Comparison

Chemical Engineering Formulate vs Chatbot Assistant

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

Head to head
About

Chemical Engineering Formulate

This comprehensive reference tool provides over 1,500 formulas, calculators, and conversion charts for chemical engineering professionals and students. It covers a wide range of topics including heat transfer, fluid mechanics, and reaction kinetics, with support for both US and Metric units.

Highlights
  • 1,500+ formulas and calculators
  • 700+ engineering calculators
  • US/Metric unit toggle
  • Dual-unit display
  • Searchable reference tables
  • Offline functionality
  • Save and share calculations
Features
Read full description

CHEMICAL ENGINEER is the essential tool for Chemical Engineers, Process Engineers, and engineering students. With over 1,500 formulas and calculators, this is the most comprehensive chemical engineering reference app available. The app features 700+ engineering calculators across 50 categories, 750 conversion formulas, 8 temperature scales, and 14 reference tables. All formulas support US and Metric (SI) units with one-tap toggle and dual-unit display. CORE CHEMICAL ENGINEERING - Heat Transfer -- LMTD, overall heat transfer, fin efficiency, radiation, Fourier's law - Fluid Mechanics -- Reynolds number, Bernoulli, Darcy-Weisbach, Hagen-Poiseuille - Thermodynamics -- Ideal gas, Clausius-Clapeyron, Antoine equation, compressibility - Reaction Kinetics -- Arrhenius equation, rate laws, CSTR/PFR design, Levenspiel - Mass Transfer -- Fick's law, mass transfer coefficients, wetted wall columns - Distillation -- McCabe-Thiele, Fenske, Underwood, relative volatility - Dimensionless Numbers -- Reynolds, Nusselt, Prandtl, Schmidt, Sherwood, Grashof UNIT OPERATIONS Filtration, Packed/Fluidized Beds, Compressor Sizing, Mixing, Cooling Towers, Membrane Separation, Crystallization, Liquid-Liquid Extraction, Adsorption PROCESS & SAFETY Process Economics, Process Control, Safety Engineering, Corrosion and Electrochemistry ENVIRONMENTAL Air Quality, River/Lake/Soil Pollution, Infiltration and Recharge, Evaporation, Waste ADDITIONAL CATEGORIES Piping (70), Pressure Stress (109), Material Weight (101), Area Formulas (60), Flat Plates, Pumps, Pump Laws, Steam, Crusher, Vapor Separators, Equilibrium, Cogeneration, and more CONVERSIONS BTU, Cubic, Flows, Ft-Lbs, Horsepower, HVAC, Hydraulic, Linear, Liquid, Metric (460), Power, Pressures, Square Measures, Watts, Weights TEMPERATURE SCALES Celsius, Fahrenheit, Kelvin, Rankine, Reaumur, Newton, Delisle, Romer 14 REFERENCE TABLES Chemical Properties, Steam Tables, Pipe Schedules, Material Densities, pH Scale, Engineering Constants, Chemical Resistance, Water Quality, Critical Properties, Antoine Constants, Heat Transfer Coefficients, Dimensionless Numbers, Gas Properties, Flammability Limits FEATURES - US/Metric toggle with dual-unit display - Save calculations and favorites - Share and export results - Searchable reference tables - Dark mode interface - Works offline Don't see a formula you need? Email us and we'll include it in the next update.

About

Chatbot Assistant

This AI chatbot app offers a versatile experience powered by advanced models like GPT-5 and Gemini. It helps with creative writing, homework, image generation, web analysis, and role-playing. Specialized assistants and file/link insights further enhance productivity and simplify daily tasks.

Highlights
  • Multiple advanced AI models (GPT-5, Gemini, Claude)
  • Image generation from text prompts
  • Web chat for real-time information
  • Homework and creative writing assistance
  • Role-playing adventures
  • Speech-to-text functionality
  • File and link analysis
Features
Read full description

