Sets Challenge vs Symbols
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sets Challenge
Master fundamental set theory concepts through an engaging, multi-level game. Practice operations like intersection, union, and complement individually or with others. Ideal for students and educators, it can even be used for classroom presentations.
- Master set theory basics
- Practice intersection, union, complement
- Multi-level gameplay
- Play solo or in groups
- Classroom projector display option
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Sets Challenge is a multi-level game that will help you master the basic of sets theory while having fun and challenging yourself and your colleagues. Play this game to learn about and use the intersection, union, complement, power sets and other operators. You can play by yourself or in groups. Sets Challenge may also be displayed via a projector for a really engaging in-class game. A must play for students; a must use for teachers!
Symbols
Learn symbolic logic through interactive exercises and visual study cards. Master rules of inference, evaluate arguments, and translate everyday language into formal logic. Progress through various activities to build and solidify your understanding of logical reasoning.
- Comprehensive Studycards with clear explanations
- Interactive activities for skill mastery
- Validity: Evaluate pre-solved arguments
- Justification: Deduce missing argument steps
- Inference: Build valid arguments
- Translation: Convert statements to logical form
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Learn logic with Symbols, the app that teaches natural deduction and the rules of inference in an intuitive, accessible way. Our unique Studycards feature visual pictographs and interactive, step-by-step exercises that allow you to grasp each rule easily and quickly. Then, challenge yourself with activities specifically designed to practice those rules, building your skills progressively, and cementing them in your memory with every level completed. Why Symbols? Comprehensive Studycards: Learn essential rules like Modus Ponens, Modus Tollens, Disjunctive Syllogism, and many more through clear explanations and examples. Perfect for students and anyone looking to understand formal logic. Engaging Activities for Skill Mastery: Validity: Sharpen your critical thinking by evaluating pre-solved arguments. This unique activity provides the benefits of repetition without the tedium, helping you apply, recognize, and grow familiar with the rules of inference. Justification: Challenge your understanding with puzzle-like scenarios where you deduce missing argument steps. This deepens your comprehension and refines your application of logical rules within complex arguments. Inference: By this stage, the training wheels are off, and the student has to draw on everything they've learned so far. Their task is to mentally build a valid argument from what’s provided—or to recognize that no valid argument can be formed. What would normally be worked out slowly on paper is now done at the speed of thought. Translation: Translation helps students practice turning statements with indicator words and phrases into logical form. These indicator words, commonly found in logic books and courses, give students a sense of how to translate everyday language into formal logic. Translation breaks this process into levels, allowing students to track their progress and earn new scores as they build proficiency. Download Symbols for free and begin your journey into formal logic. Your free access includes the first level of every activity and the Modus Ponens study card, a must-have for getting started. For more advanced content and features, simply use our in-app purchases to continue building your logic skills. Start your journey of mastering the rules of inference now!
Screenshots
Verdict
The clearest difference is review sentiment: Symbols at 100% against Sets Challenge's 33%. Symbols also leads on rating (4.5 vs 3.0) and update cadence (every 6 weeks vs every 4 months). Sets Challenge's advantage is in-app purchases (none vs 6) and iOS requirement (9.0 vs 12.0). On price, ratings volume, 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
Both are free to download. Symbols sells 6 in-app purchases, starting at $3.99 per month. Sets Challenge asks for nothing beyond the download.
Symbols holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 33% of Sets Challenge's written reviews are positive against 100% of Symbols's.
Sets Challenge ships an update every 4 months, Symbols every 6 weeks. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.
| Parameter | Sets Challenge | Symbols |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 | 8 — better |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 8 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Knowledge Platform Pte Ltd | Matthew Rayes |
Customer experience
Sets Challenge
Symbols
In-app purchases
Sets Challenge
No in-app purchases
Symbols
- Monthly Subscription$3.991 Month
- Weekly subscription3 Days trial$3.997 Days
- Monthly Subscription$6.991 Month
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- Three Month Subscription$18.993 Months
- Yearly Subscription$24.991 Year
- Annual Subscription$39.991 Year
Questions
Is Sets Challenge free?
Is Symbols free?
Which has better reviews, Sets Challenge or Symbols?
Do Sets Challenge or Symbols have ads?
Which is updated more often, Sets Challenge or Symbols?
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