads; its Google Play data-safety declaration says it shares device or other IDs and collects usage, account, and diagnostic information.
What we like
Writing and image-generation capabilitiesHighest Google Play rating of the threeUseful for varied conversational prompts
What to know
Responses may occasionally be inaccurateAds, in-app purchases, and declared data collection
Perplexity - Ask Anything
PerplexityAI
4.6 out of 5 on Google Play
Best forquestion-led research and quick answers
- Price
- Free
- Ratings
- 2,094,615
- Platforms
- Android, iOS
- Age rating
- Teen
Perplexity is geared toward getting answers to questions and exploring topics, making it a natural choice for search-oriented research. It supports voice input and has a 4.6 Google Play rating, ahead of Google Assistant’s 3.9.
It has fewer smart-home and routine features than Google Assistant, and it is less focused on creative tools such as image generation than ChatGPT. Its offline functionality is limited, and in-app purchases range from $4.99 to $1,999.99 per item.
What we like
Focused on answering questionsVoice input for hands-free queriesNo ads
What to know
Limited offline functionalityFewer smart-home and third-party integrations
Which one should you pick?
Best for writing and creative tasks
ChatGPT
Best for search-style answers
Perplexity - Ask Anything
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Frequently Asked Questions
Which app is best for controlling smart-home devices?
Google Assistant is the strongest fit of these three for voice controls, compatible smart devices, and customizable routines.
Which app has the highest Google Play rating?
ChatGPT, with a Google Play rating of 4.8 from 66,117,409 ratings.
Which app is most suited to research questions?
Perplexity is built around getting answers and exploring topics, so it is the most search-oriented choice.
Do these apps require an internet connection?
All three depend on internet access for their core assistance. Perplexity also has limited offline functionality.
Appgk compares apps independently. We don't make, own or distribute any of these apps and have no affiliation with their developers, Google or Apple. Names, icons and trademarks belong to their owners; store details and prices are shown for reference and can change.