# Inner Armor vs Diamond Stat Tracker

The clearest difference is price: Inner Armor at Free against Diamond Stat Tracker's $0.99. Inner Armor also leads on iOS requirement (15.1 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Inner Armor is free to download; Diamond Stat Tracker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on August 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Inner Armor | Diamond Stat Tracker |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (40 ratings)](https://appshunter.io/ios/app/inner-armor/id6471288699/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free | — |
| Size | 304 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Inner Armor](https://appshunter.io/developer/1715033393) | [JOSEPH ROBERT KNITTEL](https://appshunter.io/developer/1884364347) |

## What reviewers say

### Inner Armor

[App page](https://appshunter.io/ios/app/inner-armor/id6471288699)

Enhance athletic resilience and reach peak performance with advanced training techniques. This app integrates with a sensor to track key physiological metrics like heart rate and body temperature. It is designed for training purposes and not for medical use.

**Highlights:** Performance training techniques, Resilience enhancement, Heart rate detection, Body temperature monitoring, Skin conductance tracking, Respiration monitoring

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

**In-app purchases:** none


### Diamond Stat Tracker

[App page](https://appshunter.io/ios/app/diamond-stat-tracker/id6760986560)

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

**In-app purchases:** none


## Frequently asked questions

### Is Inner Armor free?

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

### Is Diamond Stat Tracker free?

Diamond Stat Tracker costs $0.99, with no in-app purchases.

### Do Inner Armor or Diamond Stat Tracker have ads?

Neither Inner Armor nor Diamond Stat Tracker shows ads.

### Which is updated more often, Inner Armor or Diamond Stat Tracker?

Inner Armor ships an update every 2 weeks, and Diamond Stat Tracker every 2 weeks. Most recently, Inner Armor was updated on August 19, 2026 and Diamond Stat Tracker on September 22, 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.*