Comparison

ODE vs Img2Latex

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

Head to head
About

ODE

Features
Read full description

The ODESolverIntegrator is a simple but elegant app to find the integral of ODEs. You can solve (find the integral of) nonlinear ODEs. You can reduce the higher order ODE to a set of first order ODEs. You can solve (find the integral of) linear ODEs in the form of ẋ = Ax + Bu; y = Cx + Du. This app uses Runge-Kutta 4th order algorithm to solve the ODEs. Once the ODEs are solved, a beautiful interactive graph for each ODE's is created that you can share with other or save it locally. The reduced ODE's equations are presented beautifully in the math-equation format. You can compute definite integral (single, double, tripple). It uses the midpoint method. It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. This app also has a Study page to help you learn important integration rules like, power rule, product rule, ect. This app is perfect for students learning calculus. Sharpen you brain by using this app and learning about the calculus. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

About

Img2Latex

Features
Read full description

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.

Screenshots

ODE4 screens
Img2Latex3 screens

Verdict

The call

The clearest difference is price: Img2Latex at Free against ODE's $1.99. ODE's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.6). On 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

Img2Latex is free to download; ODE costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 3 level
ODE versus Img2Latex: the parameters behind the verdict, then further details
ParameterODEImg2Latex
Price$1.99Free — better
Update frequencyMonthly—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.6
Further details — not scored
Size37 MB22 MB
Age rating4+4+
DeveloperOm Prakash ChapagainDeepShot, Inc.

In-app purchases

None

ODE

No in-app purchases

None

Img2Latex

No in-app purchases

Questions

Is ODE free?
ODE costs $1.99, with no in-app purchases.
Is Img2Latex free?
Img2Latex is free to download, with no in-app purchases.
Do ODE or Img2Latex have ads?
Neither ODE nor Img2Latex shows ads.

Other comparisons