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Otter.ai vs NoteX AI: cross-platform meeting notes or an all-in-one phone app?

By Official AppDuo editorial team · Updated

Otter.ai logoOtter.ai7.1/10Freemium · $16.99/moNoteX AI logoNoteX AI7.2/10Freemium · $9.99/mo

Quick verdict

Otter runs on desktop too and links many work tools but transcribes few languages; NoteX is phone-only, cheaper to start and adds study tools.

Otter.ai comes from a US company and runs on the web, Mac, Windows, iOS, Android and as a Chrome extension. Its free tier gives 300 minutes a month. Google Play lists transcription in English, Spanish and French only. The company faces a class action over recording without everyone's consent, with no findings yet.

NoteX AI is published by Notionis Technologies (Singapore) and is available on iOS and Android only. Its website has a Vietnamese version, while the App Store lists an English-only app interface. Plus costs $9.99 a month. NoteX commits to not training AI on user content, though that content still passes through Google, OpenAI and Anthropic.

Head-to-head

Otter.ai leads on 4, NoteX AI on 6, 0 even

FeatureOtter.aiNoteX AI
Vietnamese transcription[6],[5],[11]Google Play lists English, Spanish and French only; the App Store adds Japanese. No official source lists Vietnamese.The homepage advertises multilingual transcription and translated summaries, but the sources AppDuo read do not list the languages.
→ Vietnamese is missing from Otter's published list. NoteX is the one worth trying, but test a real recording before paying.
Interface languages[3],[6],[11],[14]English only.The website comes in 7 languages, Vietnamese included; the App Store lists an English-only app interface.
→ NoteX lets you read its website in Vietnamese, even if the app menus may still be in English. Otter offers no Vietnamese option.
How far the free tier goes[1],[12]Basic: 300 minutes/month, 30 minutes per conversation, 3 lifetime file imports, 20 AI Chat queries/month, only the 25 latest conversations kept.Basic: 15 notes, 180 minutes of audio in total, 10 minutes of live transcription, 3 AI chats; no meeting bot, mind maps, slides or flashcards.
→ Otter's minutes renew monthly, enough for a few short meetings. NoteX states its free allowance as totals with no monthly reset listed, so it suits a trial more than ongoing use.
Cheapest paid plan for individuals[1],[12]Pro: $16.99/month, or $8.33/month billed yearly; 1,200 minutes/month, 90 minutes per conversation.Plus: $9.99/month or $89.99/year ($7.50/month); 1,600 minutes of audio in total, up to 5 hours per file.
→ Billed monthly, NoteX is $7 cheaper; billed yearly the gap is under $1 a month. Note that Otter grants 1,200 minutes a month, while NoteX Plus lists 1,600 minutes in total. Both pricing pages are in USD.
Team and business plans[1],[12]Business: $30 per user per month, or $19.99 billed yearly; up to 25 seats. Enterprise is custom-quoted.The pricing page has a Business tab but shows no plan details or prices.
→ Teams buying several seats can budget for Otter up front; NoteX has not published team pricing.
Platforms[3],[11],[14],[15]Web, Mac, Windows, iOS, Android and a Chrome extension.iOS and Android apps; the iPad version runs on Apple-silicon Macs. No dedicated desktop app or browser extension.
→ If you meet and edit notes on a Windows PC, Otter fits better.
Meeting bot and integrations[3],[17],[11],[15]OtterPilot joins calendar meetings; connects to Zoom, Teams, Google Meet, Slack, Salesforce, HubSpot, Jira and Notion, plus an MCP server for ChatGPT or Claude.Syncs Google or Outlook calendars; a bot joins Zoom, Google Meet, Teams and WebEx on paid plans only.
→ Otter syncs sales notes into CRMs and also links Slack, Jira and Notion. The NoteX integrations in the sources AppDuo read cover only calendars and meeting software.
What you can do with notes afterwards[3],[11],[12],[15]Summaries, action items, AI Chat questions and automatic CRM sync of sales notes.Summaries and chat with notes, plus mind maps, slides, flashcards, quizzes, podcasts and short videos; also accepts documents, links and YouTube.
→ Students who want lectures turned into study material get the tools built into NoteX; Otter leans toward office work.
Data use and AI training[2],[13],[14]Trains its own AI on de-identified recordings and transcripts with no separate opt-out described; the policy does not mention encryption.Commits to no AI training on user content and no data sales; content goes to Google, OpenAI and Anthropic for processing. The App Store label lists tracking via identifiers.
→ If you do not want your meetings used as training data, NoteX's policy is the safer read, though it remains the developer's own commitment.
Lawsuits and recorded incidents[8],[9],[16],[10]In re Otter.AI Privacy Litigation (alleged, no ruling): in August 2026 the court let wiretap and privacy claims proceed. In 2024, per Fortune, an emailed transcript exposed a private conversation; no authority has found Otter at fault.The sources AppDuo read record no lawsuit or incident.
→ Organisations with strict recording-consent rules should follow Otter's case before rolling it out.

