# Idle Universe vs Primedor

The clearest difference is rating: Primedor at 5.0 against Idle Universe's 4.3. Primedor also leads on in-app purchases (none vs 7) and ads (none vs shown). Idle Universe's advantage is ratings volume (1.5K vs 3) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Idle Universe sells 7 one-off in-app purchases. Primedor asks for nothing beyond the download.

Primedor holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Idle Universe has 1.5K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 65% of Idle Universe's written reviews are positive against 100% of Primedor's.

Idle Universe ships an update every 3 weeks, Primedor every 3 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Idle Universe | Primedor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (1.5K ratings)](https://appshunter.io/ios/app/idle-universe/id1195110094/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/primedor/id6754699461/reviews)** |
| Number of ratings | **1.5K** | 3 |
| Positive reviews | 65.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 299 MB | 11 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Stallmann](https://appshunter.io/developer/1195110093) | [Harold Sultan](https://appshunter.io/developer/1846424336) |

## What reviewers say

### Idle Universe

[App page](https://appshunter.io/ios/app/idle-universe/id1195110094)

Tap to gather matter and create interstellar objects, from particles to galaxies. Objects automatically generate more matter, allowing for endless universe expansion. Unlock divine powers, upgrade objects, and utilize special abilities to grow your cosmic creation.

**Highlights:** Create 31 interstellar objects, Unlock 24 Divine Powers, Upgrade objects with multiple options, Obtain Dark Matter for special abilities, Gain Antimatter via prestige for permanent upgrades, Compete on leaderboards, Earn daily rewards and achievements

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 250 Dark Matter | $3.99 | one-time |
| Double Antimatter Gains | $4.99 | one-time |
| +100% Transcendence Exp | $4.99 | one-time |
| Remove All Ads | $8.99 | one-time |
| 1000 Dark Matter | $9.99 | one-time |
| 2500 Dark Matter | $24.99 | one-time |
| 10000 Dark Matter | $69.99 | one-time |

**What reviewers like**

- 👍 Organized and easy to use
- 🚀 Efficient progression system
- 💡 Unique and engaging concept
- 🎨 Good graphics and visuals

**What reviewers complain about**

- 🐛 Bugs and crashes
- 🔋 Slow progress without watching ads
- 🤖 Forced Google account login
- 🔍 Unclear game mechanics

**Reported bugs**

- Prestige button not working
- Ads not providing expected rewards
- Frequent crashes and freezes
- Incorrect offline progress tracking

**Requested features**

- Offline progress tracking
- More prestige layers and upgrades
- Better optimization for larger screens
- Improved tutorial and explanations


### Primedor

[App page](https://appshunter.io/ios/app/primedor/id6754699461)

A strategic card game where players build a mathematical empire by collecting tokens, purchasing cards with permanent bonuses, and claiming legendary mathematicians. Challenge intelligent AI opponents in games of flexible speed and track your progress.

**Highlights:** Strategic token economy, Intelligent AI opponents, 90 unique math cards, 10 mathematicians to claim, Flexible gameplay speed, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Idle Universe free?

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

### Is Primedor free?

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

### Which has better reviews, Idle Universe or Primedor?

Primedor is rated higher. Idle Universe averages 4.3 out of 5 from 1.5K ratings, while Primedor averages 5.0 from 3 ratings.

### Do Idle Universe or Primedor have ads?

Idle Universe shows ads; Primedor does not.

### Which is updated more often, Idle Universe or Primedor?

Idle Universe ships an update every 3 weeks, and Primedor every 3 days. Most recently, Idle Universe was updated on October 29, 2026 and Primedor on October 24, 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.*