Math Flash Cards vs OpoCentro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Math Flash Cards
This app offers fast, focused sessions to improve mental math skills. Users can practice various operations, customize difficulty, and track their progress with instant feedback. It's designed for daily practice to build number fluency and confidence.
- Practice addition, subtraction, multiplication, division
- Customizable difficulty levels
- Keypad or multiple choice input
- Instant feedback and session summaries
- Progress tracking over time
- Offline functionality
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Looking for a simple way to practice math, improve your speed, and build real fluency with numbers? MathX helps you train your mental math skills with fast practice sessions. Choose the operation you want to work on, adjust the difficulty, and solve questions using a distraction-free interface. Track your performance over time and see how your accuracy and speed improve with every session. MathX is perfect for daily practice, sharpening calculation speed, preparing for exams, or building confidence with numbers at any level. Whether you want quick drills or more challenging sessions, MathX adapts to your pace. Key Features: - Practice addition, subtraction, multiplication, division, or mixed operations - Customize difficulty by adjusting number ranges - Choose how many questions per session - Answer using keypad input or multiple choice - Clean, calculator-style interface for fast input - Instant feedback after each answer - Session summary with score and time - Track your overall accuracy and progress over time - Fast, focused sessions designed for daily practice - Results stay secure on your device (100% offline) __________ MathX Pro: Unlock unlimited practice and access to all difficulty levels. Choose a monthly or annual subscription, or unlock Pro forever with a one-time Lifetime purchase. You can manage or cancel your subscriptions in your Apple Account settings. Terms of Use: https://sandratra.com/legal/terms
OpoCentro
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PREPÁRATE PARA MOSSOS D’ESQUADRA OpoCentro reúne práctica, estudio y seguimiento para la oposición de escala básica. MÁS DE 5.000 PREGUNTAS • 5.498 preguntas publicadas, cada una con explicación y fuente oficial. • Tests por tema, concepto, errores, repasos y preguntas guardadas. PSICOTÉCNICOS • 2.000 ejercicios: 5 aptitudes, 400 por aptitud y 20 familias, en castellano y catalán. • Entrena por aptitud o combina las cinco en una sesión mixta, con tiempo y ejercicios visuales. TEMARIO Y CLASES • 21 temas, 108 subtemas, 716 conceptos y 109 clases. • Busca, consulta fuentes, guarda marcadores y conserva tu progreso. SIMULACROS Y PRUEBAS • Simulacro completo de 30 o 35 preguntas y mini simulacro Free de 10 o 12. • 500 preguntas de exámenes anteriores, 16 modelos y 9 convocatorias. • Catalán: 400 preguntas en 5 áreas. • Práctica psicoprofesional: 64 preguntas, 8 áreas y 8 situaciones. • Información de convocatoria y preparación de pruebas físicas. FREE Y PRO • Free incluye 5 respuestas al día y un único mini simulacro por instalación, sin anuncios. • Pro amplía el acceso a la práctica y los simulacros, con análisis del progreso y dominio por temas y conceptos. DISPONIBLE EN CASTELLANO Y CATALÁN OpoCentro es una herramienta independiente de preparación. No está afiliada ni respaldada por Mossos d’Esquadra, la Generalitat de Catalunya ni ningún organismo oficial. Las fuentes oficiales son la referencia vinculante para requisitos, fechas y temario. Condiciones de uso (EULA estándar de Apple): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: OpoCentro at every 4 days against Math Flash Cards's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Math Flash Cards sells 6 in-app purchases, starting at $2.99 per month and OpoCentro sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Math Flash Cards ships an update monthly, OpoCentro every 4 days. The most recent releases landed on October 16, 2026 and October 21, 2026 respectively.
| Parameter | Math Flash Cards | OpoCentro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 3 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Sandratra Razafindralambo | Rasmus Lantz |
In-app purchases
Math Flash Cards
- MathX Pro (Monthly)$2.991 Month
- MathX Pro (Annual)$17.991 Year
- Starter Upgrade$7.99
- Discounted Upgrade$9.99
- Pro Upgrade$12.99
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- MathX Pro (Lifetime)$24.99
OpoCentro
- OpoCentro Pro mensual$6.991 Month
- OpoCentro Pro trimestral$17.993 Months
- OpoCentro Pro semestral$29.996 Months
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- OpoCentro Pro anual$49.991 Year
Questions
Is Math Flash Cards free?
Is OpoCentro free?
Do Math Flash Cards or OpoCentro have ads?
Which is updated more often, Math Flash Cards or OpoCentro?
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