Comparison

Time to Study vs Mental Math

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

Head to head
About

Time to Study

Features
Read full description

Study smarter with Time to Study - the simple and powerful app designed to help you focus on learning. Main Features: Flashcards: Craft your own digital flashcards with ease. You can input your cards with text, enhancing them using Markdown, or handwrite them, mimicking the traditional pen and paper method. Collections: Simplify the organisation of your study cards. Group your flashcards into collections that make the sense to you. Unlimited Cards & Collections: There are no restrictions on the number of cards or collections you can create. And absolutely no cost involved! Share Collections: Sharing is caring! Quizzes: Combine multiple collections or specific cards into quizzes that let you test your knowledge and track your progress over time. Study Timer: Ensure that you meet your study targets with the integrated study timer. Improvements: As you complete quizzes, you'll see recommendations for cards that may require additional attention. Statistics: Gain insight into your study habits through statistics, including the number of cards you've created, the duration of your study sessions, your average quiz scores, and more.

About

Mental Math

This app transforms mental math practice into an engaging game. Solve calculations by writing answers directly on the screen, track progress with badges and records, and enjoy a child-friendly, ad-free experience with parental controls.

Highlights
  • Finger-based answer input
  • Timed calculation challenges
  • Multiple math operations
  • Progress tracking with badges
  • Parental controls and profiles
  • Ad-free and no data collection
Features
Read full description

Calmenta is a playful mental math app to learn and practice addition, subtraction, multiplication and division. Work on times tables up to 12, take on timed challenges and write your answers straight on the screen with your finger. Made for children who want to get better at math at their own pace, Calmenta offers mental math exercises from beginner to extreme, with or without a timer. LEARN AND PRACTICE MENTAL MATH • Addition, subtraction, multiplication, division, comparisons and powers. • Times tables up to 12, one table at a time or all together. • 4 difficulty levels to progress at your own pace. • An “All” mode to mix different types of calculation. • Build your own sets by choosing the operations, the level and the number of calculations. WRITE YOUR ANSWER WITH YOUR FINGER No keyboard needed: just write your answer anywhere on the screen. Calmenta recognizes the digits directly on the device, bringing back a natural way of doing math, close to pencil and paper. 20 CALCULATIONS AGAINST THE CLOCK Take on the challenge with sets of 20 mental math exercises and try to beat your best time. Would you rather practice quietly? Turn on Training mode to play without a timer and without time pressure. PROGRESS EVERY DAY • Beat your records and earn stars. • Collect badges as you progress. • Grow your streak of days played. • Track the operations and levels you have mastered. • Keep improving, one calculation at a time. FOR PARENTS • No ads. • No account required. • Progress data stays on the device. • A parents’ area lets you follow each child’s progress. • See results by operation, mastered levels and records. • Create several child profiles for the whole family. FREE AND PREMIUM Calmenta is free to use with 3 games a day and the first 2 levels. Calmenta Premium unlocks: • Unlimited games. • All 4 difficulty levels. • Several child profiles. • Detailed parental tracking. Mental math, times tables, challenges and progress: practice every day with Calmenta. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Time to Study3 screens
Mental Math4 screens

Verdict

The call

The clearest difference is in-app purchases: Time to Study at none against Mental Math's 3. Mental Math's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, 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. Mental Math sells 3 in-app purchases, starting at $3.99 per month. Time to Study asks for nothing beyond the download.

UpkeepUpdate frequency

Time to Study ships an update every 2 months, Mental Math weekly. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
Time to Study versus Mental Math: the parameters behind the verdict, then further details
ParameterTime to StudyMental Math
PriceFreeFree
Rating—4.3 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.016.0 — better
Further details — not scored
Size4 MB73 MB
Age rating4+4+
DeveloperAndre CallusHelloProg

In-app purchases

None

Time to Study

No in-app purchases

3 purchases

Mental Math

Subscriptions2
  • Premium Monthly$3.991 Month
  • Abonnement annuel7 Days trial$9.991 Year
One-time1
  • Premium à vie$22.99

Questions

Is Time to Study free?
Time to Study is free to download, with no in-app purchases.
Is Mental Math free?
Mental Math is free to download, with in-app purchases available.
Do Time to Study or Mental Math have ads?
Time to Study shows ads; Mental Math does not.
Which is updated more often, Time to Study or Mental Math?
Time to Study ships an update every 2 months, and Mental Math weekly. Most recently, Time to Study was updated on October 9, 2026 and Mental Math on October 15, 2026.

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