# WhyHere vs Nightfall Atlas

The clearest difference is in-app purchases: Nightfall Atlas at none against WhyHere's 2. Nightfall Atlas also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and ads there is nothing between them.

Both are free to download. WhyHere sells 2 in-app purchases, starting at $3.99 per month. Nightfall Atlas asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | WhyHere | Nightfall Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/nightfall-atlas/id6787785856/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free |
| Size | 18 MB | 30 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alessandro Carrara](https://appshunter.io/developer/1718454290) | [Builder of Things Studio LLC](https://appshunter.io/developer/6787785858) |

## What reviewers say

### WhyHere

[App page](https://appshunter.io/ios/app/whyhere/id6757790283)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WhyHere Pro – Monthly | $3.99 | per month |
| WhyHere Pro – Yearly | $11.99 | per year |


### Nightfall Atlas

[App page](https://appshunter.io/ios/app/nightfall-atlas/id6787785856)

This app assists astrophotographers in planning observing sessions by considering location, gear, sky conditions, Moon phase, and potential field risks. It helps users decide what to image, when to start, and whether a night is suitable for photography.

**Highlights:** Tonight and week-ahead planning, Target visibility and imaging window recommendations, Weather, Moon, darkness, and field-risk signals, Saved target and plan reminders, Native widgets and observing alerts, Plan sharing and image export, Equipment-aware planning

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is WhyHere free?

WhyHere is free to download, with in-app purchases available.

### Is Nightfall Atlas free?

Nightfall Atlas is free to download, with no in-app purchases.

### Do WhyHere or Nightfall Atlas have ads?

Neither WhyHere nor Nightfall Atlas shows ads.

### Which is updated more often, WhyHere or Nightfall Atlas?

WhyHere ships an update every 3 days, and Nightfall Atlas every 3 days. Most recently, WhyHere was updated on October 5, 2026 and Nightfall Atlas on October 10, 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.*