Grok vs ChatGPT vs Gemini vs Copilot vs Perplexity: Which is the best AI app for Android? 

Android Guides » Android Apps » Grok vs ChatGPT vs Gemini vs Copilot vs Perplexity: Which is the best AI app for Android? 

Choosing an AI app on Android can be a bit overwhelming: there are chatbots, AI search engines, study assistants , photo and video editors, voice generators, and productivity tools. Here, we've gathered all the top-ranked apps so you can compare features, limitations of free versions, prices, and strengths/weaknesses at a glance.

The approach is practical: from ChatGPT, Gemini, and Copilot to alternatives like DeepSeek, Perplexity, and Grok, including creative apps (Lensa, WOMBO Dream, PowerDirector, PhotoDirector) and educational options (Socratic, Photomath, ELSA). We also include how they perform in real-world tests, which models they use in their free and paid plans , and what the mobile's native AI brings to the table.

How to choose the best AI for Android based on your usage

Before installing anything, think about what you need: conversation, search with sources, image creation, video/photo editing, voice, emotional support, or study ? There's no single winner; the sensible thing to do is combine two or three complementary apps.

Another key factor: the free versions. Almost all offer a free plan with limits (monthly, daily, or for advanced features). If you like it, consider upgrading to the Pro plan: it usually unlocks more powerful models, faster speeds, or higher usage quotas.

The best AI apps for Android: a practical comparison

We have gathered into a single block those that are most frequently repeated in the reference guides , with functions, limits and prices as they appear in the analyzed sources.

ChatGPT (OpenAI)

The classic conversational chatbot that can be used for writing, summarizing, scheduling, translating, and generating ideas . The official Android app is clean, with history and voice capabilities.

Free: access to GPT-4o mini. Plus ($20/month) : faster responses, priority access, and access to advanced models (full GPT-4o, GPT-4.5 where applicable) and extra features; free image creation is very limited (2/day). Higher tiers like Pro expand limits and advertise capabilities such as Sora for video.

Google Gemini

Google Assistant with integrated search, multimodal understanding, and connectivity with Gmail, Drive, and Maps . It also generates images and, experimentally, video.

Free: Use Gemini 2.0 Flash (limited) and 2.0 Pro experimentally. Paid : Full Gemini 2.0 Flash and deeper integration with Google services for everyday use.

Microsoft Copilot

A hybrid between a chatbot and a search engine with web access, image creation via DALL-E, and synergies with Word, Excel, and PowerPoint . Ideal for work and educational environments.

Free: Prometheus base (derived from GPT-4) and off-peak access to GPT-4/4o, 15 image boosts. Paid : priority, more capacity, and 100 image boosts.

DeepSeek

A very capable alternative with a focus on reasoning. It offers a lot in its free plan and can be run on a computer to preserve privacy.

Models: DeepSeek-V3 (general) and DeepSeek-R1 (reasoning) are available in free and paid versions. Difference : The paid version allows for longer conversations. It does not generate images.

Perplexity AI

An "answer engine" that combines chat and search with verifiable quotes and sources . Perfect for students, journalists, and researchers.

Free: General use and limited copilot (5 searches/4 h). Pro : $20/month or $200/year with a 7-day trial, more comprehensive answers, and greater copilot functionality.

Grok (xAI)

xAI chatbot integrated with X (Twitter), more casual tone, capable of generating images and performing "DeepSearch" with content from the social network itself.

Free: Grok-3 with strict limits (10 requests/2 h). Paid : more capacity and fewer restrictions on usage and image.

Poe

This aggregator allows you to communicate with GPT-4, Claude, LLaMA, and other third-party models, useful for comparing styles and responses . The free version is generous for daily use.

Replica

A conversational companion with an emotional focus. It allows you to create an avatar with personality and have empathetic conversations, AR, and video calls.

Free: "Friend" mode. Pro : Changes relationship type (romantic, mentor, etc.), more features and customization. Prices: $14,99/month or $49,99/year.

Claude (Anthropic)

A very natural language model, appreciated for its writing quality and confidence . Suitable for long texts, reviewing and analyzing documents and images.

Free: Access to Claude 3.7 Sonnet with limited daily usage on demand. Paid : More capacity and other models (e.g., Claude 3.5 Haiku). Does not create images or browse the internet in the mode described.

UPDF AI

AI-powered PDF editor for Android: read, edit, annotate, translate, and summarize files ; file manager and built-in tricks. One account for multiple devices.

Free trial with watermark and storage limits (1 GB and 10 MB/file). Plans : annual €35,99 (110 GB/year) or perpetual €59,99 (102 GB). Same functionality in both.

Lens AI

Photo editor with "Magic Avatars", face retouching, backgrounds, and creative effects . Popular on social media for its avatars.

7-day trial. Payments : $3,99 for 50 avatars or $35,99 annual subscription with unlimited avatars.

wombo dream

Image generator from text with versatile artistic styles (Ghibli, mystical, psychic, etc.) and prompt suggestions.

