Lekh AI vs StoneFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lekh AI
This app offers powerful AI capabilities directly on your device, ensuring complete privacy and offline functionality. It supports advanced chat, image editing and generation, and even allows you to interact with your books. Integrate with Siri for hands-free operation and explore its local AI server capabilities.
- Offline AI chat with multiple models
- AI-powered image editing and generation
- Ebook reader with AI summarization
- Siri and Shortcuts integration
- On-device AI server with REST API
- Vision features for real-time analysis
- AI memory for personalized interactions
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Lekh AI brings the power of advanced AI directly to your iPhone, and iPad – completely private and offline. No internet required, no subscriptions, and your conversations never leave your device. Start your trial today! Now in 27 Languages! POWERFUL AI CHAT - Chat with state-of-the-art language models including Gemma, Qwen, Llama, and more - Get help with writing, coding, learning, brainstorming, and everyday questions - Attach documents and images for AI to analyze (with vision models) - Export conversations as PDF, text, or markdown AI MEMORY - Your AI remembers you across conversations - Share your name, preferences, or any information – it recalls them later - Ask "What's my favorite...?" in any chat and get the right answer - Full control: toggle on/off, clear anytime AI IMAGE TOOLS - AI Image Editing – Remove or replace anything in photos with inpainting - Object Remover – Erase unwanted objects with one tap - Photo to 3D – Generate depth maps from any photo - B&W Colorization – Bring old black & white photos to life with AI - 3D Splat Generation – Create immersive 3D models from a single photo - 3D Gallery – Save, browse, and share your 3D creations EBOOK LIBRARY - Import and read ePub and PDF books - Chat with AI about book content - Highlight passages and ask questions - AI-powered book summaries SIRI & SHORTCUTS INTEGRATION - "Hey Siri, Ask Lekh AI" – Chat hands-free with your AI assistant - "Hey Siri, Generate image with Lekh AI" – Create art using just your voice - Add Lekh AI actions to your custom Shortcuts workflows - Continuous conversation mode for natural back-and-forth with Siri AI IMAGE GENERATION - Create stunning images from text descriptions - Multiple models: SD 1.5, SDXL, and specialized Lekh AI models - Fine-tuned models: Photo Realism, Interstellar, Children's Stories, Fantasy - Style presets for quick creative results - 4x AI Upscaling – Enhance any image with RealESRGAN neural upscaler - All generation happens on-device LOCAL AI SERVER - Turn your iPhone into an AI API server - REST API – works with Python, curl, and any app - Access AI from any device on your local network - 100% private – data never leaves your WiFi NATURAL VOICE CHAT - Speak naturally with high-quality neural voice responses - Hands-free conversation mode - Multiple voice options including Kokoro TTS VISION FEATURES - Point your camera and ask questions about what you see - Extract text from documents, signs, and receipts (OCR) - Get real-time scene descriptions - Analyze images and photos with AI PRIVACY FIRST - 100% on-device processing – nothing sent to external servers - Face ID / Touch ID protection for your chats - iCloud sync keeps your conversations across devices (encrypted) - No account required, no tracking, no ads AI PERSONAS - Chat with unique characters – wizards, pirates, detectives, and more - Each persona has a unique personality and speaking style DESIGNED FOR iOS - Beautiful native SwiftUI interface - Optimized for iPhone, and iPad - Works completely offline after initial model download - Choose from dozens of AI models to match your device MODELS INCLUDED - Download only what you need: - Gemma 3 QAT (1B - 4B) – Google's latest, highly capable - Qwen 2.5/3.5 (1.5B - 4B) – Excellent for coding and reasoning - Llama 3.2 (1B - 3B) – Meta's powerful open models - OpenELM (270M) – Apple's ultra-efficient model - Vision models for image understanding - Image generation: SD 1.5, SDXL DEVICE REQUIREMENTS - iPhone 13 or newer recommended (6GB+ RAM) - iPhone 15 Pro / 16 Pro for larger models - iPad Pro for the biggest models - 5-15GB storage per model (varies) Experience the future of private AI – download Lekh AI today and keep your conversations truly yours. Terms: https://kailalabs.com/terms/ Privacy Policy: https://kailalabs.com/privacy-policy/ “Lekh AI includes built-in safeguards to prevent the generation of harmful, unsafe, or inappropriate content.”
StoneFlow
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Run your operations with clarity and control using a powerful, structured platform designed to simplify how you manage your bookings. StoneFlow helps you organize, track, and manage bookings with precision, giving your business a streamlined system to operate more efficiently every day. StoneFlow Premium Subscription: Unlock full access to all features including unlimited bookings, team management, job tracking, file uploads, delivery scheduling, and real-time updates. Subscription Details: - StoneFlow Premium - Monthly subscription - Full access to all features including: • Workflow management • Job tracking • Templates, fabrication & installations • Real-time updates and team collaboration Subscription required. Pricing is shown in-app and may vary by region. Privacy Policy: https://traveling-airboat-d45.notion.site/Stone-Flow-Privacy-Policy-33c5d09ed9d380fb9257cb29ecbb8ec9?source Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: Lekh AI at 3 against StoneFlow's —. StoneFlow's advantage is iOS requirement (15.0 vs 18.0). On price 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
Both are free to download. Lekh AI sells 2 in-app purchases, starting at $0.99 per month and StoneFlow sells 1 in-app purchase, starting at $39.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Lekh AI | StoneFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (72 ratings) — better | — |
| Positive reviews | 56.7% of reviews | — |
| Number of ratings | 72 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | — |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac — better | — |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1.6 GB | 1 MB |
| Age rating | 17+ | 12+ |
| Developer | Kaila Consulting Inc. | Reon Coetzee |
In-app purchases
Lekh AI
- Monthly Subscription3 Days trial$0.991 Month
- Lifetime$4.99
StoneFlow
- StoneFlow Monthly$39.991 Month









