Comparison

Periodic vs DrPhos' Reaction Balancer

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

Head to head
About

Periodic

Features
Read full description

The PeriodicTableElements is an elegant app that is interactive and fun. Easy to use, easy to understand, simple and effective. It shows the periodic table of elements in variety of ways 1) Classic grid with name that is color coded. You can configure it to look however you like. 2) Visually appealing electron distribution. 3) Visually appealing Lewis dot structure. 4) List that can be sorted based on different element properties like group, period, category etc. These awesome periodic tables can be shared by simple double click anywhere on the table. It is possible to copy the periodic table diagrams as high quality SVG xml. Drag your finger on the periodic table canvas to update elements automatically or tap on an element to see more details. Tap on an element and all the rest of the related elements are highlighted. Details of a selected element is shown in a beautifully drawn animated element. Tap on the animated element and you will see more details that can also be shared. Tapping on the list element will navigate you to a page that shows details of the element. 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 chemistry. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

About

DrPhos' Reaction Balancer

Instantly balance chemical equations with this tool. It supports complex formulas and provides clear visual formatting, making it ideal for students learning stoichiometry and preparing for chemistry exams.

Highlights
  • Automatically balances chemical equations
  • Supports complex formulas with parentheses
  • Clear visual formatting with subscripts
  • Built-in learning support
  • Molar Mass Calculator
  • Stoichiometry Solver
Features
Read full description

Balance Chemical Equations Instantly The DrPhos Reaction Balancer helps you quickly and accurately balance chemical equations—whether you’re working with simple reactions or complex compounds. Just enter reactants and products, and the app will calculate the correct coefficients to balance mass and charge. Perfect for students learning reaction stoichiometry, conservation of mass, or preparing for chemistry exams. Features: • Automatically balances chemical equations • Supports complex formulas with parentheses and polyatomic ions • Clear visual formatting with subscripts and coefficients • Great for high school, AP Chemistry, and college general chemistry • Built-in learning support through structure and feedback Want more chemistry tools? Unlock other features or upgrade to the full DrPhos GenChem Helper, which includes: • Molar Mass Calculator • 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 for $0.99, or get the full suite for $9.99.

Screenshots

Periodic4 screens
DrPhos' Reaction Balancer4 screens

Verdict

The call

The clearest difference is price: Periodic at Free against DrPhos' Reaction Balancer's $0.99. Periodic also leads on in-app purchases (none vs 11) and iOS requirement (15.1 vs 17.0). DrPhos' Reaction Balancer's advantage is ads (none vs shown). On update cadence 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

Periodic is free to download; DrPhos' Reaction Balancer costs $0.99 up front. DrPhos' Reaction Balancer sells 11 one-off in-app purchases. Periodic asks for nothing beyond the download.

UpkeepUpdate frequency

Periodic ships an update every 5 weeks, DrPhos' Reaction Balancer every 3 weeks. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

Scorecard4 real differences · 5 level
Periodic versus DrPhos' Reaction Balancer: the parameters behind the verdict, then further details
ParameterPeriodicDrPhos' Reaction Balancer
PriceFree — better$0.99
Rating—3.7 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size35 MB15 MB
Age rating4+4+
DeveloperOm Prakash ChapagainMonte L Helm

In-app purchases

None

Periodic

No in-app purchases

11 purchases

DrPhos' Reaction Balancer

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

Questions

Is Periodic free?
Periodic is free to download, with no in-app purchases.
Is DrPhos' Reaction Balancer free?
DrPhos' Reaction Balancer costs $0.99, and also offers in-app purchases.
Do Periodic or DrPhos' Reaction Balancer have ads?
Periodic shows ads; DrPhos' Reaction Balancer does not.
Which is updated more often, Periodic or DrPhos' Reaction Balancer?
Periodic ships an update every 5 weeks, and DrPhos' Reaction Balancer every 3 weeks. Most recently, Periodic was updated on October 12, 2026 and DrPhos' Reaction Balancer on September 30, 2026.

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