Atomic Spectra vs Physics Formula Library by CS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Physics Formula Library by CS
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Physics doesn’t have to feel overwhelming. Physics Formula Library makes learning, practicing, and mastering physics easier and more enjoyable than ever. Whether you’re a student preparing for exams, a teacher looking for a classroom resource, or a curious learner, this app is your all-in-one physics companion. Why you’ll love it: - 200+ Physics Formulas across mechanics, thermodynamics, electricity & magnetism, waves, optics, modern physics, astronomy, and fluids. Each formula comes with definitions, assumptions, and clear examples. - Interactive Calculators – just enter your known values, and the app solves for the missing one. Includes step-by-step explanations, unit conversions, and error checks. - Smart Quizzes – test your knowledge with customizable quizzes. Start with quick 5-minute drills or challenge yourself with advanced problems. Learn from detailed answer explanations. - Physical Constants Library – 100+ constants with historical notes and real-world usage. - Personalized Learning – save your favorite formulas, keep notes, and track your most-used references. - Beautiful Themes – choose from 10+ designs like Quantum, Galaxy, or Nature to match your mood and style. - Offline Ready – access everything, anytime, even without internet. Perfect for: - Students: Learn faster with examples, practice quizzes, and easy-to-use calculators. - Teachers: Use formulas and quizzes as teaching aids in the classroom. - Professionals & Enthusiasts: Quick reference for engineering, research, or personal curiosity. Upgrade to Premium to unlock advanced calculators, unlimited favorites, custom themes, and in-depth performance tracking. With Physics Formula Library, you’ll always have the right formula, calculator, and knowledge at your fingertips.
Screenshots
Verdict
The clearest difference is price: Physics Formula Library by CS at Free against Atomic Spectra's $1.99. Physics Formula Library by CS also leads on update cadence (every 6 months vs every 19 months) and iOS requirement (18.4 vs 26.0). Atomic Spectra's advantage is in-app purchases (none vs 1) and ads (none vs shown).
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Physics Formula Library by CS is free to download; Atomic Spectra costs $1.99 up front. Physics Formula Library by CS sells 1 one-off in-app purchase. Atomic Spectra asks for nothing beyond the download.
Atomic Spectra ships an update every 19 months, Physics Formula Library by CS every 6 months. The most recent releases landed on September 30, 2026 and October 20, 2026 respectively.
| Parameter | Atomic Spectra | Physics Formula Library by CS |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 19 months | Every 6 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Mac, Apple TV — better | iPhone |
| Requires iOS | 26.0 | 18.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Jim Haungs | ChatStick Company Limited |
In-app purchases
Atomic Spectra
No in-app purchases
Physics Formula Library by CS
- Unlock All Features$1.99
Questions
Is Atomic Spectra free?
Is Physics Formula Library by CS free?
Do Atomic Spectra or Physics Formula Library by CS have ads?
Which is updated more often, Atomic Spectra or Physics Formula Library by CS?
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