Aiko vs Respeecher
Side-by-side comparison · Updated October 2026
| Description | Aiko is a high-quality, AI-powered audio transcription app that offers users the ability to convert speech to text directly on their devices, ensuring complete privacy. It leverages OpenAI's Whisper model to provide support for transcribing audio in over 100 languages. With features tailored for meetings, lectures, and more, Aiko integrates seamlessly into productivity workflows by supporting shortcuts and exporting transcriptions to various formats. The app is designed to run locally on macOS and iOS devices, adapting the model's size to the device's memory for optimal performance. | Respeecher offers several routes to synthetic speech. Voice Marketplace combines an AI voice library with text-to-speech and speech-to-speech conversion, including a Pro Tools plugin workflow. Speech-to-speech starts from a recorded performance; text-to-speech starts from a script. Respeecher Space is a separate real-time TTS API for voice applications, while custom Voice Lab projects cover bespoke voice work. Choose by input, delivery latency and integration, rather than assuming one subscription includes every product. For Marketplace, pay-as-you-go starts with five credits for $5, listed as 20,000 TTS characters or five speech-to-speech minutes. Larger packs currently display discounted prices of $15 for 16 credits, $27 for 30, $70 for 100 and $250 for 500. Subscription Creator includes 400,000 TTS characters and 90 STS minutes for $89 per month; Power includes three million characters and 900 minutes for $499 per month. The first-month offers are $44.50 and $249.50, not the ongoing monthly price. Annual billing is offered separately; its displayed monthly equivalents are not month-to-month charges. A TTS-only slider offers different character allowances, so check the selected allowance and renewal amount before subscribing. The FAQ advertises a three-day free trial, but Marketplace terms prohibit commercial projects on trial plans. Subscription minutes reset on the billing date without rollover; purchased credits expire after one year unless agreed otherwise in writing. Marketplace terms also restrict organizations exceeding $1 million in annual revenue to a custom subscription when using the service commercially. Space has separate pay-as-you-go pricing: its product page currently lists $2 per 60,000 characters, described as roughly one hour of audio. Character count is the stated billing unit; speaking duration varies. Start a voice-conversion evaluation with clean, isolated recordings, calibrate the source voice, and compare pronunciation, timing and performance against the original. Obtain explicit permission for a target person's voice and document the intended use. Respeecher's ethics page says client data is used to train AI voice models, so this is not a blanket no-training service. Its privacy policy describes purpose-based retention; the FAQ's account-deletion processing window of up to 30 days is not an automatic audio-file expiry promise. Agree project, access and deletion requirements before uploading confidential recordings. |
| Category | Speech-To-Text | Text-To-Speech |
| Rating | No reviews | No reviews |
| Pricing | Pricing unavailable | Paid |
| Starting Price | N/A | $5 |
| Plans | — |
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| Tags | AIaudio transcriptionspeech to textprivacyOpenAI Whisper | voice conversionspeech-to-speechtext-to-speechvoice actingreal-time TTS API |
| Features | ||
| On-device audio transcription ensuring privacy | ||
| Supports transcription in over 100 languages | ||
| Utilizes OpenAI's Whisper model for high-quality transcription | ||
| Seamless integration into productivity workflows with support for shortcuts | ||
| Exports transcriptions to various formats (JSON, CSV, subtitles) | ||
| Adapts the model's size based on device memory for optimal performance | ||
| High privacy with direct device processing | ||
| Supports audio and video file transcription | ||
| Designed for iOS and macOS devices | ||
| Does not support text editing within the app | ||
| Marketplace text-to-speech and speech-to-speech | ||
| Voice library and Pro Tools plugin workflow | ||
| Source-voice calibration for voice conversion | ||
| Pay-as-you-go credits and volume subscriptions | ||
| Separate Space real-time TTS API | ||
| Custom voice projects with explicit voice permission | ||
| View Aiko | View Respeecher | |
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