# SunForecast vs DroneCJ

The clearest difference is update cadence: SunForecast at every 5 days against DroneCJ's every 3 weeks. SunForecast also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. SunForecast sells 2 in-app purchases, starting at $1.99 per month and DroneCJ sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

SunForecast ships an update every 5 days, DroneCJ every 3 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SunForecast | DroneCJ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/sunforecast/id6745263927/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 106 MB | 103 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxime Pontoire](https://appshunter.io/developer/525396222) | [Julien Cecconi](https://appshunter.io/developer/1836636742) |

## What reviewers say

### SunForecast

[App page](https://appshunter.io/ios/app/sunforecast/id6745263927)

Predicts the quality of sunrises and sunsets based on weather and atmospheric data. Offers customizable notifications, photography tips, and multi-location support for capturing the best sky moments.

**Highlights:** Sunrise/sunset quality predictions, Customizable notifications, Multi-location support, Home screen widget, Photography tips, Adaptive interface

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $14.99 | per year |


### DroneCJ

[App page](https://appshunter.io/ios/app/dronecj/id6751755255)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DroneCJ Plus Monthly | $3.99 | per month |
| DroneCJ Plus Yearly | $44.99 | per year |


## Frequently asked questions

### Is SunForecast free?

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

### Is DroneCJ free?

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

### Do SunForecast or DroneCJ have ads?

Neither SunForecast nor DroneCJ shows ads.

### Which is updated more often, SunForecast or DroneCJ?

SunForecast ships an update every 5 days, and DroneCJ every 3 weeks. Most recently, SunForecast was updated on October 14, 2026 and DroneCJ on October 3, 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.*