How much does Voice Translator app development cost?

9 min readMay 10, 2022

The world is witnessing a new age of technology. The latest developments in Machine Learning and AI created a favorable ground for the development of apps of one in a kind in different niches. Voice Translator apps are apps that help travelers and the business community to communicate freely even without knowing a language. Whether you are a person with a genuine interest in voice translator apps or an entrepreneur that is interested in how to create a voice translation app, this article is for you. We will cover everything from features to tech stack to cost development.

Before we proceed to more details, let me give you an answer to the question ‘how much does voice translator app development cost’.

The fun is that it won’t cost you a fortune. An advanced voice translator app will cost something between $27,000 and up.

If this was the only question you were interested in, you may stop right here. We are going to dive into more details of voice translator apps in the following sections.

Growing Popularity of Voice Translator Apps: Latest App Trends and Statistics

Why are voice translator apps growing in popularity and why do so many people think of how to create a voice translation app?

Let me give you a small shocking statistic. The number of travelers throughout the world has increased 56-fold since 1950. Today, this number is 1.4 billion international arrivals per year against 25 million tourist arrivals in 1950. This is the data of the United Nations Tourism Organization. With voice translator apps, the language barrier is no more an issue for travelers.

So, what is trending in the voice translator app market?

  • More languages are covered. For example, iTranslate supports translations in over 100 languages.
  • You don’t have to have the internet to translate. Some apps like Google Translate, Apple Translate, Microsoft Translator, and iTranslate can work offline.
  • Wearables are trending. These are specialized devices providing real-time translations.
  • Translation has become more accurate.
  • Voice translator apps have started understanding dialects.
  • The real-time translation may be provided for conference calls and business meetings while they are in progress.

Now let’s look at some statistics.

  • In 2020, 52% of people who were users of voice assistants applied the applications daily (NPR)
  • The total cost of the speech to speech translation market was USD 333.7 million in2020. This figure is estimated to grow up to USD 576.99 million in 2026.
  • Chinese are among the first as users of online applications.

Types of Voice Translator Apps to Consider in 2022

Voice translator apps can be of different types. Most apps integrate several types into one app.

Offline translator apps

An offline translator app allows you to translate texts into a language of your choice even if you don’t have an internet connection. With an offline translator app, people can converse in two languages in real-time, transcribe their voices or detect handwriting. If you are using offline functionality, you need to download the language pack beforehand. Once you install the app, make sure you download the offline resources.

Examples of offline voice translator apps include Google Translate, Apple Translate, Microsoft Translator, and more.

Online translator apps

There are some apps that require an internet connection to function. Some apps are free for online functionality but require pay for offline service. For example, Itranslate asks for payment for offline services.

Speech-to speech translation apps

Voice recognition technologies have opened opportunities for the rise of speech-to-speech translation apps. The voice-assistant revolution has taken these apps to a new level. With advances in neural network machine learning and a pool of 6.6 billion smartphone users, these apps are able to understand not only just words but grammar. They also understand informal speech and dialects.

Text-to-speech translation apps

The technology is rather advanced and apps recognize different pronunciations and dialects. But sometimes you need to turn to text-to-speech functionality and here is when this feature comes in handy.

Image-to-speech translation apps

The technology is so advanced as to transcribe an images into a textual format.

Features and Functionalities of a Successful Voice Translation App

Basically, almost all translation apps have the same features and functionalities. Below is the breakdown of features of some of the most successful apps.

Translate a conversation

The apps translate a live, captioned conversation which can be done directly in your browser from a mobile device or computer.

Translate conferences

Today a lot of apps offer features that allow translation of conferences. This feature is not only useful for increasing an app’s user base but also for generating money.


You can speak two languages in one microphone for one-on-one conversations. Or, alternatively, you can use a single microphone.


The apps not only translate texts but can share the translations via email, text, or social media. The users can look for different meanings and find the best alternative or they can listen to translations at different speeds.


This feature allows translating the text into photos with the app’s built-in camera viewer. The same can be done offline.


The number of languages determines the popularity of your app. Google Translate, for example, supports 109 languages. It can support photo translations for 37 languages, 32 voice translations in “conversation mode”, and 27 live video imagery in “augmented reality mode”.

Augmented reality mode

This feature allows translating objects and text using Augmented Reality. The experience is rather immersive and engaging that seamlessly blends virtual translation with the real world.

Development Team and Tech Stack Required to Develop Voice Translator App

Needless to say that the development team you hire will determine the success or failure of your app. Therefore, careful study is needed of the portfolios of the development team. If you are going to compromise on quality for the sake of a low budget, remember that your business is at stake. To find the best talent, you should be willing to look locally and abroad and consider whether a remote solution works for your business. Here is how to choose the right development team.

