# Shadowtrainer vs RBL FIT

The clearest difference is in-app purchases: RBL FIT at none against Shadowtrainer's 1. Shadowtrainer's advantage is ads (none vs shown) and update cadence (fortnightly vs every 12 months). On price and device support there is nothing between them.

Both are free to download. Shadowtrainer sells 1 one-off in-app purchase. RBL FIT asks for nothing beyond the download.

Shadowtrainer ships an update fortnightly, RBL FIT every 12 months. The most recent releases landed on September 24, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Shadowtrainer | RBL FIT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 12 months |
| Size | 48 MB | 87 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Thunk Tech Limited](https://appshunter.io/developer/1733288622) | [Kukulu Fitness, LLC](https://appshunter.io/developer/1789704135) |

## What reviewers say

### Shadowtrainer

[App page](https://appshunter.io/ios/app/shadowtrainer/id6478547117)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


### RBL FIT

[App page](https://appshunter.io/ios/app/rbl-fit/id6740388856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Shadowtrainer free?

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

### Is RBL FIT free?

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

### Do Shadowtrainer or RBL FIT have ads?

RBL FIT shows ads; Shadowtrainer does not.

### Which is updated more often, Shadowtrainer or RBL FIT?

Shadowtrainer ships an update fortnightly, and RBL FIT every 12 months. Most recently, Shadowtrainer was updated on September 24, 2026 and RBL FIT on October 2, 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.*