Comparison

Polynomial vs DrPhos' Stoichiometry

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

Head to head
About

Polynomial

Features
Read full description

The PolynomialSolver is carefully designed to be a simple and elegant app. Easy to use, easy to understand, simple and effective It solves (finds all the roots) polynomials of any order (any degree). Roots can be real, complex or combination of both. No problem. This app has you covered. To find all the solutions, it uses Aberth Ehrlich algorithm for higher order polynomials. The polynomial is beautifully presented in mathematical format. You can also solve multiple polynomials at once. You can also share the polynomial and its solution. Perform the polynomial division to find the quotient and remainder. This app also plots beautiful graph of the polynomial(s) so that you can visualize the solution in the graph. The graph can be shared with other or it can be saved locally on your device. It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. This is a perfect app if you are a student learning to solve these kind of equations. There is also a Study page to help you with learning some important polynomial concepts. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

About

DrPhos' Stoichiometry

This tool simplifies solving chemical reaction problems by allowing users to input balanced equations and identify known and unknown compounds. It instantly calculates moles and mass, assisting students with various stoichiometry challenges.

Highlights
  • Mole, mass, and volume conversions
  • Balanced chemical equation support
  • Compound selection
  • Limiting reactant detection
  • High school and college chemistry focus
Features
Read full description

Solve Stoichiometry Problems Fast The DrPhos Stoichiometry Tool makes solving chemical reaction problems simple. Enter a balanced equation, choose known and unknown compounds, and instantly calculate moles and mass. Designed for chemistry students, this tool walks you through the stoichiometric process with clean visuals and intelligent logic. Whether you’re solving basic mole ratios or limiting reactant problems, this app keeps your work fast, accurate, and focused. Features: • Supports mole, mass, and volume conversions • Works with balanced chemical equations • Select known and unknown compounds easily • Built-in limiting reactant detection • Ideal for high school and college chemistry Use this app on its own or unlock it within the full DrPhos GenChem Helper suite to streamline your chemistry toolkit.

Screenshots

Polynomial4 screens
DrPhos' Stoichiometry4 screens

Verdict

The call

The clearest difference is in-app purchases: Polynomial at none against DrPhos' Stoichiometry's 11. Polynomial also leads on iOS requirement (15.1 vs 17.2). DrPhos' Stoichiometry's advantage is price ($0.99 vs $1.99). On update cadence, ads 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

Polynomial costs $1.99 and DrPhos' Stoichiometry $0.99 up front. DrPhos' Stoichiometry sells 11 one-off in-app purchases. Polynomial asks for nothing beyond the download.

UpkeepUpdate frequency

Polynomial ships an update monthly, DrPhos' Stoichiometry every 3 weeks. The most recent releases landed on August 16, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 6 level
Polynomial versus DrPhos' Stoichiometry: the parameters behind the verdict, then further details
ParameterPolynomialDrPhos' Stoichiometry
Price$1.99$0.99 — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.2
Further details — not scored
Size36 MB15 MB
Age rating4+4+
DeveloperOm Prakash ChapagainMonte L Helm

In-app purchases

None

Polynomial

No in-app purchases

11 purchases

DrPhos' Stoichiometry

One-time11
  • Significant Figures Counter$0.99
  • Science Calculator$0.99
  • Quadratic Equation Solver$0.99
Show 8 more
  • Kinetics$0.99
  • Molar Mass Calculator$0.99
  • General Chemistry Naming$0.99
  • Ionic Compound Builder$0.99
  • Solution Concentrations$0.99
  • Reaction Balancer$0.99
  • pH Calculator$0.99
  • Stoichiometry$0.99

Questions

Is Polynomial free?
Polynomial costs $1.99, with no in-app purchases.
Is DrPhos' Stoichiometry free?
DrPhos' Stoichiometry costs $0.99, and also offers in-app purchases.
Do Polynomial or DrPhos' Stoichiometry have ads?
Neither Polynomial nor DrPhos' Stoichiometry shows ads.
Which is updated more often, Polynomial or DrPhos' Stoichiometry?
Polynomial ships an update monthly, and DrPhos' Stoichiometry every 3 weeks. Most recently, Polynomial was updated on August 16, 2026 and DrPhos' Stoichiometry on September 20, 2026.

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