--- title: Niyora vs Stardust for PMS and PMDD · Niyora description: Stardust pairs your cycle with the moon and astrology. Niyora helps you through the hard PMS moment itself. Features, prices and privacy, checked. url: https://niyora.com/compare/niyora-vs-stardust/ --- [All comparisons](https://niyora.com/compare/) # Niyora vs Stardust: which helps with PMS and PMDD? Stardust pairs your cycle with moon phases and daily cards. Niyora helps you through the hard PMS moment, with ideas that name their sources. Coming soon on Android Checked on 13 October 2026 against Stardust’s own site and App Store listing. ## The short answer - 01 Stardust is a period tracker that pairs your cycle with the moon, astrology and daily cards. - 02 Niyora is a PMS and PMDD support app. When a hard moment hits, Moon helps you calm down, see it another way and decide what to say. - 03 Niyora’s ideas name where they come from, such as CBT or self-compassion research. It has no account. Feature by feature ## How Niyora and Stardust compare Every Stardust entry is what Stardust App LLC says on its own site, help pages or App Store listing. Where it says nothing, the table says so. | Feature | Niyora | Stardust | | --- | --- | --- | | What it is | A PMS and PMDD support app for the hard moment, with a cycle calendar. | A period tracker that pairs your cycle with the moon and astrology. | | Built for | The days before your period, when a feeling hits and you have to decide what to do next. | Tracking your cycle with moon phases, daily cards and sharing with friends. | | Help in the hard moment When it’s happening, not after | Built for it Tell Moon what happened. Swipe through other ways to see it, each with its source, calming activities and facts about your body, then decide what to say, with drafts. | Not offered Daily cards based on the moon, your sun and rising sign, and mood predictions. Its listing doesn’t describe a tool for a specific situation. | | PMS and PMDD | A predicted PMS window, a library of common PMS and PMDD scenarios, your saved moments mapped by cycle day, and a cycle report PDF for a doctor or therapist. | Says it can spot PMS patterns before they start. Its App Store listing doesn’t mention PMDD. | | Cycle prediction | Predicts your period and PMS window from your own logged cycles or your Apple Health period history. | Predicts your next period, fertile window, ovulation and moods. | | AI | Moon runs on a leading AI model under enterprise terms. Names and places are replaced on your phone first, and your text isn’t used to train the models. | Its listing says it blends science, ancient wisdom, astronomy and AI. It doesn’t say what the AI does. | | Account | None. No sign-up, email or password. | Yes. Its privacy policy lists log-in credentials, email and phone number among what it collects. | | Your data | Entries are encrypted on your phone. Its App Store label lists no data used to track you and none linked to you. | Health data is stored on Stardust’s servers against a random account ID. Its App Store label lists Purchases, Identifiers and Usage Data as used to track you. | | Price | Free to start. Premium is $8.99 a month or $29.99 a year. Lifetime is $79.99 until 30 November 2026. | Free, with All Access. The US App Store lists a monthly plan at $6.99 and yearly plans from $24.99 to $39.99. | | Free version | Moon moments each month, the cycle calendar and PMS window, and calming activities. | Free to download. All Access is the paid tier, and the listing doesn’t break down what it adds. | | Platforms | iPhone today. Android coming soon. | iPhone and Android. | Sources for Stardust, checked 13 October 2026: Stardust’s App Store listing (US) ; Stardust’s homepage ; Stardust’s privacy policy . Sources for Niyora: its [privacy policy](https://niyora.com/privacy/) and [App Store listing](https://apps.apple.com/app/niyora-pms-emotions/id6764561688). Who each is for ## Who Niyora and Stardust are for Niyora is for you if You want help that’s grounded in tested ideas when PMS turns a normal day into a fight or a spiral, and you want to know where each idea comes from. Stardust is for you if You like to read your cycle alongside moon phases and astrology, and to share it with friends. The difference ## What Niyora does that Stardust doesn’t Measured against what Stardust describes on its own pages on 13 October 2026. - ### Help with the situation you’re in Tell Moon what happened in a sentence. It answers that moment, with other ways to see it, a way to calm down and facts about your body. - ### Every idea shows its source