# Stamina Center vs TRIIINITY

The clearest difference is update cadence: TRIIINITY at every 2 months against Stamina Center's every 16 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Stamina Center ships an update every 16 months, TRIIINITY every 2 months. The most recent releases landed on October 7, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Stamina Center | TRIIINITY |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Size | 29 MB | 101 MB |
| Requires iOS | **13.0** | 14.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ilona Mishkina](https://appshunter.io/developer/1585192969) | [VDOMA LLC](https://appshunter.io/developer/1698482568) |

## What reviewers say

### Stamina Center

[App page](https://appshunter.io/ios/app/stamina-center/id1585192967)

**Features:** macOS Compatibility

**In-app purchases:** none


### TRIIINITY

[App page](https://appshunter.io/ios/app/triiinity/id1601529013)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stamina Center free?

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

### Is TRIIINITY free?

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

### Do Stamina Center or TRIIINITY have ads?

Neither Stamina Center nor TRIIINITY shows ads.

### Which is updated more often, Stamina Center or TRIIINITY?

Stamina Center ships an update every 16 months, and TRIIINITY every 2 months. Most recently, Stamina Center was updated on October 7, 2026 and TRIIINITY on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*