# PJFFfree vs Stellar Browser

The clearest difference is ads: Stellar Browser at none against PJFFfree's shown. PJFFfree's advantage is update cadence (every 5 weeks vs every 9 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

PJFFfree ships an update every 5 weeks, Stellar Browser every 9 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | PJFFfree | Stellar Browser |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pjfffree/id629958775/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 9 months |
| Monetization | Ad-supported | — |
| Size | 7 MB | 0 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [sigeyosi kanenishi](https://appshunter.io/developer/629958778) | [StellarLink Corp.](https://appshunter.io/developer/993146156) |

## What reviewers say

### PJFFfree

[App page](https://appshunter.io/ios/app/pjfffree/id629958775)

This app serves as a manual for piping parts, focusing on Japanese specifications. It lists commonly used items based on manufacturer data and public dimension tables, with all measurements in millimeters.

**Highlights:** Piping parts manual, Japanese specifications, Commonly used parts listing, Manufacturer data integration, Millimeter measurements, JIS standards compliance

**Features:** macOS Compatibility

**In-app purchases:** none


### Stellar Browser

[App page](https://appshunter.io/ios/app/stellar-browser/id1506696725)

**In-app purchases:** none


## Frequently asked questions

### Is PJFFfree free?

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

### Is Stellar Browser free?

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

### Do PJFFfree or Stellar Browser have ads?

PJFFfree shows ads; Stellar Browser does not.

### Which is updated more often, PJFFfree or Stellar Browser?

PJFFfree ships an update every 5 weeks, and Stellar Browser every 9 months. Most recently, PJFFfree was updated on November 6, 2026 and Stellar Browser on November 7, 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.*