Serious Solids vs Aktiv Learning
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
Read full descriptionHide 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.
Aktiv Learning
This platform offers dynamic problems and interactive tools for college-level chemistry and math. It helps students visualize abstract STEM concepts and provides instructors with real-time insights into class understanding. Features include a mobile-friendly Lewis structure drawing tool and over 250 practice questions.
- Interactive Lewis structure drawing tool
- Dynamic STEM problems
- Real-time class results
- Over 250 built-in practice questions
- Create in-class or homework assignments
- Isoform recognition for answers
Read full descriptionHide full description
Aktiv Learning is an active learning platform built specifically for college-level chemistry and mathematics. Say goodbye to static content and generic multiple choice questions and hello to dynamic problems that are designed to help students learn and visualize abstract concepts in STEM. Aktiv Learning allows chemistry instructors to ask students engaging questions, such as drawing Lewis structures, and receive real-time information on what structures the class is drawing. The app features a custom-built tool that allows students and instructors to quickly and intuitively draw Lewis structures on mobile devices. Additionally, both students and instructors have access to over 250 built-in questions related to Lewis structures, resonance, molecular geometries, VSEPR, hybridization, sigma and pi bonding, and molecular polarity. Features: • Intuitive Lewis structures drawing tool built specifically for mobile devices - Use as engaging demonstration for your students to show example Lewis structures and reinforce concepts such as the octet rule, formal charge, and VSEPR. Students can take advantage of the drawing tool to visualize the relationship between Lewis structures and molecular shapes. • Create in-class or homework assignments - Perfect for clicker, recitation, or review problems. Students receive push notifications to alert and remind them of pending assignments. • Assign or practice with over 250 built-in questions related to Lewis structures, resonance, molecular geometries, VSEPR, hybridization, sigma and pi bonding, and molecular polarity. • Real-time class results - Quickly find common incorrect structures to address student misunderstanding before exams. • Isoform recognition - Aktiv’s technology recognizes correct answers independent of the drawn structure orientation. • Export student activity - Student participation and performance exported in a tap of a button. • Easy sign-up - Students and instructors can create accounts and join courses all within the app in a few steps. • School IT and device independent - Assign, work, and review from any mobile device and over any network connection. More content and features coming soon!
Screenshots
Verdict
The clearest difference is rating: Aktiv Learning at 3.2 against Serious Solids's 2.7. Aktiv Learning also leads on update cadence (every 3 weeks vs every 48 months) and ratings volume (184 vs 7). Serious Solids's advantage is in-app purchases (none vs 1) and review sentiment (100% vs 73%). On price, ads and device support 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
Both are free to download. Aktiv Learning sells 1 one-off in-app purchase. Serious Solids asks for nothing beyond the download.
Aktiv Learning holds the better App Store score, 3.2 against 2.7. That said, the two scores are not equally well evidenced: Aktiv Learning has 184 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 100% of Serious Solids's written reviews are positive against 73% of Aktiv Learning's, so the app with the better star average is not the one people write more warmly about.
Serious Solids ships an update every 48 months, Aktiv Learning every 3 weeks. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.
| Parameter | Serious Solids | Aktiv Learning |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (7 ratings) | 3.2 (184 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 72.5% of reviews |
| Number of ratings | 7 | 184 — better |
| Update frequency | Every 48 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Cheryl Montgomery | Top Hat Monocle |
Customer experience
Serious Solids
Aktiv Learning
Bugs and requests
Serious Solids
Not enough reviews yet to summarise bugs or requests.
Aktiv Learning
Reported bugs
10 issues- Pop-up warnings flicker and disappear too quickly
- Drag-and-drop fails 70% of the time on iOS
- App crashes on specific problems with no recovery
- Login errors and password reset failures
- Users locked out of questions permanently
Show 5 moreShow fewer
- Window resizing issues on iPad 12.9in
- Questions don't load properly or display incompletely
- Subscripts/superscripts not displaying on Mac
- Split-screen functionality disabled
- Inconsistent performance between app and web versions
Requested features
10 requests- In-app notification system for assignment reminders
- Ability to sign up for courses on mobile app
- Split-screen functionality on iPad
- Zoom capability for periodic table
- Reset button for Lewis structure questions
Show 5 moreShow fewer
- Full solutions displayed after using all attempts
- Better hints and guidance for dimensional analysis
- School login integration on mobile app
- Improved question clarity and directions
- Subscript and superscript display on web version
In-app purchases
Serious Solids
No in-app purchases
Aktiv Learning
- Chem101 Course Activation$29.99
Questions
Is Serious Solids free?
Is Aktiv Learning free?
Which has better reviews, Serious Solids or Aktiv Learning?
Do Serious Solids or Aktiv Learning have ads?
Which is updated more often, Serious Solids or Aktiv Learning?
Other comparisons















