Comparison

Img2Latex vs Pepnotes Ai Transcriber

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

Head to head
About

Img2Latex

Features
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Transform handwritten math, lecture notes, and problem sets into beautiful, editable LaTeX and professional PDFs—entirely on your device. Img2LaTeX uses cutting-edge on-device AI to understand your mathematical documents and convert them to production-ready LaTeX code. No internet connection required. Your data never leaves your device. KEY FEATURES * 100% On-Device Processing Zero cloud dependencies. All AI inference runs locally using advanced vision models. Your privacy is guaranteed—no data ever leaves your iPhone. * Multimodal Vision AI Powered by advanced on-device vision models optimized for ARM processors. Process up to 5 images at once for multi-page documents. * Real-Time Streaming Watch LaTeX code generate token-by-token in real-time. Edit and refine as you go. * Professional PDF Output Client-side LaTeX rendering produces publication-ready PDFs. Perfect for homework, research papers, and lecture notes. * Performance Monitoring Live metrics show memory usage, battery impact, and thermal state during AI inference. Transparency you won't find elsewhere. * Model Selection Choose between 2B and 4B parameter models. Balance speed vs. accuracy for your use case. * Smart History All generations saved locally with search, favorites, and refinement tracking. Never lose your work. * LaTeX Refinement Iteratively improve conversions with user feedback. Each refinement learns from the previous attempt. TECHNICAL HIGHLIGHTS * ARM64 Optimized: Leverages Apple Silicon's matrix acceleration capabilities * INT4 Quantization: Efficient 4-bit models (~500MB for 2B, ~900MB for 4B) * SME2 Compatible: Automatic use of latest ARM extensions on iPhone 16 and M4 devices * SIMD Acceleration: Accelerate framework for parallel image preprocessing * Thermal Management: Adaptive performance tuning based on device temperature PERFECT FOR * Students converting homework to LaTeX * Researchers digitizing handwritten notes * Educators preparing problem sets * Anyone who needs fast, private math-to-PDF conversion PRIVACY FIRST Unlike cloud-based OCR services, Img2LaTeX processes everything locally. No server uploads, no data collection, no privacy concerns. Your intellectual property stays yours. HOW IT WORKS 1. Capture photos of your handwritten or typed math 2. Watch AI generate LaTeX code in real-time 3. Review and refine the output 4. Export as PDF or copy LaTeX code BUILT FOR THE ARM AI DEVELOPER CHALLENGE 2025 Img2LaTeX showcases production-grade on-device AI on iOS. Developed as part of Arm's AI Developer Challenge, this app demonstrates what's possible when you combine advanced multimodal models with ARM-optimized inference. OPEN SOURCE Img2LaTeX is fully open-source (MIT License). Explore the code, contribute improvements, or learn how to build your own on-device AI apps. GitHub: github.com/youneslaaroussi/Pic2PDF REQUIREMENTS: * iOS 17.0 or later * ~1GB free storage for AI models (downloaded on first launch) * No internet connection required after model download * Works on all ARM-based iOS devices (iPhone, iPad) Get started with on-device AI today. Convert math to PDF in seconds—privately and efficiently.

About

Pepnotes Ai Transcriber

This app uses AI to transcribe spoken words into organized notes. It offers real-time transcription, AI-powered summaries, and specialized modes for various settings like meetings and classes. It also generates smart questions to encourage deeper thinking.

Highlights
  • Real-time transcription
  • AI-powered summaries
  • 15+ specialized AI modes
  • Smart AI-generated questions
  • Secure cloud sync
  • Distraction-free UI
Features
Read full description

Pep Notes - AI-Powered Voice Note Taking Pep Notes is the ultimate tool for turning your spoken thoughts, meetings, and lectures into beautifully organized, actionable notes. Using advanced AI, Rad Notes doesn't just transcribe—it understands, summarizes, and highlights what matters most. FEATURES: • Real-time Transcription: Watch your words appear instantly with live captions as you speak. • AI-Powered Summaries: Get instant, high-quality summaries and organized bullet points. • Specialized AI Modes: Choose from over 15+ specialized scripts for any setting: - Personal Notes: Capture your inner thoughts and quick ideas. - Meeting Notes: Specialized modes for Project Planning, Tech Standups, Sales Calls, Marketing, and more. - Classroom Notes: Optimized for STEM, Liberal Arts, Business, and Language classes. - ADHD-Optimized: A clear, actionable format designed specifically for focus and clarity. • Smart Questions: Get AI-generated follow-up questions to help you think deeper or prepare for next steps. • Secure Cloud Sync: Access your notes anywhere with secure storage powered by Firebase. • Distraction-Free UI: A beautiful, dark-themed interface with a pulsing mic that lets you focus on your thoughts. PERFECT FOR: • Students: Never miss a key point in a lecture again. • Professionals: Capture action items and decisions from every meeting. • Content Creators: Brainstorm and draft ideas on the go. • ADHD Brains: Organize scattered thoughts into structured, easy-to-read notes. HOW IT WORKS: 1. Tap the red mic button to start recording. 2. Select your setting (e.g., "Tech Meeting" or "STEM Class"). 3. Speak naturally—live transcription appears instantly. 4. Stop recording to get your AI-analyzed summary and action items. Pep Notes: Your voice, organized.

Screenshots

Img2Latex3 screens
Pepnotes Ai Transcriber4 screens

Verdict

The call

The clearest difference is iOS requirement: Pepnotes Ai Transcriber at 15.1 against Img2Latex's 17.6. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard1 real difference · 9 level
Img2Latex versus Pepnotes Ai Transcriber: the parameters behind the verdict, then further details
ParameterImg2LatexPepnotes Ai Transcriber
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size30 MB51 MB
Age rating4+4+
DeveloperDeepShot, Inc.Radiance Okuzor

In-app purchases

None

Img2Latex

No in-app purchases

None

Pepnotes Ai Transcriber

No in-app purchases

Questions

Is Img2Latex free?
Img2Latex is free to download, with no in-app purchases.
Is Pepnotes Ai Transcriber free?
Pepnotes Ai Transcriber is free to download, with no in-app purchases.
Do Img2Latex or Pepnotes Ai Transcriber have ads?
Neither Img2Latex nor Pepnotes Ai Transcriber shows ads.
Which is updated more often, Img2Latex or Pepnotes Ai Transcriber?
Img2Latex ships an update every 2 weeks, and Pepnotes Ai Transcriber every 2 weeks. Most recently, Img2Latex was updated on October 25, 2026 and Pepnotes Ai Transcriber on October 28, 2026.

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