# Slendertone Connect vs RLT SYSTEM MASTER

The clearest difference is ads: RLT SYSTEM MASTER at none against Slendertone Connect's shown. RLT SYSTEM MASTER also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (12.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

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

Slendertone Connect ships an update every 2 months, RLT SYSTEM MASTER every 4 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Slendertone Connect | RLT SYSTEM MASTER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (456 ratings)](https://appshunter.io/ios/app/slendertone-connect/id980641515/reviews)** | — |
| Number of ratings | **456** | — |
| Positive reviews | 17.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 37 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Slendertone](https://appshunter.io/developer/980641514) | [中玲 曹](https://appshunter.io/developer/1682161709) |

## What reviewers say

### Slendertone Connect

[App page](https://appshunter.io/ios/app/slendertone-connect/id980641515)

This app offers a personalized training experience to help you achieve your toning goals. It provides custom coaching, interactive programs, workout reminders, and progress tracking, all controlled wirelessly via your smart device. Achieve firmer abs, improved posture, and enhanced core strength.

**Highlights:** Personalized training experience, Custom toning programs, Interactive toning programs, Workout reminders, Progress tracking, Wireless control via smart device

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Consistent performance
- 💪 Effective for toning

**What reviewers complain about**

- 🐛 Frequent disconnections
- ⚠️ Unreliable app
- 🔁 Constant need to re-pair
- 💻 Buggy and crash-prone
- 🔒 Privacy concerns

**Reported bugs**

- Login issues
- Connectivity problems
- Crashes during setup
- Data loss and progress not tracked

**Requested features**

- Integration with Apple Health
- Apple Watch app
- Stay-logged-in option


### RLT SYSTEM MASTER

[App page](https://appshunter.io/ios/app/rlt-system-master/id6790787023)

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

**In-app purchases:** none


## Frequently asked questions

### Is Slendertone Connect free?

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

### Is RLT SYSTEM MASTER free?

RLT SYSTEM MASTER is free to download, with no in-app purchases.

### Do Slendertone Connect or RLT SYSTEM MASTER have ads?

Slendertone Connect shows ads; RLT SYSTEM MASTER does not.

### Which is updated more often, Slendertone Connect or RLT SYSTEM MASTER?

Slendertone Connect ships an update every 2 months, and RLT SYSTEM MASTER every 4 days. Most recently, Slendertone Connect was updated on October 24, 2026 and RLT SYSTEM MASTER on October 14, 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.*