Comparison

WTR Notebook vs Periodic Table

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

Head to head
About

WTR Notebook

Features
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The WTR Notebook App is a writing app with a sounding keyboard. Using the app, you can listen to the letter sounds while you are writing, and hear your text being read by a speech synthesizer. You can insert images from your image library or take new pictures with your camera. Focusing mainly on kindergarten, pre-school and school, the WTR Notebook App supports multiple users, making it a perfect tool for environments where several users share the same iPad. As a teacher or a parent, you are able to create as many accounts as you wish. You can easily switch between different users. Users are only able to view their own texts. Using the WTR Notebook App, the writer will type words using the sounding keyboard. Pressing the letter key, the app will sound out the letter for the writer, in order to connect the sign of the letter to its sound. Every word is read by the speech synthesizer when the writer hits space or a punctuation mark. The writer can move back and forwards in her text and listen to the whole text at any time. This makes text development easier. The WTR Notebook App enables you to create any number of documents. This app allows you to choose between several fonts, some similar to hand-written letters. The finished text can be converted into a PDF or saved as plain text for Microsoft Word or Apple Pages. Additionally, text files can be imported from other sources such as DropBox, OneDrive, Google Drive, iCloud. The WTR Notebook App provides many possibilities for teachers and parents to adapt the contents of the app such as spell check, autocorrect, language, and speech synthesizer. The app contains no in-app purchases, rewards, music or sound effects. The sounding keyboard supports Swedish and English, whilst the sound synthesizer can be used with any language supported by Apple. This app has full support for Voice Over.

About

Periodic Table

Features
Read full description

Learn the Periodic Table using random questions. This app generates questions about names, atomic numbers and symbols.

Screenshots

WTR Notebook4 screens
Periodic Table4 screens

Verdict

The call

The clearest difference is update cadence: WTR Notebook at every 2 months against Periodic Table's every 28 months. WTR Notebook also leads on iOS requirement (11.0 vs 16.0). Periodic Table's advantage is price ($1.99 vs $4.99). On ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

WTR Notebook costs $4.99 and Periodic Table $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

WTR Notebook ships an update every 2 months, Periodic Table every 28 months. The most recent releases landed on September 28, 2026 and October 6, 2026 respectively.

Scorecard3 real differences ยท 3 level
WTR Notebook versus Periodic Table: the parameters behind the verdict, then further details
ParameterWTR NotebookPeriodic Table
Price$4.99$1.99 โ€” better
Update frequencyEvery 2 months โ€” betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS11.0 โ€” better16.0
Further details โ€” not scored
Size14 MB1 MB
Age rating4+4+
DeveloperDigitalt Hjarta ABJorge Lucioni Charalla

In-app purchases

None

WTR Notebook

No in-app purchases

None

Periodic Table

No in-app purchases

Questions

Is WTR Notebook free?
WTR Notebook costs $4.99, with no in-app purchases.
Is Periodic Table free?
Periodic Table costs $1.99, with no in-app purchases.
Do WTR Notebook or Periodic Table have ads?
Neither WTR Notebook nor Periodic Table shows ads.
Which is updated more often, WTR Notebook or Periodic Table?
WTR Notebook ships an update every 2 months, and Periodic Table every 28 months. Most recently, WTR Notebook was updated on September 28, 2026 and Periodic Table on October 6, 2026.

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