# Epoch Idle: AI Training Sim — Train a neural network, idly

> Train a neural network, idly (iPhone/iPad app by Elad Yifee.)

- Source: https://appshunter.io/ios/app/epoch-idle-ai-training-sim/id6818509786 (this page in markdown: same URL + `.md`)
- Developer: [Elad Yifee](https://appshunter.io/developer/6809018955)
- Category: Games, Education, Simulation
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 24 MB
- Languages: American English
- Released: 2026-10-28
- Data updated: 2026-10-31

## What is Epoch Idle?

You are handed a single neuron and a dataset it cannot fit.

Epoch Idle is an idle game about the real loop of machine learning -
scaled down, sped up, and made tactile. Every purchase runs a slice of
actual gradient descent. Every number on screen is live math, not a
counter with a skin.

TRAIN
Start with one perceptron and straight-line data. Watch the loss curve
bend as you tune weights, learning rate, and hardware - then hit the
LINEAR // CEILING wall and learn why activation functions exist.

DEEPEN
Unlock ReLU, Sigmoid, and GELU. Add Conv2D kernels for segmented data
and fight the overfitting they invite. Route multi-head attention over
tangled regions no kernel stack can tile. End in a one-way Transformer
paradigm shift.

PRESTIGE - THREE DEEP
• Backprop Step: collapse the run into ∇ gradients and spend them down
  the optimizer tree (SGD → Momentum → RMSProp → Adam).
• Checkpoint Freeze: bank every mastered dataset as permanent Model
  Weights ω.
• Paradigm Shift: reroute your multipliers into the Transformer regime.

LEARN WITHOUT NOTICING
Loss ceilings are real formulas. Overfitting follows the real 2σ²
estimation law. Every paper you publish arrives with its real abstract -
from the perceptron to "Attention Is All You Need" - and 28 tappable
concepts explain the math behind every system you use.

FAIR BY DESIGN
• Zero forced ads. The one rewarded ad is an optional ×2 TPU Overclock.
• Offline catch-up up to 24 h (extendable to 48) - deterministic, chunked,
  honest.
• Full tutorial that fades when you've proven the mechanic.
• No accounts, no cloud, no tracking: your run is a local file you can
  export from Settings.

Train, publish, shift paradigms - the gradient never sleeps.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Funding Pack - 100 | $0.99 | one-time |
| Funding Pack - 550 | $4.99 | one-time |
| Funding Pack - 1,200 | $9.99 | one-time |
| Full Research Grant | $4.99 | one-time |


## Is Epoch Idle safe?

Not enough ratings yet to assess Epoch Idle.

## Is Epoch Idle legit?

Epoch Idle: AI Training Sim has limited verification signals. The AppsHunter Legitimacy Score for Epoch Idle is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 1.2.3 — 2026-10-30

Stability improvements

### 1.2.2 — 2026-10-30

Stability improvements

### 1.1.0 — 2026-10-29

No release notes.

## More apps by Elad Yifee

- [LoyalCloak](https://appshunter.io/ios/app/loyalcloak/id6809018953)

All apps by Elad Yifee: https://appshunter.io/developer/6809018955

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*