Feynman rules vs Numbly
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Feynman rules
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This app introduces Feynman rules. You can get some understanding for Feynman diagrams. E is external point, V is vertex, P is propagator, and S is symmetry factor.
Numbly
Engage in a daily numerical puzzle where you use six numbers and operators to reach a target sum. Enjoy unlimited gameplay in workout mode and share your achievements with friends. Access answers to help you progress through challenging math puzzles.
- Daily number challenges
- Six numbers and operators
- Target sum puzzles
- Social sharing
- Unlimited workout mode
- Access to answers
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Embark on a daily journey of numerical mastery with our immersive puzzle game! Each day, face a fresh challenge, utilizing six numbers and operators to crack the target sum. But the excitement doesn't end there – share your triumphs with friends on social media, fueling the competitive spirit! Immerse yourself in engaging gameplay, where strategic planning and clever arithmetic lead to victory. Experience endless mathematical exploration in our training mode, where the fun never stops! Engage in unlimited gameplay, tackling challenging puzzles. Need a little guidance? No problem! Access the answers whenever you need them to keep the momentum going. Ready to join the fun and showcase your math prowess?
Screenshots
Verdict
Feynman rules and Numbly are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 | Feynman rules | Numbly |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | — | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Sungjun Kim | John Cahill |
In-app purchases
Feynman rules
No in-app purchases
Numbly
No in-app purchases
