Lekh AI vs OpenVox Reader
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.”
OpenVox Reader
Transform any text into natural-sounding audio for offline listening. Import books, PDFs, documents, and web links. Choose from hundreds of voices, adjust playback speed, and save important sentences. Keep your documents private with local processing.
- Text to audio conversion
- Offline listening
- Import ebooks, PDFs, documents, web links
- Hundreds of natural voices
- Custom voice creation
- Adjustable playback speed
- Save important sentences
- In-document search
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Turn Reading Time into Listening Time OpenVox Reader transforms books, PDFs, documents, web links and text into natural-sounding audio, so you can keep reading while commuting, walking, exercising, resting or working. Import your content, choose from hundreds of voices, create your own custom voice, and listen at your preferred speed without sending your private documents to an online speech service. Listen to Almost Anything Bring all your reading into one simple library: • Import ebooks and PDFs • Add documents and text files • Save web links for listening • Scan printed pages • Paste or type text directly • Organize everything in one place OpenVox Reader can generate and play speech locally on your device, so once the required voices are downloaded, you can listen without an internet connection. Natural Voices You’ll Enjoy Choose from more than 200 voices across 30+ languages and find the voice that best suits your book, article or document. You can also create custom voices for English, German, Italian, Portuguese, and Spanish from a short voice sample using Pocket TTS and listen to your content in a voice you choose. Listen at Your Own Pace Adjust playback from 0.5x all the way to 2.5x with smooth, pitch-preserving audio. Choose convenient presets including: • 0.5x • 1.0x • 1.5x • 2.0x • 2.5x Faster playback is supported with optimized buffering and accurate elapsed and remaining-time calculations. Save Important Sentences Found something worth coming back to? Bookmark the sentence you are currently reading and access it anytime from Saved Sentences. You can: • Save or remove sentences instantly • Browse all saved passages • Filter your saved sentences • Jump directly back to the original location • Delete bookmarks you no longer need Search Inside Your Documents Quickly find words, phrases or sections without scrolling through an entire book or document. Search in Document provides result previews and lets you jump directly to each matching location. EPUB search is optimized chapter by chapter to keep memory usage efficient even with larger books. Listen Without an Internet Connection Keep listening on flights, trains, commutes or anywhere without reliable internet access. Speech generation happens locally, allowing downloaded voices and imported content to remain available when you need them. Private by Design Your documents are processed locally for speech generation rather than being uploaded to a cloud TTS service. OpenVox Reader is built for people who want convenient AI-powered reading while keeping control of their content. Track Your Reading Journey See how much you have actually listened and keep your reading momentum going with: • Listening time • Daily and weekly progress • Reading streaks • Recently opened content • Personal listening statistics Reading time is calculated from audio that was actually spoken, giving you a accurate picture of your listening activity. Made for iPhone and iPad Use OpenVox Reader across iPhone and iPad with iCloud sync for your library. Your content stays organized across your Apple devices, and one purchase unlocks the app on both iPhone and iPad. Read More, Even When You’re Offline Whether you’re travelling, exercising, relaxing, commuting or getting work done, OpenVox Reader helps turn spare moments into meaningful reading time. Download OpenVox Reader and start listening to your reading today.
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Verdict
The clearest difference is review sentiment: OpenVox Reader at 100% against Lekh AI's 57%. OpenVox Reader also leads on rating (4.8 vs 4.1) and monetization model (free vs free with in-app purchases). Lekh AI's advantage is ratings volume (72 vs 6). On price, update cadence, 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
Both are free to download. Lekh AI sells 2 in-app purchases, starting at $0.99 per month and OpenVox Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
OpenVox Reader holds the better App Store score, 4.8 against 4.1. That said, the two scores are not equally well evidenced: Lekh AI has 72 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 57% of Lekh AI's written reviews are positive against 100% of OpenVox Reader's.
Lekh AI ships an update every 4 days, OpenVox Reader weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Lekh AI | OpenVox Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (72 ratings) | 4.8 (6 ratings) — better |
| Positive reviews | 56.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 72 — better | 6 |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 1.6 GB | 172 MB |
| Age rating | 17+ | 4+ |
| Developer | Kaila Consulting Inc. | Nitesh Kumar Sharma |
Customer experience
Lekh AI
OpenVox Reader
In-app purchases
Lekh AI
- Monthly Subscription3 Days trial$0.991 Month
- Lifetime$4.99
OpenVox Reader
- OpenVox Reader Pro Lifetime$14.99









