Comparison

Math Formulas vs Smart Diary Edu

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

Head to head
About

Math Formulas

Access over 100 high school level math formulas covering algebra, geometry, calculus, trigonometry, probability, and statistics. Includes examples for clarity and a search function to quickly find needed information. Ideal for students, teachers, and math enthusiasts.

Highlights
  • 100+ math formulas
  • Algebra, geometry, calculus, trig
  • Probability and statistics
  • Formulas with examples
  • Powerful search function
  • Favorite formulas
Features
Read full description

Over 100 math formulas at high school level. The covered areas include algebra, geometry, calculus, trigonometry, probability and statistics. Most of the formulas come with examples for better understanding. Use the powerful search function to find what you are looking for and mark your favorites for easier access. A convenient tool for students and teachers and a handy reference for anyone interested in math! Reviews “Handy for reminding you of math formulas on the fly” - Wired GeekDad “A very user friendly educational app” – Applicable2u “A great app for higher level math” – iPad Pilot Project, School District of Palm Beach County

About

Smart Diary Edu

This app helps students manage their academic life by organizing schedules, tracking assignments, and monitoring grades. It offers tools for time management, goal setting, and note-taking, with features like customizable timetables and reminders.

Highlights
  • Add homework, tests, and notes
  • Manage weekly timetable
  • Track grades and set goals
  • Time management organizer
  • Task reminders and customization
  • Notes with text formatting
  • iCloud backup
Features
Read full description

Smart Diary Edu is dedicated to educational institutes, all the Premium features are included in the app. For personal use we suggest you to download the normal version of "Smart Diary - Student Planner" for a better experience. Smart Diary is a complete student planner / school diary, with this application you can: • add homework, tests and free notes on the Diary • manage your weekly timetable • manage your grades, set goals • use the Organizer, a tool that help you managing the time dedicated to tasks Here are all the functions. 1. Subjects and Timetable • For every subject you can choose a color, add the Professor, and other notes • Set the timetable selecting the subject and the lesson type. You can customize the timetable changing the maximum hours, the end of the week, set the hour in the 'hour:minute' format • Multiple Timetables • Print your weekly timetable 2. Tasks and Absences • Mark a task as important or done, set the required time, set a reminder, associate an emoji • View your tasks in different ways; classic diary with pages or list grouped by day • Reorder the tasks to better organize the Diary, just tap and hold on a task • Mark absences. Count absences by type and period • Memos section 3. Time Management • Organizer - a powerful but simple tool to schedule tasks, it allow you to specify the required time and schedule the task over multiple days. Calculation of the daily work, swipe and consult the days with the bar chart • Time - a pure time management tool. Create work session with customized countdowns 4. Grades Management • Multiple evaluation systems supported (numeric 0 - 10, alphabetical A - F, etc) • Grades chart and filter by grade type / period • Check your general average 5. Goals • Set a grade as a goal, by subject and grade type • Calculate the required grade to reach your goal or the sufficiency 6. Notes • Dedicated editor to write notes • Text formatting in bold, italic, highlighted • History of the previous text reviews 7. General features and customization • Set a reminder notification for tasks, you can select a rapid reminder or a specific date • 3D Touch Shortcut by pressing deeply on the app icon • Customize the app appearance with themes 8. Widget and backup • Widget with tasks overview for the following day, timetable widget • Data and Preferences Backup on iCloud 9. Apple Watch • Add new tasks dictating in natural language • View tasks and timetable • Mark a task as done

Screenshots

Math Formulas4 screens
Smart Diary Edu4 screens

Verdict

The call

The clearest difference is review sentiment: Smart Diary Edu at 100% against Math Formulas's 69%. Smart Diary Edu also leads on device support (4 vs 2) and iOS requirement (12.0 vs 17.6). Math Formulas's advantage is update cadence (monthly vs every 2 months) and price ($0.99 vs $2.99). On 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

Math Formulas costs $0.99 and Smart Diary Edu $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Math Formulas ships an update monthly, Smart Diary Edu every 2 months. The most recent releases landed on November 13, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 4 level
Math Formulas versus Smart Diary Edu: the parameters behind the verdict, then further details
ParameterMath FormulasSmart Diary Edu
Price$0.99 — better$2.99
Rating4.1 (11 ratings) — better—
Positive reviews69.0% of reviews100.0% of reviews — better
Number of ratings11 — better—
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.612.0 — better
Further details — not scored
Size18 MB23 MB
Age rating4+4+
DeveloperOddrobo Software ABMatteo D'Ignazio

Customer experience

Math Formulas

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews129 reviews
Positive69.0%
Neutral9.3%
Negative21.7%

Smart Diary Edu

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Math Formulas

No in-app purchases

None

Smart Diary Edu

No in-app purchases

Questions

Is Math Formulas free?
Math Formulas costs $0.99, with no in-app purchases.
Is Smart Diary Edu free?
Smart Diary Edu costs $2.99, with no in-app purchases.
Do Math Formulas or Smart Diary Edu have ads?
Neither Math Formulas nor Smart Diary Edu shows ads.
Which is updated more often, Math Formulas or Smart Diary Edu?
Math Formulas ships an update monthly, and Smart Diary Edu every 2 months. Most recently, Math Formulas was updated on November 13, 2026 and Smart Diary Edu on November 2, 2026.

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