Voice Tools
Medical · DevExtras
Voice Tools screenshots
Voice Tools is a free Android app from DevExtras, listed under Medical, and it does one job: showing you what your voice is doing while you speak. The screen tracks pitch, tone and volume as they happen, with the pitch readout framed around associated gender. For anyone working on a voice that does not match how they are read, that feedback loop is the reason to consider it.
The app has been on Google Play since November 2018 and sits at a 4.3 average from 3,240 ratings, with more than 500,000 installs. It is not a course and it is not a pitch shifter. The developer is explicit that it provides visual feedback only and does not change how your voice sounds. What it offers is a mirror for the voice, and that is a narrower and more useful thing than it first appears.
What using it looks like
The core of the app is the live graph. As you speak, your pitch is plotted in real time and mapped against associated gender ranges, so you can see where a phrase landed rather than guessing. Volume gets the same treatment, which matters because a pitch that holds but a volume that drops away is a common way a trained voice slips.
Alongside the graph there is a set of phonetically balanced sentences to read aloud. The point of that balance is coverage: by reading through them you work a broad spread of sounds instead of the handful you would naturally reach for in conversation, which is exactly the sort of thing that is hard to self-assess without a reference.
There is also a tone generator, so you can listen to a specific pitch and try to match it. Between the graph, the sentences and the tones, a session has a natural shape: hear the target, read the material, watch where you actually landed. The developer suggests roughly five minutes a day over several months, and that framing is honest about what changing a voice involves.
Recording without leaving a trace
You can record and play back within the app, and the recordings are not saved to your device. That design choice matters more here than in most audio apps. Voice practice is personal, and being able to hear a passage back without accumulating a folder of clips is a meaningful convenience.
According to the developer, nothing you record is kept or sent off the phone. For anyone uneasy about their voice being stored somewhere, that is the reassurance that counts, and it removes a reason to hesitate before pressing record.
The recent update added a Harmonics and Spectrum page and a practice mode built around your own voice. The developer has also said that resonance and phonetics are planned for later. Taken together, that suggests a tool that is still being extended rather than one that shipped complete and stopped.
The microphone matters more than you would think
This is where expectations need adjusting. An external microphone gives the most reliable readings. The phone's own mic can be used, though the developer says outcomes differ: the readings need a fairly quiet room, and some handsets pick up a lot of background sound.
That is not a small caveat. A graph that jumps around because a fan is running or a television is on is worse than no graph, since it teaches you to distrust the feedback. If you plan to use this seriously, a quiet room is close to a requirement, and an external microphone is the upgrade that makes the pitch reading worth relying on.
The app is also clear about its limits. There are no lessons or coaching inside the app. Its role is to support voice therapy rather than replace it. If you are working with a speech therapist, this is the between-sessions tool that keeps you honest. If you are not, the app will show you numbers without telling you what to do about them.
Ads, purchases and who it fits
Voice Tools comes in two versions: a free one supported by advertising, and a paid one without ads. You can pay in the settings screen to drop the adverts. Beyond that, the app is free to install.
As for who it suits, the focus is stated plainly: transgender voice therapy, and the app describes itself as transgender and non-binary friendly. The people who will get the most from it are those already doing voice work, whether with a therapist or on their own program, who want an objective read on pitch and volume each day. Singers, actors and anyone else curious about their vocal range may find the graphs interesting, but the sentences, the tone targets and the gender-mapped pitch axis are all built around transition-focused practice.
It is a measurement tool, and it behaves like one. The value comes from repetition over months, not from a single session. Anyone hoping for a program that tells them what to do next will find the app silent on that front, by design.
A daily mirror for voice practice
Voice Tools is worth installing if you are actively working on your voice and want to see, rather than feel, what it is doing. The live pitch graph, the balanced reading sentences and the reference tones cover the three things daily practice needs: a target, material and feedback. The privacy approach, with recordings neither saved nor sent anywhere, removes the usual hesitation about recording yourself.
Go in with the right setup and the right expectations. A quiet room helps, an external microphone helps more, and the app will not teach you technique or replace a therapist. What it will do is show you, five minutes at a time, whether the voice you are building is the one coming out. At a 4.3 average from thousands of ratings and over half a million installs, it appears to be doing that job for a substantial number of people.
The short verdict
A focused, private feedback tool for transgender voice practice, best with a quiet room and an external microphone.
What's new in version 2.0.177
Added a new Harmonics & Spectrum page Now practice using your Voice!!!
App specs
- Version2.0.177
- UpdatedMay 12, 2026
- Downloads500K+
- RequiresAndroid 5.0+
- PriceFree
- Age ratingEveryone
Voice Tools: frequently asked questions
Does Voice Tools change how my voice sounds?
No. The developer says the app shows visual feedback only and never changes the pitch of your voice; it is meant to sit alongside voice therapy. It records and plays back, but the analysis is the point rather than any processing of the audio.
Do I need an external microphone to use it?
The app runs on a phone's built-in microphone, but the developer notes that pitch analysis works best with an external one. On a phone mic, readings depend on a quiet room, since some handsets pick up plenty of background sound.
Are my recordings stored anywhere?
They are not. The developer says recordings stay on the phone and are never kept or sent anywhere, so you can record and play back inside the app without files piling up on your device.
How long should I practice each day?
The developer recommends roughly five minutes daily for a few months. That is a realistic frame for voice work, and it fits the way the app is built, with short reading passages and reference tones rather than long sessions.
What does the paid version include?
The app comes in a free, advert-supported version and a paid version without adverts. Paying from the settings screen takes the adverts away.
Pros
- Real-time pitch graph mapped to gender ranges
- Phonetically balanced sentences for daily reading
- Reference tones to listen to and mimic
- Recordings are not saved or sent off device
- Free version available; ads removable by purchase
Cons
- Pitch analysis works best with an external microphone
- Needs a relatively quiet environment
- No lessons or guidance provided
- Free version is supported by adverts
Download Voice Tools
by DevExtras
Free · In-app purchases · Contains ads · Official store listings