Choose Otter.ai if…

  • You mostly meet in English and work on a computer or in the browser
  • Your team wants meeting notes pushed into Salesforce, HubSpot, Slack or Jira
  • You need a free plan whose minutes renew every month

Choose NoteX AI if…

  • You take notes mostly on your phone, in meetings and in lectures
  • You want flashcards and quizzes made from your lectures
  • You do not want your recordings used to train AI

What $16.99 buys on each side

Billed monthly, Otter Pro and NoteX Pro both cost $16.99. For that, Otter gives 1,200 minutes a month with a 90-minute cap per conversation, while NoteX Pro drops the total cap on recording and uploads and allows sessions of up to 5 hours. Billed yearly the picture flips: Otter Pro falls to $8.33 a month ($99.99 a year on the App Store), while NoteX Pro is $149.99 a year, or $12.50 a month. On the App Store, NoteX also sells weekly and quarterly Pro options and a $99.99 "Essential Lifetime" purchase. Otter prices per user, and some Trustpilot reviewers report unexpected charges after adding members to an account.

Meeting in Vietnamese: test before you pay

The transcription languages Otter lists on Google Play are English, Spanish and French, so anyone meeting in Vietnamese cannot count on Otter. NoteX claims multilingual transcription and advertises high accuracy without publishing its method, and the sources AppDuo read include no independent accuracy test for either app. The safest route is the free tier: 10 minutes of live transcription and 180 minutes of uploads in total are enough to try a few real recordings with regional accents and industry jargon. Per its website, SotaX operates NoteX in Vietnam.

Otter's lawsuit and recording consent

On 15 August 2025, a proposed class action was filed in the Northern District of California. According to Fisher Phillips, it alleges Otter records without the consent of all participants and uses the data to refine speech recognition. Per UC Today, four suits were consolidated as In re Otter.AI Privacy Litigation. A 13 August 2026 order kept federal wiretap, California privacy and Illinois BIPA claims alive. The case is at an early stage and the court has made no findings of fact. Otter argues it is a tool used at the direction of the meeting host. In 2024, Fortune reported that an Otter transcript emailed after a call included investors' private talk once a participant had left. No authority has found Otter at fault; a spokesperson said users fully control their settings and urged them to keep asking for consent. The sources AppDuo read record no controversy for NoteX, but they also do not describe how its bot alerts attendees. Whichever app you use, tell everyone before recording.

Where your recordings go

Otter's policy (effective 16 June 2026) relies on consent or legitimate interests to train on de-identified data and gives no specific retention periods. Deletion requests go to [email protected], an online form or a phone line, and Otter says it complies with the EU-U.S. Data Privacy Framework. NoteX contractually bars its three AI providers from training on the data, and states AES-256 encryption at rest, TLS 1.2+ in transit and deletion within about 30 days. The NoteX homepage mentions ISO 42001 but links no independent certificate. NoteX's commitments are self-reported and not independently audited.

Frequently asked questions

Can I use NoteX on a computer?

Per the App Store, the NoteX iPad app runs on Apple-silicon Macs. The sources AppDuo read describe no way to use NoteX on Windows.

Can I pay in VND?

Both vendors' pricing pages are in USD, and the sources AppDuo read show no VND price list. If you buy through the App Store or Google Play, check the price your store account shows.

Can I get a refund?

Otter's pricing page mentions no refund policy, though some Trustpilot reviewers say support refunded them. NoteX website purchases (via Lemon Squeezy) have a 14-day refund window excluding used services; app store purchases follow Apple's or Google's policy.

Can I move my notes from Otter to NoteX?

Otter's free plan exports TXT files only. NoteX accepts uploaded documents and audio files, but the sources AppDuo read describe no direct migration between the two.

Who makes these apps?

Otter.ai belongs to Otter.ai, Inc. (US) and its app launched in 2018. NoteX is published by Notionis Technologies Pte. Ltd. (Singapore) and reached the App Store on 9 September 2024; its privacy policy is issued by SotaX Technology JSC.

Sources

Numbers in the table refer to these sources, read on the dates shown.

  1. 1.Official pricing page · Vendor-provided · Nov 11, 2026
  2. 2.Official privacy policy · Vendor-provided · Nov 11, 2026
  3. 3.Official homepage · Vendor-provided · Nov 11, 2026
  4. 4.Official help center: export conversations · Vendor-provided · Nov 11, 2026
  5. 5.App Store listing · store · Nov 11, 2026
  6. 6.Google Play listing · store · Nov 11, 2026
  7. 7.Trustpilot: Otter.ai · review-site · Nov 11, 2026
  8. 8.Fisher Phillips: new lawsuit highlights concerns about AI notetakers · press · Nov 11, 2026
  9. 9.UC Today: Otter.ai fails to dismiss core privacy claims (2026-08-18) · press · Nov 11, 2026
  10. 10.Fortune: AI assistants and leaked post-meeting chatter (2024-10-06) · press · Nov 11, 2026
  11. 11.NoteX official homepage · Vendor-provided · Nov 13, 2026
  12. 12.NoteX official pricing page · Vendor-provided · Nov 13, 2026
  13. 13.NoteX privacy policy · Vendor-provided · Nov 13, 2026
  14. 14.App Store listing · store · Nov 13, 2026
  15. 15.Google Play listing · store · Nov 13, 2026
  16. 16.UC Today: the Otter.ai lawsuit and the meeting bot that kept recording (2026-04-30) · press · Nov 11, 2026
  17. 17.Wikipedia: Otter.ai · Community-reported · Nov 11, 2026

Prepared by the AppDuo Editorial Team from the sources cited in this article. AI assists with organising and cross-checking data; editorial responsibility remains with AppDuo.

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