Comparison

Serious Solids vs Atomic Spectra

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Predict precipitation reactions
  • Combine cations and anions
  • Form solid precipitates
  • Experiment with ion symbols
  • Earn points by swiping spectator ions
Features
Read full description

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.

About

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.

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
Read full description

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

Serious Solids4 screens
Atomic Spectra4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Serious Solids versus Atomic Spectra: the parameters behind the verdict, then further details
ParameterSerious SolidsAtomic Spectra
PriceFree — better$1.99
Rating2.7 (7 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings7 — better1
Update frequencyEvery 48 monthsEvery 19 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPodiPhone, iPad, Mac, Apple TV — better
Requires iOS12.0 — better26.0
Further details — not scored
Size52 MB7 MB
Age rating4+4+
DeveloperCheryl MontgomeryJim Haungs

Customer experience

Serious Solids

All ratings7 ratings
Positive42.9%
Neutral0.0%
Negative57.1%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Atomic Spectra

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Serious Solids

No in-app purchases

None

Atomic Spectra

No in-app purchases

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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