# Atmospheric Model vs Help Me Devvon

The clearest difference is ads: Atmospheric Model at none against Help Me Devvon's shown. Atmospheric Model also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 80%). Help Me Devvon's advantage is update cadence (every 2 months vs every 36 months) and ratings volume (9 vs 1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atmospheric Model holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Help Me Devvon has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Atmospheric Model's written reviews are positive against 80% of Help Me Devvon's.

Atmospheric Model ships an update every 36 months, Help Me Devvon every 2 months. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Atmospheric Model | Help Me Devvon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/atmospheric-model/id1299565883/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/help-me-devvon/id1519307774/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 36 months | **Every 2 months** |
| Monetization | **Free** | Ad-supported |
| Size | 12 MB | 65 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Richard Loda](https://appshunter.io/developer/1291794366) | [Devvon Terrell LLC](https://appshunter.io/developer/1519307773) |

## What reviewers say

### Atmospheric Model

[App page](https://appshunter.io/ios/app/atmospheric-model/id1299565883)

Explore planetary atmospheres with a radiative transfer model. Calculate emission temperatures and flux densities, then modify parameters like albedo and solar constant to simulate atmospheric changes and their effects on climate.

**Highlights:** Radiative transfer model for planetary atmospheres, Calculates emission temperature and flux densities, Adjustable parameters: albedo, distance from sun, extinction coefficients, Supports 9 solar system planets or custom planets, Generates flux diagrams of incoming and outgoing radiation, Saves and compares two model run results, Exports data to CSV for spreadsheet analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Help Me Devvon

[App page](https://appshunter.io/ios/app/help-me-devvon/id1519307774)

This platform offers audio production tutorials for mixing, mastering, and general audio engineering. It also provides high-quality templates for popular Digital Audio Workstations (DAWs) and fosters a supportive community for audio enthusiasts.

**Highlights:** Mixing tutorials, Mastering tutorials, Audio production guides, DAW templates (Pro Tools, Logic, Ableton, Cubase, FL Studio), Community forum, Audio enthusiast platform

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Atmospheric Model free?

Atmospheric Model is free to download, with no in-app purchases.

### Is Help Me Devvon free?

Help Me Devvon is free to download, with no in-app purchases.

### Which has better reviews, Atmospheric Model or Help Me Devvon?

Atmospheric Model is rated higher. Atmospheric Model averages 5.0 out of 5 from 1 ratings, while Help Me Devvon averages 4.6 from 9 ratings.

### Do Atmospheric Model or Help Me Devvon have ads?

Help Me Devvon shows ads; Atmospheric Model does not.

### Which is updated more often, Atmospheric Model or Help Me Devvon?

Atmospheric Model ships an update every 36 months, and Help Me Devvon every 2 months. Most recently, Atmospheric Model was updated on October 10, 2026 and Help Me Devvon on October 17, 2026.

---

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