Version history
Opposite-Change Addition
29
ASO score
Text
29/100
Reviews
0/100
Graphic
60/100
Other
0/100
App Rating
5
Votes
1
App Age
15y 6m
Last Update
Jun 15, 2020
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
0
|
4.6
|
|
|
Number of Ratings (Voted)
|
0
|
1M
|
|
|
App Age
|
15y 6m
|
8y 3m
|
+88%
|
|
Price
|
$4
|
$1
|
+698%
|
|
In-app Purchases Price
|
$0
|
$51
|
|
|
Update Frequency
|
2006d
|
20d
|
+9 870%
|
|
Title Length
|
24
|
27
|
-11%
|
|
Subtitle Length
|
0
|
28
|
|
|
Description Length
|
1 378
|
3 006
|
-54%
|
|
Number of Screenshots
|
1170
|
1313
|
-11
%
|
|
Size
|
0MB
|
236MB
|
|
Category Ranking in United States
7 days
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Last 90 days
Last 180 days
Last year
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No results were found!
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| Top | Dec 04, 2025 | Dec 11, 2025 |
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| Top | Dec 04, 2025 | Dec 11, 2025 |
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| Top | Dec 04, 2025 | Dec 11, 2025 |
|---|---|---|
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No results were found!
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Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
24
of 30
)
Opposite-Change Addition
Subtitle
(
Characters:
0
of 30
)
Description
(
Characters:
1378
of 4000
)
In the Opposite-Change Addition app the user can keep adding a number to one addend and subtract the same number from the other addend until the addition problem can be solved easily.
The opposite-change rules states that if you subtract a number from one addend and add the same number to the other addend, the sum remains the same. An addition problem 267 + 289 is easier to solve when it has been changed into 256 + 300.
Features:
- The numbers can have up to 3 digits
- You can set your own problems
- Three different themes
- Native interfaces for iPhone, and iPad
Other iDevBooks math apps
iDevBooks math apps have been reviewed and endorsed by Wired.com, Common Sense Media, and other respected sites and organizations.
Some of the over 40 other iDevBooks math apps are Visual Multiplication Table, Decimal Rounding, Whole Number Rounding, Column Subtraction, Column Addition, Long Division, Long Multiplication, Lattice Multiplication, Fraction Math, Partial Differences Subtraction, Partial Quotients Division, Partial Sums Addition, etc.
Feedback and requests for new features
New ideas to make this app better are welcome. Please visit idevbooks.com to give feedback.
Privacy
This app has no ads or in-app purchases and it does not transmit any data during the operation of the app. This app also does not contain any links to other apps or the web.}
Read more
Other
Additional Information
😢
Deleted from App Store
| Rating: | |
| Voted: | 1 |
| App Store Link: | |
| Price: | 3.99 $ |
| Website: | |
| Email: | - |
| Privacy Policy: | - |
| Categories: | Education |
| Size: | - |
| App Age: | 15 years 6 months |
| Release Date: | Jun 10, 2010 |
| Last Update: | Jun 15, 2020 |
| Version: | 3.7 |
Version history
3.7
Jun 15, 2020
Bug fixes and Performance enhancements
6.0
Oct 16, 2019
- support for iOS 13
- new interface with support for latest iPad and iPhone models
- new theme colors
