Comparison

Calphace vs Chrona

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

Head to head
About

Calphace

Features
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Calendar + Photo + Face = Calphace! Calphace is an application that generates a composite image of a calendar on a photo of your choice and sets it on the photos watch face of your Apple Watch. There are times when you just want to easily check your calendar on your Apple Watch! Some calendar apps allow you to check your calendar, but it takes several taps. In such cases, if you set the image generated by Calphace as a photos watch face, you can check the calendar just by lifting your wrist. *Calphace does not display a calendar with complications, but only generates a composite image of a calendar,  so it is not possible to check the schedule, etc. entered with the iPhone calendar application. Please understand. ・You can adjust the position and size of the image while checking it in the preview. ・You can select the calendar to be created from the current month and the following month. ・The color of each calendar letter (year, month, weekday, Saturday, and holiday) can be freely selected. ・You can select the starting day of the month or day of the week for the calendar. ・The year display format can be selected, such as 2021, Reiwa 3, etc. ・Month display format can be selected, such as September, SEP, etc. ・Select the display format for the day of the week, such as Mon, MON, etc. ・Japanese national holidays are supported. ・URL scheme support (calphace://) *Starting with watchOS 11, you can adjust the position of the watch using the following steps. If it overlaps with the calendar, please adjust it accordingly. ・Open the Watch app on your iPhone. ・Select the photo watch face you want to adjust from "My Watch" and "My Faces". ・Tap the "n photos" button next to "Select Photos" under "Content". ・Tap the photo you want to adjust and adjust the layout. ・Tap "Save" in the top-right corner.

About

Chrona

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Unleash the power of time with the Countdown app. Personalize your countdowns, set unique notifications, and seamlessly sync with your devices. Your ultimate tool for mastering every moment.

Screenshots

Calphace2 screens
Chrona4 screens

Verdict

The call

The clearest difference is in-app purchases: Chrona at none against Calphace's 3. Chrona also leads on ads (none vs shown) and device support (4 vs 1). On price, update cadence and iOS requirement 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. Calphace sells 3 one-off in-app purchases. Chrona asks for nothing beyond the download.

UpkeepUpdate frequency

Calphace ships an update monthly, Chrona every 2 months. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 3 level
Calphace versus Chrona: the parameters behind the verdict, then further details
ParameterCalphaceChrona
PriceFreeFree
Update frequencyMonthly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPad, Mac, Apple Watch — better
Requires iOS17.0 — better17.5
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperAkihiro UsuiYevhenii Zozulia

In-app purchases

3 purchases

Calphace

One-time3
  • Snack-Sized Tip$0.49
  • Coffee-Sized Tip$1.99
  • Lunch-Sized Tip$3.99
None

Chrona

No in-app purchases

Questions

Is Calphace free?
Calphace is free to download, with in-app purchases available.
Is Chrona free?
Chrona is free to download, with no in-app purchases.
Do Calphace or Chrona have ads?
Calphace shows ads; Chrona does not.
Which is updated more often, Calphace or Chrona?
Calphace ships an update monthly, and Chrona every 2 months. Most recently, Calphace was updated on October 15, 2026 and Chrona on October 4, 2026.

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