# PJConverter vs 天富通

The clearest difference is price: 天富通 at Free against PJConverter's $0.99. 天富通 also leads on update cadence (every 3 weeks vs every 7 months) and iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

天富通 is free to download; PJConverter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PJConverter ships an update every 7 months, 天富通 every 3 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PJConverter | 天富通 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 6 MB | 125 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhikang Qin](https://appshunter.io/developer/1123601166) | [Trina Solar Residential PV Technology Co., Ltd.](https://appshunter.io/developer/1577900359) |

## What reviewers say

### PJConverter

[App page](https://appshunter.io/ios/app/pjconverter/id1123601167)

This tool offers precise coordinate transformations for GIS, surveying, and engineering professionals. It supports thousands of global coordinate systems and allows for custom projection creation with real-time validation and visual previews. Streamline your spatial data management with this efficient utility.

**Highlights:** Professional-grade conversion engine, Extensive library of coordinate systems, Customizable projection creation, Visual projection previews, Flexible format support, Intuitive user interface

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

**In-app purchases:** none


### 天富通

[App page](https://appshunter.io/ios/app/id6745590034)

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

**In-app purchases:** none


## Frequently asked questions

### Is PJConverter free?

PJConverter costs $0.99, with no in-app purchases.

### Is 天富通 free?

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

### Do PJConverter or 天富通 have ads?

Neither PJConverter nor 天富通 shows ads.

### Which is updated more often, PJConverter or 天富通?

PJConverter ships an update every 7 months, and 天富通 every 3 weeks. Most recently, PJConverter was updated on November 2, 2026 and 天富通 on October 30, 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.*