# Rainvo — Find your reading voice > Speech recognition app for elementary students to practice reading foundational words. (iPhone/iPad app by Zymbiotic Technologies.) - Source: https://appshunter.io/ios/app/rainvo/id6447789097 (this page in markdown: same URL + `.md`) - Developer: [Zymbiotic Technologies](https://appshunter.io/developer/338578112) - Category: Education, Utilities - Price: $8.99 - Age rating: 4+ - Requires: iOS 13.0 · 1 MB - Languages: American English - Released: 2023-04-22 - Data updated: 2026-08-20 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/rainvo/id6447789097/reviews.md ## What is Rainvo? Learn to read with speech recognition and Dolch sight words. The app will present a word on a card. Use your voice to read it. This is flashcards for the 21st century with touch screen displays and speech recognition. Designed with your primary grades elementary student in mind, this handy tool can make learning foundational reading skills fun. The app presents one word at a time from a set of cards. Use your voice to read the word. If the word is read correctly, another word on a card is presented. If the app does not hear the correct pronunciation, you will get a visual indication that the pronunciation is not correct and you can try the word again. The next card is only displayed if the card is read correctly. Cards are grouped into sets of words arranged by the Dolch sight word list levels (Pre-primer, Primer, 1, 2, 3). Word difficulty will automatically progress to the next higher level as words are correctly pronounced. At any time a different level can be selected by flipping over the card (tap the card corner), and tapping on the level name. The screenshots shown are samples of words from various levels. Have an older iPad or iPhone or iPod touch? We've tried to make the app work with as many devices as possible that can do speech recognition. The app runs in landscape mode, and each word card fills the screen. There are two important device features that the app will require access to: the microphone (to hear your spoken word), and speech recognition (to understand your spoken word). The app will walk you through a very short setup sequence the very first time you open the app. Occasional incorrect pronunciations may be recognized due to wrong-word or "sound-a-like" substitutions due to the inherent limitations of speech recognition. Over time, with continued use of speech recognition, errors due to these substitutions may decrease. No in-app purchases. A one-time purchase provides access to the entire app for all your supported devices. Interested in learning foundational math skills? Search the App Store for Mathvo. Questions, issues, or comments? Contact support@zymbiotic.com. ## Key features - Speech recognition for pronunciation feedback - Dolch sight word lists by level - Progressive difficulty based on correct pronunciation - Visual feedback for incorrect pronunciations - Supports iPhone, iPad, and iPod touch ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/rainvo/id6447789097/reviews.md ### 5/5 — Teacher’s wish list *2023-05-08* We are having SO much fun learning with this app! The students are engaged and always ask to keep going. I think it’s such a great tool in helping kids learn those important sight words. Kids could practice reading CORRECTLY on their own if parents don’t have the time. The instant feedback is satisfying! ### 5/5 — Teacher must have! *2023-05-03* The kids love reviewing their sight words with this app! They ask to use it every day and enjoy the interactivity. Sight words can be fun to learn with the right tools. Five stars! ## Frequently asked questions about Rainvo ### How does Rainvo help children learn to read? Rainvo uses speech recognition to present words on cards. Children read the words aloud, and the app provides immediate feedback on their pronunciation, guiding them through different reading levels. ### What reading levels does Rainvo cover? Rainvo organizes words into sets based on the Dolch sight word list levels, including Pre-primer, Primer, and levels 1, 2, and 3. The difficulty automatically progresses as words are pronounced correctly. ### Does Rainvo have ads? No, Rainvo does not contain advertisements. The app is ad-free, providing an uninterrupted learning experience. ### What devices are compatible with Rainvo? Rainvo is designed to work with a wide range of Apple devices, including iPhone, iPad, and iPod touch, that support speech recognition. ### How much does Rainvo cost? Rainvo is a one-time purchase priced at $8.99. This purchase grants access to the entire app across all supported devices. ### What are the age recommendations for Rainvo? Rainvo is suitable for children aged 4 and above, making it appropriate for primary grades elementary students. ### How often is Rainvo updated? The latest version of Rainvo is 1.1, which was released on April 23, 2023. Updates typically focus on improving performance and compatibility. ### Can I switch between reading levels in Rainvo? Yes, you can select a different level at any time by tapping the corner of the word card and then tapping on the desired level name. ## Version history (last 3 releases) ### 1.2.1 — 2026-06-06 Improved word recognition. Updated for recent iOS versions. ### 1.1 — 2023-04-23 Updated recognition engine based on user feedback. ### 1.0 — 2023-04-23 No release notes. ## More apps by Zymbiotic Technologies - [Mental Note ๛](https://appshunter.io/ios/app/mental-note/id338578109) - [Mental Note Lite ๛](https://appshunter.io/ios/app/mental-note-lite/id348204405) - [Bhabhi](https://appshunter.io/ios/app/bhabhi/id350224198) - [Mental Note for iPad ๛](https://appshunter.io/ios/app/mental-note-for-ipad/id364091207) - [Brainwave](https://appshunter.io/ios/app/brainwave/id400523459) - [Dermcam](https://appshunter.io/ios/app/dermcam/id958327023) All apps by Zymbiotic Technologies: https://appshunter.io/developer/338578112 --- *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 2026-08-20.*