Comparison

ProEngineer Calculator vs Solemnace

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

Head to head
About

ProEngineer Calculator

This app provides engineers and students with a comprehensive suite of tools for complex calculations across various engineering disciplines. It offers features for stoichiometry, thermodynamics, electrical, and fluid mechanics, along with process visualization and project management aids.

Highlights
  • Stoichiometry & Material Balances
  • Thermodynamics Calculations
  • Electrical Calculations
  • Flow Mechanics Calculator
  • Process Timeline
  • Consultant Directory
Features
Read full description

ProEngineer Calculator — Your Comprehensive Engineering Companion Engineered for professional engineers and engineering students alike, ProEngineering Calculator combines powerful tools and practical resources to tackle complex calculations and process management with ease. From chemical stoichiometry to electrical and flow mechanics, this app is built to optimize accuracy and efficiency in all your engineering tasks. Features that Empower Your Engineering Work: Stoichiometry & Material Balances: Perform precise chemical reaction and mass flow calculations for process design and analysis. Thermodynamics Calculations: Access essential formulas for heat transfer, energy balances, and thermodynamic properties. Process Flow Diagram (PFD) Reference: Visualize and reference standardized PFD symbols and conventions within the app. Electrical Calculations: Solve electrical circuit problems and perform power, voltage, and current assessments. Flow Mechanics Calculator: Analyze fluid flow, pressure drops, pump performance, and piping systems accurately. Process Timeline: Organize and plan process stages with clear, visual timelines. Consultant Directory: Locate and connect with industry experts to support your projects. Intuitive Interface: Designed for quick data input and immediate results — perfect for both on-site work and office environments. ProEngineering Calculator is an essential engineering toolkit for professionals in chemical, mechanical, process, and electrical engineering fields. Boost your productivity, minimize errors, and take your engineering projects to the next level. Download now to make engineering smarter, faster, and easier.

About

Solemnace

Experience lightning-fast AI interactions and build a visual knowledge tree for in-depth research. Enjoy private, on-device voice communication and connect to any AI provider for ultimate freedom.

Highlights
  • High-speed AI responses
  • Complex table generation
  • Visual knowledge tree navigation
  • On-device voice mode
  • Connect to any AI provider
  • Local AI server integration
  • User data privacy
Features
Read full description

Solemnace is a high-performance AI application designed for those who value speed, privacy, and deep learning. While major platforms like ChatGPT, Claude, and Gemini often feel slow or restrictive, Solemnace delivers a drastically faster experience with smooth text and complex table generation that never lags. The app introduces a game-changing navigation system that transforms how you research. You can dive into any term or concept within a generated response to open a new research path on a separate screen. This allows you to build an expansive knowledge tree, making it incredibly easy to organize complex data and master new topics. This visual structure ensures your learning process remains intuitive and organized. Communication is handled through a handcrafted on-device voice mode. By processing voice locally, the app provides a reliable and lag-free conversational experience. It works instantly and maintains high performance even when cloud services are unstable. Solemnace is built on the principle of user freedom. You are not locked into a single ecosystem or forced to share your data with big tech companies. You can connect the app to any AI provider you choose or link it directly to your own local AI servers. This allows you to maintain total privacy and stay independent from corporations that profit from your personal data. Stop compromising on speed and security. Solemnace offers the most powerful AI interface available, giving you the tools to explore information without limits. Take control of your intelligence and experience the future of private, high-speed AI.

Screenshots

ProEngineer Calculator4 screens
Solemnace3 screens

Verdict

The call

The clearest difference is price: Solemnace at Free against ProEngineer Calculator's $19.99. Solemnace also leads on update cadence (every 9 days vs monthly). ProEngineer Calculator's advantage is rating (5.0 vs 1.0) and iOS requirement (15.1 vs 26.2). On ratings volume, 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

Solemnace is free to download; ProEngineer Calculator costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ProEngineer Calculator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

ProEngineer Calculator ships an update monthly, Solemnace every 9 days. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
ProEngineer Calculator versus Solemnace: the parameters behind the verdict, then further details
ParameterProEngineer CalculatorSolemnace
Price$19.99Free — better
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11
Update frequencyMonthlyEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.2
Further details — not scored
Size46 MB33 MB
Age rating4+17+
DeveloperMargaret Hayesrenesanse, LLC

In-app purchases

None

ProEngineer Calculator

No in-app purchases

None

Solemnace

No in-app purchases

Questions

Is ProEngineer Calculator free?
ProEngineer Calculator costs $19.99, with no in-app purchases.
Is Solemnace free?
Solemnace is free to download, with no in-app purchases.
Which has better reviews, ProEngineer Calculator or Solemnace?
ProEngineer Calculator is rated higher. ProEngineer Calculator averages 5.0 out of 5 from 1 ratings, while Solemnace averages 1.0 from 1 ratings.
Do ProEngineer Calculator or Solemnace have ads?
Neither ProEngineer Calculator nor Solemnace shows ads.
Which is updated more often, ProEngineer Calculator or Solemnace?
ProEngineer Calculator ships an update monthly, and Solemnace every 9 days. Most recently, ProEngineer Calculator was updated on October 4, 2026 and Solemnace on October 11, 2026.

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