Comparison

Otter Transcribe Voice Notes vs Aiko

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Otter Transcribe Voice Notes

This app offers real-time voice transcription for meetings, lectures, and conversations. It acts as an AI assistant, capturing slides, generating summaries, and allowing for collaborative editing and sharing of notes. Available in multiple languages and on web.

Highlights
  • Real-time transcription
  • Automated meeting notes & summaries
  • AI Chat for answers
  • Record & transcribe live
  • Share & collaborate
  • Searchable notes
  • Automated slide capture
Read full description

Never take meeting notes again. Otter AI is the fastest way to transcribe voice in real time. Get a meeting assistant that records audio, writes notes, automatically captures slides, and generates summaries. Available in English, Spanish, French and Japanese. Otter AI is also available on the web. Start for free. Trusted by over 10 million people and featured by Apple as "App of the Day" and "Editors' Choice." Automated meeting notes for Zoom, Google Meet, Microsoft Teams, and more. Stay connected and collaborative when you work from home. Otter transcribes all your meetings, interviews, lectures, and everyday voice conversations in real time, so you can focus on the discussion. KEY FEATURES • AI Meeting Assistant: get automated meeting notes & summaries • AI Chat: get answers and generate content • AI Channels: combine live conversations with async updates. Chat with teammates. • Record & transcribe live • Automated meeting notes & summaries • Share & collaborate • All notes are searchable & shareable • Edit & highlight • Organize & export • Import & sync Looking for a specific feature? Here are the details: RECORD & TRANSCRIBE LIVE • Instantly record in one tap • Transcribe in real time • Highlight key points to review later • Insert photos of whiteboard discussions, slides, etc. • Input audio via built-in mic or Bluetooth device ENRICH NOTES WITH AI • Gather information across all your conversations • Ask questions about a specific meeting • Generate follow- up emails • Automated Slide Capture during virtual meetings • Generate summary, outline and keywords after all meetings • Punctuate, capitalize, and break paragraphs automatically SHARE & COLLABORATE • Invite group members to view, edit, and highlight collaboratively • Add comments and assign action items • Share links externally SEARCH & PLAYBACK • Search the text so you don't have to scrub through the whole audio • Playback at adjustable speeds • Follow along the highlighted word as the audio is playing • Tap on any word to jump the audio to that spot EDIT & HIGHLIGHT • Edit the text to correct any errors • Tag the speakers to label the paragraphs and train Otter to identify speakers too • Highlight sentences in one tap IMPORT & SYNC • Import audio and video files • Upload from other call recording apps • Sync your calendars to be reminded to record your meetings and auto-title your notes • Import your contacts for easy sharing OPTIMIZED FOR iOS • Start/Stop recording with Siri Shortcut & home widget • Record via AirPods • Sync with iOS Calendar, Contacts & Camera Otter Pro Get more playback speeds, skip silence, and bulk export. Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can manage your subscriptions in Settings and auto-renewal may be turned off by going to your Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Need help? Check out our Help Center: https://help.otter.ai Terms of Service: https://otter.ai/terms-of-service Privacy Policy: https://otter.ai/privacy-policy

About

Aiko

Convert audio to text locally on your device using advanced AI. Export transcriptions as subtitles and fix common errors with a word-replacement feature. Supports over 100 languages for high-quality, private transcription.

Highlights
  • On-device AI transcription
  • OpenAI Whisper powered
  • Export as subtitles
  • Word replacement for corrections
  • Supports 100+ languages
  • Privacy-focused, no data leaves device
Currently charting
Read full description

