Comparison

On‑Device AI vs Stop & Think

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

Head to head
About

On‑Device AI

Transform your device into a private AI assistant for meetings and complex tasks. Features include speaker diarization, live transcription, and specialized subagents for research, analysis, and writing. Control your AI via messaging apps, with options for 100% offline processing or cloud connectivity.

Highlights
  • Speaker Diarization for meeting transcripts
  • Real-time live transcription
  • Natural AI speech generation
  • Deploy specialized AI subagents
  • AI-powered web browser automation
  • Control AI via messaging apps
  • 100% offline processing option
Read full description

On-Device AI puts chat, listening, transcription, notes, and research in one private app for iPhone, iPad, Mac, and Apple Vision Pro. Your data stays on your device. Download a model once and keep working on a plane, on the subway, or without a signal. Chats, documents, recordings, and notes stay on your device. Online providers and web features are optional and work only after you enable them. ONE APP, YOUR WAY Open every workspace from a customizable Menu. Keep favorites under Pinned and everything else close by under Available. AI CHAT Chat with local or cloud models. • Run local models from families such as Gemma, Qwen, DeepSeek, and Mistral, or connect your own provider account • Browse, download, and manage models that fit your device, including ones for text, vision, reasoning, and tools • Drop in documents, images, and scanned PDFs; approve private on-device OCR only when a PDF needs it • Fork any conversation and compare several models on the same prompt • Let the model use tools for calculations, web requests, documents, Calendar, and Reminders, and review proposed changes before they apply • Create reusable Agent Profiles, then add AI Skills, MCP servers, and tools from one clearer Agent Workflows setup • Keep facts you repeat often in Global Memory LISTEN LIBRARY AND RSS FEEDS Read less, listen more. • Turn PDFs, Markdown, plain text, web articles, and scanned books into a listening queue • Scan photographed pages, correct the OCR the app runs on device, and keep each page with its spoken text • Follow sites through RSS, Atom, and JSON feeds, then send articles to Up Next • Choose Apple voices or local neural voices, follow along in the reader, and set a sleep timer VOICE NOTE, VOICE TYPING, AND TEXT TO SPEECH Speak instead of typing, and listen instead of reading. • Record and transcribe meetings, lectures, interviews, and quick ideas • Dictate with Voice Typing on Mac or the voice keyboard on iPhone and iPad • Transcribe with Apple Speech, Whisper, Parakeet, Nemotron, Qwen3-ASR, MOSS, and other engines • Turn text, or text captured from a photo, into audio with Apple voices, Kokoro, Supertonic, VoxCPM2, IndexTTS2, and other engines • Export transcripts as text, subtitles, or Markdown AI SEARCH AND AI BROWSER Research with a second pair of hands. • Search the web in a conversation and let the model read the results for you • Browse with tabs, profiles, history, and downloads, then ask your model to read, assist, or act on the page • Hand a task to the browser agent, watch each step, and take over whenever you want KNOWLEDGE AND TEXT NOTE Give your AI your own material to work from. • Add PDFs, text, Markdown, code, images, and website content to a private searchable library • Write and edit Markdown notes in the app • Import AI chats, voice notes, Text to Speech items, and AI Search results • Tune retrieval and index edited content again APP HELP Ask how a feature or setting works. App Help answers from a guide that ships inside the app, keeps help out of your saved chats, and points to the right settings. MADE FOR APPLE DEVICES • Native layouts adapt from focused navigation on iPhone to category sidebars on larger screens • Settings are grouped by purpose, including Voice Typing, Agent Workflows, Models & Storage, Privacy & Data, Memory, and—on Mac—Instant Messaging • Widgets for Listen, Voice Note, Text Note, and Quick Actions • Siri, Apple Shortcuts, App Intents, the Mac menu bar, and keyboard shortcuts you can customize • Apple hardware acceleration for supported local models • Browse chat, transcription, speech, and embedding models in one Model Library • Store models internally, on an external drive, or on a shared volume, with separate tools for cleanup and recovery • Interface in English, Dutch, French, German, Italian, Japanese, Spanish, Portuguese, and Traditional Chinese EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stop & Think

This app offers a personal companion for managing anxiety, providing tailored exercises and visualizations to help you find calm during moments of stress or panic. It features smart heart rate monitoring and haptic breathing guidance for a comprehensive calming experience.

