Audio to text
Automatic speech-to-text for meetings, interviews, lectures, podcasts, legal, and medical recordings.
AI SaaS product
Fliter AI Case Study
SaaS · AI · Media
We designed and engineered Fliter.ai — a browser-based speech platform where anyone can upload a file, pick a language, and receive a transcript by email. The same product now sells subscriptions, speaker identification, AI summaries, and a five-module media suite.
- 100+ languages
- Subtitles
- AI dubbing
- Live captions
fliter.ai
100+
Transcription languages
98.86%
Recognition accuracy on high-quality audio
5
Products in one platform
1GB / 5h
Max file size and duration
The Challenge
The client needed a consumer-grade transcription product that non-technical users could finish in a few clicks — no desktop install, no waiting on a sales call. Competitors were either too expensive, too technical, or limited to a single format. They also needed a paid SaaS layer so the free converter could grow into a real business.
Our Solution
Apzzo built a self-serve audio-to-text SaaS covering transcription, subtitles, dubbing, and live captions
- Audio to text
- Video subtitles
- AI video dubber
- Translation
- Live captioning
- AI summary
Key Features
Video subtitles
Automatic captions for reach and accessibility, plus a manual path when wording has to be exact.
AI video dubber
Localized voice tracks so the same video can ship in more than one language without a studio recut.
Translation
Transcript and subtitle translation layered on the same media pipeline.
Live captioning
Real-time captions for conversations and events, not only uploaded files.
AI summary
Automatic recap of the transcribed conversation so users do not have to reread the full text.
Product screens
Interface work from the live Fliter.ai product — the same screens customers use.
fliter.ai
“Convert speech to text in a few clicks. Your best online free transcription tool.”
Fliter.ai
What the Fliter team and users say
“We asked Apzzo for a transcription product a first-time visitor could finish without a sales call. They turned the homepage into the converter, then grew it into subtitles, dubbing, and live captions without breaking that simple path.”
“The drag-and-drop flow is the whole pitch. Upload a file, pick a language, get the transcript by email. That is the product we wanted on day one, and it is still what new users hit first.”
“Paid plans, speaker identification, and the human-transcription upsell sit on top of the same pipeline. Apzzo did not bolt monetization on later — they designed room for it from the converter.”
How we built it
01
Phase 1: Product UX — the uploader is the homepage
We started from the job to be done, not a feature list. Visitors should understand the product and start converting before they scroll. The homepage hero is a file picker with format, size, and duration rules in plain language, then a three-step walkthrough: upload, choose language and email, receive the transcript.
- Drag-and-drop upload as the primary call to action
- Explicit limits (1GB, 5 hours) so failed uploads are rare
- Email delivery for users who are not ready to create an account
02
Phase 2: Conversion pipeline
The conversion path had to survive messy real-world media. We wired format ingest, language selection, speech recognition, and email delivery into one job: file in, transcript out. The 72-hour expiry on download links keeps storage lean while still giving users time to retrieve the result.
- Audio and video ingest across consumer and production formats
- Language picker covering 100+ locales
- Transcript delivery with a timed download link
03
Phase 3: Product suite around the core converter
Transcription is the wedge. Growth comes from adjacent jobs on the same file. We expanded Fliter into automatic video subtitles, a manual subtitle path for accuracy-critical work, AI video dubbing, translation, and live captioning — so a single upload can serve accessibility, distribution, and localization.
- Automatic and manual subtitle workflows
- AI dubbing and translation for multilingual distribution
- Live captioning for real-time use
04
Phase 4: Monetization and growth layer
The free converter attracts demand. Paid plans capture teams that need minutes, speaker identification, local export, and lifetime file access. A human transcription offer sits above the AI path for legal, medical, and academic work that cannot tolerate model error. SEO landing pages (MP3 to text, WAV to text, language-specific transcription) capture intent around the core product.
- Basic 600 min / Pro 1,200 min / Business unlimited
- Speaker identification and AI conversation summaries
- Human-made transcription: native transcribers, speakers, timestamps, 24/7
Technology
Speech recognitionVoiceMedia transcodingCapabilityEmail deliveryAI layerSubscription billingCapabilitySpeaker diarizationCapabilityNeural translationCapability
Business Value
- Shipped a live, self-serve product at fliter.ai with a drag-and-drop conversion flow.
- Covered 100+ transcription languages, including English, German, Spanish, French, and Hindi.
- Launched five product surfaces: audio to text, video subtitles (automatic and manual), AI video dubber, translation, and live captioning.
- Packaged monetization into Basic ($9.99), Pro ($19.99), and Business ($99.99) plans, plus a human-made transcription upsell (99% accuracy, 24h turnaround).
- Built privacy into the free converter: files are not stored, the site runs on SSL, and email links expire after 72 hours.
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