# Fitness Zone NS vs Flex Longevity

The clearest difference is update cadence: Flex Longevity at monthly against Fitness Zone NS's every 46 months. Fitness Zone NS's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

Fitness Zone NS ships an update every 46 months, Flex Longevity monthly. The most recent releases landed on September 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Fitness Zone NS | Flex Longevity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Monthly** |
| Size | 50 MB | 99 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thinkit doo](https://appshunter.io/developer/1392908612) | [Andrea Solutions](https://appshunter.io/developer/1734094747) |

## What reviewers say

### Fitness Zone NS

[App page](https://appshunter.io/ios/app/fitness-zone-ns/id1601817786)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flex Longevity

[App page](https://appshunter.io/ios/app/flex-longevity/id6667106405)

**In-app purchases:** none


## Frequently asked questions

### Is Fitness Zone NS free?

Fitness Zone NS is free to download, with no in-app purchases.

### Is Flex Longevity free?

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

### Do Fitness Zone NS or Flex Longevity have ads?

Neither Fitness Zone NS nor Flex Longevity shows ads.

### Which is updated more often, Fitness Zone NS or Flex Longevity?

Fitness Zone NS ships an update every 46 months, and Flex Longevity monthly. Most recently, Fitness Zone NS was updated on September 29, 2026 and Flex Longevity on October 25, 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.*