Highlights
  • Three anxiety gate levels
  • Smart heart rate monitoring
  • GPU-accelerated breathing visualizations
  • 150+ guided prompts
  • Haptic breathing guidance
  • Real-time support
Features
Read full description

Stop & Think is your personal anxiety companion, designed to help you find calm when stress rises. Whether you're experiencing light unease or a full panic moment, the app adapts to meet you where you are. THREE ANXIETY GATES • Soft Landing — For light unease. Body-focused grounding and gentle breathing exercises. • Rising Waves — For growing tension. Cognitive reframing techniques to quiet racing thoughts. • Acute Surge — For panic spikes. Safety-focused support and crisis-level calming strategies. SMART HEART RATE MONITORING Connect your Apple Watch to receive real-time heart rate tracking. The app automatically recommends the right anxiety gate based on your BPM, or let you choose manually when you know what you need. BEAUTIFUL CALMING VISUALS Immerse yourself in GPU-accelerated breathing visualizations. Watch dynamic wave animations and a breathing sphere that responds to your heart rate, creating a soothing visual anchor during anxious moments. 150+ GUIDED PROMPTS Each anxiety gate includes over 50 carefully crafted calming prompts covering breathing techniques, body awareness, cognitive reframing, and grounding exercises. HAPTIC BREATHING GUIDANCE Feel synchronized haptic feedback that guides your breath, helping you maintain focus without needing to watch the screen. DESIGNED FOR REAL MOMENTS Stop & Think was built with the understanding that anxiety doesn't wait. Open the app when you need it and immediately begin calming exercises tailored to your current state. Your breath is your anchor. Let Stop & Think help you ride the wave back to steady.

Screenshots

On‑Device AI4 screens
Stop & Think4 screens

Verdict

The call

The clearest difference is rating: Stop & Think at 5.0 against On‑Device AI's 4.4. Stop & Think also leads on in-app purchases (none vs 4). On‑Device AI's advantage is ratings volume (163 vs 1) and device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. On‑Device AI sells 4 in-app purchases, starting at $3.99 per month. Stop & Think asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stop & Think holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: On‑Device AI has 163 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

On‑Device AI ships an update fortnightly, Stop & Think monthly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
On‑Device AI versus Stop & Think: the parameters behind the verdict, then further details
ParameterOn‑Device AIStop & Think
PriceFreeFree
Rating4.4 (163 ratings)5.0 (1 ratings) — better
Positive reviews63.6% of reviews—
Number of ratings163 — better1
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, Apple Watch
Requires iOS18.017.0 — better
Further details — not scored
Size1.8 GB28 MB
Age rating17+4+
DeveloperZijie DengMohammed Sayf

Customer experience

On‑Device AI

All ratings162 ratings
Positive82.1%
Neutral8.0%
Negative9.9%
Written reviews107 reviews
Positive63.6%
Neutral15.9%
Negative20.6%

Stop & Think

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

On‑Device AI

Reported bugs

3 issues
  • Crashes on startup
  • Model selection issues
  • Inability to copy generated text

Requested features

9 requests
  • Automated multi-character conversations
  • Character set saving and syncing
  • Streamlined search integration
  • UI optimization for icons
  • Remote endpoint support for multi-agents
Show 4 more
  • HomeKit integration
  • Improved documentation
  • Enlarged agent input window
  • Per-agent model assignment

Stop & Think

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

On‑Device AI

Subscriptions2
  • Pro Member Subscription$3.991 Month
  • Pro Member Subscription$34.991 Year
One-time2
  • Lifetime Pro Member$49.99
  • Lifetime Pro Member$99.99
None

Stop & Think

No in-app purchases

Questions

Is On‑Device AI free?
On‑Device AI is free to download, with in-app purchases available.
Is Stop & Think free?
Stop & Think is free to download, with no in-app purchases.
Which has better reviews, On‑Device AI or Stop & Think?
Stop & Think is rated higher. On‑Device AI averages 4.4 out of 5 from 163 ratings, while Stop & Think averages 5.0 from 1 ratings.
Do On‑Device AI or Stop & Think have ads?
Neither On‑Device AI nor Stop & Think shows ads.
Which is updated more often, On‑Device AI or Stop & Think?
On‑Device AI ships an update fortnightly, and Stop & Think monthly. Most recently, On‑Device AI was updated on October 30, 2026 and Stop & Think on October 24, 2026.

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