# KML Viewer and Converter vs JSON Viewer

The clearest difference is price: KML Viewer and Converter at Free against JSON Viewer's $1.99. KML Viewer and Converter also leads on review sentiment (16% vs 6%). JSON Viewer's advantage is rating (4.2 vs 2.1) and in-app purchases (none vs 4). On ads and device support there is nothing between them.

KML Viewer and Converter is free to download; JSON Viewer costs $1.99 up front. KML Viewer and Converter sells 4 in-app purchases, starting at $0.99 per month. JSON Viewer asks for nothing beyond the download.

JSON Viewer holds the better App Store score, 4.2 against 2.1. That said, the two scores are not equally well evidenced: JSON Viewer has 113 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 16% of KML Viewer and Converter's written reviews are positive against 6% of JSON Viewer's, so the app with the better star average is not the one people write more warmly about.

KML Viewer and Converter ships an update every 5 weeks, JSON Viewer fortnightly. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | KML Viewer and Converter | JSON Viewer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.1 (9 ratings)](https://appshunter.io/ios/app/kml-viewer-and-converter/id1457028727/reviews) | **[4.2 (113 ratings)](https://appshunter.io/ios/app/json-viewer-json-file-reader/id1490263936/reviews)** |
| Number of ratings | 9 | **113** |
| Positive reviews | **15.8% of reviews** | 6.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Freemium | **Free** |
| Size | 45 MB | 6 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BMAC Infotech](https://appshunter.io/developer/1091994276) | [Beatcode Srl](https://appshunter.io/developer/1478673452) |

## What reviewers say

### KML Viewer and Converter

[App page](https://appshunter.io/ios/app/kml-viewer-and-converter/id1457028727)

Easily view and convert geographical data files like KML, KMZ, GPX, GeoJson, and TopoJson. Transform your location data into various formats for use in mapping applications.

**Highlights:** Convert KML to KMZ, GPX, GeoJson, TopoJson, CSV, Convert KMZ, GPX, GeoJson, TopoJson to KML, View geographical data on maps, Supports multiple file formats, Easy file loading and conversion

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| Monthly | $0.99 | one-time |
| Yearly | $9.99 | one-time |


### JSON Viewer

[App page](https://appshunter.io/ios/app/json-viewer-json-file-reader/id1490263936)

Easily open, search, and manage JSON files directly from other applications on your iPhone or iPad. Convert your JSON data to PDF, archive files, and share or print them with ease.

**Highlights:** Open JSON files from other apps, JSON to PDF converter, Archive JSON files, Share JSON files, Print JSON files

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

**In-app purchases:** none


## Frequently asked questions

### Is KML Viewer and Converter free?

KML Viewer and Converter is free to download, with in-app purchases available.

### Is JSON Viewer free?

JSON Viewer costs $1.99, with no in-app purchases.

### Which has better reviews, KML Viewer and Converter or JSON Viewer?

JSON Viewer is rated higher. KML Viewer and Converter averages 2.1 out of 5 from 9 ratings, while JSON Viewer averages 4.2 from 113 ratings.

### Do KML Viewer and Converter or JSON Viewer have ads?

Neither KML Viewer and Converter nor JSON Viewer shows ads.

### Which is updated more often, KML Viewer and Converter or JSON Viewer?

KML Viewer and Converter ships an update every 5 weeks, and JSON Viewer fortnightly. Most recently, KML Viewer and Converter was updated on October 21, 2026 and JSON Viewer on October 19, 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.*