# Serious Solids vs Atomic Spectra

The clearest difference is price: Serious Solids at Free against Atomic Spectra's $1.99. Serious Solids also leads on ratings volume (7 vs 1) and iOS requirement (12.0 vs 26.0). Atomic Spectra's advantage is rating (5.0 vs 2.7) and update cadence (every 19 months vs every 48 months). On review sentiment, ads and in-app purchases there is nothing between them.

Serious Solids is free to download; Atomic Spectra costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Atomic Spectra holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: Serious Solids has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Serious Solids ships an update every 48 months, Atomic Spectra every 19 months. The most recent releases landed on June 3, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Serious Solids | Atomic Spectra |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.7 (7 ratings)](https://appshunter.io/ios/app/serious-solids/id992220810/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-spectra/id6444901660/reviews)** |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 19 months** |
| Monetization | **Free** | Paid |
| Size | 52 MB | 7 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Cheryl Montgomery](https://appshunter.io/developer/611176285) | [Jim Haungs](https://appshunter.io/developer/1498282259) |

## What reviewers say

### Serious Solids

[App page](https://appshunter.io/ios/app/serious-solids/id992220810)

This educational game challenges players to identify the correct combinations of cations and anions to form solid precipitates. It's designed to help users learn to predict the products of common precipitation reactions through interactive experimentation.

**Highlights:** Predict precipitation reactions, Combine cations and anions, Form solid precipitates, Experiment with ion symbols, Earn points by swiping spectator ions

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic Spectra

[App page](https://appshunter.io/ios/app/atomic-spectra/id6444901660)

This reference app provides detailed information on strong line atomic emission spectra within the visible range. Users can search for elements by name, symbol, or atomic number and inspect individual spectra lines. It offers interactive features to visualize and navigate spectral data.

**Highlights:** Visible range spectra (380-740nm), Search by element name, symbol, or atomic number, Sort by name, symbol, or spectra line count, Inspect individual spectra lines, Interactive spectrum visualization

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Serious Solids free?

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

### Is Atomic Spectra free?

Atomic Spectra costs $1.99, with no in-app purchases.

### Which has better reviews, Serious Solids or Atomic Spectra?

Atomic Spectra is rated higher. Serious Solids averages 2.7 out of 5 from 7 ratings, while Atomic Spectra averages 5.0 from 1 ratings.

### Do Serious Solids or Atomic Spectra have ads?

Neither Serious Solids nor Atomic Spectra shows ads.

### Which is updated more often, Serious Solids or Atomic Spectra?

Serious Solids ships an update every 48 months, and Atomic Spectra every 19 months. Most recently, Serious Solids was updated on June 3, 2026 and Atomic Spectra on August 31, 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.*