# Sea Containers Facilities vs JSON Master

The clearest difference is in-app purchases: Sea Containers Facilities at none against JSON Master's 3. Sea Containers Facilities also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). JSON Master's advantage is update cadence (every 9 days vs every 10 months). On price and device support there is nothing between them.

Both are free to download. JSON Master sells 3 in-app purchases, starting at $2.99 per 7 days. Sea Containers Facilities asks for nothing beyond the download.

Sea Containers Facilities ships an update every 10 months, JSON Master every 9 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sea Containers Facilities | JSON Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (5 ratings)](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 72 MB | 41 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anabas UK 2 Limited](https://appshunter.io/developer/933214793) | [Tianjin Illuso Information Technology Co., Ltd.](https://appshunter.io/developer/1864792206) |

## What reviewers say

### Sea Containers Facilities

[App page](https://appshunter.io/ios/app/sea-containers-facilities/id1364887456)

**In-app purchases:** none


### JSON Master

[App page](https://appshunter.io/ios/app/json-master-editor-and-viewer/id6757484875)

This offline iOS tool formats, views, validates, and converts JSON data. It supports large files and offers privacy-safe, local processing for developers needing to debug API responses or transform data formats.

**Highlights:** Offline JSON formatting and beautifying, Tree and text view for JSON visualization, Instant JSON syntax validation, JSON to CSV, XML, Excel conversion, Large file support, Import from clipboard and files

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JSON Master Pro (Weekly) | $2.99 | per 7 days |
| Pro (Yearly) | $14.99 | per year |
| JSON Master Pro Lifetime | $17.99 | one-time |


## Frequently asked questions

### Is Sea Containers Facilities free?

Sea Containers Facilities is free to download, with no in-app purchases.

### Is JSON Master free?

JSON Master is free to download, with in-app purchases available.

### Do Sea Containers Facilities or JSON Master have ads?

JSON Master shows ads; Sea Containers Facilities does not.

### Which is updated more often, Sea Containers Facilities or JSON Master?

Sea Containers Facilities ships an update every 10 months, and JSON Master every 9 days. Most recently, Sea Containers Facilities was updated on October 26, 2026 and JSON Master on October 24, 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.*