# Daylights vs Growing Degree Days Tracker

The clearest difference is rating: Daylights at 4.6 against Growing Degree Days Tracker's 3.0. Daylights also leads on in-app purchases (none vs 2) and review sentiment (67% vs 33%). Growing Degree Days Tracker's advantage is update cadence (weekly vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Growing Degree Days Tracker sells 2 in-app purchases, starting at $3.99 per year. Daylights asks for nothing beyond the download.

Daylights holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Daylights has 55 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Daylights's written reviews are positive against 33% of Growing Degree Days Tracker's.

Daylights ships an update every 6 months, Growing Degree Days Tracker weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Daylights | Growing Degree Days Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (55 ratings)](https://appshunter.io/ios/app/daylights/id1344857062/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/growing-degree-days-tracker/id6742846678/reviews) |
| Number of ratings | **55** | 1 |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 3 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Janne Käki](https://appshunter.io/developer/390157382) | [Bernhard Hering](https://appshunter.io/developer/327542085) |

## What reviewers say

### Daylights

[App page](https://appshunter.io/ios/app/daylights/id1344857062)

Visualize daylight and night hours globally with three distinct styles. Explore how time zones and daylight saving changes affect your location's light cycles.

**Highlights:** Global daylight visualization, Three distinct visualization styles, Explore polar night and midnight sun, Daylight saving time impact simulation, Time zone shift simulation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Growing Degree Days Tracker

[App page](https://appshunter.io/ios/app/growing-degree-days-tracker/id6742846678)

Track seasonal development and blooming phases using temperature-based indicators like GTS and GDD. Ideal for farmers, gardeners, and beekeepers to understand nature's progression based on accumulated heat, not just calendar dates.

**Highlights:** Automatic location detection, Daily updated temperature sums (GTS/GDD), Bloom calendar with progress indicator, Monitor multiple locations, Location-based seasonal development view

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| bis zu drei Standorte | $3.99 | per year |
| Bis zu zehn Standorte | $12.99 | per year |


## Frequently asked questions

### Is Daylights free?

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

### Is Growing Degree Days Tracker free?

Growing Degree Days Tracker is free to download, with in-app purchases available.

### Which has better reviews, Daylights or Growing Degree Days Tracker?

Daylights is rated higher. Daylights averages 4.6 out of 5 from 55 ratings, while Growing Degree Days Tracker averages 3.0 from 1 ratings.

### Do Daylights or Growing Degree Days Tracker have ads?

Neither Daylights nor Growing Degree Days Tracker shows ads.

### Which is updated more often, Daylights or Growing Degree Days Tracker?

Daylights ships an update every 6 months, and Growing Degree Days Tracker weekly. Most recently, Daylights was updated on October 24, 2026 and Growing Degree Days Tracker on October 24, 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.*