Free with basic features. Premium : $9,99/month, $89,99/year, or $99,99 for life for video of your work, extra styles, and advanced saving.

Socratic AI (Google)

Assistant for high school/college students: explains concepts with visualizations and scans tasks with the camera.

Free and paid versions starting at $10/month; the sources analyzed don't show any significant functional differences between the plans.

ELSA

English tutor with pronunciation and immediate multimodal feedback . Simulates realistic conversations and tracks progress.

Free: Two lessons per planet/topic/game. Premium : $13,33/month or $159,99/year with interview practice and personalized plans.

BingAI

Microsoft chat focused on natural dialogue and practical tasks such as planning trips or creating resumes based on GPT-4.

It's free, with a limit of 300 questions per interaction according to the sources analyzed. It's presented as an open-source platform in those references.

Eat

Chatbot for emotional management with CBT : mood tracking, journaling, and emotional assessment. Subscription required to use the app.

Prices: medication $24/week ; therapy and behavioral counseling $45/week ; complete package (therapy+counseling+medication) $55/week.

PowerDirector and PhotoDirector

For video (PowerDirector): automatic subtitles, text-to-speech, body effects, and "AI Anime Video" . For photos (PhotoDirector): avatars, text-to-image, and generative fill . Both are available on Android and iOS.

Pros: Many AI features and frequent updates; Cons: Some features and copyright-free library only in paid versions.

Vivid Glam and MyEdit

Vivid Glam (iOS): A beauty camera with hundreds of filters and face retouching for selfies and videos. It can be overwhelming if you're starting from scratch.

MyEdit (online): browser-based photo and audio editing with image generator, filters, object removal, and voice changer . Free, clear interface; does not support some image formats.

midjourney

Gold standard in image generation (v6) from Discord or web, with style control and character consistency.

Pros: Professional quality and active community. Cons : No longer has a free plan and requires a learning curve.

Mubert, ElevenLabs and Media.io (audio)

Mubert: Creates music using AI prompts, mood, genre, and duration . Free with 25 songs/month and a watermark.

ElevenLabs: a leading multilingual and realistic text-to-speech and voice cloning company ; limited free plan and ethical considerations.

Media.io: voice changer with 20+ profiles and quick effects, no ads ; quality varies depending on the effect.

Grammarly, Synthesia, and Transcribeme.app (productivity)

Grammarly: real-time spell checker with tone and style , integrates mobile apps; does not work with Google Docs as mentioned.

Synthesia: corporate videos with AI avatars in 120 languages , no filming required; free demo, paid plan with no free option.

Transcribeme.app: fast and simple online transcription , good free plan; low accuracy with noise or multiple voices.

Photomath and assistants on mobile

Photomath: Scan an equation and it gives you interactive steps and graphs . It works offline for specific exercises.

In addition, Google Assistant or Siri are still useful for reminders, searches, and connected home from your phone.

Free and paid models: what each includes

In the most comprehensive comparisons, these notes on "models by plan" are repeated. Here is the summarized map :

• ChatGPT: Free with GPT‑4o mini; Plus ($20/month) with full GPT‑4o and access to GPT‑4.5 where applicable; higher tiers include Sora (video) and fewer limits.
• Gemini:: Free with limited Flash 2.0 and experimental Flash 2.0 Pro; paid with full Flash 2.0 and extended integration.
• Copilot: Prometheus base; free with off-peak GPT-4/4o access and 15 image boosts; paid, priority, and 100 boosts.
• DeepSeek: V3 (General) and R1 (Reasoning) both free and paid; pay for longer dialogues.
• GrokGrok‑3 for both; very limited free (10 requests/2 hours); higher payment rates.
• Le Chat (Mistral): Uses Mistral Large, with limitations that are reduced by paying; it produces images with modest results.
• Claude: Free with 3.7 Sonnet (daily use on demand); paid for with higher capacity and other models like 3.5 Haiku.

Key Features: What Each AI Can Do

Almost all of them search, reason, accept files, and generate code, but there are relevant differences :

• ChatGPT: Web search, voice, attachments (PC, Drive, OneDrive), math operations, and code; custom GPTs (paid for creation), conversation mode, and very limited image creation in the free version.
• Gemini:: web search, attachments/photos, voice, images; integrates with Google (paid upgrade) and seamless project management.
• Copilot: search, voice, attachments, images with DALL‑E with good quality; integration with Microsoft 365.
• DeepSeek: search, attachments, math and code; local download on PC offline for privacy.
• Grok: Search the Internet and X, DeepSearch, Attachments, Math/Code and generation of images with less censorship.
• The Chat: search, collaborative Canvas for documents and mockups, text interpreter, and configurable agents; images with improvable quality.
• Claude: does not search the web or generate images; excellent in reasoning, styles and file analysis.

