Holter Log
Manually save symptom and activity times, add context later and prepare a PDF diary during an ambulatory ECG monitoring period.
Keeping a dated record of patient-entered events during a monitoring period
Holter Log offers a patient-entered diary rather than a connection to a Holter monitor. Its iPhone and Apple Watch workflow separates capturing a time from adding details, then brings entries together for a PDF. It does not read or analyze ECG signals, detect conditions or provide a diagnosis.
Keep in mind: A manual diary does not read monitor data, analyze ECG, detect arrhythmias or replace the clinic’s instructions.
Inside the app
Official product images
What you can do
- Capture an event time on iPhone or the Apple Watch companion and add details later
- Organize symptoms, activities and sleep in an editable study timeline
- Generate, preview and share a PDF diary with the care team
Good for
- Keeping a dated record of patient-entered events during a monitoring period
Consider alternatives for
- Reading a physical monitor or interpreting ECG results
A small workflow to compare
Follow the diary format requested by the clinic. In the documented workflow, capture an event time first, then add the symptom or activity details and correct an entry if needed.
Review the timeline and preview the PDF before sharing it with the intended care team. Neither the Watch flow nor the PDF has been exercised by our editors.
Release and evidence
US App Store metadata lists version 2.0.1(99), requiring iOS/iPadOS 17.0 or later. The Apple Watch companion requires watchOS 10 or later; the iPhone remains the main record. Official material checked November 15, 2026. The gallery contains publisher product imagery. No installation, offered access redemption or purchase was used for this coverage.
Limitations & considerations
- A manual diary does not read monitor data, analyze ECG, detect arrhythmias or replace the clinic’s instructions.
- The store-linked Google Sites privacy page returned HTTP 404. Its policy text could not be verified.
- Quick entry, Watch synchronization and the exported PDF were not tested. The gallery is publisher iPhone imagery, not our device captures.
- The description claims 49 in-app languages, while checked store metadata lists 47. Language coverage was not tested.
Privacy & permissions
Entries may contain sensitive health and activity information. Review the exported diary and its recipient before sharing. The store-linked privacy policy returned HTTP 404; storage, synchronization and network behavior were not independently audited.
Use it for
Sources & review notes Updated Nov 15, 2026
Reviewed by iApp4Me Editorial Team. Recommendations use the linked documentation and attributed accounts; device observations are identified separately.
- Holter Log · App Store
Official source checked November 15, 2026. Publisher claims are distinguished from installed-device observation.
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