# Idle Rune Foundry vs Primordia Lab

The clearest difference is update cadence: Primordia Lab at daily against Idle Rune Foundry's every 2 weeks. Primordia Lab also leads on ratings volume (10 vs 1) and device support. Idle Rune Foundry's advantage is monetization model (free vs free with in-app purchases). On price, rating, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Idle Rune Foundry sells 5 one-off in-app purchases and Primordia Lab sells 8 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 — 5.0 for Idle Rune Foundry against 5.0 for Primordia Lab. That said, the two scores are not equally well evidenced: Primordia Lab has 10 ratings behind it against 1, so its average is the more settled of the two.

Idle Rune Foundry ships an update every 2 weeks, Primordia Lab daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | Idle Rune Foundry | Primordia Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/idle-rune-foundry/id6762006920/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/primordia-lab/id6792397972/reviews) |
| Number of ratings | 1 | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | — | Yes |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 69 MB | 106 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 9+ |
| Developer | [Michael Eakins](https://appshunter.io/developer/1890494224) | [Unified Health Systems Consulting LLC](https://appshunter.io/developer/6792397974) |

## What reviewers say

### Idle Rune Foundry

[App page](https://appshunter.io/ios/app/idle-rune-foundry/id6762006920)

Forge mystical runes by tapping and building an army of automated workers. Upgrade your forge, enchant items, and prestige for permanent power. Earn resources even while offline.

**Highlights:** Tap-to-forge gameplay with critical strikes, Automated rune production with various worker types, Deep upgrade and enchanting systems, Prestige system for permanent progression, Offline earnings and progression, Customizable forge skins, Offline play supported

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pouch of Gems | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Chest of Gems | $3.99 | one-time |
| Legendary Hoard | $6.99 | one-time |
| Vault of Gems | $14.99 | one-time |


### Primordia Lab

[App page](https://appshunter.io/ios/app/primordia-lab/id6792397972)

Experiment with physics in a simulated world, starting with atoms and building up to complex civilizations. Discover new elements, build real circuits, and cause chaos with powerful tools. Learn about science as you play.

**Highlights:** Falling-sand physics simulation, Discovery-driven progression, Idle economy, Build real circuits, Cause absolute havoc, Learn real science

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Citations | $0.99 | one-time |
| Golden Atom Avatar | $0.99 | one-time |
| Singularity Avatar | $1.99 | one-time |
| Founder Avatar | $2.99 | one-time |
| Second Researcher | $3.99 | one-time |
| 150 Citations | $4.99 | one-time |
| Grant Funding | $4.99 | one-time |
| 550 Citations | $9.99 | one-time |


## Frequently asked questions

### Is Idle Rune Foundry free?

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

### Is Primordia Lab free?

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

### Which has better reviews, Idle Rune Foundry or Primordia Lab?

Idle Rune Foundry and Primordia Lab are both rated 5.0 out of 5 on the App Store, from 1 and 10 ratings respectively.

### Which is updated more often, Idle Rune Foundry or Primordia Lab?

Idle Rune Foundry ships an update every 2 weeks, and Primordia Lab daily. Most recently, Idle Rune Foundry was updated on October 31, 2026 and Primordia Lab on October 31, 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.*