SingularityApp Review 2026

Overview

SingularityApp is a GTD-focused task manager that emphasizes the connection between tasks and calendar. The idea is simple but well-executed: your tasks and calendar events coexist, so you can plan your day with full visibility of both commitments and to-dos.

The GTD workflow is competently implemented with inbox, projects, contexts, and a review process. Tasks support the standard GTD attributes: next actions, waiting for, someday/maybe, and reference. The implementation is faithful without being rigid — you can use as much or as little of GTD as you want.

Calendar integration is the differentiating feature. Unlike tools that treat calendar sync as an afterthought, SingularityApp makes the calendar a first-class citizen. You can see your tasks alongside calendar events, drag tasks to time slots, and plan your day with complete context. This is particularly useful for people whose days are dominated by meetings.

The app is available on major platforms — Windows, Mac, iOS, Android, and web — which is better coverage than many niche productivity tools. The pricing is very affordable at about $3.33/month billed annually, undercutting most competitors.

The challenges are typical of lesser-known tools. The community is small, meaning fewer resources, templates, and peer support. Integrations are very limited — you won't find Slack, Zapier, or extensive third-party connections. The interface is clean but lacks the design polish of leaders like Todoist or Things.

SingularityApp is a reasonable choice for GTD practitioners on a budget who want good calendar integration across multiple platforms. It's not trying to compete with feature-heavy tools — it does GTD with calendar views at a low price. For modern productivity with gamification, voice input, and habits, LemTask offers a different and more engaging experience.