Op! +/-
Op! +/- Summary
Op! +/- is a free, with in-app purchases Android app in Educational by Onomatopée!. Released in Mar 2026 (7 months ago). It has about 31+ installs Based on AppGoblin estimates, it reaches roughly 7.00 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store last updated Mar 26, 2026
Recent activity: 5.00 installs this week (6.00 over 4 weeks) showing strong growth View trends →
Op! +/- SDKs Summary
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App Description
Op! +/- is a fun app for learning your multiplication tables +/-
Op! +/- is a fun mobile app designed by a learning specialist! This app allows children to learn their addition and subtraction tables through play, while also introducing concepts such as commutativity (3 + 1 = 1 + 3) and missing terms (12 - ? = 4). A gentle progression in difficulty level is present within each table, so children progress without even realizing it! Op! +/- is particularly useful for supporting learning in schools, presenting the tables one by one, in line with classroom teaching.
Description of Op!'s educational content:
- Addition using isolated tables from 0 to 10
- Subtraction using isolated tables from 0 to 10
- Commutativity and mathematical reversibility (3 + 1 = 1 + 3)
- Missing terms (12 - __ = 4)
Op! Op! allows both teachers and parents to further diversify their teaching approaches to solidify children's math skills, which should become automatic.
The Goal of the Op! Game
In this game-based context, the goal of the Op! app is for children to progress at their own pace, feel valued for their successes during their learning, and, yes, automate their math skills. With Op! +/-, learners are motivated to learn because they receive immediate and positive feedback after each correct answer!