# Bolt Stack vs Dr. Hole

The clearest difference is in-app purchases: Dr. Hole at none against Bolt Stack's 16. Bolt Stack's advantage is update cadence (every 8 days vs every 3 weeks) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Bolt Stack sells 16 one-off in-app purchases. Dr. Hole asks for nothing beyond the download.

Bolt Stack ships an update every 8 days, Dr. Hole every 3 weeks. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Bolt Stack | Dr. Hole |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (65 ratings)](https://appshunter.io/ios/app/bolt-stack/id6740620440/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 365 MB | 272 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HOMA GAMES](https://appshunter.io/developer/1508492426) | [SUNSIN YAZILIM ANONIM SIRKETI](https://appshunter.io/developer/6785862559) |

## What reviewers say

### Bolt Stack

[App page](https://appshunter.io/ios/app/bolt-stack/id6740620440)

Engage your mind with a challenging puzzle game where you must sort nuts correctly to advance through increasingly difficult levels. This brainy experience offers a fun way to test your skills and enhance your cognitive abilities.

**Highlights:** Nut sorting gameplay, Progressive level difficulty, Brain-challenging puzzles, Skill testing, Mind enhancement

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Out of Lives | $0.99 | one-time |
| Good Deal | $1.99 | one-time |
| Some Coins | $1.99 | one-time |
| Life Rush | $3.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Hard Level Fail Offer | $5.99 | one-time |
| Fail Offer | $5.99 | one-time |
| No-Ads | $6.99 | one-time |
| Out of Lives | $6.99 | one-time |
| Good Deal | $7.99 | one-time |
| Pile of Coins | $7.99 | one-time |
| Life Rush | $9.99 | one-time |
| No-Ads Bundle | $11.99 | one-time |
| Heap of coins | $14.99 | one-time |
| Bag of Coins | $29.99 | one-time |
| Chest of Coins | $99.99 | one-time |


### Dr. Hole

[App page](https://appshunter.io/ios/app/dr-hole-world-tour/id6785862557)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Stack free?

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

### Is Dr. Hole free?

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

### Do Bolt Stack or Dr. Hole have ads?

Both Bolt Stack and Dr. Hole show ads.

### Which is updated more often, Bolt Stack or Dr. Hole?

Bolt Stack ships an update every 8 days, and Dr. Hole every 3 weeks. Most recently, Bolt Stack was updated on October 6, 2026 and Dr. Hole on October 17, 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.*