Serious Solids vs Atomic Spectra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Serious Solids
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.
- Predict precipitation reactions
- Combine cations and anions
- Form solid precipitates
- Experiment with ion symbols
- Earn points by swiping spectator ions
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The goal of the game is to select the correct ratios of cations (+) and anions (-) that combine to form solid precipitates at 0.1M ion concentrations, neutral pH, and 25 degrees C. Experiment with the interface by clicking the ion symbols multiple times. When the name and formula looks good to you, submit your solid by clicking the button at the bottom of the screen. Swipe spectator ions away from the screen to remove them and to earn extra game points. Good luck! We sincerely hope this game helps you learn how to predict the product of common precipitation reactions. This app was created and developed at Tennessee Tech University by instructor Janet Coonce, student Evgeny Vasilyev, and student Rodney Mitchell, in collaboration with TTU's iCube.
Atomic Spectra
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.
- 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
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Reference app for Strong Line Atomic Emission Spectra in the visible range of 380-740nm. Can search by element name, symbol, or atomic number. Sort by name, symbol, or count of spectra lines. Drill down to an element and inspect the individual spectra lines. Tap on the line to show it in the spectrum; tap on the spectrum to scroll to that line.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Serious Solids | Atomic Spectra |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 2.7 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 48 months | Every 19 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 52 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Cheryl Montgomery | Jim Haungs |
Customer experience
Serious Solids
Atomic Spectra
In-app purchases
Serious Solids
No in-app purchases
Atomic Spectra
No in-app purchases
Questions
Is Serious Solids free?
Is Atomic Spectra free?
Which has better reviews, Serious Solids or Atomic Spectra?
Do Serious Solids or Atomic Spectra have ads?
Which is updated more often, Serious Solids or Atomic Spectra?
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