  • Recruitment agencies
  • Google search
  • Review Agencies
  • Behance
  • Twitter
  • Facebook
  • Linkedin
  • Dribbble.

When it comes to the tech stack, here are the two main technologies empowering the new voice translation applications.

Machine Learning

The rise of Machine Learning is the source of most voice translator apps. Machine Learning functions based on neurons and dendrites. These are responsible for getting information, processing, and generating results.

Neural Machine Translation

Let’s look at what Google Translate uses. Google utilized what is called NMT or neural machine translation. The NMP is rather popular. It uses an artificial neural network capable of deep learning. In fact, what the NMT does is convert words to numbers so that the computers can understand speech.

Here is a list of tech stacks used in voice translator app development:

  • Sketch
  • Xcode
  • AWS
  • Fabric iOS
  • Google Analytics
  • Google API
  • MEAN Stack
  • Mantis BT
  • Android Studio
  • Sass
  • Sendinblue
  • Google Webmasters
  • Stripe
  • swift iOS
  • ZOHO.

Choosing the Best Voice Translator App Monetization Model

It seems that most translator apps are free and don’t ask for any money. How do they generate revenue after all? Here are some recommendations for the monetization of a voice translator app.

Offer more languages

You can generate revenue if you can offer more language pairs than, for example, Google.

Offer typing free features

An example is a voice-to-voice translation app.

Offer freemium with paid services

For example, you can offer a free translation app with the option to pay for a human translation service.

Promote the app in countries totally dependent on international tourism

This list of these countries is huge. Included are countries like Syria, Austria, Panama, Tunisia, etc.


Some of the apps generate money from advertisements but this should not affect the user experience.

How Much Does It Overall Cost to Build a Voice Translator App in 2022?

If you are interested in how to create a voice translator app, the cost is perhaps number one in your mind. You will get more info in this article on how much it costs to build an app in 2022. But let’s get back to this blogpost.

At the beginning of this article, we stated that it will cost something between $27,000 and up. But saying that opens a lot of questions. How much up? What determines the cost?

Let’s dive into these issues.

Basically, there are two factors that determine the cost. One is the complexity of the app and the number of features. The second is the cost of the development team.

The more features your app has, the more time will be required for app development. This means you will pay for more hours.

The cost of the development team primarily depends on the location of your team. In the following part of this article, we will come up with a suggestion for finding a team in Armenia that has recorded success over the few years. To know more about cost development read one of our articles on how to create a voice translation app.

But now, let’s dive into the issue of why to choose us. Why is Addevice a good choice when it comes to voice translation app development?

Why Choose us to Develop Voice Translator App?

In this section, we will provide you with a review of our company Addevice and mention some of the reasons to choose us for the development of a voice translator app.

Addevice is a software development company located in Armenia. It started 8 years ago and has reported an unprecedented growth ever since. With 70+ projects completed and USD 600,000 generated money for startups, it is one of the top companies in Eastern Europe. Here we share some of the top reasons to choose Addevice as your development and maintenance company.

Application Development Consultation: Our team can help you convert your business idea into reality. You just need to drop us a line to discuss even the most general idea. Our creative team will shape the idea into a practical solution and discuss details in a free consultation.

Application Testing and MVP development: We perform in-depth app testing at every phase of application development. MVP development is part of our strategy and we collect and adjust the app according to testing results. In the end, we deliver an efficient and bug-free application.

Application UX/UI: Our dedicated team of designers can satisfy all your business requirements and build an app that draws the user’s attention at first look.

Application Integration: Our team will build a bridge between could application hosted on-premise with the best app integration. This means that independent applications can operate together to generate more revenue for your business.

Application maintenance and support: We provide maintenance support and service to ensure the smooth functioning of your business.

Our experience in translation app development: We are proud of the upcoming release of the application iDict developed by our team. iDict is a real-time language translation and communication app that applies machine learning functionalities. The app will be a new say in the translation industry with an automatic Natural Language Development feature. Users can hear the translation in their own voice and not the voice of a robot which adds value to the app. With Chat Translator, you can translate any chat in real-time into your native language in over 100+ languages. The Live Chat feature allows real-time translation. This means that the translation is on while you are talking so you don’t have to worry about keeping your colleague or friend waiting.

Contact us for a free consultation.

Wrapping up

Voice translation apps surely have a place in the market. And even with the existence of the industry giants, you can still compete and have your piece of the pie. To do that, you need to study the market and identify the gaps. We provided you an overview of a voice translation app with features, tech stack, cost, etc. Now it’s your turn to take the big step and contact a development company. With Addevice, your idea can become something bigger than you fathom now. Drop us a line to talk more.




You’ve got vision and goals. We’ve got expertise and a solid process. Let’s work together and bring them to life.