Comparison

Build CLS vs Sim Vitals

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Vital Sign Simulation in situ

Free

📚 Education

No ratingsView app →

About

Build CLS

Read full description

CLS Build contains course materials and links to externally hosted resources to bring you a fully online/offline experience.

About

Sim Vitals

Features

Read full description

Simulation is the foundation of high quality medical education. I made this app so that sim could be freely available to all, without breaking the bank. Any device can be the controller or the monitor. Use the same login, or share a session, and the vitals update straight away. Beeps included! The control panel allows you to manipulate the scenario to suit your needs: - Adjust HR, BP, CO2, RR, BIS reading - Trigger cardiac arrest - Adjust the cardiac rhythm - Run through pre-build scenarios which automatically adjust the vitals - Talking points for discussion and Links to resources for further discussion Terms and Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Build CLS3 screens

Sim Vitals4 screens

Verdict

The call

The clearest difference is in-app purchases: Build CLS at none against Sim Vitals's 4. Sim Vitals's advantage is update cadence (every 9 months vs every 19 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sim Vitals sells 4 in-app purchases, starting at $0.99 per month. Build CLS asks for nothing beyond the download.

UpkeepUpdate frequency

Build CLS ships an update every 19 months, Sim Vitals every 9 months. The most recent releases landed on September 13, 2026 and September 19, 2026 respectively.

Scorecard2 real differences · 4 level

Build CLS versus Sim Vitals: the parameters behind the verdict, then further details
Parameter	Build CLS	Sim Vitals
Price	Free	Free
Update frequency	Every 19 months	Every 9 months — better
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0	13.0
Further details — not scored
Size	17 MB	68 MB
Age rating	12+	4+
Developer	Clinical Leadership Solutions LTD	Benmed Technologies Limited

In-app purchases

None

Build CLS

No in-app purchases

4 purchases

Sim Vitals

Subscriptions3

Sim Vitals$0.991 Month
3 Monthly$1.993 Months
Annual Subscription$4.991 Year

One-time1

Lifetime Access$7.99

Questions

Is Build CLS free?

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

Is Sim Vitals free?

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

Do Build CLS or Sim Vitals have ads?

Neither Build CLS nor Sim Vitals shows ads.

Which is updated more often, Build CLS or Sim Vitals?

Build CLS ships an update every 19 months, and Sim Vitals every 9 months. Most recently, Build CLS was updated on September 13, 2026 and Sim Vitals on September 19, 2026.