Comparison

Neural Network vs Illustrate GPT

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

Head to head
About

Neural Network

Explore neural networks through interactive tutorials and visualized labs. Learn key concepts with gamified missions and build models intuitively. Access a variety of datasets and classic deep learning models on the go.

Highlights
  • Interactive tutorials with charts
  • Visualized neural network lab
  • Gamified learning missions
  • Variety of 2D/3D datasets
  • Visualized deep learning models
  • Intuitive model editor
Features
Read full description

Learning and using neural networks in an intuitive and natural way! Intuitive and interactive tutorials. A large number of charts and interactive components are used to make learning more intuitive. Visualized Neural Network Lab. Open the black box of neural networks with simplified datasets and full visualization, gain more intuition. Learning with mission like gaming. In the missions, you will run into many key concepts in neural networks, complete the challenges and acquire a deep understanding. Put neural network lab in your pocket. Variety of datasets: 2D and 3D datasets both with regression and classification. Get the dataset just with a tapping. Do experiments at anytime anywhere. Good visualized neural network knowledges. Key concepts and dynamics are showed with charts and animations. Activations, regularizations, loss functions, classifications, Embedding, CNN1d, CNN2d, RNN and more to come. Visualized Deep Learning Models. Learn the most classic models in an intuitive way that has never been seen before, and quickly master cutting-edge technology. Through modular diagrams, understand how data changes from input to output and how it changes at each step. There are detailed documents for each module, and even reference papers, source codes and animations. Visual neural network model editor. Quickly build a model by dragging your fingers. What you see is what you get: Through real-time calculation and display of the output of each step, the construction of the model has never been so intuitive and efficient; real-time display of various errors, including parameters/input types and value compatibility, etc., abandoning inefficient debugging. MORE FEATURES COMING!!!

About

Illustrate GPT

Explore the inner workings of AI language models with a compact GPT model on your iOS device. Generate stories, visualize predictions, and understand AI's attention mechanisms. Ideal for AI enthusiasts and curious learners.

Highlights
  • Pocket-sized AI model
  • Interactive story generation
  • Next token prediction exploration
  • Attention visualization (Pro)
  • Model insights and visualizations
  • Customizable generation settings
Features
Read full description

How does ChatGPT actually write? Illustrate GPT answers that question with a real language model running entirely on your iPhone. You don't just read about it: you open it up and watch it think. Illustrate GPT runs Baby Llama 2, a tiny GPT trained on children's stories. It has the same architecture as the big models, small enough to run offline in real time. Eight short interactive chapters take you from raw text to the next word, and every chart comes from the live model. THE COURSE 1. Meet Baby GPT. Watch a story being written one token at a time. Each word is colored by how confident the model was. Tap any word to see the alternatives it considered, and pick a different one to rewrite the story from that point. 2. Tokens. Type anything and see how it gets chopped into pieces and turned into numbers. Find out why " cat", "Cat" and " CAT" are different things to a model. 3. Embeddings. Every token is a list of 288 numbers. See a word's vector, find its nearest neighbors (king → queen, prince, crown), and measure how similar two words are. 4. Attention. Tap a word and see which earlier words it looks at. Explore all 36 attention heads. Each one's role (previous-token, duplicate-token, attention sink, and more) is detected automatically. 5. Layers. Use the "logit lens" to watch the prediction take shape block by block, from a vague guess at the bottom to a confident answer at the top. Then browse the full model blueprint with real weight shapes. 6. Sampling. Turn the temperature, top-k and top-p knobs and watch the probabilities change in real time. Roll the dice, and write three different futures from the same sentence. 7. The Loop. Step through the whole pipeline for a single token, from tokenize and embed through 6 transformer blocks to probabilities, sample and append, then do it again. 8. Your Turn. Now you are the model. Guess the most likely next word and see how your intuition compares with a neural network. BUILT FOR LEARNING • Every chapter starts with a "predict first" question, so you form a guess before you see the answer. • Key ideas, common myths vs. reality, and an optional "Go deeper" section in every chapter. • Your progress is saved, so you can learn at your own pace. PRIVATE AND OFFLINE The model runs on your device with Apple's MLX framework. No account, no server, no data leaves your phone. FREE Every feature is free. An optional tip supports development. Perfect for students, teachers, developers, and anyone curious about what's really going on inside AI.

Screenshots

Neural Network4 screens
Illustrate GPT4 screens

Verdict

The call

The clearest difference is ratings volume: Neural Network at 141 against Illustrate GPT's 1. Neural Network also leads on update cadence (every 3 weeks vs every 3 months) and device support (4 vs 1). Illustrate GPT's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model 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. Neural Network sells 3 in-app purchases, starting at $12.99 per 6 months and Illustrate GPT sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Illustrate GPT holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Neural Network has 141 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Neural Network ships an update every 3 weeks, Illustrate GPT every 3 months. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
Neural Network versus Illustrate GPT: the parameters behind the verdict, then further details
ParameterNeural NetworkIllustrate GPT
PriceFreeFree
Rating4.7 (141 ratings)5.0 (1 ratings) — better
Positive reviews85.1% of reviews—
Number of ratings141 — better1
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.6 — better17.6
Further details — not scored
Size59 MB68 MB
Age rating4+4+
Developer大胜 纪一和 朱

Customer experience

Neural Network

All ratings140 ratings
Positive92.1%
Neutral3.6%
Negative4.3%
Written reviews47 reviews
Positive85.1%
Neutral6.4%
Negative8.5%

Illustrate GPT

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Neural Network

Reported bugs

8 issues
  • Cannot decrement hidden layer nodes
  • Network connection error when becoming a member
  • Network abnormal when purchasing
  • App crashes after section 1.2 1.3
  • XOR neural network graph mistake
Show 3 more
  • Tutorial section needs further strengthening
  • Neural network output not explained
  • Cannot predict after model training

Requested features

15 requests
  • Update traffic widget for iOS
  • Make a Neural Network Launcher
  • Add a Dark Mode
  • Hope to update new neural networks
  • Hope to add highlight marking function
Show 10 more
  • Model import file type
  • Hope for more tutorials
  • Add German Language
  • Provide a one-time purchase option
  • Hope for ads to lower lifetime cost
  • Request customer service and technical support
  • Expect more tutorials
  • Add specialized teaching videos
  • Explain neural network prediction
  • Add highlight marking function

Illustrate GPT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Neural Network

Subscriptions2
  • Semiannual subscription$12.996 Months
  • Annual subscription$17.991 Year
One-time1
  • Lifetime VIP$24.99
1 purchases

Illustrate GPT

One-time1
  • PRO Mode$1.99

Questions

Is Neural Network free?
Neural Network is free to download, with in-app purchases available.
Is Illustrate GPT free?
Illustrate GPT is free to download, with in-app purchases available.
Which has better reviews, Neural Network or Illustrate GPT?
Illustrate GPT is rated higher. Neural Network averages 4.7 out of 5 from 141 ratings, while Illustrate GPT averages 5.0 from 1 ratings.
Do Neural Network or Illustrate GPT have ads?
Neither Neural Network nor Illustrate GPT shows ads.
Which is updated more often, Neural Network or Illustrate GPT?
Neural Network ships an update every 3 weeks, and Illustrate GPT every 3 months. Most recently, Neural Network was updated on October 24, 2026 and Illustrate GPT on October 17, 2026.

Other comparisons