# J vs Eros Scale

The clearest difference is review sentiment: J at 100% against Eros Scale's 25%. J also leads on rating (4.8 vs 3.1) and ads (none vs shown). Eros Scale's advantage is price (Free vs $0.99) and update cadence (every 4 months vs every 10 months). On in-app purchases and device support there is nothing between them.

Eros Scale is free to download; J costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

J holds the better App Store score, 4.8 against 3.1. That said, the two scores are not equally well evidenced: Eros Scale has 38 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of J's written reviews are positive against 25% of Eros Scale's.

J ships an update every 10 months, Eros Scale every 4 months. The most recent releases landed on September 21, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | J | Eros Scale |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/j-walker/id1255944014/reviews)** | [3.1 (38 ratings)](https://appshunter.io/ios/app/eros-scale/id1473780177/reviews) |
| Number of ratings | 4 | **38** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 9 MB | 40 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Mullaney](https://appshunter.io/developer/939500682) | [INEVIFIT LLC](https://appshunter.io/developer/1450358345) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-walker/id1255944014)

This straightforward fitness tracker focuses on recording your walks and runs. It accurately logs distance, time, and pace without unnecessary features or data collection. All your workout history is securely stored on your device.

**Highlights:** Tracks distance, time, and pace, Simple, intuitive interface, Workout history review, Real-time progress display, Robust and fault-tolerant design, All data stored locally

**Features:** macOS Compatibility

**In-app purchases:** none


### Eros Scale

[App page](https://appshunter.io/ios/app/eros-scale/id1473780177)

Connect your smart body fat scale to your smartphone to automatically track multiple users' health metrics. Monitor weight, body fat, muscle mass, and more with historical charts for easy progress viewing.

**Highlights:** Automatic smart scale connection, Unlimited user tracking, Comprehensive body composition metrics, Historical progress charts, Apple Health Kit integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is J free?

J costs $0.99, with no in-app purchases.

### Is Eros Scale free?

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

### Which has better reviews, J or Eros Scale?

J is rated higher. J averages 4.8 out of 5 from 4 ratings, while Eros Scale averages 3.1 from 38 ratings.

### Do J or Eros Scale have ads?

Eros Scale shows ads; J does not.

### Which is updated more often, J or Eros Scale?

J ships an update every 10 months, and Eros Scale every 4 months. Most recently, J was updated on September 21, 2026 and Eros Scale on August 16, 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.*