# Jonio

> Jonio (iPhone/iPad app by Kleiton Filhinho.)

- Source: https://appshunter.io/ios/app/jonio/id6792494615 (this page in markdown: same URL + `.md`)
- Developer: [Kleiton Filhinho](https://appshunter.io/developer/1650649601)
- Category: Music, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 48 MB
- Languages: American English
- Released: 2026-07-26
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/jonio/id6792494615/reviews.md

## What is Jonio?

Jonio brings together the essential tools every musician needs in a single app.
• Simple and accurate metronome
• Chromatic tuner
• Reference tone generator
• Fully offline
Jonio is designed to provide a fast, clean, and distraction-free experience. No annoying ads, no mandatory subscriptions, and no unnecessary features.
If Jonio becomes part of your practice routine, you can support its development by buying me a coffee directly in the app. This contribution is completely optional and helps keep the app free and continuously improving.
Thank you for being part of this journey.


## Version history (last 2 releases)

### 2 — 2026-07-27

• More precise and stable metronome timing.
• Improved tuner note-detection accuracy.
• The screen now stays on while the metronome is running.
• Performance improvements and bug fixes.

### 1.0 — 2026-07-26

No release notes.

## More apps by Kleiton Filhinho

- [Boreal](https://appshunter.io/ios/app/boreal/id6443924119)

All apps by Kleiton Filhinho: https://appshunter.io/developer/1650649601

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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 2026-09-03.*