# Undertone - Voice Journal — Speak freely. Stay private. > Offline voice journal with on-device AI transcription for ultimate privacy. (iPhone/iPad app by Jessica Huang.) - Source: https://appshunter.io/ios/app/undertone-voice-journal/id6761442127 (this page in markdown: same URL + `.md`) - Developer: [Jessica Huang](https://appshunter.io/developer/1692895712) - Category: Lifestyle, Productivity - Price: $4.99 - Age rating: 4+ - Requires: iOS 18.4 · 1.4 GB - Languages: American English - Released: 2026-05-06 - Data updated: 2026-08-25 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/undertone-voice-journal/id6761442127/reviews.md ## What is Undertone? Undertone is a voice journal that never leaves your phone. Press record. Speak. Watch your words appear; transcribed entirely on your device by a Whisper AI model that lives inside the app. No internet connection, no account, no server, anywhere, ever sees what you said. WHY OFFLINE MATTERS Most "voice-to-text" apps quietly send your audio to a remote server for transcription. Even ones that claim to be private often route through Apple's Speech framework, which uses Apple's servers by default. Undertone doesn't. The Whisper model is bundled inside the app at install time. Transcription happens on your phone's Neural Engine — the same chip that handles Face ID — and nothing is sent anywhere. Turn on airplane mode. It still works. WHAT YOU GET • Press-to-record voice entries with a calm, focused interface • On-device transcription powered by Whisper AI. • Choose between Small, Medium, and Large models — trade speed for accuracy as you like • Tag entries and search across your full archive, locally • Replay any recording alongside its transcript with a precise waveform scrubber • Append to existing entries when a thought continues a few hours later • Backup and restore your entire journal as a single archive — your data, in your hands PRIVACY, IN PLAIN TERMS • No account required • No analytics, no tracking, no advertising SDKs • No cloud storage; audio and transcripts live in your app's sandbox • No microphone access outside active recording • No data sold, shared, or seen by anyone but you Read the full privacy policy at jessinglabs.com/privacy. ONE PURCHASE. YOURS FOREVER. Undertone is a one-time purchase. No subscription. All future updates are included. Made in Seattle by Jessing Labs. Questions, feedback, or ideas: jessinglabs@gmail.com ## Key features - On-device transcription with Whisper AI - Offline functionality, works in airplane mode - No account or internet connection required - Tag and search journal entries locally - Replay recordings with waveform scrubber - Backup and restore entire journal archive ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/undertone-voice-journal/id6761442127/reviews.md ### 5/5 — Happy with it so far *2026-05-10, version 1.0* Ive been trialing a few voice to text apps for my creative writing and i really like this one so far. The voice translation is pretty accurate and i like that my data is being used ### 5/5 — what i was looking for *2026-05-09, version 1.0* I always wanted a voice journal but privacy was the dealbreaker for me with other apps. This keeps it all local and the transcription actually works pretty well with barely any mistakes. The ui is clean and straightforward as well. Worth the one-time purchase ### 5/5 — Makes journaling easy! *2026-05-08, version 1.0* Such a convenient way to record entries at any time without having to hand write ### 5/5 — Good UX *2026-05-07, version 1.0* Easy to use and I like the principle behind the app, I also like categorizing my thoughts and being able to backup and export them. ### 5/5 — Great for on-the-go journalling *2026-05-07, version 1.0* It's simple to use and great for daily use to transcribe my thoughts and ideas while on the move. Love that my data is secured by me and in my control! ## Frequently asked questions about Undertone ### Does Undertone have ads? No, Undertone is completely ad-free. The app is a one-time purchase and does not contain any advertisements. ### How much does Undertone cost? Undertone is a one-time purchase priced at $4.99. All future updates are included with this purchase, meaning no subscriptions or additional fees. ### What devices does Undertone support? Undertone is available for iPhone and iPad. It is designed to run on Apple's mobile operating system. ### Is Undertone safe for younger users? Yes, Undertone has an age rating of 4+, making it suitable for a wide range of users. Its focus on privacy and offline functionality enhances user safety. ### How often is Undertone updated? The app was last updated on 2026-05-06 with version 1.0. As a one-time purchase, all future updates are included, suggesting ongoing development. ### Can I use Undertone without an internet connection? Absolutely. Undertone is designed for complete offline use. You can even turn on airplane mode, and the app will continue to function for recording and transcription. ### What makes Undertone's privacy features unique? Unlike many voice-to-text apps, Undertone's Whisper AI model is embedded within the app itself. This means your audio is transcribed directly on your device's Neural Engine, and no data is ever sent to external servers. ### How can I back up my journal entries in Undertone? Undertone allows you to back up and restore your entire journal as a single archive file. This ensures your data remains in your hands and can be easily managed. ## Version history (last 1 release) ### 1.0 — 2026-05-06 No release notes. ## More apps by Jessica Huang - [Piecemeal - Split Your Bills](https://appshunter.io/ios/app/piecemeal-split-your-bills/id6450351530) All apps by Jessica Huang: https://appshunter.io/developer/1692895712 --- *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 2026-08-25.*