# PeriOptimization Lite vs CSTSetup

The clearest difference is rating: PeriOptimization Lite at 5.0 against CSTSetup's 4.4. PeriOptimization Lite also leads on in-app purchases (none vs 2) and iOS requirement (11.0 vs 16.4). CSTSetup's advantage is chart position (#191 vs unranked) and ratings volume (7 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CSTSetup sells 2 in-app purchases, starting at $12.99 per month. PeriOptimization Lite asks for nothing beyond the download.

PeriOptimization Lite holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: CSTSetup has 7 ratings behind it against 1, so its average is the more settled of the two.

PeriOptimization Lite ships an update every 6 days, CSTSetup weekly. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PeriOptimization Lite | CSTSetup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perioptimization-lite/id1661614588/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/cstsetup-case-prep-and-setups/id6760922022/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Weekly |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#191** |
| Size | 34 MB | 59 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Shankara Subramanian](https://appshunter.io/developer/1661614590) | [CSTSetup](https://appshunter.io/developer/1886831213) |

## What reviewers say

### PeriOptimization Lite

[App page](https://appshunter.io/ios/app/perioptimization-lite/id1661614588)

This app assists surgical staff in preparing for procedures by providing guidance on positioning, equipment, and instrumentation. It includes instructional videos and expert tips to ensure all necessary materials are ready before a case begins.

**Highlights:** Surgical procedure preparation guidance, Equipment and instrumentation instructions, Patient positioning advice, Instructional videos, Expert tips from perioperative nurses

**Features:** macOS Compatibility

**In-app purchases:** none


### CSTSetup

[App page](https://appshunter.io/ios/app/cstsetup-case-prep-and-setups/id6760922022)

**Currently charting:** #191 Top Grossing · Medical (US App Store)

This app provides surgical technologists, students, and educators with a comprehensive library of surgical setups, instrument details, and case log verification. Master hundreds of procedures, identify over 2,700 instruments, and ensure your clinical experience counts towards your logbook.

**Highlights:** Hundreds of surgical setups, 2,700+ instrument library, Instrument identification and details, Surgical case log evaluator, Procedural blueprints, Instrument handling cautions

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CSTSetup Monthly Pro | $12.99 | per month |
| CSTSetup Yearly Pro | $155.99 | per year |


## Frequently asked questions

### Is PeriOptimization Lite free?

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

### Is CSTSetup free?

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

### Which has better reviews, PeriOptimization Lite or CSTSetup?

PeriOptimization Lite is rated higher. PeriOptimization Lite averages 5.0 out of 5 from 1 ratings, while CSTSetup averages 4.4 from 7 ratings.

### Do PeriOptimization Lite or CSTSetup have ads?

Neither PeriOptimization Lite nor CSTSetup shows ads.

### Which is updated more often, PeriOptimization Lite or CSTSetup?

PeriOptimization Lite ships an update every 6 days, and CSTSetup weekly. Most recently, PeriOptimization Lite was updated on October 5, 2026 and CSTSetup on October 16, 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.*