Comparison

Mental Math vs VOISS

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

Head to head
About

Mental Math

This free application helps you improve your mental calculation skills. It assesses your strengths and weaknesses to create a personalized practice plan, offering tips and exercises to master mathematical concepts quickly and efficiently.

Highlights
  • Personalized learning plans
  • Identifies strengths and weaknesses
  • Teaches mental math tricks
  • Practice exercises
  • Skill assessment
Features
Read full description

Mental Math – Free Math Practice & Brain Training Doing math in your brain is a must-have skill in the modern world. Whether you're a student, a competitive exam aspirant, or just someone who wants to calculate faster, the free Mental Math app turns arithmetic into a fun daily brain training habit. Uploaded in the top free section, Mental Math uses a simple 3-step method: 1. Take a free mental math test – we gauge your strengths and weaknesses in addition, subtraction, multiplication, division, and more. 2. Get your personalized plan – based on your result, we build a practice plan just for you. 3. Master each trick – watch tip videos, then practice with questions tailored to that trick until it sticks. Works offline – no internet or account needed. Suitable for students and adults who want to sharpen their mental arithmetic speed. Download today, train your brain, and watch your mental math skills flourish. Special thanks to: incompetech.com, freepik.com, vecteezy.com

About

VOISS

Features
Read full description

Welcome to VOISS, the revolutionary application for teaching essential social skills to youth, ages 8-10, using immersive virtual reality (VR) scenarios. Developed by VOISS, LLC, our platform is backed by years of research conducted by the University of Kansas, which has been ranked #1 among Special Education graduate programs for 27 years in a row. VOISS allows users to practice critical social skills in a safe environment while allowing educators to monitor progress and access resources that help students extend social skill learning into the real-world. VOISS provides users with a solution that combines cutting edge technology, journal-published research, and experiential education domain knowledge that will help progress and excel in life.

Screenshots

Mental Math4 screens
VOISS3 screens

Verdict

The call

The clearest difference is in-app purchases: VOISS at none against Mental Math's 1. VOISS also leads on ads (none vs shown). Mental Math's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mental Math sells 1 one-off in-app purchase. VOISS asks for nothing beyond the download.

UpkeepUpdate frequency

Mental Math ships an update every 6 weeks, VOISS every 2 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Mental Math versus VOISS: the parameters behind the verdict, then further details
ParameterMental MathVOISS
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size51 MB3.2 GB
Age rating4+4+
DeveloperAmna MahmoodVOISS, LLC

In-app purchases

1 purchases

Mental Math

One-time1
  • Remove Ads$2.99
None

VOISS

No in-app purchases

Questions

Is Mental Math free?
Mental Math is free to download, with in-app purchases available.
Is VOISS free?
VOISS is free to download, with no in-app purchases.
Do Mental Math or VOISS have ads?
Mental Math shows ads; VOISS does not.
Which is updated more often, Mental Math or VOISS?
Mental Math ships an update every 6 weeks, and VOISS every 2 months. Most recently, Mental Math was updated on October 24, 2026 and VOISS on October 11, 2026.

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