Long Addition and Subtraction
By OCD
Long Addition and Subtraction is a column-based arithmetic practice tool for elementary students on iOS.
The App DNA
What makes this app unique?
The app removes the cognitive friction of gamified interfaces, allowing students to focus on the mechanics of addition and subtraction.
For Children learning foundational math and the parents or teachers supporting their practice at home.
Key features
Guided step-by-step input for ones, tens, hundreds, and thousands columns.
Real-time validation provided immediately after every user input.
Minimalist UI design excluding games and noise to focus on calculation practice.
How much does it cost?
Subscription-only model for full utility, anchored by a focus on non-gamified, repetition-based learning.
Velocity
Maintenance developmentopaqueShow more...
The app launched with version 1.0 on April 24, 2026, and has not received any subsequent updates in the 18 days since. Given the lack of activity, the development status is currently classified as maintenance. There is no evidence of feature iteration or live operations at this time.
Who built it?
OCD
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Harm OCD Recovery CourseUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Long Addition and Subtraction
How's the Education market?
Long Addition and Subtraction operates as a niche utility in the Education category, lacking the review volume of established rivals like Kindergarten Math.
Read the market outlookThe rivals identified
By Technorex Softwares
This app directly competes for the same early-elementary demographic by focusing on foundational arithmetic and skill-building exercises.
- Offers a massive library of 3,000+ reviews providing social proof that our app currently lacks.
- Includes diverse content like time-reading practice which expands the utility beyond basic addition and subtraction.
- Provides offline functionality, ensuring consistent access for children without requiring a constant internet connection.
CountItBackContender
BrainFightsContender
Stick and SplitContender
Naukado: AI Study & HomeworkContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Long Addition and Subtraction
Where is it heading?
The education market is consolidating around apps that provide both deep curriculum coverage and social proof via high review volumes. Long Addition and Subtraction's current static state leaves it exposed to rivals that offer broader utility, which will likely result in continued low visibility.
- The app has remained in maintenance mode since its April 2026 launch, missing the iterative updates required to retain users in a competitive category.
The SWOT
- Minimalist UI design minimizes cognitive load for early learners
- Structured progression model offers a focused path for arithmetic mastery
- Localized curriculum alignment for multi-digit operations could capture regional market segments
Next best moves
Ship a free-tier sampler because the current subscription-only wall prevents user acquisition → increase top-of-funnel conversion.
The counter-intuitive read
The lack of gamification is not a weakness…
Read the full takeFeature gaps
Offline mode (available in Kindergarten Math but missing here) +1
Since the last report: Market outlook downgraded from stable to declining as the app remains in maintenance mode without addressing the high barrier to entry created by its subscription-only model. The competitive assessment now explicitly identifies the lack of a free-tier sampler as a critical failure point for user acquisition.
Bottom line
The subscription-only model without a proven user base creates a high barrier to entry that prevents the app from competing with established, review-rich rivals. A free-tier sampler is required to build the initial user base necessary for organic growth.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeSources
- [1] App Store
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