Private AI Models vs ScanDim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Private AI Models
Engage in AI conversations locally on your device without needing an internet connection or cloud servers. This app allows you to download and run various open AI models, keeping your data private and secure. Chat with documents, understand images, and utilize pre-built assistants for diverse tasks.
- Runs AI models entirely on your phone
- Completely offline functionality
- Chat with your documents (PDF, text, Markdown)
- Image understanding and analysis
- Step-by-step reasoning visualization
- Pre-built AI assistants
- On-device text-to-speech
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Chat with an AI that lives on your phone, not in the cloud. Private AI is an offline AI chat app: open models like Qwen, Gemma and GLM run entirely on your phone — no server, no account, and after a one-time model download no internet at all. YOUR AI, YOUR DEVICE Cloud chatbots send every word you type to a data center. Private AI computes the answer on your phone's own chip: your chats, your photos and the models themselves stay with you. Uninstall it and everything goes with it. WORKS COMPLETELY OFFLINE Download a model once, then chat anywhere: • On flights, subways and trips abroad • In dead zones and on unreliable connections • Whenever you want answers that stay private Switch on airplane mode if you like — the app won't notice. THE LATEST OPEN MODELS, PHONE-SIZED • Qwen 3.5 (0.8B, 4B, 9B) — fast, smart and multilingual • Google Gemma 4 (E2B, E4B) — mobile-first quality, 140+ languages • GLM 4.6V Flash — flagship-class vision for high-end phones • Ministral 3 — compact, with a 256k context window • Bring your own: load any GGUF model by URL (Hugging Face links work) Models are 0.8–6 GB downloads. A "Fits your device" badge reads your phone's RAM so you know what will run well before you download, the catalog is searchable and filterable, and interrupted downloads resume where they stopped. BENCHMARK IT ON YOUR OWN PHONE Run the built-in benchmark on any downloaded model to see exactly how fast it loads and generates on your hardware — tokens per second, GPU or CPU — and pick the model that fits. CHAT WITH YOUR DOCUMENTS Attach a PDF, text or Markdown file to any chat and ask about it: the text is extracted and searched on your phone, the model answers from the matching passages and tells you which ones it used. Contracts, papers, manuals, notes: the files are never uploaded. UNDERSTANDS IMAGES Every model in the catalog supports vision. Add the optional image-support file, then snap a photo or pick one from your gallery: read documents, translate signs, decode menus, describe scenes. WATCH IT THINK Turn on thinking mode and reasoning models show their step-by-step working in a collapsible panel above the answer — great for math, code and anything worth double-checking. ASSISTANTS Start a chat with a ready-made assistant: Tutor, Writing Coach, Email Helper, Translator, Code Helper, Summarizer, Chef or Travel Planner, each with its own instructions and one-tap starters. An offline translator for your next trip, no signal needed. A REAL CHAT APP • Markdown that renders: code blocks with one-tap copy, tables and lists • Streaming answers with a live tokens-per-second readout • Switch models mid-conversation from the chat header • A system prompt per chat, plus Creative / Balanced / Precise / Thinking presets • Edit, regenerate, copy, select text — or have any answer read aloud (on-device TTS) • Search your chats, pin favorites, light and dark themes • Back up every chat and setting to a single JSON file, and restore anywhere PRIVATE BY DESIGN • Conversations and photos are processed on your device, never in the cloud • No account, no sign-up, no server • GPU-accelerated by llama.cpp — Metal on iPhone, OpenCL on Snapdragon Adreno PRIVATE AI PRO Free to use, with ads that never interrupt an answer (offline, none load). Pro removes all ads and adds your own custom assistants and accent colors. Choose monthly, yearly (with a free trial for new subscribers) or a one-time lifetime unlock. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://llm.chinesepowered.com/privacy.html Formerly Personal LLM: same app, new name. Your questions are yours. Keep them that way.
ScanDim
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ScanDim transforms your iPhone into a professional 3D measurement tool. Using advanced AI-powered photogrammetry, capture precise dimensions of any object with just a few photos. Key Features: AI Photogrammetry: Take 12 photos around an object, and our AI analyzes the geometry to calculate accurate dimensions Interactive 3D Viewer: Visualize your scans as point clouds with smooth rotation and zoom controls Precise Measurements: Get length, width, height, volume, and surface area calculations Multiple Export Formats: Export your 3D data as PLY or OBJ files for use in other applications Measurement History: Save and organize all your scans for easy reference Dark Mode Design: Beautiful dark interface optimized for extended use Perfect for: Interior designers measuring furniture and spaces Online sellers documenting product dimensions DIY enthusiasts planning projects Architects and engineers doing quick field measurements Anyone who needs accurate object measurements How it works: Open the camera and start a photogrammetry session Walk around the object taking photos at 30-degree intervals Our AI processes your photos and generates a 3D point cloud View measurements, rotate the 3D model, and export your data No LiDAR required - ScanDim works on all iPhones using advanced AI vision technology.
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Verdict
The clearest difference is in-app purchases: ScanDim at none against Private AI Models's 3. ScanDim also leads on ads (none vs shown). On price, device support 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
Both are free to download. Private AI Models sells 3 in-app purchases, starting at $4.99 per month. ScanDim asks for nothing beyond the download.
| Parameter | Private AI Models | ScanDim |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 70 MB | 35 MB |
| Age rating | 12+ | 4+ |
| Developer | Nelson Lai | Frederic Arnaud-Meyer |
In-app purchases
Private AI Models
- Pro Monthly$4.991 Month
- Pro Yearly7 Days trial$19.991 Year
- Pro Lifetime$39.99
ScanDim
No in-app purchases
Questions
Is Private AI Models free?
Is ScanDim free?
Do Private AI Models or ScanDim have ads?
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