AI that runs on your devices, not on ours
Private AI for iPhone, iPad, and Mac: on-device processing stays on compatible hardware, and each product documents the network services its other features use.
Each app below runs a compatible model directly on the device, either Apple’s foundation model where available or an optional local model on supported hardware. There is no Studio AM AI server holding the content.
Read the engineering write-up-
Second Brain
Private memory: capture text or voice, search transcripts, and get cited answers from your own notes.
- Capture by typing, dictating, recording a voice memo, or sharing text from another app
- Voice memos remain on the device and become searchable through on-device transcription
- Ask in plain language; answers cite the exact notes they came from
More about Second Brain
- Notes are split on-device into small tagged ideas ("atoms") so recall can be precise
- Optional private iCloud note sync is off by default; Studio AM cannot read it
Built for: People who capture a lot and retrieve too little: researchers, founders, journalers, anyone who has typed "I know I wrote this down somewhere."
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Better Writing
A private writing coach for iPhone and iPad that rewrites, drafts from your notes, and explains corrections.
- Rewrite for Correctness, Simpler wording, Formal tone, Friendly tone, or Concision, with exact word-level changes
- Draft from supplied notes, prepare a reply from a screenshot you confirm, or ask questions about saved writing
- Use Apple’s on-device model where available or a pinned Gemma/LFM download; optional Kokoro Natural Voice also runs on-device after setup
More about Better Writing
- Share text, links, or images into the app; use widgets and five App Shortcuts without a Studio AM account
- Optional private iCloud sync, user-directed exports, and an explicit web-search handoff are documented network paths
- Optional model and voice files come directly from Hugging Face without writing, dictated audio, screenshots, transcripts, or saved app content; Studio AM receives no provider data, analytics, or tracking
Built for: Professionals and ESL writers polishing sensitive text: work email, essays, reviews, applications.
Get Better Writing on the App Store Details on Better Writing
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Pocket Lingo
A voice translator and hand-verified travel phrasebook that works with zero connection.
- Speak or type and hear the translation aloud; run two-way conversations
- Point the camera at a menu or sign to translate it in place
- A dietary profile flags allergens when reading menus
More about Pocket Lingo
- Curated phrasebook with emergency phrases and local etiquette notes, useful even with the AI idle
Built for: Travelers. Connectivity is worst exactly when you need translation most: planes, metros, basements, rural areas, roaming limits.
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Chatter
Private English conversation and roleplay practice with natural-phrasing feedback from an on-device partner.
- Speak or type in free-form conversation, four everyday situations, or five workplace roleplays
- See a more natural version, the exact changed words, and a short explanation after a learner turn
- Review pace, filler words, answer-length trends, and a focused recap from spoken practice
More about Chatter
- Use Say It Again to match the improved wording (it does not score pronunciation or accents)
- Read, search, export, and delete saved conversations after access ends; fresh AI practice requires a subscription or restored legacy lifetime entitlement
- Optional conversation-model and natural-voice files download directly from Hugging Face without sending practice content; the model stays in Chatter's app-local container, and Studio AM receives no product analytics or tracking
Built for: A2–B1 English learners who need private speaking practice for everyday situations and work, without a tutor schedule or cloud AI conversation.
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Sam
A scheduled Mac assistant with an iPhone board for reports, approvals, directions, and file drops.
- Run supported briefs, research, site health, and watches on a schedule from the Mac menu bar
- Review outcomes, messages, approvals, and capped report text from the paired iPhone app
- Use local models by default; web tasks contact requested sites, and cloud research is used only when the owner configures it
More about Sam
- Move selected records and attachments through the owner’s private CloudKit database; Studio AM runs no Sam server
- Refuse unsupported or unapproved work explicitly instead of claiming it succeeded
Built for: People who want recurring, inspectable chores handled on their own Mac, with a phone-sized board for review and approval.
In App Review Details on Sam
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Voice Ledger
Long-form recording and editable, time-aligned transcription for lectures, meetings, and interviews.
