Comparison

Equation = vs Rail Shuffle 2

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

Head to head

Over the Edge

About

Equation =

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Equation: Math Puzzle Game Challenge your mind with this addictive math puzzle game. Tap numbers and operators to create valid equations. Simple yet engaging, Equation helps sharpen your mental math skills while having fun. Perfect for all ages and math enthusiasts. Download now and start solving! Key Features: • Intuitive tap-to-solve gameplay • Improve mental math skills • Suitable for all ages • Clean, minimalist design Exercise your brain with Equation today!

About

Rail Shuffle 2

Features

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A puzzle game with a twist. Guide mining carts along railway tracks to pick up money bags.

Screenshots

Equation =4 screens

Rail Shuffle 24 screens

Verdict

The call

The clearest difference is ads: Rail Shuffle 2 at none against Equation ='s shown. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Equation = ships an update every 5 months, Rail Shuffle 2 every 9 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

Scorecard1 real difference · 5 level

Equation = versus Rail Shuffle 2: the parameters behind the verdict, then further details
Parameter	Equation =	Rail Shuffle 2
Price	Free	Free
Update frequency	Every 5 months — better	Every 9 months
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	13.0	12.0 — better
Further details — not scored
Size	91 MB	57 MB
Age rating	4+	9+
Developer	Beijing Ningdom Technology Co., Ltd.	Eweguo AB

In-app purchases

None

Equation =

No in-app purchases

None

Rail Shuffle 2

No in-app purchases

Questions

Is Equation = free?

Equation = is free to download, with no in-app purchases.

Is Rail Shuffle 2 free?

Rail Shuffle 2 is free to download, with no in-app purchases.

Do Equation = or Rail Shuffle 2 have ads?

Equation = shows ads; Rail Shuffle 2 does not.

Which is updated more often, Equation = or Rail Shuffle 2?

Equation = ships an update every 5 months, and Rail Shuffle 2 every 9 months. Most recently, Equation = was updated on October 6, 2026 and Rail Shuffle 2 on October 3, 2026.