Highlighted strengths and weaknesses

• ChatGPT: pros in naturalness, community and versatility; cons in image limits and advanced features behind payment.
• Gemini:: Google integration and multimodality; cons: sometimes uneven quality and shorter responses.
• Copilot: best free image and good Windows integration; cons in clarity of natural language.
• DeepSeek- Lots of free value and strong reasoning; cons: no images and privacy/regulation concerns.
• Grok: Access to X and less image censorship; the downsides, strictly speaking, are controversy and dependence on the X app.
• The Chat- Very fast, privacy, and good fonts; Cons: Less modern mobile app and evolving beta version.
• Claude: Excellent writing and reasoning with style selector; without website or images It weighs him down against rivals.

Real-life testing: how they respond

They have been compared in specific questions to observe structure, hallucinations and level of detail :

What is Xataka?

• ChatGPT: quick and correct in 4 paragraphs.
• Gemini:: complete and by points, all correct.
• Copilot: correct but more generic.
• DeepSeek: only one with hallucinations in this test.
• Grok: brief but precise.
• The Chat: correct, somewhat less informative.
• Claude: concise and well structured.

Who is Yubal Fernandez?

• ChatGPT: the most detailed, with extensive data.
• Gemini:: focused on the professional.
• Copilot: the shortest.
• DeepSeek: complete but with some final invention.
• Grok: descriptive without many details.
• The Chat: specifies that he writes in Xataka Basics.
• Claude: Well written, with several content errors.

iPhone 16 vs Pixel 9 (with search)

• ChatGPT: comparison chart + pros/cons and conclusion.
• Gemini/Copilot: more summarized, with strengths and weaknesses.
• DeepSeek: Technical search problems; the most comprehensive structure.
• Grok: the weakest, very general.
• The Chat: detailed and well written.
• Claude: good, with table and recommendation by profiles.

Monty Hall problem

• Everyone is rightChatGPT, Le Chat: concise answers; Gemini/DeepSeek: very concise; Copilot/Grok: broad and well-explained; Claude: clear and nuanced.

Impact of AI on chip design

• ChatGPT: 4 key themes with development and conclusion.
• Gemini:: too summarized and messy.
• Copilot/Grok: long and well explained.
• DeepSeek/Claude: sections by points, clear technical content.

Native AI on mobile: Why it matters (and which models stand out)

Mobile phones with integrated AI offer energy optimization, computational photography, biometric security, and more natural assistants . The following are some of the key examples mentioned in the sources:

• Samsung Galaxy S25 Ultra: Exynos 2500 for AI, battery that adapts to your use, scene recognition and predictive focusing, advanced biometrics.
• iPhone 16 Pro: A18 Bionic with AI for computational photography, more accurate Face ID and privacy and security improvements.
• Xiaomi 14 Pro: Snapdragon 8 Gen 3 and MIUI 15 with AI for night photo and customization of the interface.
• Oppo Find X7 Pro: Snapdragon 8 Gen 3 and MariSilicon Y technology for real-time photo processing and energy management.

Cross-cutting benefits in Android: better battery life, customization, security, photos, and voice accessibility . A smartphone with native AI + third-party apps is today's "winning combination."

Basics: How an LLM Works (and What a Token Is)

A great language model doesn't search the internet every time you ask it; it predicts the next word based on patterns learned during its training with huge corpora (articles, books, code, forums...).

When you read “The capital of France is…”, the model remembers that the most likely continuation is “Paris”. This process is repeated billions of times, adjusting internal weights to reduce errors. The result: it generates texts that are statistically coherent, not based on human understanding.

Tokenization divides text into units (tokens). Token limits determine the amount of context the model can process: the larger the token, the greater the capacity to summarize videos, read long PDFs, or hold extended conversations without losing track.

Quick comparison questions

Are there any truly free AI apps? Yes: ChatGPT, Perplexity, Gemini, Copilot, DeepSeek, and many creative apps (Lensa, WOMBO Dream) offer free plans with limitations. Some, like UPDF AI or ELSA , allow you to try features before paying.

Which is the best AI for Android? It depends on the task: ChatGPT or Claude for writing, Perplexity for researching with sources , Copilot for images and Office, Gemini if ​​you use the Google ecosystem, and Lensa/PowerDirector/PhotoDirector for visual tasks.

Which free AI is the most comprehensive? DeepSeek excels in reasoning, Perplexity is excellent at verification , and Copilot stands out in image processing; the free ChatGPT works well for everyday use.

Can I use AI through WhatsApp? Yes: there are options like LuzAI, Copilot, or Meta AI with direct conversational use from the app.

If you enjoy chatting, studying, or creating, you've got the perfect solution: combine a general-purpose chatbot (ChatGPT, Gemini, or DeepSeek) with a verified search engine like Perplexity and a creative tool (Lensa, WOMBO Dream, PowerDirector/PhotoDirector). If you need voice or music support, add ElevenLabs or Mubert. With native AI on your phone and these apps, your Android device becomes a daily ally for productivity, learning, and creativity.