App Store
Version 1.5.7 · 2026-10-18
Updated store information.
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 1.5.7, updated 2026-10-18.




Store screenshots supplied by the developer.
Tsukuyomi is a serene moon phase journal that connects the wisdom of lunar cycles with the rhythm of your everyday life.
Write your wishes under the new moon. Release what no longer serves under the full moon. Live in tune with the ancient wisdom of the moon.
KEY FEATURES
— Tonight's Moon
See today's moon phase, lunar age, and illumination at a glance. A poetic message accompanies each phase to inspire reflection.
— Lunar Calendar
A monthly calendar visualizing the moon's rhythm, with days until the next new and full moon clearly shown.
— Heart Journal
Capture your thoughts with a mood icon. Look back at your entries alongside the moon phase that shaped them.
— Seven-Night Moon Journal
Follow seven authored prompts and small practices—from looking up at the moon to carrying one insight forward. Nights 1 and 2 are free.…
From the developer’s store description.
For developers and the curious
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No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Updated store information.
tsukuyomiWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
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