# Calibrex App vs Stim Check

The clearest difference is review sentiment: Stim Check at 100% against Calibrex App's 50%. Stim Check also leads on rating (5.0 vs 3.5). 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.

Stim Check holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews point the same way: 50% of Calibrex App's written reviews are positive against 100% of Stim Check's.

Calibrex App ships an update fortnightly, Stim Check every 11 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Calibrex App | Stim Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (11 ratings)](https://appshunter.io/ios/app/calibrex-app/id6741951538/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stim-check/id6761864466/reviews)** |
| Number of ratings | **11** | 5 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | Free | Free |
| Size | 150 MB | 28 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [CalibrexInc](https://appshunter.io/developer/1485591463) | [Edward Nepomuceno](https://appshunter.io/developer/1816353135) |

## What reviewers say

### Calibrex App

[App page](https://appshunter.io/ios/app/calibrex-app/id6741951538)

This wearable device precisely tracks your weightlifting reps, rest, and movements. It provides personalized insights into your training, offering live audio coaching and tailored workouts to help you achieve your strength, speed, or endurance goals.

**Highlights:** Precise rep, rest, and movement tracking, Live audio coaching tailored to goals, Personalized insights into training performance, Advanced tracking and tailored workouts, Set Score, Difficulty Score, Speed Score, Tempo Score, Discover training trends and program balance

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

**In-app purchases:** none


### Stim Check

[App page](https://appshunter.io/ios/app/stim-check/id6761864466)

Track your caffeine intake and visualize how it affects your system over time. This tool helps you understand when caffeine will wear off, allowing for better management of sleep, performance, and recovery.

**Highlights:** Log caffeine intake from various sources, Visualize caffeine levels over time, Estimate caffeine half-life, Determine 'clear by' time for sleep safety, Simple and fast user interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Calibrex App free?

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

### Is Stim Check free?

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

### Which has better reviews, Calibrex App or Stim Check?

Stim Check is rated higher. Calibrex App averages 3.5 out of 5 from 11 ratings, while Stim Check averages 5.0 from 5 ratings.

### Do Calibrex App or Stim Check have ads?

Neither Calibrex App nor Stim Check shows ads.

### Which is updated more often, Calibrex App or Stim Check?

Calibrex App ships an update fortnightly, and Stim Check every 11 days. Most recently, Calibrex App was updated on October 30, 2026 and Stim Check on November 5, 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.*