# Bolt Stack vs FENER

The clearest difference is in-app purchases: FENER at none against Bolt Stack's 16. FENER also leads on ads (none vs shown) and update cadence (every 3 days vs every 8 days). Bolt Stack's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 18.6). On price there is nothing between them.

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

Bolt Stack ships an update every 8 days, FENER every 3 days. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Bolt Stack | FENER |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 365 MB | 5 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HOMA GAMES](https://appshunter.io/developer/1508492426) | [ismail alkan](https://appshunter.io/developer/1868195454) |

## 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 |


### FENER

[App page](https://appshunter.io/ios/app/fener-light-puzzle/id6801909472)

**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 FENER free?

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

### Do Bolt Stack or FENER have ads?

Bolt Stack shows ads; FENER does not.

### Which is updated more often, Bolt Stack or FENER?

Bolt Stack ships an update every 8 days, and FENER every 3 days. Most recently, Bolt Stack was updated on October 6, 2026 and FENER on October 1, 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.*