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.
LS Teacher
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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.
One Heart App
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | LS Teacher | One Heart App |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly โ better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 27 MB | 40 MB |
| Age rating | 4+ | 12+ |
| Developer | Dunamis LLC | One Heart Health |
In-app purchases
LS Teacher
No in-app purchases
One Heart App
No in-app purchases
Questions
Is LS Teacher free?
Is One Heart App free?
Do LS Teacher or One Heart App have ads?
Which is updated more often, LS Teacher or One Heart App?
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