Comparison

Linear System Solver vs IA Chatbot Assistant

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

Head to head
About

Linear System Solver

Features
Read full description

This application helps students or any person who needs, to solve a system of 3 linear equation with 3 unknowns. A system of linear equations is of this type: / | a11.x + a12.y + a13.z = c1 | a21.x + a22.y + a23.z = c2 | a31.x + a32.y + a33.z = c3 \ Values are required for x,y,z which satisfy the 3 equations. In the application skema, insert the matrix coefficients: a11 a12 a13 a21 a22 a23 a31 a32 a33 and next insert the constant values: c1 c2 c3 Finally, hit the Solve button. If the system has a real solution, this will be shown (x,y,z) in the last row. If no real solution exists, NO,NO,NO will be shown.

About

IA Chatbot Assistant

This AI-powered virtual assistant offers instant answers to any question, supports multiple languages, and provides diverse chat experiences. It also assists with writing, education, work tasks, idea generation, and content summarization.

Highlights
  • Instant AI answers
  • Multilingual support
  • AI writing tools
  • Educational assistance
  • Professional writing aid
  • Content summarization
  • Idea generation
Features
Read full description

A Chat application that uses AI (Artificial Intelligence) technology - A virtual assistant just for you will bring wonderful experiences. Outstanding features of the application: - Ask questions get answers instantly - Ask anything and provide unlimited answers - AI answer questions in many different languages - Diverse and enhance the ability to chat with AI in many forms: chat AI, voice AI, scan, text-to-speech AI WRITING ASSISTANT - Write articles on demand quickly and effectively with useful AI Writing tools - Turn simple ideas into interesting articles and stories - It is possible to rewrite your text and make it more attractive and professional - Easily complete all writing requests EDUCATION - AI answer questions about subjects, help you improve your study results: Math, Literature, English, History, Chemistry - AI essay writing as requested SUPPORT AT WORK - Write professional emails and CVs in all fields: sales, announcement, or discount emails - Create a professional resume and cover letter - Suggested questions and answers for interviews - Helps you create business plans, marketing strategies,... CREATE IDEAS - Generate ideas and propose solutions for all your requirements - Create posts for Facebook, Instagram, Twitter,... - Create content, write captions AI for posts and videos TEXT SUMMARIZER - Identify key information and present it concisely - Help you easily grasp content, saving time and effort - Summarize, rewrite, and translate PDF files for you - Share the URL of any YouTube video and the bot will summarize, rewrite, translate or answer all your questions about it. AI FUN - Create lyrics and compose music for you - Entertain yourself with extremely interesting and engaging games And thousands of other attractive features, promising to bring you extremely interesting and useful experiences. This is more than just an Artificial Intelligence Chatbot; it is a place that connects knowledge, creativity, language proficiency and personal development. In this rapidly changing world, it serves as a compass, guiding you through the complexities of modern life. Just enter your request, AI will help you with every task. Please read Terms of Use: https://4ai.presbtech.com/terms/

Screenshots

Linear System Solver2 screens
IA Chatbot Assistant4 screens

Verdict

The call

The clearest difference is price: IA Chatbot Assistant at Free against Linear System Solver's $0.99. IA Chatbot Assistant also leads on iOS requirement (13.0 vs 15.0). Linear System Solver's advantage is in-app purchases (none vs 10) and update cadence (every 3 days vs every 3 weeks). On ads 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

IA Chatbot Assistant is free to download; Linear System Solver costs $0.99 up front. IA Chatbot Assistant sells 10 in-app purchases, starting at $9.99 per 7 days. Linear System Solver asks for nothing beyond the download.

UpkeepUpdate frequency

Linear System Solver ships an update every 3 days, IA Chatbot Assistant every 3 weeks. The most recent releases landed on September 26, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
Linear System Solver versus IA Chatbot Assistant: the parameters behind the verdict, then further details
ParameterLinear System SolverIA Chatbot Assistant
Price$0.99Free — better
Rating—4.1 (23 ratings) — better
Positive reviews—80.0% of reviews
Number of ratings—23 — better
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size1 MB122 MB
Age rating4+4+
DeveloperLuigi FontiPresB

In-app purchases

None

Linear System Solver

No in-app purchases

10 purchases

IA Chatbot Assistant

Subscriptions10
  • AI Premium3 Days trial$9.997 Days
  • AI Premium$9.997 Days
  • AI Premium$14.997 Days
Show 7 more
  • AI Premium$19.991 Month
  • AI Premium$29.991 Month
  • AI Premium3 Days trial$39.991 Year
  • AI Premium$39.991 Year
  • AI Premium$49.991 Year
  • AI Premium3 Days trial$49.991 Year
  • AI Premium$99.991 Year

Questions

Is Linear System Solver free?
Linear System Solver costs $0.99, with no in-app purchases.
Is IA Chatbot Assistant free?
IA Chatbot Assistant is free to download, with in-app purchases available.
Do Linear System Solver or IA Chatbot Assistant have ads?
Neither Linear System Solver nor IA Chatbot Assistant shows ads.
Which is updated more often, Linear System Solver or IA Chatbot Assistant?
Linear System Solver ships an update every 3 days, and IA Chatbot Assistant every 3 weeks. Most recently, Linear System Solver was updated on September 26, 2026 and IA Chatbot Assistant on September 20, 2026.

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