Comparison

Mental Calculation vs BTV Compagnon

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

Head to head

Practice your math!

About

Mental Calculation

This game helps you practice mental arithmetic skills throughout the year. It offers a fun and engaging way to improve your math abilities.

Highlights

Mental arithmetic practice
Year-round learning
Engaging gameplay
Improves math skills

Features

Read full description

A game that accompanies you throughout the year to help you practice mental arithmetic!

About

BTV Compagnon

Features

Read full description

L'application compagnon pour la mise en miroir.

Screenshots

Mental Calculation4 screens

BTV Compagnon1 screens

Verdict

The call

The clearest difference is iOS requirement: Mental Calculation at 11.4 against BTV Compagnon's 15.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Mental Calculation ships an update every 25 months, BTV Compagnon every 18 months. The most recent releases landed on June 7, 2026 and September 14, 2026 respectively.

Scorecard1 real difference · 7 level

Mental Calculation versus BTV Compagnon: the parameters behind the verdict, then further details
Parameter	Mental Calculation	BTV Compagnon
Price	Free	Free
Positive reviews	100.0% of reviews	—
Update frequency	Every 25 months	Every 18 months — better
Ads	No	No
In-app purchases	No	No
Monetization	Free	—
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod, Mac — better
Requires iOS	11.4 — better	15.0
Further details — not scored
Size	7 MB	135 MB
Age rating	4+	4+
Developer	Frederic Bronner	Mobi.deep

In-app purchases

None

Mental Calculation

No in-app purchases

None

BTV Compagnon

No in-app purchases

Questions

Is Mental Calculation free?

Mental Calculation is free to download, with no in-app purchases.

Is BTV Compagnon free?

BTV Compagnon is free to download, with no in-app purchases.

Do Mental Calculation or BTV Compagnon have ads?

Neither Mental Calculation nor BTV Compagnon shows ads.

Which is updated more often, Mental Calculation or BTV Compagnon?

Mental Calculation ships an update every 25 months, and BTV Compagnon every 18 months. Most recently, Mental Calculation was updated on June 7, 2026 and BTV Compagnon on September 14, 2026.