(Open Source) Mental Math
(Open Source) Mental Math is a free, open-source arithmetic trainer for students and individuals, featuring timed drills and a library of mental math tricks on iOS.
The App DNA
What makes this app unique?
The app removes the connectivity and monetization friction of standard education tools, though reported calculation errors currently prevent it from serving its core arithmetic-training function.
For Students and individuals looking to improve mental arithmetic speed and accuracy through structured practice.
What does it look like?
Key features
Daily 60-second challenges and preset sprints with best score tracking to reinforce habit loops.
Step-by-step arithmetic walkthroughs that provide utility beyond simple drills.
All exercises and progress data run locally, removing connectivity dependency and privacy concerns.
How much does it cost?
The app operates as a completely free, open-source tool with no monetization gates.
Velocity
Maintenance developmentopaqueShow more...
The app currently operates at a maintenance cadence, with only one release recorded in the analyzed window. This single release occurred 54 days ago, indicating a lack of active feature development or recurring content updates. The development trend is currently stagnant, with no evidence of new functionality or live operations to drive engagement. Future updates remain infrequent based on the current release pattern.
Who built it?
AHMET EMRE DEDELER
3 apps tracked · Education
ReaderPro
Lingo Lessons: LanguagesUser Sentiment
What do users think recently?
The recent review mood reads upset.
How are ratings & reviews evolving?
What users say, by theme
- The application provides inaccurate information during use, failing to meet basic functional expectations for users
1 of 1 recent reviews analyzed · limited sample
Read the full review analysisCompetition
Competitive landscape for (Open Source) Mental Math
How's the Education market?
(Open Source) Mental Math occupies a zero-cost, open-source niche in the Education category. The current 3.0 rating across 2 reviews suggests significant quality volatility, as the latest feedback highlights critical functional failures.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for (Open Source) Mental Math
Where is it heading?
The education-drill category is consolidating around tools that guarantee output accuracy, leaving (Open Source) Mental Math exposed. Unless the core arithmetic logic is audited, the app will continue to lose the trust necessary to retain its user base.
- Reported calculation errors in the latest release erode user trust, which directly threatens the app's retention potential.
The SWOT
- Offline-first architecture ensures consistent access without connectivity dependency
- Open-source transparency allows community-driven logic audits to resolve accuracy issues
Next best moves
Audit core math logic because users report incorrect answers → restore baseline functional trust
The counter-intuitive read
The open-source nature is a liability here…
Read the full takeSince the last report: Review volume doubled from 1 to 2, shifting the market position from a single-point failure to a pattern of quality volatility. The core product remains in a maintenance state with no functional improvements to address the reported calculation errors.
Bottom line
The current arithmetic inaccuracies invalidate the app's core utility, and resolving these logic errors is the only path to stabilizing the user base.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is (Open Source) Mental Math free to use?
Does (Open Source) Mental Math require an internet connection?
Is (Open Source) Mental Math accurate for math practice?
Sources
- [1] App Store
Report last updated