Comparison

AI helper vs Ninja AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI helper

This AI-powered tool offers advanced language assistance, including context-aware translations, grammar correction, and content summarization. It functions as a writing assistant for emails and essays, with a comprehensive dictionary. The app is designed to be lightweight and ad-free, requiring no account for use.

Highlights
  • AI-driven multi-language translation
  • Grammar check and correction
  • AI chatbot writing assistance
  • Content summarizer
  • Comprehensive dictionary
  • Ad-free and no account required
Features
Read full description

This translation app prioritizes: 1. A delicate, dynamically responsive design, optimized for any phone or even tablets. 2. A lightweight app without ads 3. AI-driven translation - Natural language processing Key features include: - Context-driven paragraph / essay translations in multi-language via AI processing - Grammar check, fix, assistance by AI chatbot - Letter / Email writing assistant by your requirement, processed by AI - Content text summarizer, for main points summary, computed by AI - Comprehensive dictionary * Ads-free and No account required We designed this app to enhance your language usage through advanced AI-powered features. Our goal is bringing the efficient AI-powered features to users widely at the lowest cost or even FREE. It's really useful for learning language, works or in travel. The translation utilize a Transformer sequence-to-sequence architecture in natural language processing, bypassing the need for a intermediary language like traditional translation services. Example: - When translating from Spanish to Chinese (中国语), a traditional translation may need to do a scan full-text search word-by-word from Spanish to English first, then re-processing from English to Chinese (中国语). - Our AI seq-to-seq translation based on vectorized data (in number matrix) to get directly from source language to destination language. The translation processed between the following languages directly: Afrikaans, Amharic, Arabic, Asturian, Azerbaijani, Bashkir, Belarusian, Bulgarian, Bengali, Breton, Bosnian, Catalan, Valencian, Cebuano, Czech, Welsh, Danish, German, Greek, English (Inglese), Spanish, Estonian, Persian, Fulah, Finnish, French, Western Frisian, Irish, Gaelic, Scottish Gaelic, Galician, Gujarati, Hausa, Hebrew, Hindi, Croatian, Haitian, Haitian Creole, Hungarian, Armenian, Indonesian, Igbo, Iloko, Icelandic, Italian, Japanese, Javanese, Georgian, Kazakh, Central Khmer, Kannada, Korean, Luxembourgish, Letzeburgesch, Ganda, Lingala, Lao, Lithuanian, Latvian, Malagasy, Macedonian, Malayalam, Mongolian, Marathi, Malay, Burmese, Nepali, Dutch, Flemish, Norwegian, Northern Sotho, Occitan, Oriya, Panjabi, Punjabi, Polish, Pushto, Pashto, Portuguese, Romanian, Moldavian, Moldovan, Russian, Sindhi, Sinhala, Sinhalese, Slovak, Slovenian, Somali, Albanian, Serbian, Swati, Sundanese, Swedish, Swahili, Tamil, Thai, Tagalog, Tswana, Turkish, Ukrainian, Urdu, Uzbek, Vietnamese, Wolof, Xhosa, Yiddish, Yoruba, Chinese (Mandarin), Zulu App comes with 2 Plans: • BASE Plan / Always-Free Tier: Perfect for testing tasks. Tight rate-limited request. Especially, no-ads, no account required, no prepaid. • PRO Plan: Unlock unlimited access to all available models. Generous rate-limited request with advanced helpers. We Offers PRO plan with: • Weekly, monthly and annually subscription. • Annually subscription comes with family-sharing • Life-time purchase. Terms: https://policies.aihubapp.io/inapppurchase/

About

Ninja AI

This AI assistant offers a dual experience with a chat agent for everyday tasks and an autonomous agent for complex projects. It supports numerous premium AI models for tasks like coding, content creation, research, and website building, boasting high-speed performance.

Highlights
  • Dual AI experience (Chat & Autonomous Agent)
  • Supports 40+ premium AI models
  • Autonomous project execution on its own computer
  • Blazing fast performance (up to 3000 tokens/sec)
  • Website building and deployment
  • Content creation (text, images, video, podcasts)
  • Code generation and debugging
  • File analysis and research
Features
Read full description

