# NeuLab vs Trajectory

The clearest difference is ads: NeuLab at none against Trajectory's shown. NeuLab also leads on device support (3 vs 1) and iOS requirement (11.0 vs 17.7.2). On price, update cadence and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 29, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | NeuLab | Trajectory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/neulab/id1319488699/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 2 MB | 36 MB |
| Requires iOS | **11.0** | 17.7.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tim Dyes](https://appshunter.io/developer/1015135207) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### NeuLab

[App page](https://appshunter.io/ios/app/neulab/id1319488699)

Explore the inner workings of neural networks by configuring, training, and testing them. This app provides a hands-on laboratory experience to understand how these systems learn and process data, with tools to optimize accuracy and analyze results.

**Highlights:** Configure, train, and test neural networks, Optimize network accuracy with AutoPrune, Build convolution layers with Prune and Link, Define and import training/testing data, Save and export trained networks, Step through training and testing processes

**Features:** macOS Compatibility

**In-app purchases:** none


### Trajectory

[App page](https://appshunter.io/ios/app/trajectory-detection/id6511212764)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NeuLab free?

NeuLab is free to download, with no in-app purchases.

### Is Trajectory free?

Trajectory is free to download, with no in-app purchases.

### Do NeuLab or Trajectory have ads?

Trajectory shows ads; NeuLab does not.

### Which is updated more often, NeuLab or Trajectory?

NeuLab ships an update fortnightly, and Trajectory fortnightly. Most recently, NeuLab was updated on September 29, 2026 and Trajectory on October 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*