Aiko: On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately. 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 Aiko when transcribing recorded lectures into searchable text for studying 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.
On-device AI transcription app for Mac, iOS, and visionOS that converts lecture and meeting audio to text privately.
Voiso is a cloud contact-center platform with AI speech analytics that transcribes calls into searchable text, scores conversations, and generates automatic call summaries.
Aiko is a native transcription app for macOS, iOS, and visionOS, developed by Sindre Sorhus, that converts speech to text from meetings, lectures, and recordings entirely on-device. It uses OpenAI's Whisper model running locally, so audio never leaves the user's device, which makes it appealing for students and professionals with privacy requirements. Aiko transcribes both audio and video files in common formats such as .m4a, .wav, .mp3, .mp4, and .mov, and supports around 100 languages. Transcriptions can be exported in multiple formats, including JSON, CSV, and SRT subtitles, and the app includes a word-replacement feature to automatically correct recurring errors. It also integrates with Apple Shortcuts for automation workflows. Because Aiko prioritizes accuracy over speed, it does not perform live transcription while recording and currently does not include speaker detection, so it is best for transcribing recorded lectures, interviews, and meetings after the fact. The app is offered as a Universal Purchase with a free trial via TestFlight, making it a low-cost, privacy-first option for turning lecture and meeting recordings into searchable text. Pricing varies by plan. Check the official website for current pricing.
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
Aiko 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 | Aiko | Voiso |
|---|---|---|
| Core capability | Fully on-device transcription powered by a local Whisper model | AI call transcription converting audio into searchable text in 10+ languages |
| Standout feature | Support for roughly 100 languages | AI conversation scoring rating calls on a 1-to-5 scale across languages |
| Team usage | Transcription of audio and video files in formats like m4a, wav, mp3, mp4, and mov | Sentiment and emotion analysis detecting tone and customer satisfaction cues |
| Integrations | Export to multiple formats including JSON, CSV, and SRT subtitles | Automatic call summaries highlighting key topics and outcomes |
| Languages & capture | Word-replacement feature to auto-correct common errors | Keyword highlighting with custom lists for compliance and QA flagging |
| Best-fit workflow | Apple Shortcuts integration and Universal Purchase across Mac, iOS, and visionOS | Call recording with real-time dashboards and performance reporting |
Aiko
Choose Aiko if you need transcribing recorded lectures into searchable text for studying — strengths include strong privacy because nothing leaves the device.
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.
Aiko
Voiso
It depends on your workflow. Aiko is strong for transcribing recorded lectures into searchable text for studying, while Voiso is strong for quality assurance and compliance teams reviewing transcribed, keyword-flagged calls. Both transcribe and summarize meetings.
Aiko 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.
You can — some teams pair them when each covers a different part of the meeting workflow.
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