Comparison

Atomic Spectra vs Bayesian P

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

Head to head
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.

About

Bayesian P

This app helps interpret p-values from clinical trials by incorporating prior probabilities and Bayesian inference. It provides realistic interpretations of reported p-values, aiding in understanding the likelihood of experimental outcomes.

Highlights
  • Interpret p-values with prior probabilities
  • Bayesian inference for scientific expectations
  • Calculate probability of clinical trial outcomes
  • Realistic interpretation of reported p-values
  • Explanations and examples of Bayesian concepts
Features
Read full description

Calculate probability of outcomes of clinical trials, by interpreting reported p-values in the context of scientific expectations, using prior probabilities of outcomes and Bayesian thinking. · p-values are frequently misused and misinterpreted ( see American Statistical Association statement on p-values) · Bayesian inference aids interpretation of p-values with reference to prior knowledge of the probability of the experimental outcome · P-value Interpreter permits realistic interpretation of reported p-values from user entered pre-trial probabilities of clinical trial outcomes and p-values for single and sequential trials · "Learn more" buttons lead to explanations of prior probabilities, p-values and Bayesian probabilities employed in calculating the direct probability of the trial outcomes (e.g. null hypothesis being false), illustrated with examples

Screenshots

Atomic Spectra4 screens
Bayesian P4 screens

Verdict

The call

The clearest difference is price: Bayesian P at Free against Atomic Spectra's $1.99. Bayesian P also leads on update cadence (monthly vs every 19 months) and ratings volume (3 vs 1). Atomic Spectra's advantage is device support (4 vs 1). On rating, 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

Bayesian P 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

On the App Store both sit at effectively the same score — 5.0 for Atomic Spectra against 5.0 for Bayesian P. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Atomic Spectra ships an update every 19 months, Bayesian P monthly. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 4 level
Atomic Spectra versus Bayesian P: the parameters behind the verdict, then further details
ParameterAtomic SpectraBayesian P
Price$1.99Free — better
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 19 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Mac, Apple TV — betteriPhone
Requires iOS26.018.4 — better
Further details — not scored
Size7 MB7 MB
Age rating4+4+
DeveloperJim HaungsSamuel Kaplan

Customer experience

Atomic Spectra

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

Bayesian P

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

In-app purchases

None

Atomic Spectra

No in-app purchases

None

Bayesian P

No in-app purchases

Questions

Is Atomic Spectra free?
Atomic Spectra costs $1.99, with no in-app purchases.
Is Bayesian P free?
Bayesian P is free to download, with no in-app purchases.
Which has better reviews, Atomic Spectra or Bayesian P?
Atomic Spectra and Bayesian P are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Atomic Spectra or Bayesian P have ads?
Neither Atomic Spectra nor Bayesian P shows ads.
Which is updated more often, Atomic Spectra or Bayesian P?
Atomic Spectra ships an update every 19 months, and Bayesian P monthly. Most recently, Atomic Spectra was updated on September 30, 2026 and Bayesian P on October 9, 2026.

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