VITO: VITO is a mobile app from ReturnZero that automatically transcribes recorded phone calls into searchable text with speaker labels and summaries, optimized for Korean. Voiso: Voiso is a cloud contact-center platform with AI speech analytics that transcribes calls into searchable text, scores conversations, and generates automatic call summaries. We compare them on cost, capture approach, and day-to-day fit so you can choose faster.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist VITO when reviewing and searching the content of past phone calls matters most, and Voiso when sales and support managers scoring agent performance and coaching from call summaries matters most. Try them side by side on real calls before deciding — needs vary by team.
VITO is a mobile app from ReturnZero that automatically transcribes recorded phone calls into searchable text with speaker labels and summaries, optimized for Korean.
Voiso is a cloud contact-center platform with AI speech analytics that transcribes calls into searchable text, scores conversations, and generates automatic call summaries.
VITO (비토) is a call-transcription app developed by ReturnZero Inc. (리턴제로), a Seoul-based speech-AI company. It automatically converts recorded phone calls into readable, chat-style text using ReturnZero's proprietary speech-recognition engine tuned for conversational Korean. Rather than joining live virtual meetings as a bot, VITO works from a phone's call-recording function: once a call is recorded, the audio is transcribed, with speaker identification distinguishing participants, and users can later read, keyword-search, replay specific segments, and review summaries of past conversations. It also supports bulk conversion of previously recorded calls. VITO is available on iOS and Android, with PC/web access to view transcripts, and offers cloud storage so call history is preserved across devices. The company also exposes its underlying RTZR speech-to-text technology as a separate developer API. VITO is aimed at everyday users and professionals such as real-estate agents, delivery drivers, office workers, students, and small-business owners who need to revisit, search, or share the content of their phone conversations.
Best suited for
Voiso is a cloud-based contact-center platform built for sales and customer-service teams, combining voice, SMS, and messaging channels with AI-driven analytics in a single workspace. Its speech analytics suite processes recorded call audio through speech-to-text and natural-language pipelines, transcribing calls into searchable text across more than ten languages, including English, Spanish, French, and Arabic. Transcripts can be navigated, searched, and flagged against predefined or custom keyword lists to support quality assurance, compliance, and agent training. Beyond raw transcription, the platform applies AI to score conversations on a 1-to-5 scale, detect sentiment and emotional cues, and automatically generate concise call summaries that capture key topics and outcomes without reviewing full recordings. It is aimed at call centers, BPOs, and outbound and inbound teams in industries such as fintech, travel, retail, and e-commerce. Other platform capabilities include a predictive dialer, IVR and routing flow builder, CRM integrations, call recording, and real-time performance dashboards. Speech analytics features are available on its Pro plan and higher.
Best suited for
VITO is a free tier with paid upgrades (freemium); Voiso is a free tier with paid upgrades (paid). Always confirm current pricing on each vendor's site before buying.
| Feature | VITO | Voiso |
|---|---|---|
| Core capability | Automatic speech-to-text transcription of recorded phone calls | AI call transcription converting audio into searchable text in 10+ languages |
| Standout feature | Speaker identification across multi-party conversations | AI conversation scoring rating calls on a 1-to-5 scale across languages |
| Team usage | Chat-style transcripts with keyword search and segment replay | Sentiment and emotion analysis detecting tone and customer satisfaction cues |
| Integrations | Call summaries and follow-up reminders | Automatic call summaries highlighting key topics and outcomes |
| Languages & capture | Bulk conversion of previously recorded calls | Keyword highlighting with custom lists for compliance and QA flagging |
| Best-fit workflow | Cloud storage with PC/web access to transcripts across devices | Call recording with real-time dashboards and performance reporting |
VITO
Choose VITO if you need reviewing and searching the content of past phone calls — strengths include strong korean speech recognition from returnzero's proprietary stt engine.
Voiso
Choose Voiso if you need quality assurance and compliance teams reviewing transcribed, keyword-flagged calls — strengths include transcription and analytics are integrated directly into the contact-center workflow, including recording, dialing, and routing.
VITO
Voiso
It depends on your workflow. VITO is strong for reviewing and searching the content of past phone calls, while Voiso is strong for quality assurance and compliance teams reviewing transcribed, keyword-flagged calls. Both transcribe and summarize meetings.
VITO is a free tier with paid upgrades and Voiso is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Sure. Running both makes sense when their strengths don't overlap and the budget allows.
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