# Kidioms 2 vs CitizIN

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.

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.

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.

## The numbers

| Metric | Kidioms 2 | CitizIN |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/kidioms-2/id489647156/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 29 MB | 218 MB |
| Requires iOS | 13.2 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Indiana University](https://appshunter.io/developer/383456988) |

## What reviewers say

### Kidioms 2

[App page](https://appshunter.io/ios/app/kidioms-2/id489647156)

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:** macOS Compatibility

**In-app purchases:** none


### CitizIN

[App page](https://appshunter.io/ios/app/citizin/id1487212136)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*