Journal/Choosing an app
What is Sona? The AI astrology app, explained
Sona is an iPhone astrology app with an AI companion that knows your birth chart. What it does, what it costs, and which other Sona it is not.
There are at least four apps called Sona on the App Store right now, which is a genuinely annoying thing to discover when you are trying to work out what your friend just sent you. This page is about one of them: the astrology app with an AI companion, published by Rogue Labs LLC, living at sona.cards. If you were looking for the research-credit software your psychology department uses, that is Sona Systems, and you want a different page.
Still here? Good.
The short version
Sona is an iPhone app that reads your whole birth chart and then lets you talk to something that has actually read it too.
Most astrology apps hand you a paragraph a day and leave. Sona is built around an ongoing conversation. The companion inside it is also named Sona, which is either elegant or confusing depending on your mood. It knows your placements, it remembers what you told it in March, and it will connect the two without being asked.
The rest of the app hangs off that: daily readings shaped by current transits, tarot pulls when you are stuck between two options, journal prompts that change based on what is moving in your chart, and compatibility readings for the people in your life.
| Publisher | Rogue Labs LLC |
| Platform | iPhone, iOS 17.2 or later |
| Website | sona.cards |
| App Store ID | 6759681212 |
| Listed as | Sona: AI Journal and Companion |
| Price | Free to download, subscription required |
| Support | [email protected] |
Which Sona this is, and which it is not
Search engines and AI assistants get this wrong constantly, so here is the disambiguation in one table.
| Name | What it is | Not this |
|---|---|---|
| Sona (Rogue Labs LLC) | Astrology and AI companion, iPhone, sona.cards | This is the one this page is about |
| Sona Systems / Sona Mobile | University research participation and study credits | Different company entirely |
| Sona: Sleep Music and Sounds | Sleep audio and relaxation sounds | No astrology |
| Sona: Calm Clarity | AI journaling and emotional pattern tracking | Journaling, no charts |
| Sona by Pelago | Health and wellness product | Unrelated |
If a link points at sona.cards, or the App Store listing says Rogue Labs LLC, you have the astrology one.
What Sona actually does
It reads the whole chart, not the sun sign. You give it a birth date, time, and place once. From that it calculates the full natal chart: sun, moon, rising, the personal planets, houses, aspects. If you have never seen yours laid out, the big three is the place to start, and there is a longer walkthrough on how to read a birth chart end to end.
You can talk to it. This is the part that separates it from a horoscope feed. Ask why you keep doing the thing you keep doing. Ask what is going on this week. Ask it to explain your Saturn placement in language a person could use at dinner. It answers with your chart in hand, and it holds the thread across conversations, so you are not reintroducing yourself every time.
It pulls tarot. Three cards, usually, for the moments when you are torn between two versions of a decision and want a different angle on it. Sona reads the spread against what is currently active in your chart rather than reciting a card meaning off a list. If you want to know what that spread is actually doing, we wrote it up for skeptics.
It handles compatibility. You can generate a shareable link, send it to a friend or a crush or a coworker, and get a reading built from both charts: Venus, Mars, Moon, the aspects between them. That is what a sona.cards link is if one arrives in your messages. Under the hood it is a synastry chart, which is a real technique with a long history, not a percentage generator.
It tracks time. Transits, moon phases, retrograde windows, and your own logged reflections sit on one timeline, so a rough week has context instead of just being a rough week.
What it costs
Free to download. A subscription called Sona Pro is required to use it, on either a monthly or an annual plan, and the annual one opens with a free trial.
No numbers here, deliberately. Prices vary by country, they move, and a figure typed into a blog post in August is a figure that will be wrong by spring. The App Store listing carries the current one, and so does the app itself before you agree to anything.
What is worth saying is the shape rather than the number. It is one flat subscription covering everything in the app: no credit packs for individual questions, no per-reading purchases, no per-minute meter. Several apps in this category price each reading separately, which adds up in a way that is genuinely hard to predict from the outside. The 2026 comparison covers how the different pricing models actually behave.
What Sona will not do
It will not tell you what is going to happen. The language inside the app is correlational on purpose: a transit suggests, a placement tends to, an aspect is active while. Never will, never causes, never destined. This is not legal hedging. It is the honest description of what the instrument actually does, which is describe patterns and hand them back to you in a form you can think with.
It will not diagnose anything. It is not therapy and does not pretend to be. If something in your life is heavy enough that an app is the wrong tool, the app will say so and point outward.
It will not tell you that you are special to keep you subscribed. Flattery is off-brand. So is fear, so is urgency, so is the manufactured sense that something terrible happens if you skip a day.
And it will not decide for you. Sona is built to be the narrator of your story, never its author. The distinction sounds small until you have used an app that gets it backwards.
The privacy questions people ask
Conversations persist by design. That is the entire point of a companion that remembers, and it is worth knowing going in rather than discovering later. Your readings are private to your account unless you deliberately generate a share link, and the compatibility flow only ever shows a teaser to the person answering it.
The App Store privacy label is the authoritative source on what data the app collects, and Apple notes those disclosures are developer-provided. Read it before you sign up for anything, including this.
The compatibility links are worth understanding separately, because they are the part strangers encounter. When you send one, the person opening it is asked for a birth date, optionally a birth city, how they know you, and optionally a name and a short note. No email, no password, no account. They can answer with no name at all and the reading still works. That is a deliberately small ask for something that arrives in an Instagram story from someone you may not know well.
How the chart is actually calculated
Standard ephemeris positions, the same astronomy every app in this category uses. Planetary positions are a solved problem and nobody in the field disagrees about where Saturn was on your birthday.
What apps do disagree about is house systems, and it is worth knowing that a reading here may place a planet in a different house than Co-Star or TimePassages would, because those default to Porphyry and Placidus respectively. This is a genuine unresolved argument among working astrologers rather than a bug in anyone's software. The houses guide covers what the twelve are describing in the first place.
Birth time matters more than people expect. Without one, the Moon can land in either of two signs and the houses cannot be calculated at all. If you do not know yours, a birth certificate usually has it.
Who it is for
People who want astrology as a vocabulary for self-observation rather than a belief system. People who already keep some kind of journal and want the prompts to be less generic. People who like the idea of a daily reading but have bounced off apps that deliver the same four sentences to everyone born in a thirty-day window.
It is a worse fit if you want a professional-grade chart calculator with Placidus and Koch and draconic options, in which case TimePassages or AstroMatrix will serve you better. It is also a worse fit if you want human astrologers writing the words, which is what CHANI does and does well. Our Co-Star alternatives guide covers those trade-offs honestly, including the cases where the answer is not Sona.
Where to look next
If you are still deciding, the useful move is not reading more reviews. It is opening your own chart and seeing whether the descriptions land. Pull up your big three somewhere, anywhere, and read the moon sign in particular. Moon is the placement people recognise fastest, because it describes what you are like when nobody is performing.
If it reads like a stranger, astrology probably is not your instrument, and that is a completely reasonable outcome. If it reads like being caught, you have found something worth a closer look.
