Comparison

Knowledge Robo vs Instant Doc

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

Head to head
About

Knowledge Robo

This AI-powered assistant uses advanced models to answer questions, generate images, and assist with writing tasks. It supports multiple languages and offers organized conversations for a streamlined user experience.

Highlights
  • AI Chat with GPT and Gemini
  • AI Image Generation
  • Voice Input for AI Responses
  • Organized Conversations
  • Multi-language Support
  • Export and Share Conversations
  • AI Writing Assistance
Read full description

The Knowledge Robo is your personal AI Chat Assistant Powered by GPT and Gemini Models to make your life easier. It can clarify your doubts and provide you solutions in different areas and also generate images based on your inputs using AI. Key Features : ● Unlimited questions and answers ● Create organized conversations ● Enhanced search and management ● AI Chat ● AI Image Generation ● AI Responses with voice input ● Easy Interface ● Multi-language support ● Robo Chat ● Ask Anything You can inquire about anything you like with AI. With The Knowledge Robo, you can get immediate responses to all your questions, whether it's about science, history, pop culture, or general knowledge. You can export your conversations with AI Chat and share them with anyone. The Knowledge Robo AI Chat can help you streamline your writing, from idea generation to full paragraph composition, using its AI-driven writing assistance features. You can unlock your creativity with The Knowledge Robo and pen a rap song, author a poem, or weave a tale. With multilingual functionalities, you can engage in any language and translate texts effortlessly with AI Chat. Whether it's sports, politics, or science, It is always eager to chat about any topic. Its friendly and engaging tone creates an authentic conversation and provides personalized recommendations aligned with your preferences and interests. The Knowledge Robo can inspire out-of-the-box thinking and offer diverse perspectives for brainstorming and problem-solving. Try The knowledge Robo for invaluable career advice, job hunting strategies, and insights into various industries. Stay informed about the latest trends and news with The Knowledge Robo, whether it's tech and devices or fashion and pop culture. You can also enhance your skillset with The knowledge Robo by acquiring new skills or improving existing ones, from programming to culinary arts. Join the future and experience the most sophisticated, free chat assistant available on your device that harnesses the power of AI.

About

Instant Doc

Features
Read full description

Instant Doc is a fast and simple document scanner. Scan documents with your phone camera and convert them into clean PDF files in seconds. Whether you need to scan receipts, invoices, notes or contracts, Instant Doc makes the process quick and effortless. Key features • Scan documents using your camera or images • Convert scans to PDF instantly • Merge multiple PDFs into one • Split PDFs or extract pages • Enhance scans with contrast and brightness filters • Preview and rename your documents • Extract text from documents (OCR) Simple and efficient Instant Doc focuses on what matters most: scanning documents quickly and creating clean PDFs without unnecessary complexity.

Screenshots

Knowledge Robo4 screens
Instant Doc4 screens

Verdict

The call

The clearest difference is in-app purchases: Instant Doc at none against Knowledge Robo's 2. Knowledge Robo's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence and device support 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. Knowledge Robo sells 2 one-off in-app purchases. Instant Doc asks for nothing beyond the download.

UpkeepUpdate frequency

Knowledge Robo ships an update weekly, Instant Doc every 8 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Knowledge Robo versus Instant Doc: the parameters behind the verdict, then further details
ParameterKnowledge RoboInstant Doc
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyWeekly — betterEvery 8 days
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size67 MB133 MB
Age rating17+4+
DeveloperShashi GuptaAxel FLEURY

In-app purchases

2 purchases

Knowledge Robo

One-time2
  • Coins Basic$0.99
  • Coins Premium$1.99
None

Instant Doc

No in-app purchases

Questions

Is Knowledge Robo free?
Knowledge Robo is free to download, with in-app purchases available.
Is Instant Doc free?
Instant Doc is free to download, with no in-app purchases.
Do Knowledge Robo or Instant Doc have ads?
Instant Doc shows ads; Knowledge Robo does not.
Which is updated more often, Knowledge Robo or Instant Doc?
Knowledge Robo ships an update weekly, and Instant Doc every 8 days. Most recently, Knowledge Robo was updated on November 3, 2026 and Instant Doc on October 28, 2026.

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