Fenwrite

Legal

Privacy policy

Last updated November 4, 2026

Fenwrite is made and operated by Bitfuzed (PVT) LTD (“Bitfuzed”, “we”). This policy covers the app on iPhone, Apple Watch and Android and explains what happens to your recordings and your information. The short version: recordings are kept on your phone, audio is sent only to be transcribed, the words are backed up only if you sign in, the app shows no ads, and we don’t sell your data. Anonymous usage and crash reports help us improve the app, and app opens and purchases help us measure our Facebook and Instagram ads; you can switch either off, and neither ever includes what you recorded.

Your recordings

When you record, the audio is saved on your phone. To write it down, Fenwrite sends the audio to AssemblyAI, the speech-to-text service we use:

• While you record, the audio streams from your phone directly to AssemblyAI over an encrypted connection, using a short-lived pass our server issues. The words come back as you speak.
• For some recordings (one you paused, one whose connection dropped, one made on Apple Watch), the saved audio file is uploaded through our server to AssemblyAI to be transcribed again as a whole. Once your phone has saved that transcript, we ask AssemblyAI to delete it and the uploaded audio.

To write the summary, to-dos and name suggestions, the transcript’s text (not the audio) goes through our server to OpenAI. We ask OpenAI not to store it; under OpenAI’s API policy it may keep requests for up to 30 days to monitor abuse, and it doesn’t use API data to train its models.

Our server passes these requests along but doesn’t keep your audio, transcripts or summaries.

We ask first. Before your first recording, the app shows you what goes to AssemblyAI and what goes to OpenAI, as above, and asks for your permission. Until you agree, nothing is sent to either: you can’t start a recording, and recordings from Apple Watch wait on your phone. You can withdraw your permission at any time in Settings → Transcription & summaries; from then on nothing more is sent.

What stays on your phone

Your recordings’ audio, transcripts, summaries, speaker names and settings are stored on your device. You can delete any recording, or all audio, in the app. Fenwrite works without an account.

If you sign in (optional)

You can sign in with Apple (on iPhone), Google or an email and password. We use Firebase Authentication, a Google service, which stores your email address, a user ID and, for Google sign-in, your account’s basic profile. With Sign in with Apple and Hide My Email, we get a private relay address from Apple.

While you are signed in, the text of your recordings (titles, transcripts, summaries, to-dos and speaker names) is backed up to Cloud Firestore, a Google Cloud database, under your user ID, so it comes back on a new phone. Audio is never backed up. Security rules allow only your signed-in account to read or write your backup.

AI assistants (optional, Pro)

With Fenwrite Pro you can connect an AI assistant, such as Claude or ChatGPT, so you can ask it about your recordings. You choose to connect it: you add Fenwrite in the assistant’s settings and sign in to Fenwrite on our connect page. From then on the assistant can read your backup (titles, transcripts, summaries, to-dos and speaker names) when you ask it something. It can’t change or delete anything, and there is no audio in the backup to read. What the assistant reads is sent to its provider (for example Anthropic or OpenAI) under your account with them, and their privacy terms then apply.

To keep the connection working, our connector server (on Cloudflare) keeps the assistant’s access record and your Fenwrite sign-in session for it, encrypted, plus the assistant’s name and when you connected it. It reads your backup only to answer the assistant, as you, and doesn’t keep or log what it reads. You can disconnect an assistant in Settings → AI assistants or in the assistant’s own settings; a connection unused for 60 days ends by itself, and deleting your account disconnects every assistant.

What our server keeps

Our server (on Cloudflare) meters recording time so the free hour and Pro hours work. It keeps a random identifier for your installation, how many seconds you have recorded, short-lived records of each recording session and transcription job, and daily totals without personal details. It does not keep your audio, transcripts or summaries.

Purchases

Fenwrite Pro is sold and billed by the App Store or Google Play; we never see your payment details. The app shows our server the store’s proof of purchase (the App Store’s signed transaction or Google Play’s purchase token) so the server can check it with Apple or Google and give you Pro’s recording time. If you are signed in, the purchase is also linked to your account so Pro works on your other phones. The server keeps only what that needs: the plan and when it ends, the transaction ID or a fingerprint of the purchase token (with the token itself, to check renewals and refunds), your user ID if linked, and the installations it was checked on.

