# Cosmic vs Dehkhoda

The clearest difference is ratings volume: Cosmic at 636 against Dehkhoda's 10. Cosmic also leads on iOS requirement (15.0 vs 18). Dehkhoda's advantage is update cadence (every 6 weeks vs every 6 months) and review sentiment (100% vs 87%). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Cosmic sells 6 in-app purchases, starting at $0.99 per month and Dehkhoda sells 2 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 Cosmic against 4.7 for Dehkhoda. That said, the two scores are not equally well evidenced: Cosmic has 636 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 87% of Cosmic's written reviews are positive against 100% of Dehkhoda's.

Cosmic ships an update every 6 months, Dehkhoda every 6 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Cosmic | Dehkhoda |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (636 ratings)](https://appshunter.io/ios/app/cosmic-watch/id971231853/reviews)** | [4.7 (10 ratings)](https://appshunter.io/ios/app/dehkhoda/id1259936593/reviews) |
| Number of ratings | **636** | 10 |
| Positive reviews | 86.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 194 MB | 332 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Celestial Dynamics AG](https://appshunter.io/developer/997250789) | [Maysoft Inc.](https://appshunter.io/developer/1008067211) |

## What reviewers say

### Cosmic

[App page](https://appshunter.io/ios/app/cosmic-watch/id971231853)

Explore the cosmos with this app that offers interactive tools for celestial navigation and astronomical observation. Visualize the sky, Earth, and solar system from multiple perspectives, and discover constellations, planets, and events in augmented reality. It's a blend of ancient wisdom and modern technology for a deeper connection to the universe.

**Highlights:** Multiple celestial perspectives (sky, Earth, solar system), Augmented reality sky exploration, Interactive astronomical and world clocks, Visualized natal charts (Western, Vedic, Sidereal), Day/night cycles on Earth globe, Celestial navigation guides, Notifications for astronomical events

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | per month |
| Monthly | $2.99 | per month |
| Yearly Plan | $4.99 | per year |
| Yearly | $24.99 | per year |
| Tools Pack | $2.99 | one-time |
| Cosmic Pro | $69.99 | one-time |

**What reviewers like**

- 🌟 Visually stunning and mesmerizing
- 🔍 Excellent for learning about the solar system and celestial sphere
- 🕰️ Useful for tracking planetary movements and positions
- 🎨 Beautiful and intuitive interface
- 🧠 Highly educational and informative

**What reviewers complain about**

- 🔧 Occasional bugs and glitches
- 📍 Inaccurate location detection
- 🔍 Overwhelming amount of information for beginners
- ⚙️ Difficulty in customizing and managing settings
- 🔍 Lack of clear tutorials and user guides

**Reported bugs**

- Date and time not accurately reflected in the solar system view
- Inconsistent behavior when switching between different modes and settings
- Difficulty in maintaining user preferences across sessions

**Requested features**

- Add an alarm feature to wake up to different celestial views
- Implement support for Apple Watch and other wearables
- Provide more options to customize the display and information layers
- Include a night mode or dimmer setting for better visibility in low light
- Integrate with other astronomy apps and tools for a more comprehensive experience


### Dehkhoda

[App page](https://appshunter.io/ios/app/dehkhoda/id1259936593)

Access a comprehensive Persian lexicon with over 350,000 entries. Features powerful search modes, offline functionality, and integrated dictionaries for enriched context. Ideal for students, scholars, and language enthusiasts.

**Highlights:** 350,000+ Persian dictionary entries, 6 powerful search modes, Offline functionality, Integrated Steingass and Hayyim dictionaries, Full transcription for entries, Optimized for iPhone Duo and multi-column browsing

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 14-Day Trial | Free | one-time |
| Lifetime Unlock | $5.99 | one-time |


## Frequently asked questions

### Is Cosmic free?

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

### Is Dehkhoda free?

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

### Which has better reviews, Cosmic or Dehkhoda?

Cosmic is rated higher. Cosmic averages 4.8 out of 5 from 636 ratings, while Dehkhoda averages 4.7 from 10 ratings.

### Do Cosmic or Dehkhoda have ads?

Neither Cosmic nor Dehkhoda shows ads.

### Which is updated more often, Cosmic or Dehkhoda?

Cosmic ships an update every 6 months, and Dehkhoda every 6 weeks. Most recently, Cosmic was updated on November 1, 2026 and Dehkhoda on November 6, 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.*