Comparison

Kidioms 2 vs CitizIN

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

Head to head
About

Kidioms 2

This app makes learning English idioms engaging for children and English language learners. It uses an interactive notebook with definitions, examples, and illustrations, plus three fun games to reinforce understanding and practice idiom usage.

Highlights
  • Interactive idiom notebook
  • Idiom definitions and examples
  • Illustrative graphics
  • Word Drop game
  • Missing Word game
  • Match-Up game
Features
Read full description

Kidioms 2 - More Idioms for Kids Kidioms 2 introduces 64 more commonly used idioms.This iPad app makes learning idioms fun for children, ELL students, or anyone wishing to improve their understanding of English. The app uses an interactive notebook to present an idiom, it's meaning and an example showing the idiom used in context. Each page of the notebook also has a graphic to help illustrate the idiom’s meaning. In addition to the lessons, Kidioms offers three interactive activities to help reinforce the concepts and provide practice using and understanding the idioms. Word Drop challenges the learner to complete the idiom by choosing the correct missing word. Missing Word asks the user to spell the missing word. In Match-Up the player selects the correct idiom to fill in the blank in a larger block of text. Vocabulary Acquisition and Use Grade 3 •L.3.5. Demonstrate understanding of figurative language, word relationships and nuances in word meanings. ◦Distinguish the literal and non-literal meanings of words and phrases in context (e.g.,take steps). ◦Identify real-life connections between words and their use (e.g., describe people who are friendly or helpful). ◦Distinguish shades of meaning among related words that describe states of mind or degrees of certainty (e.g., knew, believed, suspected, heard, wondered). Grade 4 •L.4.5. Demonstrate understanding of figurative language, word relationships, and nuances in word meanings. ◦Explain the meaning of simple similes and metaphors (e.g., as pretty as a picture) in context. ◦Recognize and explain the meaning of common idioms, adages, and proverbs. Demonstrate understanding of words by relating them to their opposites (antonyms) and to words with similar but not identical meanings (synonyms). Grade 5 L.5.5. Demonstrate understanding of figurative language, word relationships, and nuances in word meanings. •Interpret figurative language, including similes and metaphors, in context. •Recognize and explain the meaning of common idioms, adages, and proverbs. Use the relationship between particular words (e.g., synonyms, antonyms, homographs) to better understand each of the words.

About

CitizIN

Features
Read full description

CitizIN was developed by the Center on Representative Government as a companion to the books, Hoosiers and the American Story, and Hoosiers, A New History of Indiana. Library of Congress Inquiry Cycle Techniques for: Primary Sources Interactive Skill Builders Videos Content Assessed with: Trivia Challenges Knowledge Check Mini-Games Primary Source Gallery Documents for further in-class analysis Provides teachers with additional Library of Congress Teaching with Primary Sources (TPS) resources to extend content

Screenshots

CitizIN4 screens

Verdict

The call

The clearest difference is price: CitizIN at Free against Kidioms 2's $1.99. CitizIN also leads on update cadence (every 3 weeks vs every 17 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement 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

CitizIN is free to download; Kidioms 2 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kidioms 2 ships an update every 17 months, CitizIN every 3 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Kidioms 2 versus CitizIN: the parameters behind the verdict, then further details
ParameterKidioms 2CitizIN
Price$1.99Free — better
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 17 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.212.0 — better
Further details — not scored
Size29 MB218 MB
Age rating4+9+
DeveloperVentura Educational SystemsIndiana University

In-app purchases

None

Kidioms 2

No in-app purchases

None

CitizIN

No in-app purchases

Questions

Is Kidioms 2 free?
Kidioms 2 costs $1.99, with no in-app purchases.
Is CitizIN free?
CitizIN is free to download, with no in-app purchases.
Do Kidioms 2 or CitizIN have ads?
Neither Kidioms 2 nor CitizIN shows ads.
Which is updated more often, Kidioms 2 or CitizIN?
Kidioms 2 ships an update every 17 months, and CitizIN every 3 weeks. Most recently, Kidioms 2 was updated on October 5, 2026 and CitizIN on October 12, 2026.

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