Knotifen vs Variance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Knotifen
This app helps university students in the US stay connected and informed about campus life. Users can subscribe to specific interests, post updates, share information, and engage with their campus community.
- Personalized campus subscriptions
- Post and share updates
- Connect with campus community
- Interest-based content
- Stay informed on campus events
Read full descriptionHide full description
Knotifen is your ultimate campus companion, designed for students in universities across the US. Stay informed and engaged with personalized subscriptions where you can post, share, and connect with your campus community. Choose from a variety of interests and get updates that matter to you. With Knotifen, you're always in the loop!
Variance
Prepare for quantitative finance interviews with this app. Practice probability, mental math, logic puzzles, and more with detailed solutions and progress tracking. Sharpen your mathematical intuition and problem-solving skills for trading and research roles.
- Probability practice
- Mental math exercises
- Logic puzzles
- Detailed solutions
- Progress tracking
- Topic-specific practice
Read full descriptionHide full description
Prepare for quant interviews with focused practice in probability, mental math, sequences, and brainteasers. Variance brings quantitative training, performance comparisons, market reading, and career discovery into one app. Whether you're preparing for a trading or quant research interview, or sharpening your problem-solving skills, build a practice routine that fits your day. PRACTICE QUANTITATIVE SKILLS • Mental math and arithmetic • Probability and statistics • Expected value and conditional probability • Sequences and pattern recognition • Brainteasers and logic puzzles BUILD YOUR TRAINING ROUTINE Explore different practice modes and difficulty levels. Focus on specific topics, challenge your speed and accuracy, and review explanations in supported question modes. KNOW WHERE YOU STAND Track your performance and personal bests. Explore score distributions and percentile comparisons to understand how your results compare with other players. COMPETE AND STAY MOTIVATED Compare results on global leaderboards and work toward your next personal best. EXPLORE MARKETS AND CAREERS Read the market brief, browse finance firms, and discover quant internship and full-time opportunities through links to career resources and job boards. Built for students, aspiring traders, quant researchers, and anyone who enjoys quantitative problem-solving. Train with purpose. Prepare with Variance. Terms of Use: https://www.thequantprepapp.com/terms Privacy Policy: https://www.thequantprepapp.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Knotifen at none against Variance's 2. Knotifen also leads on iOS requirement (12.0 vs 26.0). Variance's advantage is rating (5.0 vs 4.8). 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. Variance sells 2 in-app purchases, starting at $9.99 per month. Knotifen asks for nothing beyond the download.
Variance holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively.
| Parameter | Knotifen | Variance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 5 | 8 — better |
| Update frequency | — | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 82 MB | 20 MB |
| Age rating | 12+ | 12+ |
| Developer | Richard Abhulimhen | Benjamin Kawano |
Customer experience
Knotifen
Variance
In-app purchases
Knotifen
No in-app purchases
Variance
- Variance Pro Monthly7 Days trial$9.991 Month
- Variance Pro 6-Month$49.996 Months









