ALDS
Health & Fitness
Free · Designed for iPad
The ALDS (Ambulatory Lung Diagnostic System) combines oscillometry, FeNO, and spirometry to enable fast and comprehensive respiratory assessment. Its cloud-based algorithms evaluate measurement data alongside patient history to support the physiological interpretation of obstructive, restrictive, and inflammatory patterns. Designed for use in primary and outpatient care, the system enables efficient, non-invasive assessments within minutes and supports clinicians in the evaluation and management of respiratory conditions.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Minor bug fixes and performance improvements.
The developer, LOTHAR MEDTEC GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 25.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
16+
- 16+
- Frequent
Medical Treatment Information
Contains
Health or Wellness Topics
- Provider
LOTHAR MEDTEC GmbH
- LOTHAR MEDTEC GmbH has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Medical Device
Yes
- LOTHAR MEDTEC GmbH indicated this app is a regulated medical device and complies with European Union law.
- The information below has not been verified by Apple.
- Manufacturer SRN
- DE-MF-000007469
- Address
- Magdalene-Schoch-Str. 5
97074 Würzburg
Germany - Phone Number
- +49 931 61938160
- Email Address
- rd@lothar-medtec.de
- Use Statement
- Intended purpose of the ALDS Medical Device Software
The ALDS medical device software is intended to integrate and process multimodal respiratory function data obtained from forced spirometry, oscillometry, measurements of fractional exhaled nitric oxide, and patient medical history. The software evaluates the measurements and presents the corresponding clinical parameters in tabular and graphical format, including indicators of measurement quality, severity grading, and bronchodilator response. By comparing the calculated parameters with established reference values, the software provides a physiological interpretation consistent with published concepts for obstructive and restrictive ventilatory impairments and airway inflammation. The device is intended to support healthcare professionals in the assessment of lung function; the ALDS software does not provide an autonomous medical diagnosis.
Intended purpose of the ALDS product family
The ambulatory lung diagnostic system product family (ALDS) is used to determine forced spirometry, oscillometry and fractional exhaled nitric oxide parameters. It uses this information together with data from patient medical history to make physiological interpretations in spontaneously breathing patients. Depending on the variant within the ALDS product family, a subset of the listed parameters is available. - Safety Information
- In general spirometry, oscillometry and the measurement of fractional concentration of exhaled nitric oxide shall be avoided
- if the patient is not spontaneously breathing
- if the patient cannot breathe through a mouthpiece with a filter
- if the patient cannot breathe on the mouthpiece for at least 60 seconds.
Performing spirometry can be physically demanding. The forced expiratory maneuver used increases intrathoracic, intraabdominal and intracranial pressures. Potential risks of spirometry and the measurement of fractional concentration of exhaled nitric oxide are primarily related to maximal pressures generated in the thorax and their impact on abdominal and thoracic organs, venous return and systemic blood pressure and expansion of the chest wall and the lungs. The physical effort required can increase myocardial stress. Caution must be used for patients with diseases that could
be adversely affected by these physiological consequences:
- increases in myocardial stress or changes in blood pressure, e.g.
- acute myocardial infarction within one week
- systemic hypotension or severe hypertension
- significant atrial/ventricular arrhythmia
- non-compensated heart failure
- uncontrolled pulmonary hypertension
- acute cor pulmonale
- clinically unstable pulmonary embolism
- medical history of syncope related to forced expiration/cough
- increased intracranial/intraocular pressure, e.g.
- cerebral aneurysm
- brain surgery within four weeks
- recent concussion with continuing symptoms
- eye surgery within one week
- increases in sinus and middle ear pressures, e.g.
- sinus surgery or middle ear surgery or infection within one week
- increases in intrathoracic and intraabdominal pressure, e.g.
- presence of pneumothorax
- thoracic surgery within four weeks
- abdominal surgery within four weeks
- late-term pregnancy
- infection control issues, e.g.
- active or suspected transmissible respiratory or systemic infection, including tuberculosis
- physical conditions predisposing a patient to transmission of infections, such as hemoptysis, significant secretions, or oral lesions or oral bleedings
Although such risks are likely to be minimal for spirometry and measurement of the fractional concentration of exhaled nitric oxide with most patients, the potential risks associated with testing should always be weighed against the benefit of obtaining information about lung function. These measurements should be discontinued if the patient experiences pain during the maneuver. Patients with potential contraindications that would prevent testing in the primary care setting may be tested in a pulmonary function laboratory where operators are more experienced and where there may be
access to emergency care if needed. Furthermore, they require the patient’s active participation, which means inability to understand directions or unwillingness to follow the directions of the operator will usually lead to submaximal test results.
Performing oscillometry or a FENO measurement is not physically demanding. Oscillometry and FENO measurements do not significantly increase intrathoracic, intraabdominal, and intracranial pressures. Caution must be used for patients with diseases that could adversely be affected by these physiological consequences:
- infection control issues, e.g.
- active or suspected transmissible respiratory or systemic infection, including tuberculosis
- physical conditions predisposing to transmission of infections, such as hemoptysis, significant secretions, or oral lesions or oral bleeding - Instructions for Use
- Visit the developer site
- Copyright
- © 2026 LOTHAR MEDTEC GmbH