Comparison

Coordinate Challenge vs Subtraction with regrouping

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

Head to head
About

Coordinate Challenge

Learn and practice using the X/Y coordinate system with this engaging educational game. Compete against friends or challenge yourself in timed modes. It's a fun way to master mathematical concepts.

Highlights
  • X/Y coordinate system practice
  • Timed challenges
  • Multiplayer mode
  • Solo play
  • Equation solving
Features
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Race the clock, or concentrate on the moves, against your friends or by yourself. So many ways to try on solve the equation, use the X/Y Coordinate system to have some fun while learning.

About

Subtraction with regrouping

Features
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Subtraction with Eggs app provide the simplest way to learn subtraction by regrouping,it can help kids to know how to borrow in subtraction , this app use hatch out birds to help kids understand subtraction and this app dynamic to generate subtraction's questions, so you can get a lot of practice questions. There are 3 functions in this app: Function 1-> Subtract one-digit numbers - up to 10 Function 2->Subtract two-digit numbers - with regrouping Function 3->Subtraction practices game (Play it,tilt to move left or right.) The function 2 can help kids learn subtraction with regrouping more easy. For example: 82-27 =? you can follow the steps to do subtraction by regrouping: 1. 2 is less than 7, so we need to regroup 1 ten as 10 ones, drag 1 ten to ones’ box. 2. After regroup, there are 7 tens and 12 ones. 3. Click 7 eggs to hatch out 7 birds 4. Click 2 tens eggs to hatch out 20 birds 5. Check the remaining number of eggs, click the right answer's button It has 3 levels in the function 2,you can click the star button to switch levels: 1 star level : subtraction that don't need regrouping 2 stars level: 2 digits minus 1 digit and need regrouping 3 stars level: 2 digits minus 2 digits and need regrouping If you are interested in this app, you can watch the following video: https://www.youtube.com/watch?v=2MVMSE1kIyk As a MOMs with Apps member,we follow the "Know What's inside" best practices for kids' apps. http://momswithapps.com/

Verdict

The call

Coordinate Challenge and Subtraction with regrouping are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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

Coordinate Challenge costs $0.99 and Subtraction with regrouping $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Coordinate Challenge ships an update every 39 months, Subtraction with regrouping every 41 months. The most recent releases landed on June 25, 2026 and October 19, 2026 respectively.

ScorecardNo meaningful differences
Coordinate Challenge versus Subtraction with regrouping: the parameters behind the verdict, then further details
ParameterCoordinate ChallengeSubtraction with regrouping
Price$0.99$0.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 39 months — betterEvery 41 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPad
Requires iOS15.0 — better15.6
Further details — not scored
Size5 MB7 MB
Age rating4+4+
DeveloperImagic PlaceRed Hong

In-app purchases

None

Coordinate Challenge

No in-app purchases

None

Subtraction with regrouping

No in-app purchases

Questions

Is Coordinate Challenge free?
Coordinate Challenge costs $0.99, with no in-app purchases.
Is Subtraction with regrouping free?
Subtraction with regrouping costs $0.99, with no in-app purchases.
Do Coordinate Challenge or Subtraction with regrouping have ads?
Neither Coordinate Challenge nor Subtraction with regrouping shows ads.
Which is updated more often, Coordinate Challenge or Subtraction with regrouping?
Coordinate Challenge ships an update every 39 months, and Subtraction with regrouping every 41 months. Most recently, Coordinate Challenge was updated on June 25, 2026 and Subtraction with regrouping on October 19, 2026.

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