Nautlius vs Set Theory Fundamentals
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nautlius
This app provides a comprehensive suite of tools for STEM education and professional use. It offers engineering calculators, unit conversions, property lookups, and simulation capabilities. Students and professionals can utilize it for quick calculations and data analysis.
- Engineering calculators
- Free body diagrams
- Property lookup tables
- Experiment simulations
- Unit conversion
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Nautilus is an engineering and STEM toolbox for students and professionals. Features: - Engineering Calculators: Choose from hundreds of equations and subjects for quick calculations - Free Body Diagrams: Quickly copy and paste free body diagrams with calculated values - Property Lookup: Easily find values from tables and properties - Simulations: Run your own simulations for various experiments - Unit Conversion: Convert between hundreds of units Nautilus does not contain any subscriptions or in-app purchases.
Set Theory Fundamentals
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Set Theory Fundamentals is an independent study app for building confidence with core set theory ideas through focused practice. It is designed for students, self-learners, and anyone reviewing mathematical foundations for coursework, interviews, or exams. Practice across four topic areas: Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. Work through 160 questions covering notation, operations, relations, functions, proofs, cardinality, and common reasoning traps. Features: - FSRS spaced-repetition intervals to help you review at the right time - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent practice - Mock exams for timed review - Explanation included with every question - Offline practice, no login required Practice offline, no login required. Your study flow is built for private, repeatable review. Independent study app for Set Theory Fundamentals practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.
Screenshots
Verdict
The clearest difference is iOS requirement: Set Theory Fundamentals at 15.1 against Nautlius's 18.0. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Nautlius | Set Theory Fundamentals |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Troy Husted | AFTW LLC |
In-app purchases
Nautlius
No in-app purchases
Set Theory Fundamentals
No in-app purchases
Questions
Is Nautlius free?
Is Set Theory Fundamentals free?
Do Nautlius or Set Theory Fundamentals have ads?
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