# Project SPECTRA! vs CloudLabs Weak Acids and Bases

The clearest difference is device support: CloudLabs Weak Acids and Bases at 3 against Project SPECTRA!'s 1. CloudLabs Weak Acids and Bases also leads on iOS requirement (9.0 vs 12.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Project SPECTRA! ships an update every 33 months, CloudLabs Weak Acids and Bases every 27 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Project SPECTRA! | CloudLabs Weak Acids and Bases |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 27 months** |
| Size | 13 MB | 79 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [University of Colorado Boulder](https://appshunter.io/developer/972210292) | [Jiovany Orozco](https://appshunter.io/developer/1114670847) |

## What reviewers say

### Project SPECTRA!

[App page](https://appshunter.io/ios/app/project-spectra/id1561634722)

**Features:** macOS Compatibility

**In-app purchases:** none


### CloudLabs Weak Acids and Bases

[App page](https://appshunter.io/ios/app/cloudlabs-weak-acids-and-bases/id1596507143)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Project SPECTRA! free?

Project SPECTRA! is free to download, with no in-app purchases.

### Is CloudLabs Weak Acids and Bases free?

CloudLabs Weak Acids and Bases is free to download, with no in-app purchases.

### Do Project SPECTRA! or CloudLabs Weak Acids and Bases have ads?

Neither Project SPECTRA! nor CloudLabs Weak Acids and Bases shows ads.

### Which is updated more often, Project SPECTRA! or CloudLabs Weak Acids and Bases?

Project SPECTRA! ships an update every 33 months, and CloudLabs Weak Acids and Bases every 27 months. Most recently, Project SPECTRA! was updated on October 27, 2026 and CloudLabs Weak Acids and Bases on October 27, 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.*