Meet Ninja AI, your All In One AI Assistant with 40 Premium Models • Ninja mode for everyday AI tasks • SuperNinja Agent for autonomous projects on its own computer Why Ninja AI • Dual AI Experience: • Ninja Chat Agent powered by GPT 5, Claude Sonnet, Gemini Pro, DeepSeek, Grok • SuperNinja Agent on its own computer for complex work • Blazing Fast Performance: • Up to 3000 tokens per second • Five to ten times faster than competitors • Parallel task execution with no waiting • Every AI Model You Need: • OpenAI GPT 5, GPT 4.1, DALL E 3 • Anthropic Claude 3.7 Sonnet and Haiku • Google Gemini 2.5 Pro and Flash • DeepSeek R1 and V3 • Amazon Nova Pro, Canvas and Reel • Meta Llama 4 Scout and Maverick • Plus FLUX, Mistral, Stable Diffusion and more SuperNinja Agent Capabilities • Build Complete Websites: • Describe your vision and SuperNinja codes and deploys your site with full functionality on its own computer • Create Business Tools: • Generate dashboards, spreadsheets, presentations and documents • Conduct Deep Research: • Get comprehensive reports with citations and insights • Generate Production Ready Code: • From single scripts to full applications Ninja Chat Agent Features • Answer Any Question: • Real time search or deep research on any topic • Write and Create Content: • Generate posts, emails, articles and marketing materials • Create Stunning Visuals: • AI images with DALL E 3, FLUX Pro, Imagen 4 Ultra, Amazon Nova Canvas, Stable Diffusion XL • Generate Videos: • Dazzling videos with Amazon Nova Reel • Turn Text into Podcasts: • One click conversion into high quality audio • Analyze Files: • Upload and analyze text, images, PDFs and reports • Code Generation and Debugging: • Create and debug code in Python, JavaScript, C++ and more • Automate Meeting Scheduling: • Connect Gmail and let Ninja schedule meetings • Built in Editor: • Workspace to create, refine and manage writing or code • Compare Mode: • View results from any two AI models side by side Perfect For • Developers accelerating development cycles • Entrepreneurs conducting market research and creating materials • Students building projects without coding experience • Researchers analyzing and synthesizing information • Content Creators generating multi format outputs • Business Professionals automating workflows Get Started Today • Experience Ninja mode for quick AI tasks and SuperNinja Agent on its own computer for full projects • Download now and transform how you work with AI Web App: https://super.myninja.ai/ Learn More: https://www.ninjatech.ai/ Terms: https://www.ninjatech.ai/terms-of-service

Screenshots

AI helper4 screens
Ninja AI4 screens

Verdict

The call

The clearest difference is review sentiment: AI helper at 100% against Ninja AI's 56%. AI helper also leads on rating (5.0 vs 4.0) and iOS requirement (13.4 vs 15.1). Ninja AI's advantage is ratings volume (52 vs 4). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AI helper sells 4 in-app purchases, starting at $1.99 per 7 days and Ninja AI sells 7 in-app purchases, starting at $5.00 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

AI helper holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Ninja AI has 52 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of AI helper's written reviews are positive against 56% of Ninja AI's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 7, 2026 and September 8, 2026 respectively.

Scorecard4 real differences · 6 level
AI helper versus Ninja AI: the parameters behind the verdict, then further details
ParameterAI helperNinja AI
PriceFreeFree
Rating5.0 (4 ratings) — better4.0 (52 ratings)
Positive reviews100.0% of reviews — better56.0% of reviews
Number of ratings452 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.4 — better15.1
Further details — not scored
Size24 MB61 MB
Age rating4+12+
DeveloperTRIPICAL VIET NAM LIMITED LIABILITY COMPANYNinjatech AI, Inc

Customer experience

AI helper

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Ninja AI

All ratings52 ratings
Positive71.2%
Neutral7.7%
Negative21.2%
Written reviews50 reviews
Positive56.0%
Neutral8.0%
Negative36.0%

Bugs and requests

AI helper

Not enough reviews yet to summarise bugs or requests.

Ninja AI

Reported bugs

2 issues
  • Crashes and freezes reported
  • Compatibility issues with older devices

Requested features

2 requests
  • Implement delete option for chat history
  • Add Chinese language support

In-app purchases

4 purchases

AI helper

Subscriptions3
  • Weekly subscription$1.997 Days
  • Monthly subscrition$2.991 Month
  • Annually Subscription7 Days trial$19.991 Year
One-time1
  • Lifetime purchase$29.99
7 purchases

Ninja AI

Subscriptions7
  • Standard$5.001 Month
  • Pro$10.001 Month
  • Ultra$15.001 Month
Show 4 more
  • SuperNinja Standard$19.001 Month
  • SuperNinja Pro$29.001 Month
  • SuperNinja Ultra$49.001 Month
  • SuperNinja Max$149.001 Month

Questions

Is AI helper free?
AI helper is free to download, with in-app purchases available.
Is Ninja AI free?
Ninja AI is free to download, with in-app purchases available.
Which has better reviews, AI helper or Ninja AI?
AI helper is rated higher. AI helper averages 5.0 out of 5 from 4 ratings, while Ninja AI averages 4.0 from 52 ratings.
Do AI helper or Ninja AI have ads?
Neither AI helper nor Ninja AI shows ads.
Which is updated more often, AI helper or Ninja AI?
AI helper ships an update fortnightly, and Ninja AI fortnightly. Most recently, AI helper was updated on September 7, 2026 and Ninja AI on September 8, 2026.

Other comparisons