# SPECTRA vs Brainstorming Master

The clearest difference is in-app purchases: Brainstorming Master at none against SPECTRA's 1. Brainstorming Master also leads on update cadence (weekly vs every 5 weeks) and iOS requirement (15.0 vs 18.0). SPECTRA's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. SPECTRA sells 1 one-off in-app purchase. Brainstorming Master asks for nothing beyond the download.

SPECTRA ships an update every 5 weeks, Brainstorming Master weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | SPECTRA | Brainstorming Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (121 ratings)](https://appshunter.io/ios/app/brainstorming-master/id6773263966/reviews)** |
| Number of ratings | — | **121** |
| Positive reviews | — | 9.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | — | Ad-supported |
| Size | 68 MB | 371 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Hergert](https://appshunter.io/developer/1861706247) | [Guangzhou Duoyi Trading Co., Ltd](https://appshunter.io/developer/1620123861) |

## What reviewers say

### SPECTRA

[App page](https://appshunter.io/ios/app/spectra-spot-the-difference/id6757806584)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $1.99 | one-time |


### Brainstorming Master

[App page](https://appshunter.io/ios/app/brainstorming-master/id6773263966)

Engage in a fashion-themed visual puzzle game where you must quickly identify and select the perfect accessory for stylish girls. Test your observation, reaction time, and fashion sense across hundreds of unique levels.

**Highlights:** Addictive fashion puzzle gameplay, Find correct jewelry and accessories, Beautiful anime-inspired girls, Hundreds of stylish matching puzzles, Train focus and observation skills, Quick levels for short play sessions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SPECTRA free?

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

### Is Brainstorming Master free?

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

### Do SPECTRA or Brainstorming Master have ads?

Brainstorming Master shows ads; SPECTRA does not.

### Which is updated more often, SPECTRA or Brainstorming Master?

SPECTRA ships an update every 5 weeks, and Brainstorming Master weekly. Most recently, SPECTRA was updated on October 24, 2026 and Brainstorming Master 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.*