Comparison

Tutorius vs DrPhos' Molar Mass

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

Head to head
About

Tutorius

This app provides personalized math tutoring for the SAT and ACT, updated for the Digital SAT. It features over 450 unique practice questions, interactive lessons, and progress tracking to make test preparation engaging and effective.

Highlights
  • 450+ unique practice questions
  • Curriculum with 15 math units
  • Topic-specific practice tests
  • Formula and rule matching game
  • Detailed performance statistics
  • Gamified progress tracking
Features
Read full description

Tutorius Math is your personal SAT/ACT math tutor right in your pocket, updated for the DSAT (Digital SAT). It offers all of the tools you need to succeed on the SAT and ACT math sections that you can't find anywhere else. Tutorius was designed by expert math tutors with over 30 years experience tutoring for standardized tests. It offers over 450 unique questions, modeled off of real SAT and ACT questions. It turns daunting SAT math prep into an interactive, engaging, and highly effective study process. Our unique Curriculum Section features 15 comprehensive units designed to teach you math concepts, strategies, and skills necessary for the SAT. Each unit includes tailored questions, most with two distinct solutions - a traditional mathematical solution and a time-saving expert tutoring approach. Our Practice areas lets you focus on specific topics you need to improve or challenge yourself with a randomly generated practice test. It's SAT/ACT prep that adapts to your needs! Our games area has a unique matching game to solidify required knowledge of formulas and rules. In the Stats Section, track your progress with precision. Get a detailed breakdown of your performance by topic and difficulty, and watch your scores improve over time. But learning doesn't have to be all work and no play! In the Profile Section, we've gamified SAT math prep. Earn points, unlock badges, and level up as you master more topics and answer more questions correctly. Start your journey towards SAT Math mastery today. Download Tutorius Math and turn SAT/ACT prep from a chore into an adventure!

About

DrPhos' Molar Mass

Instantly calculate the molar mass of any chemical formula, supporting complex structures with subscripts and parentheses. It also provides an elemental breakdown by mass and percentage, aiding in problem-solving and learning.

Highlights
  • Calculates molar mass from chemical formulas
  • Supports parentheses and polyatomic ions
  • Automatic subscript formatting
  • Elemental breakdown by mass and percentage
  • Valuable for high school and college chemistry
Features
Read full description

Calculate Molar Mass and Elemental Composition Instantly The DrPhos Molar Mass Calculator is a fast, reliable tool for calculating the molar mass of any chemical formula. Whether you’re working with simple compounds or complex polyatomic ions, the app handles subscripts, parentheses, and nested groups with ease. In addition to total molar mass, the app performs elemental analysis, showing the contribution of each element to the total mass—making it a valuable tool for both problem-solving and learning. Features: • Calculates molar mass from chemical formulas • Supports parentheses and polyatomic ions • Automatic subscript formatting and validation • Elemental breakdown by mass and percentage • Great for high school, AP Chemistry, and college-level courses Unlock even more tools in the DrPhos GenChem Helper suite, including: • Reaction Balancer • Significant Figures Counter • Ionic Compound Builder • General Chemistry Naming Tool • Stoichiometry Solver • pH Calculator • Integrated Rate Law Calculator • Solution Concentration Calculator • Scientific Calculator • Quadratic Equation Solver Each tool is available individually for $0.99, or unlock them all with the full GenChem Helper for $9.99.

Screenshots

Tutorius4 screens
DrPhos' Molar Mass4 screens

Verdict

The call

The clearest difference is price: Tutorius at Free against DrPhos' Molar Mass's $0.99. Tutorius also leads on ratings volume (40 vs 9) and iOS requirement (13.0 vs 17.0). DrPhos' Molar Mass's advantage is review sentiment (100% vs 83%) and rating (5.0 vs 4.8). On update cadence, ads, in-app purchases 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

Tutorius is free to download; DrPhos' Molar Mass costs $0.99 up front. Tutorius sells 1 in-app purchase, starting at $9.99 per month and DrPhos' Molar Mass sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DrPhos' Molar Mass holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 40 and 9 respectively. Written reviews point the same way: 83% of Tutorius's written reviews are positive against 100% of DrPhos' Molar Mass's.

UpkeepUpdate frequency

Tutorius ships an update weekly, DrPhos' Molar Mass every 6 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 4 level
Tutorius versus DrPhos' Molar Mass: the parameters behind the verdict, then further details
ParameterTutoriusDrPhos' Molar Mass
PriceFree — better$0.99
Rating4.8 (40 ratings)5.0 (9 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings40 — better9
Update frequencyWeeklyEvery 6 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size119 MB15 MB
Age rating4+4+
DeveloperMichael MontalbanoMonte L Helm

Customer experience

Tutorius

All ratings40 ratings
Positive90.0%
Neutral10.0%
Negative0.0%
Written reviews24 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

DrPhos' Molar Mass

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Tutorius

Subscriptions1
  • Premium Subscription3 Days trial$9.991 Month
10 purchases

DrPhos' Molar Mass

One-time10
  • Science Calculator$0.99
  • Significant Figures Counter$0.99
  • Quadratic Equation Solver$0.99
Show 7 more
  • Ionic Compound Builder$0.99
  • Solution Concentrations$0.99
  • Reaction Balancer$0.99
  • Stoichiometry$0.99
  • Naming Compounds$0.99
  • pH Calculator$0.99
  • Kinetics$0.99

Questions

Is Tutorius free?
Tutorius is free to download, with in-app purchases available.
Is DrPhos' Molar Mass free?
DrPhos' Molar Mass costs $0.99, and also offers in-app purchases.
Which has better reviews, Tutorius or DrPhos' Molar Mass?
DrPhos' Molar Mass is rated higher. Tutorius averages 4.8 out of 5 from 40 ratings, while DrPhos' Molar Mass averages 5.0 from 9 ratings.
Do Tutorius or DrPhos' Molar Mass have ads?
Neither Tutorius nor DrPhos' Molar Mass shows ads.
Which is updated more often, Tutorius or DrPhos' Molar Mass?
Tutorius ships an update weekly, and DrPhos' Molar Mass every 6 days. Most recently, Tutorius was updated on November 3, 2026 and DrPhos' Molar Mass on November 4, 2026.

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