We build and operate Briefcaster, our audio news app.
Data Concept Studio is an independent consumer AI company based in Kraków, Poland. We own and operate Briefcaster, an iPhone app, live on the App Store since July 2026, that takes the news topics, RSS feeds and YouTube channels you follow and turns them into a short audio briefing, written by AI and read aloud in a natural voice.
We design, build and operate Briefcaster ourselves, end to end, on Google Cloud. The app is free today; a paid consumer subscription is planned.
Free to use · iOS · English and Polish · Android version in development
Briefcaster at a glance
- Available
- On the Apple App Store since July 2026
- Languages
- English and Polish briefings
- Price today
- Free, with a monthly usage allowance
- Next platform
- Android, in development for Google Play
Most people follow more than they will ever read
A blog you trust, a handful of newsletters, three YouTube channels and the news on the subjects that matter to your work: keeping up with your own sources takes longer than most days allow. The usual answer is a feed you scroll, which rewards whatever is loudest, not whatever you chose.
Briefcaster starts from the other end. You say what you follow; it reads the new material, keeps what is worth your time and gives it back as a few minutes of audio you can play on the way to work, at the gym or over coffee. Every briefing is made for one listener and covers nothing that listener did not ask for.
What a briefing is
- Minutes long. A summary of what is new across your sources, not a replay of them.
- Linked to its sources. Each item points back to the article or video, so you can go deeper.
- Ready when you are. A fresh briefing every morning, or one on demand, kept in your feed to replay.
- Clearly labelled as AI-generated. The script and the voice are produced by AI, and the app says so.
From your sources to your ears, in three steps
Setting up a first briefing takes about a minute. After that, Briefcaster does the reading.
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Step 1
Pick your sources
Choose news topics, paste the RSS feeds of blogs and newsletters you read, and add the YouTube channels you follow.
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Step 2
AI reads and writes the script
Briefcaster collects what is new across your sources, picks what matters and writes a tight, conversational script in your language.
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Step 3
Press play
The script is narrated by a natural-sounding voice, or by two hosts in dialogue, and lands in your feed as an episode.
Who uses Briefcaster
People with a commute
Time in the car or on a train is time you cannot read. A briefing turns it into the part of the day you catch up on your field.
Readers of niche sources
Specialist blogs and long YouTube videos rarely make it into a news app. RSS and channel support bring them into the same briefing as the headlines.
Polish-speaking listeners
Few audio news products speak Polish well. Briefcaster writes and narrates briefings in Polish as a first-class language, not a translation.
Our planned business model
Briefcaster is a consumer subscription business in the making. Today the app is free to download and free to use, with a monthly allowance that covers everyday listening, and there is no paywall.
The revenue we are building towards is a paid tier sold through the App Store and, once the Android version ships, Google Play: a larger allowance for heavy listeners, more sources per feed, longer briefings and more voices. It is not live yet and no price has been set; the tiers will be published on our pricing page before anyone is charged. We may also offer an optional way to unlock extra briefings by watching an ad; if we do, it will be opt-in and described in the privacy policy, which already provides for it.
Our running costs are the AI models that write each script, the speech synthesis that reads it and the cloud infrastructure that stores and serves the audio. They grow with listening, not with headcount. The company is bootstrapped and funded by its founder.
Pricing and business model in detailBuilt and run on Google Cloud
Briefcaster runs entirely on Google Cloud, which is where we are growing it:
- Gemini on Vertex AI reads the collected material and writes each briefing script.
- Cloud Text-to-Speech narrates it, alongside a second speech provider for some voices.
- Serverless containers, a managed database and object storage run the service and keep every episode ready to replay.
- Infrastructure as code and automated tests gate every change before it reaches listeners.
Every briefing is generated by AI end to end, and the app says so, in line with Article 50 of the EU AI Act.
The company behind Briefcaster
Data Concept Studio is independently owned and run by Michał Szarek, its founder. His background in data platforms and machine learning supports a product the company owns: Briefcaster. He is responsible for its product direction, the iPhone app and the service that produces each briefing. The business is a Polish sole proprietorship, funded by its founder.
- Registered to
- Michał Szarek
- Based in
- Kraków, Poland
- NIP (tax ID)
- 9691673171
- REGON
- 542296618
Common questions
Does Briefcaster cost anything?
No. The app is free to download and free to use, with a monthly allowance that covers everyday listening. A paid tier with a larger allowance, more sources and more voices is planned; its price will be published before anyone is charged.
Which languages does it speak?
Briefings are written and narrated in English and Polish, including a two-host conversation format. The app's interface is available in six languages: English, Polish, German, Spanish, French and Ukrainian.
Can I listen without opening the app?
Yes. Every episode has a share link that plays in a web browser, and each listener gets a private RSS feed, so briefings can also be played in any podcast app.
Is a person writing the briefings?
No. Each briefing is selected, written and narrated by AI with no editor in the loop, and the app labels it as AI-generated. Items link back to their sources so a listener can check the original.
What happens to my data?
Briefcaster keeps an account, the sources you chose and the briefings made for you, stored on Google Cloud in the European Union, and does not sell personal data. An account can be deleted from inside the app at any time; the privacy policy lists every provider involved.
Is there an Android version?
It is in development. The account management and links that Google Play requires are already live; we will announce a release date once the app is through review. The Briefcaster page has a form to be told when it ships.
Questions about Briefcaster?
Listeners, press and partners write to one company inbox, read by the founder. We reply within one or two business days.
contact@dataconceptstudio.com