Comparison

Smart periodic table vs DrPhos' Ionic Compounds

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

Head to head
About

Smart periodic table

Access comprehensive details on all 118 chemical elements, including their properties, discovery, and atomic information. This app serves as a valuable study aid and translation tool, offering offline access to basic data and online links to Wikipedia for further research.

Highlights
  • 118 element details
  • Multi-language element names
  • Offline basic information
  • Online Wikipedia links
  • Search by category/phase
  • Email element data
Features
Read full description

This is an application about periodic table of the chemical elements. You can search information of 118 elements. It is also a good tool for your study or translation/interpreter works. Features: 1, The following basic information about an element is displayed in the detail screen. Name (in English, Japanese, Chinese, French, German, Latin) symbol, number Element category Group, period, block Standard atomic weight Phase Density Melting point Boiling point Discovered year. 2, Touch the wiki button in the detail screen, the more detail information can be reference in the corresponding language set in your device. 3, In the startup screen, the elements can be search by category or phase. 4, Touch the element symbol in periodic table, the detail screen will be displayed. 5, The network environment isn't needed for basic information 6, Mail the basic information. Language: Element name: English, Japanese, Chinese, French, German, Latin. User interface: English, Chinese, Japanese, French, German 这是一个快速查阅各种化学元素特征的程序,可以对你的学习和工作起到很大的帮助作用,支持在线连接,可以在详细画面连接维基百科以便查阅有关更详细的资料。 Reference: Wikipedia

About

DrPhos' Ionic Compounds

This app helps students learn and practice forming correct chemical formulas for ionic compounds. It supports a wide range of ions, including polyatomic ones, and dynamically generates formulas with proper subscripts and parentheses. It's designed to reinforce naming rules and charge balancing through an interactive interface.

Highlights
  • Extensive cation and anion list
  • Support for polyatomic ions
  • Real-time formula generation
  • Subscript and parenthesis formatting
  • Reinforces naming rules
  • Charge balancing practice
Features
Read full description

Master Ionic Compounds with Ease The Ionic Compound Builder helps students learn and practice forming correct chemical formulas using a wide range of cations and anions—including polyatomic ions. Simply select a cation and an anion, and the app dynamically generates the proper formula with correct subscripts and parentheses. Designed for high school and college chemistry students, this tool reinforces naming rules and charge balancing through an intuitive, interactive interface. Features: • Extensive built-in list of common cations and anions • Support for monoatomic and polyatomic ions • Real-time chemical formula generation • Proper use of subscripts and parentheses • Visual formatting to emphasize structure and charge Whether you’re learning ionic bonding for the first time or reviewing for an exam, this tool is an essential companion for mastering chemical formulas.

Screenshots

Smart periodic table3 screens
DrPhos' Ionic Compounds3 screens

Verdict

The call

Smart periodic table and DrPhos' Ionic Compounds both sit at 5.0 stars, but that hides the real split: 100% of DrPhos' Ionic Compounds's written reviews are positive against 0% of Smart periodic table's. DrPhos' Ionic Compounds also leads on update cadence (every 3 weeks vs every 7 months) and ratings volume (8 vs 1). Smart periodic table's advantage is in-app purchases (none vs 11) and iOS requirement (15.0 vs 17.0). On rating, ads, monetization model 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

Smart periodic table costs $1.99 and DrPhos' Ionic Compounds $0.99 up front. DrPhos' Ionic Compounds sells 11 one-off in-app purchases. Smart periodic table asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Smart periodic table against 4.9 for DrPhos' Ionic Compounds. That said, the two scores are not equally well evidenced: DrPhos' Ionic Compounds has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 0% of Smart periodic table's written reviews are positive against 100% of DrPhos' Ionic Compounds's.

UpkeepUpdate frequency

Smart periodic table ships an update every 7 months, DrPhos' Ionic Compounds every 3 weeks. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

Scorecard6 real differences · 4 level
Smart periodic table versus DrPhos' Ionic Compounds: the parameters behind the verdict, then further details
ParameterSmart periodic tableDrPhos' Ionic Compounds
Price$1.99$0.99 — better
Rating5.0 (1 ratings) — better4.9 (8 ratings)
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings18 — better
Update frequencyEvery 7 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size1 MB15 MB
Age rating4+4+
DeveloperAOBO Co.,LtdMonte L Helm

Customer experience

Smart periodic table

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

DrPhos' Ionic Compounds

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Smart periodic table

No in-app purchases

11 purchases

DrPhos' Ionic Compounds

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

Questions

Is Smart periodic table free?
Smart periodic table costs $1.99, with no in-app purchases.
Is DrPhos' Ionic Compounds free?
DrPhos' Ionic Compounds costs $0.99, and also offers in-app purchases.
Which has better reviews, Smart periodic table or DrPhos' Ionic Compounds?
Smart periodic table is rated higher. Smart periodic table averages 5.0 out of 5 from 1 ratings, while DrPhos' Ionic Compounds averages 4.9 from 8 ratings.
Do Smart periodic table or DrPhos' Ionic Compounds have ads?
Neither Smart periodic table nor DrPhos' Ionic Compounds shows ads.
Which is updated more often, Smart periodic table or DrPhos' Ionic Compounds?
Smart periodic table ships an update every 7 months, and DrPhos' Ionic Compounds every 3 weeks. Most recently, Smart periodic table was updated on October 15, 2026 and DrPhos' Ionic Compounds on September 30, 2026.

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