# Spectrumizer vs 99

The clearest difference is ads: Spectrumizer at none against 99's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Spectrumizer ships an update every 5 days, 99 weekly. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Spectrumizer | 99 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Weekly |
| Size | 3 MB | 5 MB |
| Requires iOS | 17.6 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mehran Naghizadeh](https://appshunter.io/developer/1273578621) | [Nazir Dogan](https://appshunter.io/developer/1048892607) |

## What reviewers say

### Spectrumizer

[App page](https://appshunter.io/ios/app/spectrumizer/id6739510841)

**Features:** macOS Compatibility

**In-app purchases:** none


### 99

[App page](https://appshunter.io/ios/app/99-the-timing-challenge/id6756195728)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spectrumizer free?

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

### Is 99 free?

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

### Do Spectrumizer or 99 have ads?

99 shows ads; Spectrumizer does not.

### Which is updated more often, Spectrumizer or 99?

Spectrumizer ships an update every 5 days, and 99 weekly. Most recently, Spectrumizer was updated on October 28, 2026 and 99 on October 30, 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.*