Sall Grover vs the Gender Lobby: The Women’s App That Sparked a Legal War (#40)
25 September 2025
With Sall Grover
Global
The Australian court case Tickle v Giggle forced a judge to decide whether 'woman' in anti-discrimination law means biological sex or self-identified gender identity. Sall Grover, founder of the women-only app Giggle, fought a five-year legal battle whose central question is identical to the one now being resolved by courts and legislatures across Europe and the United Kingdom.
Sall Grover spent nearly a decade as a screenwriter in Hollywood before returning to Australia to build Giggle, a smartphone application designed exclusively for women. The platform used facial-recognition technology to screen users at registration, granting access to roommate listings, freelance work boards and a dating function for lesbians. Apple and Google approved successive builds of the app throughout 2019. The founding premise — that a verified-female user base created meaningful safety for women — was soon contested in court. In early 2020, a user named Roxy Tickle downloaded Giggle, was granted access and subsequently had that access removed. Tickle lodged a sex discrimination complaint under Australian federal law, arguing that removal from a women-only platform constituted unlawful treatment on the grounds of sex. The resulting case, formally Tickle v Giggle for Women Pty Ltd, became one of the most closely watched tests of how anti-discrimination statutes interact with the biological category of sex. A Federal Court judge ruled against Grover in 2023, awarding ten thousand dollars in damages. Grover launched an appeal that had not concluded when this episode was recorded. The legal question at the heart of the case — whether 'woman' in a discrimination statute denotes biological sex or legally recognised gender identity — is one that courts and legislators across Europe have been forced to address in parallel. In April 2025 the United Kingdom's Supreme Court handed down its judgment in For Women Scotland v Scottish Ministers, holding unanimously that 'woman' in the Equality Act 2010 means a biological female. The ruling confirmed that single-sex services operating under that Act may lawfully exclude transgender women where the exclusion is a proportionate means of achieving a legitimate aim. The Giggle dispute had been raising an almost identical question under Australian law for years before that clarification arrived in British jurisprudence. Beyond the statutory interpretation debate, the episode examines the human cost of standing at the centre of a legal controversy that carries intense social pressure. Grover describes sustained harassment and the psychological toll of prolonged litigation, themes that recur in accounts from women across Europe who have challenged gender-identity orthodoxy in professional or legal settings. The episode also canvasses arguments advanced during the Australian proceedings that extended biological language in novel directions — including claims touching on pregnancy and breastfeeding as capacities potentially applicable to male bodies — and the hosts examine how such reasoning, if endorsed by courts, would erode the evidentiary foundations on which sex-based legal protections were constructed. For researchers and policymakers monitoring European equality law, the Giggle litigation functions as a real-world stress test of what single-sex exemptions protect in practice. The UK Supreme Court ruling, the ongoing revision of guidance by the Equality and Human Rights Commission, and legislative debates in Ireland, Scotland and across Scandinavia all turn on the same definitional axis that Grover was compelled to defend from the position of a sole founder with limited resources. Her account makes plain that the financial, reputational and psychological costs of that defence fall disproportionately on individuals rather than on the institutions whose interpretation of the law they are challenging.
