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The configured source value 7 is provenance only and must never be described as the number of platforms studied.","The finalrankingtable is the sole authority for rank, platform mentions, platform share, average rank, and best rank. Ignore any conflicting value embedded in a entity evidence bundle.","The Consensus Ranking table must contain exactly one row per finalrankingtable entity, in that order, using that exact entityname. Never split one ranked entity into two product, model, SKU, or product-line rows, and never add another ranking row for a brand already listed. Put recommended products or plans inside that entity's ranked section.","Platform mentions count only ranking-discovery mentions. Do not substitute the number of platforms that later completed a fit assessment.","Citation IDs inside each entity bundle are local to that entity. Consolidate sources by URL using the supplied source catalog.","The URLs were collected from platform responses and were not independently validated by either writer stage.","Each fitreviewurlorplaceholder is the final site-relative CMS path for that entity's review. Link the entity name to that exact path exactly once in its ranked prose section, outside tables and headings. Never replace it with a run ID, report ID, UUID, or local output path.","Use the exact entity-namespaced citation IDs from the source catalog (e.g. e1:); never transfer a citation between entities."],"methodology":{"fit_rating_contract":["strong","good","mixed","weak","uncertain"],"included_valid_platform_count":7,"maximum_finalists":10,"minimum_mentions":2,"name":"Aging in Place Index cross-platform AI consensus analysis","platforms_included":["anthropic","deepseek","google","grok","kimi","openai","perplexity"],"platforms_queried":["openai","anthropic","deepseek","grok","perplexity","kimi","google"],"stages":["ranking_discovery","fit_assessment","normalization","editorial_synthesis"],"version":"alias-table-1"},"provenance":{"generated_at":"2026-09-27 06:23:38.643055+00","research_date":"2026-09-26","source_snapshot_sha256":"54f7fa4d5e4d7795c7a959f68bf1e8b9c84e3ac5fee4f774e191fe401bdf213a","verification_scope":"public_verification"},"ranking":{"candidates_evaluated":16,"qualified_finalists":7,"ranking_unit":"System bundle and service provider"},"schema_version":4,"summary":"Bay Alarm Medical leads the September 2026 consensus ranking for Shared Household & Two-User Protection, followed by LifeFone and Medical Guardian. The current study includes 7 valid AI-platform responses and 7 qualifying entities. Compared with August 2026, the leader did not change. The current list added ADT Health Medical Alert Plus and Life Alert Classic System and removed Alert1, One Call Alert, ADT Health, and GetSafe. This is an immediately preceding-month comparison. Rank movement measures changes in this collection of standardized AI-platform responses. It is not product testing,…","target_buyer":"Older couples living in the same home who require dual emergency monitoring under a shared account","topic":{"base_category":"Medical alert systems","category_criteria":["Second-pendant discounting","dual-profile monitoring","base station range","individual fall-detection add-ons","overall package value"],"geography":"United States","slug":"best-medical-alert-systems-for-couples","title":"Best Medical Alert Systems for Couples","use_case":"Shared Household & Two-User Protection"}}