# Modus Research vs 8sole Flex

The clearest difference is update cadence: 8sole Flex at every 3 weeks against Modus Research's every 7 months. Modus Research's advantage is iOS requirement (12.0 vs 16.0). 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.

Modus Research ships an update every 7 months, 8sole Flex every 3 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Modus Research | 8sole Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/modus-research/id1539982424/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 73 MB | 44 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Modus Health Llc](https://appshunter.io/developer/1420572411) | [Invent Medical Group, s.r.o.](https://appshunter.io/developer/1488332944) |

## What reviewers say

### Modus Research

[App page](https://appshunter.io/ios/app/modus-research/id1539982424)

This application works with a specific activity monitor to collect and analyze your health data. It provides insights into your physical activity, helping you understand your fitness trends. The platform is designed for users who want to track their progress with a compatible device.

**Highlights:** Activity monitoring, Health data analysis, Fitness trend insights, StepWatch integration, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### 8sole Flex

[App page](https://appshunter.io/ios/app/8sole-flex/id6745783885)

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

**In-app purchases:** none


## Frequently asked questions

### Is Modus Research free?

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

### Is 8sole Flex free?

8sole Flex is free to download, with no in-app purchases.

### Do Modus Research or 8sole Flex have ads?

Neither Modus Research nor 8sole Flex shows ads.

### Which is updated more often, Modus Research or 8sole Flex?

Modus Research ships an update every 7 months, and 8sole Flex every 3 weeks. Most recently, Modus Research was updated on October 27, 2026 and 8sole Flex on October 28, 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.*