High-quality on-device transcription. Easily convert speech to text from meetings, lectures, and more. The transcription is powered by OpenAI's Whisper running locally on your device. Nothing leaves your device. You can export the transcription as subtitles too. It has a word-replacement feature to let you automatically fix common mistakes. Aiko favors accuracy over speed. It does not do live transcription while recording. It does not currently have speaker detection. Try the trial first. See website. Note: Sharing from Voice Memos on iOS 26 does not work because of a iOS 26 bug outside of my control. Supports audio in 100 different languages: Afrikaans, Albanian, Amharic, Arabic, Armenian, Assamese, Azerbaijani, Bangla, Bashkir, Basque, Belarusian, Bosnian, Breton, Bulgarian, Burmese, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Faroese, Finnish, French, Galician, Georgian, German, Greek, Gujarati, Haitian Creole, Hausa, Hawaiian, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Javanese, Kannada, Kazakh, Khmer, Korean, Lao, Latin, Latvian, Lingala, Lithuanian, Luxembourgish, Macedonian, Malagasy, Malay, Malayalam, Maltese, Marathi, Mongolian, Māori, Nepali, Norwegian, Norwegian Nynorsk, Occitan, Pashto, Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Sanskrit, Serbian, Shona, Sindhi, Sinhala, Slovak, Slovenian, Somali, Spanish, Swahili, Swedish, Tagalog, Tajik, Tamil, Tatar, Telugu, Thai, Tibetan, Turkish, Turkmen, Ukrainian, Urdu, Uzbek, Vietnamese, Welsh, Yiddish, Yoruba The app was made possible thanks to Whisper by OpenAI and whisper.cpp by Georgi Gerganov. ■ FAQ ‣ Can I edit the text in the app? I don't plan to support any editing. Export the transcription and edit it in a proper text editor. ‣ Why is the app so large? The app delivers the highest quality transcription on the market for 100 different languages. Rather than asking why it's so large, the real question is how is it so small. ‣ Why is the transcription so slow? The app favors accuracy over speed. However, performance is expected to improve in the coming months. ‣ Why must I keep the iOS app open while it transcribes? iOS apps are fundamentally restricted from operating in the background for extended periods. ‣ Can I delete some of the languages to save space? This is unfortunately not possible. The model has all the languages stored together in a way that makes it impossible to remove just some languages. More FAQs on the website. ■ Technical details The app uses the Whisper medium or small model on iOS depending on available memory and the large v3 model on macOS. ■ Privacy The transcription is done locally on your device. Nothing leaves your device. ■ Support You can contact me through the feedback button in the app.

Screenshots

Otter Transcribe Voice Notes4 screens
Aiko4 screens

Verdict

The call

The clearest difference is price: Otter Transcribe Voice Notes at Free against Aiko's $24.00. Otter Transcribe Voice Notes also leads on ratings volume (79K vs 325) and update cadence (fortnightly vs every 6 weeks). Aiko's advantage is in-app purchases (none vs 10) and review sentiment (87% vs 55%). On rating, ads and chart position there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Otter Transcribe Voice Notes is free to download; Aiko costs $24.00 up front. Otter Transcribe Voice Notes sells 9 in-app purchases, starting at $16.99 per month. Aiko asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Otter Transcribe Voice Notes against 4.7 for Aiko. That said, the two scores are not equally well evidenced: Otter Transcribe Voice Notes has 79K ratings behind it against 325, so its average is the more settled of the two. Written reviews are what separate them: 55% of Otter Transcribe Voice Notes's written reviews are positive against 87% of Aiko's.

UpkeepUpdate frequency

Otter Transcribe Voice Notes ships an update fortnightly, Aiko every 6 weeks. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

Scorecard8 real differences · 3 level
Otter Transcribe Voice Notes versus Aiko: the parameters behind the verdict, then further details
ParameterOtter Transcribe Voice NotesAiko
PriceFree — better$24.00
Rating4.8 (79K ratings) — better4.7 (325 ratings)
Positive reviews55.0% of reviews86.7% of reviews — better
Number of ratings79K — better325
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
Best chart rank#19 — better#37
DevicesiPhone, iPadiPhone, iPad, Mac, Vision Pro — better
Requires iOS16.0 — better26.0
Further details — not scored
Size219 MB1.7 GB
Age rating4+4+
DeveloperOtter.ai, Inc.Sindre Sorhus

