# Flex vs SerenityAtWork

The clearest difference is review sentiment: SerenityAtWork at 100% against Flex's 48%. SerenityAtWork also leads on in-app purchases (none vs 7) and iOS requirement (13.0 vs 15.6). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Flex sells 6 in-app purchases, starting at $2.99 per month. SerenityAtWork asks for nothing beyond the download.

Flex ships an update every 3 weeks, SerenityAtWork every 2 weeks. The most recent releases landed on September 22, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Flex | SerenityAtWork |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/flex/id1551175364/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 48.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 87 MB | 65 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MMSPORT](https://appshunter.io/developer/1094277528) | [Studiolab](https://appshunter.io/developer/1594255998) |

## What reviewers say

### Flex

[App page](https://appshunter.io/ios/app/flex/id1551175364)

This app consolidates workplace wellness services, including gym access, well-being treatments, and electric bike sharing. It allows users to manage gym memberships, book classes, schedule appointments with practitioners, and reserve bikes.

**Highlights:** Gym news and class booking, Well-being and soft medicine services, Appointment scheduling for practitioners, Electric bike sharing and management, Workplace service integration

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Abonnement podcast mensuel | $2.99 | per month |
| Cours en ligne - Mensuel | $4.49 | per month |
| Podcasts annuel | $13.99 | per year |
| Cours en ligne abo annuel | $18.49 | per year |
| Cours en ligne - Annuel | $18.49 | per year |
| Cours en ligne abo annuel | $18.99 | per year |


### SerenityAtWork

[App page](https://appshunter.io/ios/app/serenityatwork/id6636495184)

This app helps fitness members track workouts and gym attendance, while coaches can manage clients and schedules. It features an intuitive interface and integrated messaging for seamless communication and support.

**Highlights:** Track fitness programs, Monitor gym attendance, Integrated messaging, Client management for coaches, Schedule personalized sessions, Real-time presence tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flex free?

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

### Is SerenityAtWork free?

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

### Do Flex or SerenityAtWork have ads?

Neither Flex nor SerenityAtWork shows ads.

### Which is updated more often, Flex or SerenityAtWork?

Flex ships an update every 3 weeks, and SerenityAtWork every 2 weeks. Most recently, Flex was updated on September 22, 2026 and SerenityAtWork on June 4, 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.*