# PJConverter vs SmartClean

The clearest difference is price: SmartClean at Free against PJConverter's $0.99. SmartClean also leads on update cadence (monthly vs every 7 months) and iOS requirement (15.0 vs 17.0). PJConverter's advantage is in-app purchases (none vs 4). On review sentiment, ads and device support there is nothing between them.

SmartClean is free to download; PJConverter costs $0.99 up front. SmartClean sells 4 in-app purchases, starting at $12.99 per 7 days. PJConverter asks for nothing beyond the download.

PJConverter ships an update every 7 months, SmartClean monthly. The most recent releases landed on September 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PJConverter | SmartClean |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.0 (26 ratings)](https://appshunter.io/ios/app/smartclean-duplicate-cleaner/id6737458752/reviews)** |
| Number of ratings | — | **26** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 45 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhikang Qin](https://appshunter.io/developer/1123601166) | [Green Soft FZE LLC](https://appshunter.io/developer/1692372293) |

## 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


### SmartClean

[App page](https://appshunter.io/ios/app/smartclean-duplicate-cleaner/id6737458752)

This utility app helps organize your iPhone by detecting and removing duplicate files like photos, videos, and contacts. It also offers smart media grouping and animated charging features to enhance device efficiency and user experience.

**Highlights:** Duplicate photo, video, and contact removal, Smart media organization, Animated charging screen, Storage space optimization, Device performance boost

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly Access | $12.99 | per 7 days |
| Month Trial | $29.99 | per month |
| Premium Year | $59.99 | per year |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is PJConverter free?

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

### Is SmartClean free?

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

### Do PJConverter or SmartClean have ads?

Neither PJConverter nor SmartClean shows ads.

### Which is updated more often, PJConverter or SmartClean?

PJConverter ships an update every 7 months, and SmartClean monthly. Most recently, PJConverter was updated on September 24, 2026 and SmartClean on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*