# SigmaMD vs Smith Performance Center

The clearest difference is rating: Smith Performance Center at 5.0 against SigmaMD's 3.1. Smith Performance Center also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). SigmaMD's advantage is ratings volume (42 vs 9). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Smith Performance Center holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 42 and 9 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SigmaMD | Smith Performance Center |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (42 ratings)](https://appshunter.io/ios/app/sigmamd/id1603743862/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/smith-performance-center/id6443876513/reviews)** |
| Number of ratings | **42** | 9 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 66 MB | 427 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Sigmoid Health](https://appshunter.io/developer/1601717786) | [Smith Performance Center LLC](https://appshunter.io/developer/1650194309) |

## What reviewers say

### SigmaMD

[App page](https://appshunter.io/ios/app/sigmamd/id1603743862)

This app consolidates your health data from various patient portals, offering a comprehensive view of your medical history. It provides trusted health insights and facilitates secure communication with healthcare providers for appointment scheduling and payment management.

**Highlights:** Aggregate and consolidate health data, Access trusted health insights, Secure physician-patient sessions, Schedule and manage appointments, Manage payments and view invoices

**Features:** Vision Pro support

**In-app purchases:** none


### Smith Performance Center

[App page](https://appshunter.io/ios/app/smith-performance-center/id6443876513)

This app offers guided physical therapy and strength training programs to help users manage their health and live an active lifestyle. It provides easy-to-follow workouts, access to coaches for motivation, and injury rehabilitation exercises.

**Highlights:** Easy workout programs on phone, Access training on the go, Coach communication for accountability, Injury rehabilitation exercises, Sync with Apple Health

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

**In-app purchases:** none


## Frequently asked questions

### Is SigmaMD free?

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

### Is Smith Performance Center free?

Smith Performance Center is free to download, with no in-app purchases.

### Which has better reviews, SigmaMD or Smith Performance Center?

Smith Performance Center is rated higher. SigmaMD averages 3.1 out of 5 from 42 ratings, while Smith Performance Center averages 5.0 from 9 ratings.

### Do SigmaMD or Smith Performance Center have ads?

Neither SigmaMD nor Smith Performance Center shows ads.

### Which is updated more often, SigmaMD or Smith Performance Center?

SigmaMD ships an update every 3 weeks, and Smith Performance Center every 3 weeks. Most recently, SigmaMD was updated on November 7, 2026 and Smith Performance Center on November 3, 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.*