Disk Decipher vs On‑Device AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Disk Decipher
Access and manage encrypted virtual disk images directly on your iPhone and iPad. Supports a wide range of encryption formats and file systems, offering secure viewing and playback of your data anywhere.
- Access encrypted virtual disks
- Supports VeraCrypt, TrueCrypt, LUKS, DMG
- Native file system handling
- Secure authentication options
- File Provider integration
- Media playback
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Access encrypted virtual disks on iPhone & iPad. Open VeraCrypt, TrueCrypt, LUKS, DMG, ProxyCrypt and more—securely, anywhere. Disk Decipher supports many advanced features. Full compatibility details and documentation are available on the support site: https://disk-decipher.app. Highlights: - Freedom of storage - Keep your disk images on your device, on an external disk or NAS, or in the cloud - Broad disk‑image compatibility – VeraCrypt, TrueCrypt, LUKS, DMG, Apple sparse image/bundle, ProxyCrypt - Native file‑system handling – FAT, exFAT, NTFS, HFS, APFS, Linux ext (*) - Rich viewer & media playback – Work securely with your files within the app, or use the File Provider integration across apps - Secure authentication options – Password, passcode, Touch ID, Face ID; Keyfiles, smart-card and FIDO2 security key. (*) exFAT and write support for HFS, APFS and NTFS are offered as optional in-app purchases to cover patent and licensing royalties.
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.
- 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
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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/
Screenshots
Verdict
The clearest difference is price: On‑Device AI at Free against Disk Decipher's $0.99. Disk Decipher's advantage is chart position (#178 vs unranked) and update cadence (weekly vs every 2 weeks). On rating, ratings volume, ads and in-app purchases 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
On‑Device AI is free to download; Disk Decipher costs $0.99 up front. Disk Decipher sells 8 one-off in-app purchases and On‑Device AI sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Disk Decipher holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 91 and 162 respectively. Written reviews point the same way: 72% of Disk Decipher's written reviews are positive against 64% of On‑Device AI's.
Disk Decipher ships an update weekly, On‑Device AI every 2 weeks. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | Disk Decipher | On‑Device AI |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.6 (91 ratings) — better | 4.4 (162 ratings) |
| Positive reviews | 72.2% of reviews — better | 63.6% of reviews |
| Number of ratings | 91 | 162 — better |
| Update frequency | Weekly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #178 — better | — |
| Devices | iPhone, iPad, Mac, Vision Pro | iPhone, iPad, Mac, Vision Pro |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 16 MB | 1.8 GB |
| Age rating | 4+ | 17+ |
| Developer | Richard Huveneers | Zijie Deng |
Customer experience
Disk Decipher
On‑Device AI
User reviews
Disk Decipher
From 91 App Store ratingsWhat we love
- 🚀 Works great with VeraCrypt/TrueCrypt
- 🔒 Secure access to encrypted data
- 👍 Convenient mobile access to encrypted files
- 🚀 Allows access to encrypted data across devices
- 👍 Well-designed app with good features
Room to improve
- 🐛 Occasional crashes or issues with certain file types
- 💰 Hidden costs for some file system support
- 🔒 Lacks support for keyfiles with VeraCrypt
- 👤 Poor customer support or communication from developer
On‑Device AI
From 162 App Store ratingsWhat we love
- 🚀 Game-changing AI assistant
- 🔍 Powerful search functionality
- 👍 Customizable and versatile
- 🌐 Seamless multi-device experience
- 💡 Innovative character-based interactions
Room to improve
- 🐛 Crashes on larger models
- 🔋 Heating issues on some devices
- 🔍 Slow and unreliable web search
- 💻 Buggy on macOS
Bugs and requests
Disk Decipher
Reported bugs
3 issues- Issues with mounting/opening encrypted containers
- Problems with file deletion or management within containers
- Incompatibility with certain VeraCrypt/TrueCrypt features
Requested features
4 requests- Add support for editing/modifying files within encrypted containers
- Improve Dropbox/cloud integration and usability
- Expand support for additional file systems (e.g. APFS, ext4)
- Implement dark mode or other UI improvements
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 moreShow fewer
- HomeKit integration
- Improved documentation
- Enlarged agent input window
- Per-agent model assignment
In-app purchases
Disk Decipher
- Small Donation$0.99
- Medium Donation$1.99
- exFAT filesystem support$2.99
Show 5 moreShow fewer
- APFS write license$2.99
- NTFS write license$2.99
- HFS write license$2.99
- Large Donation$3.99
- All filesystem licenses$7.49
On‑Device AI
- Pro Member Subscription$3.991 Month
- Pro Member Subscription$34.991 Year
- Lifetime Pro Member$49.99
- Lifetime Pro Member$99.99









