# RTProSL 9 vs FOX Studio Lot

The clearest difference is iOS requirement: RTProSL 9 at 11.1 against FOX Studio Lot's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

RTProSL 9 ships an update every 5 weeks, FOX Studio Lot every 2 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RTProSL 9 | FOX Studio Lot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rtprosl-9/id1290507791/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 50 MB | 67 MB |
| Requires iOS | **11.1** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Rental Tracker, Inc.](https://appshunter.io/developer/935518347) | [CXApp US, Inc.](https://appshunter.io/developer/692960350) |

## What reviewers say

### RTProSL 9

[App page](https://appshunter.io/ios/app/rtprosl-9/id1290507791)

This software integrates with Rental Tracker Pro to scan barcodes and RFID tags. It wirelessly transmits scanned data directly to the Rental Tracker Pro application.

**Highlights:** Barcode scanning, RFID tag scanning, Wireless data transmission, Integration with Rental Tracker Pro, Optional barcode accessories

**In-app purchases:** none


### FOX Studio Lot

[App page](https://appshunter.io/ios/app/fox-studio-lot/id6450933902)

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

**In-app purchases:** none


## Frequently asked questions

### Is RTProSL 9 free?

RTProSL 9 is free to download, with no in-app purchases.

### Is FOX Studio Lot free?

FOX Studio Lot is free to download, with no in-app purchases.

### Do RTProSL 9 or FOX Studio Lot have ads?

Neither RTProSL 9 nor FOX Studio Lot shows ads.

### Which is updated more often, RTProSL 9 or FOX Studio Lot?

RTProSL 9 ships an update every 5 weeks, and FOX Studio Lot every 2 months. Most recently, RTProSL 9 was updated on September 24, 2026 and FOX Studio Lot on October 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.*