# Train Chain vs Jigstack Pictures

The clearest difference is iOS requirement: Train Chain at 15.0 against Jigstack Pictures's 17.6. On price, update cadence, ads 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.

Train Chain ships an update monthly, Jigstack Pictures fortnightly. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Train Chain | Jigstack Pictures |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/jigstack-pictures/id6802222942/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 166 MB | 189 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Dogukan Cakici](https://appshunter.io/developer/1895349943) | [Mezze](https://appshunter.io/developer/1882445692) |

## What reviewers say

### Train Chain

[App page](https://appshunter.io/ios/app/train-chain-sort-by-color/id6793439450)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Jigstack Pictures

[App page](https://appshunter.io/ios/app/jigstack-pictures/id6802222942)

Piece together fragmented artwork by matching image tiles to their correct grid slots. This puzzle game challenges your visual spatial skills with increasingly complex canvases and tile mechanics. Successfully fit every piece to reveal vibrant scenes.

**Highlights:** Reconstruct detailed artwork, Match fragmented image tiles, Place tiles into exact grid slots, Visual spatial skill challenges, Increasingly complex levels, Reveal vibrant scenes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Train Chain free?

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

### Is Jigstack Pictures free?

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

### Do Train Chain or Jigstack Pictures have ads?

Both Train Chain and Jigstack Pictures show ads.

### Which is updated more often, Train Chain or Jigstack Pictures?

Train Chain ships an update monthly, and Jigstack Pictures fortnightly. Most recently, Train Chain was updated on October 24, 2026 and Jigstack Pictures on October 14, 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.*