Genesis is a free AI chatbot and AI assistant that puts every top AI model in one app. Chat with AI, ask anything, generate images, search the web, analyze files and photos, and talk using your voice, all inside a single AI chat app. ALL THE TOP AI MODELS IN ONE APP Genesis gives you GPT, Gemini, Claude, DeepSeek and Grok side by side. Switch models in one tap and pick the AI that answers best for writing, reasoning, coding or creative work. Instead of installing a separate app for every AI chatbot, you get them all in one place. PICK THE RIGHT MODEL FOR THE JOB Genesis has many chat models and image models from the top AI companies. Choose a fast one for quick questions, a reasoning model for hard problems, or a creative one for writing. Switch models in the middle of a conversation without losing the thread, and compare how different AI answer the same question. AI CHAT THAT ANSWERS ANYTHING Ask questions and get fast, accurate answers in real time. Genesis is built for everyday AI chat: explain a topic, plan a trip, draft an email, debug code, summarize a document, or just talk. AI IMAGE GENERATOR Turn text into images in seconds. Create artwork, illustrations, logos and avatars with a built-in AI image generator, then edit and refine them without leaving the conversation. AI WEB SEARCH Genesis can search the web and bring back current, relevant information with clear answers, so you never have to switch apps to look something up. Paste a link and Genesis will summarize it, translate it or pull out the key points. FILES, PHOTOS AND CAMERA Upload PDF, DOCX, PPTX, XLSX, code files and images for analysis, or snap a photo with the camera and ask about it. Extract text from a photo, summarize long documents, understand a chart or pull the key points out of a report. VOICE CHAT Speak to the AI and hear natural spoken answers back, for a hands-free AI assistant experience. WRITING, STUDY AND WORK Write essays, posts, emails and stories. Get step-by-step help with math and schoolwork. Translate, proofread and rewrite. Genesis works as a study assistant and a productivity assistant in the same app. ROLE-PLAY AND AI ASSISTANTS Dive into interactive role-play with dynamic characters, or talk to specialized AI assistants built for specific tasks. KEY FEATURES - Free AI chat powered by GPT, Gemini, Claude, DeepSeek and Grok - AI image generator and AI image editing - AI web search with up-to-date answers - Upload PDFs, documents, code and photos for analysis - Link Insight: paste a link for an instant summary or translation - Camera: take a photo and ask the AI about it - Image to text: pull written text out of any photo - Voice input and spoken AI responses - Writing, translation, math and homework help - Role-play characters and specialized AI assistants Download Genesis and get every AI chatbot in one free AI assistant app. Note: Please avoid sharing personal or sensitive information. The app's content is AI-generated and may vary in accuracy. Developers are not liable for user-generated input or content. By using the app, you confirm that you acknowledge and accept our Privacy Policy and Terms of Use: Privacy: https://sites.google.com/view/genesisai-privacy-policy/home Terms: https://sites.google.com/view/genesisai-terms-and-conditions/home

Screenshots

Chemical Engineering Formulate4 screens
Chatbot Assistant4 screens

Verdict

The call

The clearest difference is review sentiment: Chatbot Assistant at 83% against Chemical Engineering Formulate's 0%. Chatbot Assistant also leads on price (Free vs $4.99) and update cadence (every 9 days vs every 8 months). On ads, in-app purchases 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

Chatbot Assistant is free to download; Chemical Engineering Formulate costs $4.99 up front. Chemical Engineering Formulate sells 1 one-off in-app purchase and Chatbot Assistant sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Chemical Engineering Formulate ships an update every 8 months, Chatbot Assistant every 9 days. The most recent releases landed on October 23, 2026 and October 22, 2026 respectively.

Scorecard5 real differences · 5 level
Chemical Engineering Formulate versus Chatbot Assistant: the parameters behind the verdict, then further details
ParameterChemical Engineering FormulateChatbot Assistant
Price$4.99Free — better
Rating—4.7 (224 ratings) — better
Positive reviews0.0% of reviews83.3% of reviews — better
Number of ratings—224 — better
Update frequencyEvery 8 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.0 — better
Further details — not scored
Size19 MB58 MB
Age rating4+4+
DeveloperHistorycentral.comDevin Morgan

Customer experience

Chemical Engineering Formulate

Written reviews7 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Chatbot Assistant

All ratings214 ratings
Positive93.5%
Neutral1.9%
Negative4.7%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

1 purchases

Chemical Engineering Formulate

One-time1
  • Chemistry Pro$3.99
4 purchases

Chatbot Assistant

Subscriptions4
  • Pro 1 Week$5.997 Days
  • Pro 1 Week3 Days trial$5.997 Days
  • Pro 1 Month$17.991 Month
Show 1 more
  • Pro 1 Year$49.991 Year

Questions

Is Chemical Engineering Formulate free?
Chemical Engineering Formulate costs $4.99, and also offers in-app purchases.
Is Chatbot Assistant free?
Chatbot Assistant is free to download, with in-app purchases available.
Do Chemical Engineering Formulate or Chatbot Assistant have ads?
Neither Chemical Engineering Formulate nor Chatbot Assistant shows ads.
Which is updated more often, Chemical Engineering Formulate or Chatbot Assistant?
Chemical Engineering Formulate ships an update every 8 months, and Chatbot Assistant every 9 days. Most recently, Chemical Engineering Formulate was updated on October 23, 2026 and Chatbot Assistant on October 22, 2026.

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