Comparison

bClk vs Castora

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

Head to head
About

bClk

This customizable night clock offers a vibrant color palette and adjustable brightness, perfect for use in low-light conditions. It includes features like displaying a second time zone and a unique swipe gesture for flashlight functionality. The app is designed to stay on while plugged in, with intelligent power management when unplugged.

Highlights
  • Customizable colors and brightness
  • 12/24 hour format with PM indicator
  • Display of a second time zone
  • Swipe gesture for flashlight mode
  • Orientation-dependent controls
  • Auto-lock management for continuous display
Features
Read full description

Night clock. Choice of 12 or 24 hr format. 12hr format has an extra "." to denote pm hours. Whole rainbow of color choices and variable brightnesses. Guide button leads you to separate page (and disappears after 3 seconds if not tapped). Set color/brightness by tapping on digits so you are less likely to change something while just handling the clock in the dark. Be sure to plug in because it does draw power. Single tap: change brightness. Double tap: change digit color. Swipe the digits to change background color to bright red to use as a night flashlight. Swipe digits again to get back to black blackground (and old brightness). Both brightness change and color change are orientation-dependent. Single tap in Portrait mode increases brightness, in Landscape decreases brightness. Similarly, double-tap in Portrait cycles one way and reverses if in Landscape. Display another time zone: If you are living in Maui but your officemates are all in Chicago and you want to keep track of what time it is there. Digits are italic if the time zone is enabled. AutoLock is turned off in the app so the clock continues to display during the night but with v1.80 and up if the phone is unplugged or power is lost then the display will turn off after the number of minutes set in the AutoLock feature. If AutoLock is set to never then the display will stay on but at the lowest power consumption setting. A 1/2 full battery icon is displayed if battery is being drained (see screenshot for largest iPhone).

About

Castora

Features
Read full description

Castora — The Ultimate diecast Collection Tracker Every collector knows the feeling: standing in the aisle, phone out, trying to remember if you already have this casting. Castora ends the guesswork. Track your diecast collection and wishlist, browse the complete catalog, and watch your collection come to life with stats, series progress, and daily discoveries — all built for collectors, by a collector. COLLECTION & WISHLIST • Log every car you own with year, series, and Treasure Hunt / Super Treasure Hunt status • Keep a wishlist of cars you're hunting for • Add your own photos. • Filter and sort by year, series, TH/STH status, and more FULL CATALOG • Browse the entire diecast catalog, organized by year and series • See at a glance which cars you own, want, or haven't discovered yet • "Show Primary Variants only" cuts through color-variant clutter STATS THAT MOTIVATE • Track your overall catalog completion percentage • Drill into any year to see TH/STH counts and series breakdowns • Get a celebration the moment you complete a series HOME DASHBOARD • Catalog progress at a glance • Recently added cars, right where you left off • "Almost Complete" shelf surfaces the series you're closest to finishing • Daily "Discover" picks introduce cars you don't own yet SYNC & BACKUP • iCloud sync keeps your collection and settings up to date across all your devices MADE FOR COLLECTORS Castora was built by a diecast collector who wanted a better way to track a growing collection — clean, fast, and focused on what matters: your cars. Start tracking today and turn your collection into a story worth showing off.

Screenshots

bClk4 screens
Castora4 screens

Verdict

The call

The clearest difference is update cadence: Castora at daily against bClk's monthly. bClk's advantage is device support (3 vs 1) and iOS requirement (13.2 vs 26.0). On price, ads and in-app purchases 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

bClk ships an update monthly, Castora daily. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 7 level
bClk versus Castora: the parameters behind the verdict, then further details
ParameterbClkCastora
PriceFreeFree
Rating4.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyMonthlyDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.2 — better26.0
Further details — not scored
Size0 MB7 MB
Age rating4+4+
DeveloperSean BrennanSaket Kumar

In-app purchases

None

bClk

No in-app purchases

None

Castora

No in-app purchases

Questions

Is bClk free?
bClk is free to download, with no in-app purchases.
Is Castora free?
Castora is free to download, with no in-app purchases.
Do bClk or Castora have ads?
Neither bClk nor Castora shows ads.
Which is updated more often, bClk or Castora?
bClk ships an update monthly, and Castora daily. Most recently, bClk was updated on October 21, 2026 and Castora on October 18, 2026.

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