# Spren Body Composition Scanner vs ZERO Training Center

The clearest difference is in-app purchases: ZERO Training Center at none against Spren Body Composition Scanner's 10. ZERO Training Center also leads on rating (5.0 vs 4.7) and device support (3 vs 1). Spren Body Composition Scanner's advantage is ratings volume (1.5K vs 2) and update cadence (every 9 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. Spren Body Composition Scanner sells 10 in-app purchases, starting at $10.49 per month. ZERO Training Center asks for nothing beyond the download.

ZERO Training Center holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Spren Body Composition Scanner has 1.5K ratings behind it against 2, so its average is the more settled of the two.

Spren Body Composition Scanner ships an update every 9 days, ZERO Training Center every 3 weeks. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Spren Body Composition Scanner | ZERO Training Center |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (1.5K ratings)](https://appshunter.io/ios/app/spren-body-composition-scanner/id1664503999/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zero-training-center/id6746328015/reviews)** |
| Number of ratings | **1.5K** | 2 |
| Positive reviews | 46.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 207 MB | 31 MB |
| Requires iOS | 17 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Elite HRV Inc](https://appshunter.io/developer/868829973) | [TeamUp Sports](https://appshunter.io/developer/1449504626) |

## What reviewers say

### Spren Body Composition Scanner

[App page](https://appshunter.io/ios/app/spren-body-composition-scanner/id1664503999)

This app uses your smartphone to measure body fat percentage, BMI, and body composition. It provides detailed health reports, tracks weight loss, and offers personalized nutrition plans, acting as a smart scale alternative with research-grade analysis.

**Highlights:** Body fat percentage measurement, BMI calculator, Body composition analysis, Weight tracking, Personalized nutrition planning, Multi-page PDF reports

**Features:** Apple Wallet, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scan Essentials | $10.49 | per month |
| Monthly | $14.99 | per month |
| Monthly | $19.99 | per month |
| 24/7 AI coaching support | $20.99 | per month |
| Scan Essentials | $38.99 | per year |
| Quarterly | $59.99 | per 3 months |
| Annual | $69.99 | per year |
| Annual | $119.99 | per year |
| 24/7 AI coaching support | $129.00 | per year |
| Body Composition Analysis | $17.99 | one-time |

**What reviewers like**

- 👍 Easy to operate
- 🚀 Motivating
- 👍 Incredible app
- 👍 Accurate
- 👍 Talks you through the scan

**What reviewers complain about**

- 🐛 No login possible
- 🐛 Doesn't work
- 🐛 Measurements are nowhere close to DEXA scans
- 🐛 Can't delete account
- 🐛 Useless

**Reported bugs**

- No login possible
- Doesn't work
- Measurements are nowhere close to DEXA scans
- Can't delete account
- Useless

**Requested features**

- Integration with Apple Health for weight tracking
- Demo or trial before subscription
- Monthly subscription option


### ZERO Training Center

[App page](https://appshunter.io/ios/app/zero-training-center/id6746328015)

This app helps you manage your health and fitness journey. Book classes, track workout progress, monitor body measurements, and connect with club staff. It integrates with Apple Health to import data from wearables and track daily activity.

**Highlights:** Book classes online, Track workout progress, Monitor body measurements, Contact club staff, Apple Health integration, Import wearable data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spren Body Composition Scanner free?

Spren Body Composition Scanner is free to download, with in-app purchases available.

### Is ZERO Training Center free?

ZERO Training Center is free to download, with no in-app purchases.

### Which has better reviews, Spren Body Composition Scanner or ZERO Training Center?

ZERO Training Center is rated higher. Spren Body Composition Scanner averages 4.7 out of 5 from 1.5K ratings, while ZERO Training Center averages 5.0 from 2 ratings.

### Do Spren Body Composition Scanner or ZERO Training Center have ads?

Neither Spren Body Composition Scanner nor ZERO Training Center shows ads.

### Which is updated more often, Spren Body Composition Scanner or ZERO Training Center?

Spren Body Composition Scanner ships an update every 9 days, and ZERO Training Center every 3 weeks. Most recently, Spren Body Composition Scanner was updated on November 7, 2026 and ZERO Training Center on October 30, 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.*