# Kioki vs OTG Play Shift

The clearest difference is review sentiment: OTG Play Shift at 100% against Kioki's 33%. OTG Play Shift also leads on in-app purchases (none vs 2) and ads (none vs shown). Kioki's advantage is price (Free vs $4.99) and update cadence (every 6 days vs every 3 weeks). On ratings volume, device support and iOS requirement there is nothing between them.

Kioki is free to download; OTG Play Shift costs $4.99 up front. Kioki sells 2 in-app purchases, starting at $9.99 per month. OTG Play Shift asks for nothing beyond the download.

OTG Play Shift holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 41 and 20 respectively. Written reviews point the same way: 33% of Kioki's written reviews are positive against 100% of OTG Play Shift's.

Kioki ships an update every 6 days, OTG Play Shift every 3 weeks. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Kioki | OTG Play Shift |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.7 (41 ratings)](https://appshunter.io/ios/app/kioki-language-flashcards/id6752632373/reviews) | **[5.0 (20 ratings)](https://appshunter.io/ios/app/otg-play-shift/id6759209520/reviews)** |
| Number of ratings | **41** | 20 |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 62 MB | 383 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lucidcraft Studio, Inc.](https://appshunter.io/developer/1840302131) | [Ian Larsen](https://appshunter.io/developer/1877431364) |

## What reviewers say

### Kioki

[App page](https://appshunter.io/ios/app/kioki-language-flashcards/id6752632373)

Master vocabulary and real-world expressions for conversations and exams. Create flashcards from notes, PDFs, or images, or use ready-made decks. Features spaced repetition for long-term memory and progress tracking across devices.

**Highlights:** Create flashcards from notes, PDFs, and images, Spaced repetition for long-term memory, Ready-made decks for quick start, Progress tracking and study routine building, Seamless sync across iOS and web, Import decks from various file formats, AI-powered deck creation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kioki Premium | $9.99 | per month |
| Kioki Premium - Yearly | $39.99 | per year |


### OTG Play Shift

[App page](https://appshunter.io/ios/app/otg-play-shift/id6759209520)

This app uses engaging, game-based activities to help children develop crucial visual and executive functioning skills. It supports cognitive development through exercises targeting visual tracking, attention, planning, and problem-solving, also aiding speech and language development.

**Highlights:** Interactive visual perception exercises, Games for planning and sequencing, Activities for speech and language development, Structured gameplay for therapeutic goals, Visual skills training, Executive functioning development

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kioki free?

Kioki is free to download, with in-app purchases available.

### Is OTG Play Shift free?

OTG Play Shift costs $4.99, with no in-app purchases.

### Which has better reviews, Kioki or OTG Play Shift?

OTG Play Shift is rated higher. Kioki averages 4.7 out of 5 from 41 ratings, while OTG Play Shift averages 5.0 from 20 ratings.

### Do Kioki or OTG Play Shift have ads?

Kioki shows ads; OTG Play Shift does not.

### Which is updated more often, Kioki or OTG Play Shift?

Kioki ships an update every 6 days, and OTG Play Shift every 3 weeks. Most recently, Kioki was updated on October 25, 2026 and OTG Play Shift on October 18, 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.*