Each perspective names where it comes from: CBT, Stoic philosophy, Morita therapy, self-compassion research and others. - ### Words for what to say next Moon drafts the message with you. Make it softer, shorter, or hold it until tomorrow. - ### Nothing to register There’s no account. Entries are encrypted on your phone, and names and places are removed on the phone before the AI sees your text. Pricing ## What Niyora and Stardust cost Niyora Free to start Monthly $8.99 Yearly $29.99 Lifetime $79.99 until 30 November 2026 Free: Moon moments each month, the cycle calendar and PMS window, and calming activities. Stardust Free, with All Access. The US App Store lists a monthly plan at $6.99 and yearly plans from $24.99 to $39.99. Free version: Free to download. All Access is the paid tier, and the listing doesn’t break down what it adds. Source: US App Store, read 13 October 2026. Prices can differ by country and change with offers. Niyora prices are in US dollars on the US App Store. Premium adds unlimited Moon moments, your patterns, the cycle report and asking Moon about your past moments. Privacy ## What happens to what you log What each app declares in its App Store privacy label and its own policy. Each line is the company’s own declaration. Niyora Account None. No email, password or sign-in. Where entries live Encrypted on your phone, with a key that never leaves it. Before the AI sees it Names and places are replaced on your phone. Your text isn’t used to train the AI. Used to track you (App Store label) None declared Linked to your identity None declared Collected, not linked to you Health, Purchase History, Photos or Videos, Other User Content, Device ID Stardust Account Yes. Its privacy policy lists log-in credentials, email and phone number among what it collects. Where data lives Company servers, health data stored against a random account ID Used to track you (App Store label) Purchases, Identifiers, Usage Data Linked to your identity None declared Sells your data Does not say, per its privacy policy App Store label read 13 October 2026. Policy details from our app privacy table, checked 19 August 2026. [What nine cycle apps declare about your data](https://niyora.com/compare/privacy/) FAQ ## Questions about Niyora and Stardust Does Stardust help with PMS? + Stardust’s App Store listing says it can spot PMS patterns before they start, and it predicts your period, fertile window and moods. It doesn’t describe a tool for a specific hard moment. Niyora predicts your PMS window and, when a moment hits, Moon helps you calm down and decide what to say. Is Niyora an astrology app? + No. Niyora is a PMS and PMDD support app. Its perspectives come from sources such as CBT, Stoic philosophy, Morita therapy and self-compassion research, and every one names its source. The moon in Niyora is the name of its AI, Moon, and the look of the app. Does Stardust need an account? + Stardust’s privacy policy lists log-in credentials, email address and phone number among the data it collects, and says health data is stored against a random account ID. Niyora has no account at all: no email, no phone number and no sign-in. How much does Stardust cost compared with Niyora? + Stardust is free, with All Access listed on the US App Store at $6.99 a month or $24.99 to $39.99 a year. Niyora is free to start, with Premium at $8.99 a month or $29.99 a year, and a $79.99 lifetime option until 30 November 2026. ## How this page was checked Checked on 13 October 2026. Every Stardust fact above comes from these pages, read on that date. We name them here and don’t link to them. - Stardust’s App Store listing (US) - Stardust’s homepage - Stardust’s privacy policy Spotted something out of date? [neha@niyora.com](mailto:neha@niyora.com?subject=Correction%3A%20Niyora%20vs%20Stardust) ## More comparisons - [Niyora vs Flo](https://niyora.com/compare/niyora-vs-flo/) - [Niyora vs Clue](https://niyora.com/compare/niyora-vs-clue/) - [Niyora vs Bearable](https://niyora.com/compare/niyora-vs-bearable/) - [Niyora vs Apple Cycle Tracking](https://niyora.com/compare/niyora-vs-apple-cycle-tracking/) - [Niyora vs Moody Month](https://niyora.com/compare/niyora-vs-moody-month/) - [Niyora vs Cara Care](https://niyora.com/compare/niyora-vs-cara-care/) - [Niyora vs an AI companion](https://niyora.com/compare/niyora-vs-ai-companion/) - [Moon vs other AI](https://niyora.com/compare/moon-ai-vs-other-ai/) - [Alternatives to mood trackers](https://niyora.com/compare/alternatives-to-mood-trackers/) - [What apps do with your data](https://niyora.com/compare/privacy/)