Comparison

Synapse vs Deep Notes AI

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

Head to head
About

Synapse

Features
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Speak, and Synapse turns what you say into an organized note with a title, a summary, key points and a list of action items. Everything happens on your iPhone: your voice is never sent to a server. Built for people who handle sensitive information, like lawyers, doctors, journalists and executives, and for anyone who would rather keep their ideas in their pocket. TRULY PRIVATE โ€ข Transcription and AI run on your device. No servers, no cloud, no account. โ€ข Works in Airplane Mode, on the subway or in the mountains. โ€ข We collect no data: no analytics, no ads. HOW IT WORKS โ€ข Tap and talk: a quick idea or a whole meeting. You see the text as you speak. โ€ข When you stop, your device's AI reads the whole transcript, however long: it adds a title, writes a summary, sorts the key points into sections and pulls out the action items. โ€ข The note keeps what you said, word for word, split into paragraphs where you pause. โ€ข Check off tasks, copy the note as Markdown or send it to Obsidian. KNOWS WHO SAID WHAT โ€ข Record a meeting or a conversation and each person gets their own turns in the note. โ€ข Tap a name to rename it: the change reaches the title, the summary and the action items too. IN 25 LANGUAGES โ€ข Transcribes 25 European languages, including English, Spanish, French, German, Italian and Portuguese. โ€ข It detects the language you speak, or you choose the language of the note. TURN VOICE MESSAGES INTO NOTES โ€ข Got a long voice message on WhatsApp or Telegram, or a recording in Files? Share it to Synapse and get a transcript, a summary and action items. โ€ข On iPad, drag one or several audio files onto Synapse and each becomes a note. โ€ข The audio is processed on your device and is never uploaded. FOR EVERY MOMENT โ€ข Apple Watch: capture an idea from your wrist. โ€ข CarPlay: dictate an idea from your car's screen and see your recent notes. โ€ข iPad: review and organize your notes on a bigger screen. NO SIGN-UP โ€ข No email, no password, no credit card. โ€ข No note limit: only your device's storage. UPFRONT ABOUT HOW IT WORKS โ€ข On first launch, Synapse asks before downloading its speech models: Parakeet, an open speech recognition model based on NVIDIA's work, and a small model that tells speakers apart (about 800 MB in total). They download once; after that everything works offline. โ€ข Titles, summaries and action items come from Apple Intelligence, built into the system. Synapse requires a device that supports Apple Intelligence (iPhone 15 Pro or later, or an iPad with Apple Intelligence) with Apple Intelligence turned on. From a thought to an organized note, without anyone else reading it.

About

Deep Notes AI

Features
Read full description

Turn conversations into notes you can actually use. Deep Notes records meetings, lectures, interviews and voice notes, then turns them into searchable transcripts, summaries, key points and action items. Go beyond transcription by creating tasks, asking AI questions about your notes, importing existing audio and PDFs, and keeping everything organized in one place. RECORD AND TRANSCRIBE Start a recording and let Deep Notes turn speech into text. Speaker labels make it easier to understand who said what, while automatically generated titles help keep your notes organized. GET AI-POWERED NOTES Every recording can become: * A full transcript * AI-generated summary * Key points * Action items * Speaker labels * An automatically generated title TURN NOTES INTO TASKS Important follow-up? Create tasks directly from your notes and action items. Keep decisions and next steps connected to the conversation they came from, instead of losing them inside a long transcript. ASK AI ABOUT YOUR NOTES Ask questions about the note you are viewing. Quickly find decisions, important details, commitments or anything you may have missed without reading through the entire transcript again. IMPORT AUDIO Already have a recording? Import existing audio files into Deep Notes and turn them into transcripts, summaries, action items and organized notes. IMPORT PDFs Bring PDFs into Deep Notes and keep important documents alongside your recordings and notes. Use AI-powered tools to work with imported content without having to switch between different apps. CONNECT YOUR CALENDAR Connect your calendar to keep your meetings, recordings and notes organized. Use your schedule alongside Deep Notes and create calendar events when something from your notes needs to happen later. SEARCH YOUR NOTES Find previous meetings, ideas, transcripts and notes without searching through individual recordings. Deep Notes keeps your content organized and searchable in one place. BUILT FOR * Meetings and one-to-ones * Lectures and classes * Interviews and research * Voice notes and ideas * Projects and follow-ups * Imported audio * PDFs and documents HOW AI PROCESSING WORKS Deep Notes uses cloud-based transcription and AI services to generate transcripts, summaries and other AI-powered content. Audio and other content may be sent to the service providers identified in our Privacy Policy when processing is required. AI-generated content can contain errors. Review important information against the original recording or source material. RECORD RESPONSIBLY Recording laws vary by country and region. Make sure you have any consent required by applicable law before recording other people. DEEP NOTES PRO Deep Notes Pro unlocks AI-powered features including transcription, speaker labels, summaries, action items and Ask AI. Subscription options, included usage, trial availability and pricing are shown inside the app before purchase. Subscriptions automatically renew unless canceled through your Apple Account settings. Terms of Use: https://deepnotesai.com/terms Privacy Policy: https://deepnotesai.com/privacy Questions or Need Support: info@deepnotesai.com

Screenshots

Synapse4 screens
Deep Notes AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Synapse at none against Deep Notes AI's 7. Deep Notes AI's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Deep Notes AI sells 7 in-app purchases, starting at $9.99 per 7 days. Synapse asks for nothing beyond the download.

UpkeepUpdate frequency

Synapse ships an update every 4 days, Deep Notes AI weekly. Both last shipped on October 31, 2026.

Scorecard2 real differences ยท 4 level
Synapse versus Deep Notes AI: the parameters behind the verdict, then further details
ParameterSynapseDeep Notes AI
PriceFreeFree
Update frequencyEvery 4 days โ€” betterWeekly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, Apple Watch โ€” betteriPhone, iPad
Requires iOS26.017.0 โ€” better
Further details โ€” not scored
Size19 MB39 MB
Age rating4+4+
DeveloperLuis Tiburcio de la Cruz FernandezZOKA YAZILIM TEKNOLOJI VE TICARET LIMITED SIRKETI

In-app purchases

None

Synapse

No in-app purchases

7 purchases

Deep Notes AI

Subscriptions4
  • Deep Notes Pro3 Days trial$9.997 Days
  • Deep Notes Pro Monthly$14.991 Month
  • Deep Notes Pro Quarterly$39.993 Months
Show 1 more
  • Deep Notes Pro Yearly$99.991 Year
One-time3
  • 120 Credits$2.99
  • 300 Credits$7.99
  • 600 Credits$14.99

Questions

Is Synapse free?
Synapse is free to download, with no in-app purchases.
Is Deep Notes AI free?
Deep Notes AI is free to download, with in-app purchases available.
Do Synapse or Deep Notes AI have ads?
Neither Synapse nor Deep Notes AI shows ads.
Which is updated more often, Synapse or Deep Notes AI?
Synapse ships an update every 4 days, and Deep Notes AI weekly. Most recently, Synapse was updated on October 31, 2026 and Deep Notes AI on October 31, 2026.

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