Customer experience

Otter Transcribe Voice Notes

All ratings79,250 ratings
Positive95.3%
Neutral2.0%
Negative2.7%
Written reviews1,381 reviews
Positive55.0%
Neutral8.6%
Negative36.4%

Aiko

All ratings325 ratings
Positive92.6%
Neutral1.5%
Negative5.8%
Written reviews309 reviews
Positive86.7%
Neutral4.2%
Negative9.1%

User reviews

Otter Transcribe Voice Notes

From 79K App Store ratings

What we love

  • 🚀 Excellent transcription accuracy
  • 👍 Convenient features like speaker identification and timestamps
  • 🚀 Fast and efficient transcription process
  • 👍 Versatile for various use cases (meetings, interviews, lectures)
  • 👍 Helpful for deaf/hard of hearing users

Room to improve

  • 🐛 Occasional transcription errors, especially with technical terms
  • 💰 Concerns about increasing subscription costs and reduced free minutes
  • 🐛 Buggy behavior and crashes reported by some users
  • 🔒 Privacy concerns around data usage for model training

Aiko

From 325 App Store ratings

What we love

  • 🔒 Privacy-focused transcription
  • 🚀 Accurate transcription
  • 👍 Easy to use
  • 🎉 Free and open-source
  • 💪 Powerful AI model (Whisper)

Room to improve

  • 🐛 Crashes and stability issues
  • ⏱️ Slow transcription speed
  • 🔋 Resource-intensive
  • 🤔 Inconsistent formatting

Bugs and requests

Otter Transcribe Voice Notes

Reported bugs

3 issues
  • Microphone not working consistently
  • Transcription stops unexpectedly during recordings
  • Difficulty organizing and managing recorded files

Requested features

5 requests
  • Ability to record and transcribe phone calls
  • Improved editing and formatting capabilities
  • Integration with note-taking apps and cloud storage
  • Custom vocabulary training and speaker recognition
  • Offline transcription mode

Aiko

Reported bugs

3 issues
  • Repeated sentences
  • Incorrect language detection
  • Transcription loss on app exit

Requested features

4 requests
  • Support for multiple speakers
  • Ability to select transcription model
  • Export options for timestamps and speaker labels
  • Background transcription mode

In-app purchases

9 purchases

Otter Transcribe Voice Notes

Subscriptions9
  • Otter Pro (monthly)2 variants$16.991 Month
  • Otter Pro (monthly)7 Days trial$16.991 Month
  • Otter Business (monthly)$30.001 Month
Show 6 more
  • Otter Business (monthly)7 Days trial$30.001 Month
  • Otter Pro (Yearly)$99.991 Year
  • Otter Pro (yearly)$99.991 Year
  • Otter Pro (yearly)7 Days trial$99.991 Year
  • Otter Business (yearly)$239.991 Year
  • Otter Business (yearly)7 Days trial$239.991 Year
None

Aiko

No in-app purchases

Questions

Is Otter Transcribe Voice Notes free?
Otter Transcribe Voice Notes is free to download, with in-app purchases available.
Is Aiko free?
Aiko costs $24.00, with no in-app purchases.
Which has better reviews, Otter Transcribe Voice Notes or Aiko?
Otter Transcribe Voice Notes is rated higher. Otter Transcribe Voice Notes averages 4.8 out of 5 from 79K ratings, while Aiko averages 4.7 from 325 ratings.
Do Otter Transcribe Voice Notes or Aiko have ads?
Neither Otter Transcribe Voice Notes nor Aiko shows ads.
Which is updated more often, Otter Transcribe Voice Notes or Aiko?
Otter Transcribe Voice Notes ships an update fortnightly, and Aiko every 6 weeks. Most recently, Otter Transcribe Voice Notes was updated on September 27, 2026 and Aiko on September 26, 2026.
Which is more popular, Otter Transcribe Voice Notes or Aiko?
Otter Transcribe Voice Notes currently peaks at #19 in the App Store charts, and Aiko at #37. Chart position reflects recent download velocity rather than total install base.

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