Comparison

Simple Mental Math Practice vs School Letters

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

Head to head
About

Simple Mental Math Practice

Features
Read full description

Looking for a math practice app that's both simple and effective? Simple Mental Math Practice is your perfect brain training companion! Whether you're a student looking to improve your calculation skills or an adult wanting to keep your mind sharp, this app offers everything you need for mental math development. KEY FEATURES: β€’ Four basic operations: Addition, Subtraction, Multiplication, and Division β€’ Flexible difficulty levels: Choose from 1 to 5 digit numbers for customized challenges β€’ Two exciting game modes: - Practice Mode: Solve a set number of problems at your own pace - Time Attack: Challenge yourself to solve as many problems as possible in just 60 seconds β€’ Detailed statistics tracking: Monitor your progress with history records, average scores, and personal bests β€’ Clean, distraction-free interface designed for focus and learning PERFECT FOR: β€’ Students improving their mental calculation skills β€’ Adults maintaining mental sharpness β€’ Teachers looking for classroom math practice tools β€’ Anyone wanting to exercise their brain with quick math challenges CUSTOMIZATION OPTIONS: β€’ Select specific operations or mix them all together β€’ Adjust difficulty by choosing number of digits (1-5) β€’ Track your improvement over time with detailed statistics β€’ Practice at your own pace or race against the clock WHY CHOOSE SIMPLE MENTAL MATH PRACTICE? Our app is designed with simplicity and effectiveness in mind. No complicated menus or unnecessary features - just pure math practice that helps you improve your mental calculation speed and accuracy. The clean interface ensures you can focus on what matters: solving math problems and tracking your progress. Download Simple Mental Math Practice today and start your journey to mental math mastery!

About

School Letters

This app offers an engaging way for children to learn writing letters and numbers. It features interactive tracing, real-time feedback on accuracy, and progress tracking. Kids can collect energy, unlock achievements, and export their work as PDFs.

Highlights
  • Interactive letter and number tracing
  • Real-time accuracy evaluation
  • Drawing history and playback
  • PDF export of written letters
  • Achievement system for motivation
  • Multiple font choices
  • Progress tracking with scores and stars
Features
Read full description

Welcome to School Letters (Buchstabenland) – the ultimate educational app for kids to discover writing letters and numbers through play! School Letters turns learning into an exciting adventure. Children can trace letters and numbers directly on the screen with their finger or a stylus. Our intelligent evaluation technology analyzes accuracy in real-time and provides instant feedback. KEY FEATURES: β€’ Interactive Learning: Draw 26 uppercase letters (A-Z), 26 lowercase letters (a-z), and 10 numbers (0-9). β€’ Smart Evaluation: Get a score of 0-100% for every attempt. β€’ Drawing History & Playback: All drawings are automatically saved. View your progress and replay every stroke step by step! β€’ PDF Export: Download written letters as PDF and share them with family and friends. β€’ Pure Motivation: Collect energy for good performance. β€’ Variety: Choose from 12 different fonts like Poppins, Playwrite Schulausgangsschrift, Playwrite Grundschrift, and more. β€’ Achievements: Unlock trophies for perfect scores, milestones, and diligence. β€’ Progress Tracking: Keep track with star ratings and best scores. WHY SCHOOL LETTERS? β€’ Child-Friendly Design: Colorful, intuitive, and easy to use. β€’ Educational Value: Promotes fine motor skills and writing understanding. β€’ Ad-Free & Safe: A secure environment for your child. Download School Letters now and join your child on the journey to becoming a writing pro!

Screenshots

Simple Mental Math Practice4 screens
School Letters4 screens

Verdict

The call

The clearest difference is price: Simple Mental Math Practice at Free against School Letters's $8.99. School Letters's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Simple Mental Math Practice is free to download; School Letters costs $8.99 up front. Simple Mental Math Practice sells 1 one-off in-app purchase. School Letters asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Mental Math Practice ships an update every 3 days, School Letters every 6 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

Scorecard3 real differences Β· 5 level
Simple Mental Math Practice versus School Letters: the parameters behind the verdict, then further details
ParameterSimple Mental Math PracticeSchool Letters
PriceFree β€” better$8.99
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 3 days β€” betterEvery 6 days
AdsYesNo β€” better
In-app purchasesYesNo β€” better
Monetizationβ€”Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 β€” better14.0
Further details β€” not scored
Size36 MB65 MB
Age rating4+4+
DeveloperENDEVLABMartin Seidel

In-app purchases

1 purchases

Simple Mental Math Practice

One-time1
  • Lifetime Premium$6.99
None

School Letters

No in-app purchases

Questions

Is Simple Mental Math Practice free?
Simple Mental Math Practice is free to download, with in-app purchases available.
Is School Letters free?
School Letters costs $8.99, with no in-app purchases.
Do Simple Mental Math Practice or School Letters have ads?
Simple Mental Math Practice shows ads; School Letters does not.
Which is updated more often, Simple Mental Math Practice or School Letters?
Simple Mental Math Practice ships an update every 3 days, and School Letters every 6 days. Most recently, Simple Mental Math Practice was updated on September 10, 2026 and School Letters on September 9, 2026.

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