# SmartLink Professional vs rsrvOS

The clearest difference is rating: rsrvOS at 5.0 against SmartLink Professional's 2.0. SmartLink Professional's advantage is ratings volume (4 vs 1) and iOS requirement (13.0 vs 18.0). 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.

rsrvOS holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

SmartLink Professional ships an update every 8 days, rsrvOS fortnightly. The most recent releases landed on October 30, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SmartLink Professional | rsrvOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/smartlink-professional/id6737324185/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rsrvos/id6761038925/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 135 MB | 18 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Connect IoT, LLC](https://appshunter.io/developer/1728363384) | [Sun Sol Software, LLC](https://appshunter.io/developer/1887456660) |

## What reviewers say

### SmartLink Professional

[App page](https://appshunter.io/ios/app/smartlink-professional/id6737324185)

This app provides property managers, owners, and residents with a platform to control smart devices, track usage, and improve efficiency. It offers real-time insights and customizable automation for smart homes and communities.

**Highlights:** Real-time smart device insights, Customizable automation for energy optimization, Secure resident access to smart devices, Multifamily property management tools, Smart City integration

**In-app purchases:** none


### rsrvOS

[App page](https://appshunter.io/ios/app/rsrvos/id6761038925)

This app provides a streamlined system for businesses to manage reservations, track payments, and organize bookings. It offers a unified dashboard for real-time control and performance monitoring, eliminating the need for spreadsheets and fragmented systems.

**Highlights:** Unified dashboard with real-time visibility, Smart grouping for multi-party reservations, Structured reservation inputs, Advanced filtering and sorting, Payment tracking with refund visibility, Net revenue and reporting summaries, Intuitive interface designed for speed

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartLink Professional free?

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

### Is rsrvOS free?

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

### Which has better reviews, SmartLink Professional or rsrvOS?

rsrvOS is rated higher. SmartLink Professional averages 2.0 out of 5 from 4 ratings, while rsrvOS averages 5.0 from 1 ratings.

### Do SmartLink Professional or rsrvOS have ads?

Neither SmartLink Professional nor rsrvOS shows ads.

### Which is updated more often, SmartLink Professional or rsrvOS?

SmartLink Professional ships an update every 8 days, and rsrvOS fortnightly. Most recently, SmartLink Professional was updated on October 30, 2026 and rsrvOS on October 17, 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.*