# Constella vs Arkham Tech

The clearest difference is in-app purchases: Arkham Tech at none against Constella's 6. Arkham Tech also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 88%). Constella's advantage is ratings volume (10 vs 3) and iOS requirement (16.4 vs 18.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Constella sells 6 in-app purchases, starting at $7.99 per month. Arkham Tech asks for nothing beyond the download.

Arkham Tech holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 10 and 3 respectively. Written reviews point the same way: 88% of Constella's written reviews are positive against 100% of Arkham Tech's.

Constella ships an update every 10 days, Arkham Tech weekly. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Constella | Arkham Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (10 ratings)](https://appshunter.io/ios/app/constella-your-digital-brain/id6670701631/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/arkham-tech/id6757441519/reviews)** |
| Number of ratings | **10** | 3 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Freemium | **Free** |
| Size | 89 MB | 69 MB |
| Requires iOS | **16.4** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Nora Studios](https://appshunter.io/developer/1697592179) | [Arkham Technologies](https://appshunter.io/developer/1866970712) |

## What reviewers say

### Constella

[App page](https://appshunter.io/ios/app/constella-your-digital-brain/id6670701631)

Capture thoughts, synthesize ideas, and automate workflows in one place. This AI-powered tool connects notes, emails, and tasks to surface insights and allows for instant semantic search. It adapts to various thinking styles, making it ideal for professionals and creatives.

**Highlights:** Instant thought capture with text and images, AI synthesis across notes, emails, and apps, Semantic instant search, Smart automations and task delegation, Sync across devices, Integrates with Notion, Google Drive

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base | $7.99 | per month |
| Ultra | $19.99 | per month |
| Base Yearly | $71.99 | per year |
| Ultra Yearly | $179.99 | per year |
| Stella Call Credits - Small | $2.99 | one-time |
| Stella Call Credits - Big | $5.99 | one-time |


### Arkham Tech

[App page](https://appshunter.io/ios/app/arkham-tech/id6757441519)

This app provides mobile access to a comprehensive data and AI platform. Monitor resources, query data with AI, and receive proactive alerts to manage operations from anywhere. It ensures you have trusted data for critical decision-making.

**Highlights:** Real-time resource monitoring, AI-powered data querying, Proactive operational alerts, Mobile access to prompt library, Unified data management, 24/7 operational access

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

**In-app purchases:** none


## Frequently asked questions

### Is Constella free?

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

### Is Arkham Tech free?

Arkham Tech is free to download, with no in-app purchases.

### Which has better reviews, Constella or Arkham Tech?

Arkham Tech is rated higher. Constella averages 4.8 out of 5 from 10 ratings, while Arkham Tech averages 5.0 from 3 ratings.

### Do Constella or Arkham Tech have ads?

Neither Constella nor Arkham Tech shows ads.

### Which is updated more often, Constella or Arkham Tech?

Constella ships an update every 10 days, and Arkham Tech weekly. Most recently, Constella was updated on October 8, 2026 and Arkham Tech on October 5, 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.*