- Record multi-hour sessions with no app-imposed duration cap and see the storage time available before starting
- Transcribe on-device after the required Apple recognition assets are installed; audio is not sent to Studio AM
- Edit transcript lines while preserving their links to the corresponding audio moments, and name speakers manually
More about Voice Ledger
- Import owned audio, video, SRT, VTT, or text files and export audio, text, captions, or lossless JSON
- Run optional reports and questions with a compatible local model downloaded only after the user starts the transfer
Built for: Students, researchers, interviewers, and meeting-heavy professionals who need long recordings without cloud minute limits.
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Daily Vibe
A private mood journal and voice diary with AI that reflects instead of collects.
- Keep multiple journals; type, dictate without retained audio, or save a spoken entry locally
- Get gentle on-device reflections grounded in what you wrote
- Trends chart your patterns over weeks; you can ask questions about your own trends in plain language
More about Daily Vibe
- Entries stay local by default; optional private iCloud sync is off by default, and recordings never sync
Built for: Anyone building a mood or gratitude habit who is not comfortable putting their inner life in a cloud database.
The 7 AI-first apps at a glance
None of them needs a Studio AM account.
| App | What it does | Where the AI runs | Core AI offline | Price |
|---|---|---|---|---|
| Second Brain | Private meeting memory, on your device | On-device (compatible local model) | Yes, after setup | Monthly or annual subscription · current terms shown by the App Store |
| Better Writing | Private correction coach for work messages | On-device (compatible local model) | Yes, after setup | Eligible 3-day trial · Monthly or yearly Pro |
| Pocket Lingo | Offline emergency help, with private travel translation | On-device (compatible local model) | Yes, after setup | Monthly or yearly subscription · current local price in the App Store |
| Chatter | Private AI English speaking practice | On-device (compatible local model) | Yes, after setup | Subscription required for AI practice · App Store purchase sheet shows current terms |
| Sam | Scheduled Mac chores, reported to your phone | On-device (compatible local model) | Local chores; web tasks need a connection | Subscription options shown in the app |
| Voice Ledger | Record hours, transcribe offline | On-device (compatible local model) | Yes, after setup | Monthly: eligible 3-day trial, then $7.99 · Yearly: $39.99 |
| Daily Vibe | Private mood journal & voice diary | On-device (compatible local model) | Yes, after setup | Eligible 3-day trial · $4.99/mo or $29.99/yr |
Also running on-device AI
The apps above are built around on-device AI. These use it for one job inside a wider app. The same rule applies to both: the AI runs on your device, and there is no Studio AM account.
Common questions
Short answers about privacy, models, offline use, accounts, cost and devices.
Do these apps send my data to a server?
The AI processing in these apps runs on-device rather than on a Studio AM server. None requires a Studio AM account. Some apps may use Apple services for purchases or optional private sync; others may need a compatible model or voice download. Each app’s privacy page lists its exact network behavior.
What AI model do they use?
The active model depends on the app and device. Supported Apple Intelligence devices can use Apple’s on-device foundation model; some apps also offer a compatible local-model download on other supported hardware. Pocket Lingo’s enhanced model expands its language coverage. The product page and in-app setup show the exact path available on a particular device.
Do they work offline?
Their on-device processing works offline after compatible model setup. A model or speech-asset download, App Store purchase, optional private iCloud sync, or an external link still requires a connection. Sam’s web research and site or GitHub watches also require the relevant network service. Each product privacy page identifies its exact paths.
Do I need an account?
No. None of these apps has a Studio AM sign-up, login, or profile. Their privacy pages explain local storage, downloads, and any optional Apple service, such as private iCloud sync.
What do they cost?
Plans vary by app and can change. The App Store shows the current local price and trial eligibility before purchase; each app’s page (linked above) explains what remains available after a subscription ends. None is priced per AI message.
What device do I need?
Requirements differ by product: the line includes iPhone, iPad, and Mac apps. On-device models and speech assets require compatible hardware and current system software. Check the individual product page and App Store listing for supported platforms, then use the app’s setup check for the exact path on your device.