Comparison

Serious Solids vs Tennessee Tech Eagle Engage

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

Tennessee Tech Eagle Engage

This app helps students register for and check into campus events. Student organization officers can manage group activities, collaborate with members, and request funding for events. Stay informed about everything happening at Tennessee Tech.

Highlights
  • Event registration
  • Event check-in
  • Student organization management
  • Group collaboration
  • SOLO fund requests
  • Activity updates
Features
Read full description

Eagle Engage allows students to register for and check in at events, including SOLO concerts and dozens of other activities. Student organization officers can conduct group business, collaborate with members, request SOLO funds, and register events. Don’t miss a thing a Tennessee Tech - download and set up Eagle Engage today.

Screenshots

Serious Solids4 screens
Tennessee Tech Eagle Engage4 screens

Verdict

The call

The clearest difference is rating: Tennessee Tech Eagle Engage at 4.4 against Serious Solids's 2.7. Tennessee Tech Eagle Engage also leads on update cadence (every 4 weeks vs every 48 months) and ratings volume (30 vs 7). Serious Solids's advantage is iOS requirement (12.0 vs 17.4). On price, ads, in-app purchases and monetization model 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

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

ReceptionRating · Positive reviews · Number of ratings

Tennessee Tech Eagle Engage holds the better App Store score, 4.4 against 2.7. Both are backed by a comparable volume of ratings — 7 and 30 respectively.

UpkeepUpdate frequency

Serious Solids ships an update every 48 months, Tennessee Tech Eagle Engage every 4 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Serious Solids versus Tennessee Tech Eagle Engage: the parameters behind the verdict, then further details
ParameterSerious SolidsTennessee Tech Eagle Engage
PriceFreeFree
Rating2.7 (7 ratings)4.4 (30 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings730 — better
Update frequencyEvery 48 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.4
Further details — not scored
Size52 MB86 MB
Age rating4+17+
DeveloperCheryl MontgomeryTennessee Technological University

Customer experience

Serious Solids

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

Tennessee Tech Eagle Engage

All ratings30 ratings
Positive86.7%
Neutral0.0%
Negative13.3%

In-app purchases

None

Serious Solids

No in-app purchases

None

Tennessee Tech Eagle Engage

No in-app purchases

Questions

Is Serious Solids free?
Serious Solids is free to download, with no in-app purchases.
Is Tennessee Tech Eagle Engage free?
Tennessee Tech Eagle Engage is free to download, with no in-app purchases.
Which has better reviews, Serious Solids or Tennessee Tech Eagle Engage?
Tennessee Tech Eagle Engage is rated higher. Serious Solids averages 2.7 out of 5 from 7 ratings, while Tennessee Tech Eagle Engage averages 4.4 from 30 ratings.
Do Serious Solids or Tennessee Tech Eagle Engage have ads?
Neither Serious Solids nor Tennessee Tech Eagle Engage shows ads.
Which is updated more often, Serious Solids or Tennessee Tech Eagle Engage?
Serious Solids ships an update every 48 months, and Tennessee Tech Eagle Engage every 4 weeks. Most recently, Serious Solids was updated on October 23, 2026 and Tennessee Tech Eagle Engage on October 25, 2026.

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