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App Store Apps > Education > Op!
Op! icon

Op!

by Lussier Annie · Education · $6.99
On the App Store since June 2025 · Data updated 2026-10-14
App Store

Op! is made and published by Lussier Annie. AppBrain is an independent app data site and isn't affiliated with Lussier Annie. The app name, icon, screenshots and description belong to Lussier Annie and are shown as published on the App Store.

AppBrain's verdict

Last updated
June 24, 2025
Size
23.5 MB

User feedback

Ratings and reviews on the App Store

Comments on Op! for iOS

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Store listing

By Lussier Annie, from the App Store
Op! Screenshot 1 of 6
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Screenshots by Lussier Annie, from the the App Store listing
Description by Lussier Annie Written by the developer, not by AppBrain. Click to read.
Op! +/- is a fun mobile app designed by a remedial teacher! This app allows children to learn their addition and subtraction tables through play, while introducing concepts such as commutativity (3 + 1 = 1 + 3) and missing terms (12 - ? = 4). A gentle progression of difficulty within each table helps children advance without even realizing it! Op! +/- is especially useful to support school learning, presenting the tables one by one; consistent with classroom teaching.

Description of the educational content of Op!

- Additions by isolated tables from 0 to 10
- Subtractions by isolated tables from 0 to 10
- Commutativity and mathematical reversibility (3 + 1 = 1 + 3)
- Missing terms (12 - __ = 4)

Op! allows both educators and parents to further diversify their teaching approaches to strengthen, in children, the math learning that must become automatic.

Goal of the Op! game

In this game context, the goal of the Op! app is for the child to progress at their own pace, feel valued through their successes in learning and to automate their math calculation skills. With Op! +/- learners are motivated to learn as they are encouraged by positive and immediate feedback after each correct answer!
Official page on the App Store

Safety and technology

Found in the app by AppBrain
Price
$6.99
App size
23.5 MB
Content rating
Everyone

Technologies used by Op!

Releases

Updates seen on the App Store
Version
1.0
Launched
June 2025

No changelog data

Alternatives

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Rankings

App Store top charts

App Store Rankings for Op!

This app is not ranked

About the app and developer

About Op!

Op! is an education app developed by Lussier Annie.

What is the rating of Op!?

Op! has no ratings yet.

Is Op! free?

Op! costs $6.99. The app size is 23.52 MB. The latest version available is 1.0. The last update was on June 24, 2025.

What are the requirements for Op!?

The app has a content rating of Everyone. The app has been available on the App Store since June 2025.

Developer information for Lussier Annie

Lussier Annie

Address:

Frequently asked questions about Op!

Is Op! free?

No. Op! costs $6.99 on the App Store.

Is Op! still available?

Yes. Op! is on the App Store, and the last update we saw was on June 24, 2025.

How large is Op!?

Op! is 23.52 MB.

Is Op! suitable for children?

App Store rates the content of Op! as suitable for everyone.

Who made Op!?

Op! was developed by Lussier Annie. It is listed in the education category on the App Store.

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