# Arcarae vs Sidera

Arcarae and Sidera both sit at 4.8 stars, but that hides the real split: 100% of Sidera's written reviews are positive against 83% of Arcarae's. Arcarae's advantage is ratings volume (204 vs 9) and iOS requirement (15.6 vs 17.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Arcarae sells 10 in-app purchases, starting at $9.99 per 7 days and Sidera sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Arcarae against 4.9 for Sidera. That said, the two scores are not equally well evidenced: Arcarae has 204 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 83% of Arcarae's written reviews are positive against 100% of Sidera's.

Arcarae ships an update every 5 days, Sidera weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | Arcarae | Sidera |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (204 ratings)](https://appshunter.io/ios/app/arcarae/id6642661163/reviews) | **[4.9 (9 ratings)](https://appshunter.io/ios/app/sidera-guidance/id6762301629/reviews)** |
| Number of ratings | **204** | 9 |
| Positive reviews | 83.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 202 MB | 81 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Arcarae, Inc.](https://appshunter.io/developer/1704227019) | [Sidera LLC](https://appshunter.io/developer/1893721198) |

## What reviewers say

### Arcarae

[App page](https://appshunter.io/ios/app/arcarae/id6642661163)

Explore your inner world through guided AI journeys. Uncover hidden patterns and gain deeper self-understanding as your personal galaxy evolves with each session. Transform reflection into intention and discover who you are becoming.

**Highlights:** Guided AI journeys, Inner pattern discovery, Personalized galaxy evolution, Three distinct exploration realms, Insight Stars and constellations, Aurae for deeper exploration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chrysalis Membership (Weekly) | $9.99 | per 7 days |
| Chrysalis Membership (Monthly) | $29.99 | per month |
| Metamorphosis Membership | $90.00 | per month |
| Crescent Arc Pass - Yearly | $350.00 | per year |
| 111 Aurae | $1.99 | one-time |
| 333 Aurae | $2.99 | one-time |
| 777 Aurae | $5.99 | one-time |
| 999 Aurae | $7.99 | one-time |
| 2222 Aurae | $16.99 | one-time |
| 8888 Aurae | $49.99 | one-time |

**What reviewers like**

- ✨ Mesmerizing and surreal experience
- 💖 Deeply comforting and safe
- 🌌 Unique and one-of-a-kind
- 💡 Thought-provoking and insightful
- 🌟 Beautifully designed and ethereal UI/UX

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 🔋 High battery consumption
- ❓ Confusing at times
- 🐌 Can be laggy
- 🗣️ Verbose responses

**Reported bugs**

- App crashes
- Consumes power too quickly
- Locked out for voicing opinions (reported in past update)
- Cannot sign up/login, error messages
- Email login not working

**Requested features**

- Improve responsiveness and optimization
- Ability to toggle response length for ADHD users
- Differentiate new insights with a different color glow
- Feedback loop for insights to improve the system
- Morning or nightly check-in functionality


### Sidera

[App page](https://appshunter.io/ios/app/sidera-guidance/id6762301629)

This lifestyle app connects you with experts for practical guidance on everyday decisions. Move from overthinking to action by defining priorities, creating action plans, and preparing for important conversations. Build better habits and track your progress in one place for personal growth.

**Highlights:** Chat with life and love advisors, Define priorities and action plans, Prepare for important conversations, Build better habits, Track sessions and progress

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Welcome Offer: Credits | $2.99 | one-time |
| Welcome Offer: Credits | $3.99 | one-time |
| Starter Offer: Credits | $7.99 | one-time |
| Basic Credits Package | $11.99 | one-time |
| Bronze Credits | $19.99 | one-time |
| Silver Credits | $49.99 | one-time |
| Gold Credits | $99.99 | one-time |
| Platinum Credits | $149.99 | one-time |
| Diamond Credits | $199.99 | one-time |
| Cosmic Credits | $249.99 | one-time |


## Frequently asked questions

### Is Arcarae free?

Arcarae is free to download, with in-app purchases available.

### Is Sidera free?

Sidera is free to download, with in-app purchases available.

### Which has better reviews, Arcarae or Sidera?

Sidera is rated higher. Arcarae averages 4.8 out of 5 from 204 ratings, while Sidera averages 4.9 from 9 ratings.

### Do Arcarae or Sidera have ads?

Neither Arcarae nor Sidera shows ads.

### Which is updated more often, Arcarae or Sidera?

Arcarae ships an update every 5 days, and Sidera weekly. Most recently, Arcarae was updated on October 25, 2026 and Sidera on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*