# RAIO App

> Language learning app using spaced repetition and sentence-based context for better retention. (iPhone/iPad app by Kale Anders.)

- Source: https://appshunter.io/ios/app/raio-app/id6446694876 (this page in markdown: same URL + `.md`)
- Developer: [Kale Anders](https://appshunter.io/developer/1678765749)
- Category: Education
- Price: Free with in-app purchases
- Rating: 2.70/5 from 42 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 88 MB
- Languages: American English
- Released: 2023-04-28
- Data updated: 2026-08-15
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/raio-app/id6446694876/reviews.md

## What is RAIO App?

RAIO is a language learning mobile app that allows language learners to review sentences using the power of spaced repetition technology. With RAIO, learners can effortlessly learn grammar and vocabulary at the same time, without having to study complex grammar rules or do boring grammar drills. The app is designed to help learners stop forgetting and getting stuck in conversations having to translate in their as much as they would when learning with traditional method.
The app’s sentence-based approach is another key feature that sets RAIO apart from traditional language learning methods. Rather than teaching using isolated vocabulary words or abstract grammar rules, RAIO uses real-life sentences that are commonly used in everyday conversations. This approach allows learners to acquire vocabulary and grammar in context, which enhances their understanding of the language and improves their ability to communicate effectively.
Spaced repetition, the underlying technology of RAIO’s language learning app, is a technique used by professional language learners and polyglots to acquire languages faster and with less effort. This method of learning is based on the principle of spacing out the review of previously learned material to optimize long-term retention. By scheduling review sessions based on the user’s progress and difficulty level, RAIO’s spaced repetition technology allows learners to remember words and grammar structures better and for longer periods of time, leading to a faster and more effective language learning experience, regardless of which proficiency level they start with.
Another benefit of using RAIO is that learners can slowly start to think in the language. By reviewing sentences in context and focusing on the meaning rather than the individual words or rules, learners can internalize the language and start to think in it. This improves their ability to communicate effectively and increases their fluency in the language.
In summary, RAIO is an innovative mobile app that revolutionizes language learning with its spaced repetition technology and sentence-based approach. The app’s features, such as its review system, audio recordings, translations in multiple languages, personalized progress reports, and gamification features, enhance the learning experience and provide learners with motivation and a sense of accomplishment. By using RAIO, learners can effortlessly learn grammar and vocabulary, stop forgetting as much, stop getting stuck in conversations having to translate in their head as much, and slowly start to think in the language.

Terms of Use: https://kaleanders.com/raio-app-terms

## Key features

- Spaced repetition technology
- Sentence-based learning
- Learn grammar and vocabulary in context
- Reduce translation in your head
- Think in the target language
- Personalized progress reports
- Gamification features

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly - Standard Plan | $19.99 | per month |
| Annual - SAVE 20%! | $179.99 | per year |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/raio-app/id6446694876/reviews.md

### 3/5 — Mejoras

*2026-05-07*

Tome la prueba gratis, realmente el app está con una voz muy robotizada al punto que la pronunciación a mi parecer es un poco confusa sería demasiado bueno que tomaran los audios que están en el curso y los insertaran en app , realmente me gustaría encontrarla así pero entiendo que no podrán hacerlo sin embargo el curso es demasiado bueno ha sido de una gran ayuda para mí, y también me aburrí mucho en las secciones diarias es mi opinion personal con el app y la razón por la cual no seguí con la subscripción

### 5/5 — Me encanta

*2025-11-22*

Está app te repite las frases todo el tiempo, en diferentes tipos de voz y a diferente velocidad, exactamente como hablan los nativos, así vas entendiendo mejor el idioma, y las palabras entran en tu cerebro y se quedan para siempre. Tuve una duda y escribí por Wasap, e inmediatamente me resolvieron y fueron muy amables. Todo está muy ordenado y perfecto. Gracias equipo.

### 1/5 — Nunca funcionó

*2025-08-19*

Compré el curso e intenté descargar la aplicación pero nunca ingresó se quedó cargando cuando ingresó el correo electrónico, el curso puede que si ayude pero dice el que siempre tiene que estar uno en la aplicación y si no ingresa complicado

### 1/5 — Mentiroso

*2025-08-16*

Todo lo que ofrece es falso, compras el curso y luego tienes que pagar la app, las clases y más, ya de por sí el curso es costosisimo y solo tiene unas historias que puedes escuchar en youtube la garantía que ofrece no es verdad no te devuelven el dinero, no te dan clases si no las compras solo te contestan en watsapp y salen con la bobada de no te podemos devolver nada porque la compra fue exitosa.

### 1/5 — Zuzuda

*2025-02-12*

The worst app I ever used wasting money and the worst customer service

### 5/5 — El complemento perfecto

*2025-01-06*

Para los que están comprometidos con su aprendizaje e invierten en el curso me parece perfecta

### 1/5 — El peor curso

*2024-07-13*

Creo que en Youtube hay mejores y enseñan mejor que estos.

### 1/5 — So bad muy mala

*2024-03-19*

Hay apps gratuitas que te ofrecen más y mejores herramientas, no tiene nada especial, iba a comprar el curso, pero si la app me decepciono de esas forma, no me voy a arriesgar.

### 1/5 — Waste of time and money

*2023-11-04*

Do not waste money for something you can get for free on the internet.

## Frequently asked questions about RAIO App

### What is the learning methodology used by RAIO App?

RAIO App utilizes spaced repetition technology combined with a sentence-based approach. This method focuses on learning grammar and vocabulary within real-life sentences to enhance contextual understanding and long-term retention.

### How does RAIO App help with progress tracking?

The app provides personalized progress reports, allowing learners to monitor their development. This feature helps users understand their strengths and weaknesses, guiding their continued learning journey.

### What are the subscription options for RAIO App?

RAIO App offers a Monthly Standard Plan at $19.99/month and an Annual Plan at $179.99/year. Both plans include a 1-month free trial period.

### Does RAIO App have ads?

Yes, RAIO App contains advertisements. As a free application with in-app purchases, ads are part of the user experience.

### What devices is RAIO App available on?

RAIO App is currently supported on iPhone and iPod devices. Compatibility with other platforms may be available in future updates.

### How often is RAIO App updated?

The latest version of RAIO App is 1.16.8, last updated on February 19, 2026. Updates typically occur to introduce new features and improve performance.

### What is the age rating for RAIO App?

RAIO App has an age rating of 4+. This indicates it is suitable for users aged four and older.

### Can I cancel my RAIO App subscription?

Yes, users can typically cancel their subscription at any time through their device's app store settings. It is recommended to review the specific cancellation policy within the app or app store.

## Version history (last 5 releases)

### 1.16.8 — 2026-02-19

-Performance improvements
-Improved animation showing the current level
-Fixed Facebook login issue on iOS

### 1.16.7 — 2025-12-16

-New phrases added
-Improvements and fixes

### 1.16.6 — 2025-11-17

- Integration with Raio's New Dictionary and fixes in server responses.
- Fix in the Ranking.

### 1.16.5 — 2025-10-20

-Library updates
-16KB devices are now supported
-Performance improvements

### 1.16.4 — 2025-04-16

Visual improvements in the study section
Bug fix

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*