# Flex Pilates Studio vs Invoy+

The clearest difference is update cadence: Invoy+ at fortnightly against Flex Pilates Studio's every 4 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.

Flex Pilates Studio ships an update every 4 months, Invoy+ fortnightly. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Flex Pilates Studio | Invoy+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/invoy-plus/id6773406343/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 121 MB | 99 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Invoy, LLC.](https://appshunter.io/developer/985872372) |

## What reviewers say

### Flex Pilates Studio

[App page](https://appshunter.io/ios/app/flex-pilates-studio/id6764139261)

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

**In-app purchases:** none


### Invoy+

[App page](https://appshunter.io/ios/app/invoy-plus/id6773406343)

Understand your metabolism with daily breath tests and personalized guidance. Track your fat burn, weight, and key health metrics to see how your habits impact your results. Designed for those seeking data-driven insights for lasting health changes.

**Highlights:** Daily fat burn measurement via breath test, Track weight and health metrics, Analyze habit impact on metabolism, Personalized guidance and insights, Monitor progress with trends, Integrates with Apple Health

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

**In-app purchases:** none


## Frequently asked questions

### Is Flex Pilates Studio free?

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

### Is Invoy+ free?

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

### Do Flex Pilates Studio or Invoy+ have ads?

Neither Flex Pilates Studio nor Invoy+ shows ads.

### Which is updated more often, Flex Pilates Studio or Invoy+?

Flex Pilates Studio ships an update every 4 months, and Invoy+ fortnightly. Most recently, Flex Pilates Studio was updated on October 4, 2026 and Invoy+ on October 16, 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.*