# ClassTimer vs Atomic Spectra

The clearest difference is review sentiment: Atomic Spectra at 100% against ClassTimer's 0%. Atomic Spectra also leads on rating (5.0 vs 2.0). ClassTimer's advantage is iOS requirement (12.0 vs 26.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Atomic Spectra holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of ClassTimer's written reviews are positive against 100% of Atomic Spectra's.

ClassTimer ships an update every 14 months, Atomic Spectra every 19 months. The most recent releases landed on June 25, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | ClassTimer | Atomic Spectra |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/classtimer/id493088052/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atomic-spectra/id6444901660/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 19 months |
| Monetization | Paid | Paid |
| Size | 19 MB | 7 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPad, Mac, Apple TV | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Jim Haungs](https://appshunter.io/developer/1498282259) |

## What reviewers say

### ClassTimer

[App page](https://appshunter.io/ios/app/classtimer/id493088052)

This app helps students develop essential time management skills with visual timers and customizable alerts. It supports various display formats and sounds to aid understanding and productivity in educational settings.

**Highlights:** Visual time display, Bar graph indicator for remaining time, Selectable buzzer sounds, Hours/minutes or minutes/seconds display, Start, stop, pause, and restart functions, Sound on/off control

**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 ClassTimer free?

ClassTimer costs $1.99, with no in-app purchases.

### Is Atomic Spectra free?

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

### Which has better reviews, ClassTimer or Atomic Spectra?

Atomic Spectra is rated higher. ClassTimer averages 2.0 out of 5 from 2 ratings, while Atomic Spectra averages 5.0 from 1 ratings.

### Do ClassTimer or Atomic Spectra have ads?

Neither ClassTimer nor Atomic Spectra shows ads.

### Which is updated more often, ClassTimer or Atomic Spectra?

ClassTimer ships an update every 14 months, and Atomic Spectra every 19 months. Most recently, ClassTimer was updated on June 25, 2026 and Atomic Spectra on August 31, 2026.

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