# Twilight Time vs Celestron LABS

The clearest difference is ads: Celestron LABS at none against Twilight Time's shown. Celestron LABS also leads on iOS requirement (12.0 vs 16.7.10). Twilight Time's advantage is update cadence (every 2 weeks vs every 2 months). 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.

Twilight Time ships an update every 2 weeks, Celestron LABS every 2 months. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Twilight Time | Celestron LABS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 36 MB | 15 MB |
| Requires iOS | 16.7.10 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Shenzhen Joyhonest Technology Co., Ltd](https://appshunter.io/developer/1472724044) |

## What reviewers say

### Twilight Time

[App page](https://appshunter.io/ios/app/twilight-time/id6503278537)

**Features:** macOS Compatibility

**In-app purchases:** none


### Celestron LABS

[App page](https://appshunter.io/ios/app/celestron-labs/id6695728437)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Twilight Time free?

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

### Is Celestron LABS free?

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

### Do Twilight Time or Celestron LABS have ads?

Twilight Time shows ads; Celestron LABS does not.

### Which is updated more often, Twilight Time or Celestron LABS?

Twilight Time ships an update every 2 weeks, and Celestron LABS every 2 months. Most recently, Twilight Time was updated on September 23, 2026 and Celestron LABS on September 9, 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.*