Comparison

Memo vs Letrikis

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Memo

Engage in daily 5-minute brain training exercises grounded in neurobiology. Improve memory, focus, and logic with a variety of games and mindfulness sessions. Track your progress and compete globally.

Highlights
  • 5-minute daily brain workouts
  • Neurobiology-based exercises
  • Memory, math, and logic games
  • Mindfulness and breathing sessions
  • Progress tracking charts
  • Global leaderboard competition
  • Apple Health integration
Features
Read full description

Daily fitness for your brain — grounded in neurobiology research! Memo shows how short, 5-minute daily practices develop your brain's capacity across working memory, mental math, Sudoku, 2D & 3D geometry, and selective attention. Memo works in two complementary directions — active Brain Training and restorative Mindfulness sessions — giving you a clean, intuitive interface to track your cognitive progress over time, plus an atmosphere of friendly competition on the Global Leaderboard. Why Choose Memo? Grounded in Neurobiology & Cognitive Science Every exercise in Memo is built on established neurocognitive research — from visuospatial working memory and Stroop inhibitory control to mental rotation, deductive reasoning, and paced autonomic breathing. Short, consistent 5-minute daily workouts stimulate cognitive agility without overwhelm. 6-Step Daily Brain Challenge Start your day with a curated 5-minute brain fitness workout combining word recall, arithmetic, visual equations, angle geometry, and 3D spatial cube counting. Complete the Daily Challenge to build your calendar streak and compare streaks on the Leaderboard. Direction 1 — 8 Cognitive Brain Training Games: - Mental Math & Visual Equations (Level 1 & Level 2) - Master rapid arithmetic, number bonds, multi-step chains, and visual algebraic icon puzzles. - Geometry / GeoLogic (Level 1 & Level 2) - Solve interactive 2D triangle and angle-chaser puzzles plus 3D orthographic cube projections with step-by-step hints. - Sudoku (6x6 & 9x9) - Train deductive logic with fast 2x3 boards or classic 3x3 number grids. - Chimp Test - Challenge your working memory and spatial recall inspired by the famous primate cognition benchmark. - Dots Link - Connect matching color pairs across the grid with smooth continuous paths without crossing lines. - Brain Speed - Test and improve your visual reaction time, inhibitory control, and decision speed. - Mind Flip - Sharpen selective attention, spatial updating, and cognitive flexibility. - Word Memory - Strengthen short-term verbal recall by memorizing word lists under time pressure. Direction 2 — Mindfulness Sessions, Sleep Tracker & Apple Health Peak cognitive fitness goes hand in hand with mental recovery. Use guided Breathing sessions (4-4-4 Box Breathing and 4-7-8 Relaxation), the Do Nothing stillness timer, and the Activity & Sleep Tracker with optional Apple Health synchronization to log Mindful Minutes and Sleep Analysis (including Awake and Asleep stages). Convenient Progress Tracking & Friendly Competition - Intuitive Progress Charts - Easily track your daily growth in a clean visual UI comparing your current scores, speed, and accuracy against your personal First Try baseline. - Friendly Competition on the Global Leaderboard - Enjoy a welcoming, motivating atmosphere of friendly competition across Daily, Weekly, and All-Time rankings for every game and difficulty level. Key Features at a Glance: - Short 5-minute daily brain fitness workouts grounded in neurobiology - Dual-direction system: 8 Brain Training games + Mindfulness & Sleep recovery - Apple Health integration for Sleep Analysis and Mindful Minutes - Clean, intuitive UI for visual progress tracking against your personal baseline - Global Leaderboard fostering friendly daily competition and streak sharing - Available in 8 languages Download Memo now and start your first 5-minute brain fitness workout! -- https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Letrikis

