Combination & Decomposition vs Atomic Spectra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Combination & Decomposition
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"Combination and Decomposition Reactions" is an immersive chemistry lab experiment app for high school students. Embark on a guided journey to explore the intricacies of these reactions with step-by-step protocols, 3D models, and interactive features. Key Highlights: 1. Hands-on learning of combination and decomposition reactions 2. Comprehensive guide for high school students 3. Detailed 3D models and rotational views enhance understanding 4. Audio guide for comprehensive insights 5. Zoom functionality for close examination Features: 1. Detailed 3D models with labeled apparatus 2. Informative audio guide 3. Rotational models for varied perspectives 4. Suitable for hands-on lab experiments 5. Interactive zoom functionality for detailed examination
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 iOS requirement: Combination & Decomposition at 11.0 against Atomic Spectra's 26.0. On price, update cadence, 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
Combination & Decomposition costs $1.99 and Atomic Spectra $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Combination & Decomposition ships an update every 33 months, Atomic Spectra every 19 months. The most recent releases landed on September 9, 2026 and August 31, 2026 respectively.
| Parameter | Combination & Decomposition | Atomic Spectra |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 33 months | Every 19 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 149 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | VIRTUAL FILAMENTS PRIVATE LIMITED | Jim Haungs |
In-app purchases
Combination & Decomposition
No in-app purchases
Atomic Spectra
No in-app purchases
Questions
Is Combination & Decomposition free?
Is Atomic Spectra free?
Do Combination & Decomposition or Atomic Spectra have ads?
Which is updated more often, Combination & Decomposition or Atomic Spectra?
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