# 131 App vs Cal Track

The clearest difference is in-app purchases: 131 App at none against Cal Track's 2. 131 App also leads on iOS requirement (13.0 vs 16.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cal Track sells 2 in-app purchases, starting at $5.99 per month. 131 App asks for nothing beyond the download.

131 App ships an update every 6 days, Cal Track weekly. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 131 App | Cal Track |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Size | 25 MB | 68 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dot 1 Technologies VBA](https://appshunter.io/developer/1085642646) | [ArmusTech LLC](https://appshunter.io/developer/1821489343) |

## What reviewers say

### 131 App

[App page](https://appshunter.io/ios/app/131-app/id1513503676)

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

**In-app purchases:** none


### Cal Track

[App page](https://appshunter.io/ios/app/cal-track-nutritional-tracker/id6747451946)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cal Track Premium Monthly | $5.99 | per month |
| Cal Track Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is 131 App free?

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

### Is Cal Track free?

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

### Do 131 App or Cal Track have ads?

Neither 131 App nor Cal Track shows ads.

### Which is updated more often, 131 App or Cal Track?

131 App ships an update every 6 days, and Cal Track weekly. Most recently, 131 App was updated on October 27, 2026 and Cal Track on October 15, 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.*