Features
Read full description

Letrikis son juegos de letras y números para niños de 3 a 12 años, pensados para jugar un rato corto y dejarlo sin dramas. TRECE JUEGOS • Sopa de letras, con nueve temas por edad: animales, la granja, el zoo, el mar, la ciudad, el espacio, inventos y más. • Memoria: parejas de dibujos para los peques, dibujo y palabra para quien ya lee. • Trazar letras: se sigue la letra con el dedo, desde el punto verde y en el orden correcto. • Ordenar letras para formar la palabra, con dibujo y voz de ayuda. • Colores en inglés: el color llena la pantalla y se oye su nombre pronunciado. • Matemáticas: sumas y restas con puntos que contar, tablas y divisiones que siempre salen exactas. • Sílabas: se da una palmada por sílaba y se cuenta cuántas tiene la palabra. • Números: los peques cuentan dibujos; los mayores descubren qué número falta en la serie. • Rimas: se oye una palabra y se busca la que acaba igual. • Primera letra: se mira un dibujo y se toca la letra por la que empieza. • Palmas: una palmada por cada golpe de la palabra, sin decir antes cuántos son. • Series: dibujos que se repiten con una regla, y hay que adivinar cuál falta. • Sopa de números: números de varias cifras escondidos entre las cifras de una cuadrícula. TRES EDADES, TRES JUEGOS DISTINTOS No es el mismo juego más difícil. De 3 a 5 años se juega con dibujos grandes y voz, sin leer. De 6 a 8 se lee y se escribe. De 9 a 12 hay reloj, retos y récords. CON VOZ, Y EXPLICADO La voz es de España. Si el móvil tiene más de una voz española instalada, se puede elegir de chica o de chico. Cada juego se explica hablando la primera vez que se entra, así que un niño que aún no lee puede empezar solo. Las instrucciones le llaman por su nombre, y el altavoz de la esquina silencia la app de un toque. PARA LOS PADRES • Un perfil para cada niño, con su nombre y su dibujo. • Límite de tiempo al día, y la partida se cierra sola con suavidad. • Instrucciones habladas que se pueden apagar. • Zona de padres detrás de un candado con una operación que un niño pequeño no resuelve. SIN ANUNCIOS Y SIN DATOS No hay publicidad de ningún tipo ni registro. El nombre del perfil, el dibujo, las estrellas y las pegatinas se quedan en el dispositivo: no se envían a ningún servidor, ni nuestro ni de terceros. El premio es un álbum de 55 pegatinas que se van ganando al terminar cada juego. Nunca se castiga un fallo: se vuelve a intentar y ya está. Letrikis se juega entero gratis. Más adelante habrá un extra opcional, Letrikis Plus, para quien quiera apoyar el proyecto.

Screenshots

Memo4 screens
Letrikis4 screens

Verdict

The call

The clearest difference is in-app purchases: Letrikis at none against Memo's 10. Memo's advantage is update cadence (every 3 days vs every 2 weeks). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Memo sells 10 in-app purchases, starting at $2.99 per 7 days. Letrikis asks for nothing beyond the download.

UpkeepUpdate frequency

Memo ships an update every 3 days, Letrikis every 2 weeks. The most recent releases landed on November 7, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Memo versus Letrikis: the parameters behind the verdict, then further details
ParameterMemoLetrikis
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.416.4
Further details — not scored
Size58 MB41 MB
Age rating4+4+
DeveloperSiarhei KellerJosep Sinfreu Castello

In-app purchases

10 purchases

Memo

Subscriptions9
  • Memo Premium Weekly$2.997 Days
  • Memo Premium Weekly$3.997 Days
  • Memo Premium +7d Free7 Days trial$4.991 Month
Show 6 more
  • Memo Premium +30d Free1 Month trial$4.991 Month
  • Memo Premium Monthly$6.991 Month
  • Memo Premium Annual3 Days trial$29.991 Year
  • Memo Premium +7d Free7 Days trial$29.991 Year
  • Memo Premium +30d Free1 Month trial$29.991 Year
  • Memo Premium +30d Free1 Month trial$79.991 Year
One-time1
  • Memo Premium Lifetime$39.99
None

Letrikis

No in-app purchases

Questions

Is Memo free?
Memo is free to download, with in-app purchases available.
Is Letrikis free?
Letrikis is free to download, with no in-app purchases.
Do Memo or Letrikis have ads?
Neither Memo nor Letrikis shows ads.
Which is updated more often, Memo or Letrikis?
Memo ships an update every 3 days, and Letrikis every 2 weeks. Most recently, Memo was updated on November 7, 2026 and Letrikis on October 24, 2026.

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