Usage and crash reports (Firebase)

Fenwrite uses Google Analytics for Firebase and Firebase Crashlytics, Google services, to learn how the app is used and why it crashes. Only the release versions from the App Store and Google Play send anything. They record:

• Usage events: that the welcome was finished, the Pro screen opened (and why), a purchase was started or completed (which plan), a recording started or finished (its length only as a range, such as “5 to 15 minutes”), a summary arrived, the free hour ran out, or reminders were turned on or off, set or opened (which kind of reminder, nothing more). Firebase adds the app version, device model, operating system, language, an approximate location (country or region, from the IP address) and a random identifier it creates for this installation.
• Crash reports: the type of error and where in the app’s code it happened, with the device model, operating system and app version. Not the error’s message, which could quote something you recorded.

Neither ever includes audio, transcripts, summaries, titles, speaker names, to-dos, your name, your email address or your account ID, and neither is linked to your account, even when you are signed in. Firebase doesn’t collect the advertising ID, and nothing it records is used for advertising. Google keeps usage events for up to 14 months and crash reports for 90 days. You can turn both off at any time in Settings → Privacy → Share usage & crash reports.

Measuring our ads (Meta)

We advertise Fenwrite on Facebook and Instagram. To learn which ads bring people in, the app includes Meta’s App Events SDK, which tells Meta Platforms when the app is opened and when a Fenwrite Pro subscription or free trial is bought (the plan, price and currency). These come with device details such as the model and operating system version, a random identifier Meta’s SDK creates for this installation and, on Android only, the device’s advertising ID.

On iPhone the app never asks to track you and doesn’t collect the advertising identifier (IDFA); installs are measured through Apple’s SKAdNetwork instead.

Meta never receives your recordings, transcripts, summaries, notes, your name, your email address or anything about your account. Only the release versions from the stores send anything. You can turn it off at any time in Settings → Privacy → Share installs with Meta; on Android you can also reset or delete your advertising ID in your phone’s settings. How long Meta keeps this data, and what else it does with it, is covered by Meta’s Privacy Policy.

Reminders

If you agree to them and allow notifications, Fenwrite sends a few reminders: a nudge if you haven’t recorded anything yet, a heads-up when your free hour is used up, and a word about Fenwrite Pro after you’ve seen the Pro screen. Each is sent at most once, in the daytime, and Pro subscribers get none about Pro. They are set on your phone by the app itself, from what is already on your phone (whether you’ve recorded, your free time, whether you have Pro); no server sends them and nothing extra is collected for them. Turn them off at any time in Settings → Notifications → Reminders, or in your phone’s notification settings.

Widgets and Apple Watch

Widgets show a small summary of your latest notes from the app on your device. The Apple Watch app records on the watch and sends the audio to your iPhone over Apple’s phone-to-watch connection; from there it is handled like any other recording.

Who else is involved

• AssemblyAI: turns the audio into text, as described above.
• OpenAI: writes the summary from the transcript’s text, as described above.
• Google (Firebase): sign-in, the text backup, usage statistics and crash reports, as described above.
• Meta Platforms: measures our Facebook and Instagram ads with app opens and Pro purchases, never your recordings or account.
• Apple and Google Play: app distribution, payments and subscription status.
• Cloudflare: runs our server, which meters recording time and checks purchases.

What we don’t do

• No ads in the app, and no tracking prompt or advertising identifier on iPhone.
• We don’t sell or rent your data, and your recordings, transcripts and notes are never shared for marketing.

Keeping and deleting your data

Data on your phone stays until you delete it or uninstall the app. Signing out removes your notes from the phone once they are backed up (and deletes the audio, which isn’t backed up); signing in again brings the notes back. Your backup stays while your account exists. To delete your account, its backup, its purchase links, its connected assistants and everything on your phone, open Fenwrite and go to Settings → Account → Delete account, or see how to delete your account. Deleting the account doesn’t cancel a subscription: cancel it in the App Store or Google Play.

Recording other people

Recordings often include other people’s voices. Please make sure everyone you record knows and agrees, as the law where you are may require.

Children

Fenwrite isn’t directed at children under 13, and we don’t knowingly collect their information.

Your rights

Depending on where you live, you may have the right to access, correct, export or delete your personal data. Write to us and we’ll help.

Changes

If this policy changes, we’ll update the date above and, for significant changes, tell you in the app.

Contact

Bitfuzed (PVT) LTD · [email protected]