This paper presents an analysis tool for comparative and collaborative evaluation of mobile artefact usage. Three scenarios were envisioned for the comparative dimension covering both multiple user performance analysis and single-user evolution analysis through three different settings: result browsing, interaction replay and online monitoring. The collaborative dimension is detailed according to two settings: existence of a public display and the use of shared spaces to exchange information between analysts. A couple of analysis sessions were performed by end-users under group psychotherapy and educational domains to assess how the tool fits in such scenarios.