# Speed4Lifts vs ADR System

The clearest difference is update cadence: Speed4Lifts at monthly against ADR System's every 7 months. Speed4Lifts also leads on review sentiment (70% vs 44%) and iOS requirement (12.3 vs 17.6). ADR System's advantage is monetization model (free vs ad-supported). On price, ads, 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.

Speed4Lifts ships an update monthly, ADR System every 7 months. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Speed4Lifts | ADR System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (70 ratings)](https://appshunter.io/ios/app/speed4lifts/id1356222486/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | **70.3% of reviews** | 44.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Ad-supported | **Free** |
| Size | 96 MB | 18 MB |
| Requires iOS | **12.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SPEED4LIFTS S.L](https://appshunter.io/developer/1356222485) | [Lucia Escobar Morales](https://appshunter.io/developer/1518635682) |

## What reviewers say

### Speed4Lifts

[App page](https://appshunter.io/ios/app/speed4lifts/id1356222486)

This app tracks strength training data to enhance progress. It connects with a specific encoder to analyze performance and create personalized training plans based on scientific Velocity-Based Training principles. It helps calculate daily 1RM and adjust fatigue levels.

**Highlights:** Collects strength training data, Connects with Vitruve encoder, Analyzes performance status, Creates personalized training plans, Calculates daily 1RM, Adjusts fatigue levels, Reduces risk of injury

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

**In-app purchases:** none


### ADR System

[App page](https://appshunter.io/ios/app/adr-system/id1518635683)

Monitor and optimize strength training and jump assessments wirelessly via Bluetooth. Quickly view athlete performance data, measure key metrics like reactive strength index and estimated 1RM, and create custom load-velocity profiles. Manage multiple athletes with unlimited free storage.

**Highlights:** Wireless Bluetooth connectivity, Strength and jump performance monitoring, Reactive strength index measurement, Estimated daily 1RM calculation, Jump height and flight time tracking, Customizable load-velocity profiles, Athlete profile management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Speed4Lifts free?

Speed4Lifts is free to download, with no in-app purchases.

### Is ADR System free?

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

### Do Speed4Lifts or ADR System have ads?

Neither Speed4Lifts nor ADR System shows ads.

### Which is updated more often, Speed4Lifts or ADR System?

Speed4Lifts ships an update monthly, and ADR System every 7 months. Most recently, Speed4Lifts was updated on October 29, 2026 and ADR System on October 8, 2026.

---

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