# Vit Calc vs Trition

The clearest difference is in-app purchases: Vit Calc at none against Trition's 1. Vit Calc also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Trition sells 1 in-app purchase, starting at $7.99 per month. Vit Calc asks for nothing beyond the download.

Vit Calc ships an update every 2 weeks, Trition fortnightly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Vit Calc | Trition |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 2 MB | 17 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rod Bauer](https://appshunter.io/developer/868039735) | [Benjamin Van Meter](https://appshunter.io/developer/1475609352) |

## What reviewers say

### Vit Calc

[App page](https://appshunter.io/ios/app/vit-calc/id868039732)

**Features:** macOS Compatibility

**In-app purchases:** none


### Trition

[App page](https://appshunter.io/ios/app/trition/id1670744531)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Tier | $7.99 | per month |


## Frequently asked questions

### Is Vit Calc free?

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

### Is Trition free?

Trition is free to download, with in-app purchases available.

### Do Vit Calc or Trition have ads?

Neither Vit Calc nor Trition shows ads.

### Which is updated more often, Vit Calc or Trition?

Vit Calc ships an update every 2 weeks, and Trition fortnightly. Most recently, Vit Calc was updated on October 26, 2026 and Trition on October 27, 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.*