Comparison

LS Teacher vs One Heart App

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

Head to head
About

LS Teacher

Features
Read full description

The LS Teacher app allows the teacher of a class to view the attendance of the children as they enter the school premises. It also allows the view the location of the school bus and allows them to receive notifications.

About

One Heart App

Features
Read full description

The One Heart App is a congenital heart disease (CHD) educational screening solution to reach the 90% of children in the world who do not have access to quality cardiac care. The One Heart App enables healthcare workers to reach remote and underserved populations and provide CHD screening using a digital stethoscope and a mobile device. The One Heart App allows users to create an account, add patients, record heart sounds, assign patients to an expert user, complete consultation of assigned patients, and review consultation results. There are three primary users for the One Heart App including general users, nurses, and pediatric cardiologists (expert users). Please Note: the demo version of this application is available for anyone to download, however, the use of the machine learning algorithms integrated in version 1.2 are restricted to institutional users who have ethical clearance and are using the One Heart App for clinical investigative purposes only. If you are interested in using the One Heart App and integrated machine-learning algorithms for clinical investigation or wish to join the Digital Heart Sounds Study program, please contact us at Contact@onehearthealth.org.

Screenshots

LS Teacher3 screens
One Heart App4 screens

Verdict

The call

The clearest difference is update cadence: LS Teacher at monthly against One Heart App's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

LS Teacher ships an update monthly, One Heart App every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard1 real difference ยท 5 level
LS Teacher versus One Heart App: the parameters behind the verdict, then further details
ParameterLS TeacherOne Heart App
PriceFreeFree
Update frequencyMonthly โ€” betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 โ€” better
Further details โ€” not scored
Size27 MB40 MB
Age rating4+12+
DeveloperDunamis LLCOne Heart Health

In-app purchases

None

LS Teacher

No in-app purchases

None

One Heart App

No in-app purchases

Questions

Is LS Teacher free?
LS Teacher is free to download, with no in-app purchases.
Is One Heart App free?
One Heart App is free to download, with no in-app purchases.
Do LS Teacher or One Heart App have ads?
Neither LS Teacher nor One Heart App shows ads.
Which is updated more often, LS Teacher or One Heart App?
LS Teacher ships an update monthly, and One Heart App every 3 months. Most recently, LS Teacher was updated on October 26, 2026 and One Heart App on October 25, 2026.

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