# Idle Atom inc. vs Terrum DeepDrill

Idle Atom inc. and Terrum DeepDrill are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Idle Atom inc. sells 23 one-off in-app purchases and Terrum DeepDrill sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Idle Atom inc. | Terrum DeepDrill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (359 ratings)](https://appshunter.io/ios/app/idle-atom-inc-element-merge/id6676996063/reviews)** | — |
| Number of ratings | **359** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 263 MB | 307 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Arsen Asoian](https://appshunter.io/developer/1844549353) | [KUBRA BASTEM](https://appshunter.io/developer/6801094977) |

## What reviewers say

### Idle Atom inc.

[App page](https://appshunter.io/ios/app/idle-atom-inc-element-merge/id6676996063)

Build an energy mining empire by merging atoms and advancing through the periodic table. Upgrade your laboratory, unlock new technologies, and manage a team of scientists to discover antimatter and operate advanced scientific equipment. This offline idle simulator offers strategic development and incremental growth.

**Highlights:** Atom merging and element progression, Offline gameplay, Idle progression and automation, Laboratory and technology upgrades, Scientific team management, Incremental growth simulation, Clicker mechanics for faster generation

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

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack 1 (Antimater) | $0.99 | one-time |
| + 10 Quants | $0.99 | one-time |
| Removing banner ads | $0.99 | one-time |
| One coffee please | $0.99 | one-time |
| Student starter pack | $0.99 | one-time |
| + 25 Quants | $0.99 | one-time |
| Pack 2 (Antimater) | $1.99 | one-time |
| One burger please | $1.99 | one-time |
| Starter pack - Big Version | $1.99 | one-time |
| + 50 quants | $2.99 | one-time |
| Quantbox small | $3.99 | one-time |
| 100 + 10 quants | $3.99 | one-time |
| Pack 3 (Antimater) | $4.99 | one-time |
| 250 + 25 quants | $5.99 | one-time |
| Raise the programmer's level | $5.99 | one-time |
| Pump up the designer | $7.99 | one-time |
| 500 + 50 quants | $8.99 | one-time |
| Quantbox medium | $9.99 | one-time |
| Remove All Ads | $9.99 | one-time |
| Pack 4 (Antimater) | $19.99 | one-time |
| Quant 1500 + 500 | $19.99 | one-time |
| Pack 5 (Antimater) | $59.99 | one-time |
| Quants 5500 + 1500 | $59.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive
- 🔍 Informative and educational
- 🕹️ Engaging gameplay
- 🕰️ Good time killer

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🔍 Lack of explanations and tutorials
- ⏳ Slow offline progression
- 💰 Aggressive monetization

**Reported bugs**

- Atom merging issues
- Reward ads not working
- Restore purchases not working

**Requested features**

- Offline event progress
- In-game wiki/guide
- Cross-platform save sync


### Terrum DeepDrill

[App page](https://appshunter.io/ios/app/terrum-deepdrill/id6801094975)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Terra Credits | $0.99 | one-time |
| Terrum Premium | $4.99 | one-time |
| 100 Terra Credits | $4.99 | one-time |
| 500 Terra Credits | $19.99 | one-time |


## Frequently asked questions

### Is Idle Atom inc. free?

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

### Is Terrum DeepDrill free?

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

### Do Idle Atom inc. or Terrum DeepDrill have ads?

Both Idle Atom inc. and Terrum DeepDrill show ads.

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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.*