Best for voice commands and smart homes
Google Assistant vs ChatGPT vs Perplexity: which AI assistant should you choose?
Choose Google Assistant for Google services and smart-home control, ChatGPT for flexible writing and conversation, or Perplexity for answers designed around research.
At a glance
| App | Google Play rating | 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 8, 2026. Listings change over time.
How we compared them
All three apps can answer questions and help with everyday tasks, but they serve different needs. Google Assistant focuses on voice commands, Google services, and connected devices; ChatGPT is a flexible conversational partner for writing and a broad range of topics; Perplexity centers on finding answers and insights.
This comparison weighs their stated strengths and trade-offs alongside Google Play ratings, installs, and pricing. It will help you decide which app fits your routine, while keeping in mind that all three depend on internet access for much of their functionality.
How we compared them
We compared each app’s Google Play rating, install count, price, in-app purchases, and ad status, along with its described uses and strengths and weaknesses. Store figures were read on November 8, 2026, so ratings and installs may change.
Google Play declares that ChatGPT shares device or other IDs and collects app interactions, user-generated content, crash logs, diagnostics, performance data, and several contact and message details. It says data is encrypted in transit and users can request deletion. No comparable data-safety declaration was supplied for Google Assistant or Perplexity, so we do not draw privacy comparisons from that information.
Best forvoice commands, Google services, and smart-home control
Google Assistant is the clearest choice for hands-free commands, reminders, and controlling compatible smart-home devices. Its integration with Google services and multilingual voice recognition give it a practical edge over ChatGPT and Perplexity for routine tasks tied to your devices and accounts.
The trade-off is that it is less suited to open-ended writing and research conversations than the other two. It depends heavily on an internet connection, can misinterpret commands, and some features vary by region. Google Play shows a 3.9 rating and 5,000,000,000+ installs; the app is free with no in-app purchases or ads.
What we like
- Google services integration and reminders
- Smart-home device control
- Multilingual voice commands
What to know
- Less suited to extended AI writing and research
- Internet reliance and occasional command misinterpretation
Best forwriting, adaptable conversations, and broad questions
ChatGPT is the strongest fit for drafting, rewriting, and exploring a wide range of subjects in a conversational format. Its interface and adaptable response style make it more flexible for writing and follow-up questions than Google Assistant, while offering a broader conversational focus than Perplexity.
It can still repeat itself, struggle with niche subjects, or give outdated information, and it requires internet access. Google Play shows a 4.8 rating and 1,000,000,000+ installs. It is free to download, with in-app purchases; Google Play also declares that it shares device or other IDs and collects app and user data.
What we like
- Flexible help with writing and rewriting
- Broad conversational topic coverage
- Highest Google Play rating of these three
What to know
- Can repeat itself or struggle with niche topics
- Requires internet and may give outdated information
Best forquick answers and research-oriented questions
Perplexity - Ask Anything
PerplexityAI
- Google Play
- 4.6 out of 5
- Price
- Free
- Platforms
- Android, iOS
Perplexity is geared toward getting answers and insights across many subjects, making it the most research-oriented option of the three. Its support for voice input also offers a hands-free way to ask questions, unlike ChatGPT as characterized in this comparison, while its focus is less on device control than Google Assistant.
Complex questions can still produce inaccuracies, voice recognition may be inconsistent, and full functionality requires internet access. Google Play shows a 4.6 rating and 100,000,000+ installs. The app is free to download with in-app purchases and no ads.
What we like
- Research-oriented answers across many topics
- Voice input for hands-free questions
- No ads on Google Play
What to know
- Can be inaccurate on complex topics
- Voice recognition may be inconsistent
Which one should you pick?
Frequently Asked Questions
Which app is best for writing?
ChatGPT is the strongest fit for drafting and rewriting, with a conversational style that adapts to different requests.
Which app is best for voice commands and smart-home control?
Google Assistant is the clearest choice for voice-driven reminders, Google services, and controlling smart-home devices.
Which app should I choose for research questions?
Perplexity is oriented toward answers and insights, while ChatGPT is a flexible alternative for exploring questions through conversation.
Which app has the highest Google Play rating?
ChatGPT has the highest rating among these three at 4.8, compared with Perplexity at 4.6 and Google Assistant at 3.9. Figures were read on November 8, 2026.
About this comparison
AppCompare 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 are shown for reference and can change.