# Flux vs n=1

The clearest difference is in-app purchases: n=1 at none against Flux's 2. n=1 also leads on update cadence (every 4 days vs every 6 weeks). Flux's advantage is iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Flux sells 2 in-app purchases, starting at $19.99 per month. n=1 asks for nothing beyond the download.

Flux ships an update every 6 weeks, n=1 every 4 days. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Flux | n=1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Size | 40 MB | 2 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Anthony Awdi](https://appshunter.io/developer/1890533867) | [Gennadii Tsypenko](https://appshunter.io/developer/1812286268) |

## What reviewers say

### Flux

[App page](https://appshunter.io/ios/app/flux-men-cycle-tracker/id6761628489)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flux Premium | $19.99 | per month |
| Flux Premium | $119.99 | per year |


### n=1

[App page](https://appshunter.io/ios/app/n1-longevity-tracker/id6762523189)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flux free?

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

### Is n=1 free?

n=1 is free to download, with no in-app purchases.

### Do Flux or n=1 have ads?

Neither Flux nor n=1 shows ads.

### Which is updated more often, Flux or n=1?

Flux ships an update every 6 weeks, and n=1 every 4 days. Most recently, Flux was updated on September 27, 2026 and n=1 on September 30, 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.*