# Changes in Temperature & Color vs Atomic Spectra

The clearest difference is iOS requirement: Changes in Temperature & Color at 11.0 against Atomic Spectra's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Changes in Temperature & Color costs $1.99 and Atomic Spectra $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Changes in Temperature & Color ships an update every 34 months, Atomic Spectra every 19 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Changes in Temperature & Color | Atomic Spectra |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-spectra/id6444901660/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 19 months** |
| Monetization | — | Paid |
| Size | 132 MB | 7 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) | [Jim Haungs](https://appshunter.io/developer/1498282259) |

## What reviewers say

### Changes in Temperature & Color

[App page](https://appshunter.io/ios/app/changes-in-temperature-and-color/id1540040542)

**Features:** macOS Compatibility

**In-app purchases:** none


### Atomic Spectra

[App page](https://appshunter.io/ios/app/atomic-spectra/id6444901660)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Changes in Temperature & Color free?

Changes in Temperature & Color costs $1.99, with no in-app purchases.

### Is Atomic Spectra free?

Atomic Spectra costs $1.99, with no in-app purchases.

### Do Changes in Temperature & Color or Atomic Spectra have ads?

Neither Changes in Temperature & Color nor Atomic Spectra shows ads.

### Which is updated more often, Changes in Temperature & Color or Atomic Spectra?

Changes in Temperature & Color ships an update every 34 months, and Atomic Spectra every 19 months. Most recently, Changes in Temperature & Color was updated on November 7, 2026 and Atomic Spectra on November 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*