Comparison

Feynman rules vs Operators Puzzle Number Games

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

Head to head
About

Feynman rules

Features
Read full description

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.

About

Operators Puzzle Number Games

Features
Read full description

Challenge Your Brain with Numbers and Operators! This game isn't just about filling in numbers. It's a whole new puzzle experience where your calculation skills and logical thinking are put to the test. Place numbers and operators in the right spots, ensuring all calculations are correct. Think carefully as you solve each puzzle—this game is perfect for brain training. - A Brain-Training Game : It's not just about placing numbers; you'll also need to work out calculations and think logically. - Multiple Difficulty Levels : Choose from five different difficulty levels, suitable for everyone from beginners to experts. - Hint System for Help : If you get stuck, use hints to find the solution and keep progressing. - Completely Free to Play : Enjoy endless puzzles without any cost. It's perfect for passing time or for a focused mental workout. This game challenges you to combine numbers and operators like a puzzle. It’s a great way to sharpen your focus and improve your thinking skills. Download now and start your brain-training journey today!

Screenshots

Feynman rules2 screens
Operators Puzzle Number Games3 screens

Verdict

The call

Feynman rules and Operators Puzzle Number Games 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Feynman rules versus Operators Puzzle Number Games: the parameters behind the verdict, then further details
ParameterFeynman rulesOperators Puzzle Number Games
PriceFreeFree
Update frequency—Every 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size6 MB28 MB
Age rating4+4+
DeveloperSungjun KimTakatoshi Ichige

In-app purchases

None

Feynman rules

No in-app purchases

None

Operators Puzzle Number Games

No in-app purchases

Questions

Is Feynman rules free?
Feynman rules is free to download, with no in-app purchases.
Is Operators Puzzle Number Games free?
Operators Puzzle Number Games is free to download, with no in-app purchases.
Do Feynman rules or Operators Puzzle Number Games have ads?
Neither Feynman rules nor Operators Puzzle Number Games shows ads.

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