Plimm: AI Journal, Voice Diary

Plimm: AI Journal, Voice Diary

Private. Offline. Talks back.

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Free
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Released
July 16, 2026
Updated
October 23, 2026

Features

Plimm: AI Journal, Voice Diary screenshot #1 for iPhone
Plimm: AI Journal, Voice Diary screenshot #2 for iPhone
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Plimm: AI Journal, Voice Diary screenshot #4 for iPhone
Plimm: AI Journal, Voice Diary screenshot #5 for iPhone
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Plimm: AI Journal, Voice Diary screenshot #7 for iPhone
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About

Plimm is a private journal that talks back. Write, or just talk, and an AI that runs on your iPhone reflects on what you said. No account. Your entries are never sent to Plimm or any AI service. Turn on airplane mode and check: you can still write, talk and get insights. WRITE, SPEAK OR TALK IT THROUGH - Free writing: a calm, distraction-free diary. No prompts to fill in, no scores. - Voice journaling: speak your entry and Plimm transcribes it on the phone. Your recordings are never uploaded. - A companion that answers: talk something through with an AI that has read your journal. It listens, reflects and asks. WHAT IT NOTICES - Insights in plain sentences: what keeps coming back in your own words, without charts, streaks or mood scores. - Crisis support: if your writing suggests you may be struggling, Plimm shows real help, with verified crisis lines for the US, UK, Canada, Australia, New Zealand, Ireland, India, Singapore and South Africa, and your local emergency number everywhere else. FOR THE DAYS BETWEEN SESSIONS - Bookmark the moments that matter in a conversation, then turn a date range of them into a summary you can share with your therapist. - Export your entries whenever you like. - Face ID, Touch ID or passcode lock keeps the journal to yourself. PRIVATE BY DESIGN The AI downloads once and runs on your iPhone. There is no account to create and no Plimm server, so your entries are never sent to Plimm or any AI service, never sold, and never used to train anyone's models. Your journal is stored on your iPhone and, if you use iCloud Backup, in your own backup. Plimm sends anonymous usage data and crash reports so it can be fixed and improved; you can turn usage data off in Settings. WILL IT RUN ON YOUR IPHONE Plimm needs iOS 26 or later, about 4 GB of memory and 1 GB of free storage: an iPhone 11 or newer will work, as will an iPhone SE (3rd generation). The AI is a one-time 437 MB download, and Wi-Fi is recommended. Plimm checks your iPhone first and tells you plainly if it will not run, rather than quietly falling back to a cloud AI. FREE, AND PLIMM PRO Plimm is free to use. Writing is unlimited, and the free tier includes one AI conversation a day, voice takes up to 0:30, and your latest insight. Plimm Pro lifts the limits: conversations as often as you need, voice takes up to 5:00, and every insight. You pay for Pro once, and it includes every Pro feature added later: no subscription, nothing renews. Plimm is a journal, not therapy. It is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. If you are in crisis, contact your local emergency number. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in Plimm

3.0.1

October 23, 2026

This update fixes the AI download on iPhone. In 3.0.0 it stayed at 0 MB and never finished. It now completes, carries on from where it stopped if your connection drops, and keeps going after you close and reopen Plimm. Once it finishes, conversations, insights and voice journaling are ready to use.

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Subscriptions & In-App Purchases

Plimm Pro Monthly

Unlock on-device AI insights & pattern analysis.

$4.991 Month
How to cancel Plimm subscription ⁉️