# Timestamp Conversion Tool vs Advanced JSON Viewer

The clearest difference is rating: Timestamp Conversion Tool at 5.0 against Advanced JSON Viewer's 3.3. Advanced JSON Viewer's advantage is update cadence (every 6 weeks vs every 38 months) and chart position (#183 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

Timestamp Conversion Tool costs $1.99 and Advanced JSON Viewer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Timestamp Conversion Tool holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Timestamp Conversion Tool ships an update every 38 months, Advanced JSON Viewer every 6 weeks. The most recent releases landed on September 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Timestamp Conversion Tool | Advanced JSON Viewer |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/timestamp-conversion-tool/id1598277673/reviews)** | [3.3 (3 ratings)](https://appshunter.io/ios/app/advanced-json-viewer/id6739271287/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#183** |
| Size | 11 MB | 5 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Kosei Suzuki](https://appshunter.io/developer/319693641) | [Acrogenesis LLC](https://appshunter.io/developer/1784592807) |

## What reviewers say

### Timestamp Conversion Tool

[App page](https://appshunter.io/ios/app/timestamp-conversion-tool/id1598277673)

Easily convert between date/time and UNIX timestamps. Customize formats, time zones, and locations for accurate comparisons. Ideal for developers and debugging.

**Highlights:** Date and time to UNIX timestamp conversion, UNIX timestamp to date and time conversion, Customizable date and time formats, Easy time zone and location setting, Supports multiple countries' formats and time differences, Ad-free experience

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

**In-app purchases:** none


### Advanced JSON Viewer

[App page](https://appshunter.io/ios/app/advanced-json-viewer/id6739271287)

**Currently charting:** #183 Top Paid · Developer Tools (US App Store)

This tool enhances JSON data viewing and editing within Safari and on your device. It offers beautiful formatting, syntax highlighting, and an interactive editor for efficient JSON management.

**Highlights:** Open and save JSON files, Beautiful JSON formatting, Syntax highlighting, Interactive editor, Light & dark modes, Error detection

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Timestamp Conversion Tool free?

Timestamp Conversion Tool costs $1.99, with no in-app purchases.

### Is Advanced JSON Viewer free?

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

### Which has better reviews, Timestamp Conversion Tool or Advanced JSON Viewer?

Timestamp Conversion Tool is rated higher. Timestamp Conversion Tool averages 5.0 out of 5 from 1 ratings, while Advanced JSON Viewer averages 3.3 from 3 ratings.

### Do Timestamp Conversion Tool or Advanced JSON Viewer have ads?

Neither Timestamp Conversion Tool nor Advanced JSON Viewer shows ads.

### Which is updated more often, Timestamp Conversion Tool or Advanced JSON Viewer?

Timestamp Conversion Tool ships an update every 38 months, and Advanced JSON Viewer every 6 weeks. Most recently, Timestamp Conversion Tool was updated on September 10, 2026 and Advanced JSON Viewer on September 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.*