# Spruce Micro vs Calibrate25 EMS

The clearest difference is rating: Calibrate25 EMS at 5.0 against Spruce Micro's 2.0. On price, ratings volume, update cadence and ads there is nothing between them.

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

Calibrate25 EMS holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Spruce Micro ships an update weekly, Calibrate25 EMS every 2 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Spruce Micro | Calibrate25 EMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/spruce-micro/id1661928070/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calibrate25-ems/id6758111985/reviews)** |
| Number of ratings | **4** | 3 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 373 MB | 386 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christiane Cutrone](https://appshunter.io/developer/1661928072) | [Alina Goldin](https://appshunter.io/developer/1870971834) |

## What reviewers say

### Spruce Micro

[App page](https://appshunter.io/ios/app/spruce-micro/id1661928070)

Connect with certified skincare specialists for expert advice and treatments. View before-and-after results from satisfied clients and discover why this service is top-ranked nationally.

**Highlights:** Certified ZO Skin Health specialists, Ranked #1 ZO Skin Health account in Louisiana, Top 1% ZO Skin Health account in the US, High success rate, Before-and-after photos, Training with world-renowned masters

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Calibrate25 EMS

[App page](https://appshunter.io/ios/app/calibrate25-ems/id6758111985)

Experience high-performance personal training with electro muscle stimulation in just 25 minutes. Activate up to 90% of your muscles for rapid strength gains, toning, and enhanced recovery within a private, boutique studio setting.

**Highlights:** 25-minute sessions, EMS technology, Full muscle activation, Strength and toning, Faster recovery, Private studio experience

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

**In-app purchases:** none


## Frequently asked questions

### Is Spruce Micro free?

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

### Is Calibrate25 EMS free?

Calibrate25 EMS is free to download, with no in-app purchases.

### Which has better reviews, Spruce Micro or Calibrate25 EMS?

Calibrate25 EMS is rated higher. Spruce Micro averages 2.0 out of 5 from 4 ratings, while Calibrate25 EMS averages 5.0 from 3 ratings.

### Do Spruce Micro or Calibrate25 EMS have ads?

Neither Spruce Micro nor Calibrate25 EMS shows ads.

### Which is updated more often, Spruce Micro or Calibrate25 EMS?

Spruce Micro ships an update weekly, and Calibrate25 EMS every 2 weeks. Most recently, Spruce Micro was updated on October 2, 2026 and Calibrate25 EMS on October 3, 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.*