# Suji vs GSSI Labs

The clearest difference is rating: GSSI Labs at 5.0 against Suji's 3.5. GSSI Labs also leads on in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.0). Suji's advantage is ratings volume (14 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Suji sells 1 in-app purchase, starting at $4.99 per month. GSSI Labs asks for nothing beyond the download.

GSSI Labs holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Suji has 14 ratings behind it against 1, so its average is the more settled of the two.

Suji ships an update every 3 weeks, GSSI Labs every 5 weeks. Both last shipped on November 4, 2026.

## The numbers

| Metric | Suji | GSSI Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (14 ratings)](https://appshunter.io/ios/app/suji/id6493856498/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gssi-labs/id6782131488/reviews)** |
| Number of ratings | **14** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Freemium | **Free** |
| Size | 503 MB | 195 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [SujiBFR](https://appshunter.io/developer/1534129267) | [PepsiCo, Inc.](https://appshunter.io/developer/492265869) |

## What reviewers say

### Suji

[App page](https://appshunter.io/ios/app/suji/id6493856498)

This app utilizes targeted compression technology to alleviate joint pain and enhance isolated muscle strength. It aids in accelerating muscle recovery, requiring a compatible device. It is not intended for professional sports medicine training.

**Highlights:** Targeted compression technology, Joint pain relief, Increase isolated muscle strength, Accelerate muscle recovery, Requires compatible device

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Suji Athlete Subscription | $4.99 | per month |


### GSSI Labs

[App page](https://appshunter.io/ios/app/gssi-labs/id6782131488)

Contribute to sports science research by completing studies and surveys. Connect your fitness data to earn points redeemable for gift cards. Help shape the future of athletic performance.

**Highlights:** Complete scientific studies, Participate in surveys, Connect fitness data, Earn points, Redeem for gift cards

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

**In-app purchases:** none


## Frequently asked questions

### Is Suji free?

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

### Is GSSI Labs free?

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

### Which has better reviews, Suji or GSSI Labs?

GSSI Labs is rated higher. Suji averages 3.5 out of 5 from 14 ratings, while GSSI Labs averages 5.0 from 1 ratings.

### Do Suji or GSSI Labs have ads?

Neither Suji nor GSSI Labs shows ads.

### Which is updated more often, Suji or GSSI Labs?

Suji ships an update every 3 weeks, and GSSI Labs every 5 weeks. Most recently, Suji was updated on November 4, 2026 and GSSI Labs on November 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.*