Comparison

Twilight Time vs Celestron LABS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

About

Twilight Time

Features

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Shows the time before sunrise and after sunset when the sun is below the horizon and it is bright outside (twilight). Twilight 1. Civil twilight 2. Nautical twilight 3. Astronomical twilight

About

Celestron LABS

Features

Read full description

This app needs to be connected to our WiFi camera in order to use it。 1. Through the app, you can view the real-time video. 2. Through the app, you can record video and photos to phones

Screenshots

Twilight Time1 screens

Celestron LABS4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 3 level

Twilight Time versus Celestron LABS: the parameters behind the verdict, then further details
Parameter	Twilight Time	Celestron LABS
Price	Free	Free
Update frequency	Every 2 weeks — better	Every 2 months
Ads	Yes	No — better
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.7.10	12.0 — better
Further details — not scored
Size	36 MB	15 MB
Age rating	4+	4+
Developer	Hideaki Uchikoshi	Shenzhen Joyhonest Technology Co., Ltd

In-app purchases

None

Twilight Time

No in-app purchases

None

Celestron LABS

No in-app purchases

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.