# BioPerformance Institute vs SD

BioPerformance Institute and SD are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

BioPerformance Institute ships an update weekly, SD every 4 days. The most recent releases landed on October 5, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BioPerformance Institute | SD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 16 MB | 16 MB |
| Requires iOS | 13.0.0 | 13.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shellman, Inc](https://appshunter.io/developer/1712862537) | [STUDIO DEPENDANCE INC.](https://appshunter.io/developer/6773266574) |

## What reviewers say

### BioPerformance Institute

[App page](https://appshunter.io/ios/app/bioperformance-institute/id6470026422)

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

**In-app purchases:** none


### SD

[App page](https://appshunter.io/ios/app/sd/id6773266302)

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

**In-app purchases:** none


## Frequently asked questions

### Is BioPerformance Institute free?

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

### Is SD free?

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

### Do BioPerformance Institute or SD have ads?

Neither BioPerformance Institute nor SD shows ads.

### Which is updated more often, BioPerformance Institute or SD?

BioPerformance Institute ships an update weekly, and SD every 4 days. Most recently, BioPerformance Institute was updated on October 5, 2026 and SD on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*