Comparison

ZenCom vs Sunday First

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

Head to head
About

ZenCom

Remotely monitor your Zennio Intercom. See visitors, communicate with them, and unlock your door from any location.

Highlights
  • Remote intercom access
  • See visitors at your door
  • Two-way audio communication
  • Remote door unlocking
  • Global accessibility
Features
Read full description

With ZenCom, the user can interact with his Zennio Intercom from anywhere in the world. ZenCom allows you to see who is ringing your doorbell, having a conversation and even open remotely as if you were at home. LINKS User manual: https://www.zennio.com/documents/manual_zencom_en Privacy Policy: https://www.zennio.com/zencom-privacypolicy EULA: https://sip.zennioapps.com:4003/res/ZencomTermsOfUse.pdf

About

Sunday First

Transform an old smartphone into a stylish, always-on calendar clock. Features a large time display, monthly calendar, and intuitive navigation. Designed to prevent screen burn-in and offer a distraction-free experience.

Highlights
  • Always-on calendar clock
  • Large time display
  • Monthly calendar view
  • Swipe for 3D month navigation
  • Anti-burn-in protection
  • Sunday-first week layout
  • Portrait and landscape modes
Features
Read full description

That old phone gathering dust in your drawer? It’s time to give it new life as a beautiful, always-on calendar clock that’s actually useful. ICONIC DESIGN, ZERO DISTRACTIONS Big, bold time display with a striking red accent. A clean, readable monthly calendar visible from across the room. This isn’t just functional—it’s a stylish conversation piece for your nightstand, desk, or kitchen counter. TRADITIONAL SUNDAY-FIRST LAYOUT We default to Sunday as the first day of the week—the traditional start many still prefer, especially those who see it as the Lord’s Day and a fresh beginning rooted in rest and renewal. Weekends (Saturday and Sunday) in subtle gray, weekdays in bright white, today’s date circled in bold red. Simple, elegant, and thoughtfully designed. SMART 3D MONTH NAVIGATION Want to peek at next month? Swipe up. Check last month? Swipe down. Smooth 3D transitions that feel premium and intuitive. ANTI-BURN-IN PROTECTION OLED screens on older devices get the care they deserve. Subtle pixel shifting every 30 minutes prevents burn-in, so you can enjoy 24/7 display worry-free. PERFECT IN LANDSCAPE AND PORTRAIT MODE Built primarily for landscape—ideal for phone stands, charging docks, or propped setups. NEW IN v1.2: Full Portrait Mode Support! Enjoy the same stunning look vertically on stands, docks, or wall props. NEW IN v1.4: Complete Localization — Now fully adapted for languages and regions worldwide, with natural day names, formats, and week structures that feel right wherever you are. NEW IN v2.0: Analogue Clock Face — inspired by the red dots in calendar and digital clock, we designed a beautiful analogue clock face. Just swipe to the right. NEW IN v2.1: New White Analogue Clock Face — you requested, we delivered: a new beautiful clock face. Just triple click on the clock face! ABSOLUTELY ZERO NONSENSE • No ads. Ever. • No subscriptions • No tracking • No analytics • No forced sign-ins • No unwanted cloud sync Just a straightforward clock and calendar that respects your time and your device. WHAT YOU GET • Large, easy-to-read time display • Full monthly calendar view • Today’s date highlighted in red • Swipe to view previous/next months with 3D transitions • Screen burn-in prevention via pixel shift • Never dims or locks while app is active • Sunday-first week layout • Weekend/weekday colour differentiation PERFECT FOR • Reviving that old iPhone or iPad you can’t part with • Bedside nightstand displays • Office desk clock & calendar • Kitchen counter • Guest rooms • Home offices • Anywhere you need time + date at a glance TECHNICAL STUFF Best when charging (to stay always-on). Compatible with iPhone/iPad on iOS 15.6 or later. THE PHILOSOPHY We built the clean, Sunday-first calendar clock we wanted but couldn’t find—no bloat, no premium upsells, no review begging. Just a beautifully designed tool that gives purpose to forgotten devices and starts your week the way many prefer: with Sunday leading. Your old phone has been waiting for this. Give it beauty. Give it purpose. One purchase. Lifetime use. No compromises. Made with intention and care.

Screenshots

ZenCom3 screens
Sunday First4 screens

Verdict

The call

The clearest difference is review sentiment: Sunday First at 100% against ZenCom's 40%. Sunday First also leads on update cadence (weekly vs monthly). ZenCom's advantage is price (Free vs $0.99). On ads, in-app purchases, device support 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

ZenCom is free to download; Sunday First costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ZenCom ships an update monthly, Sunday First weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
ZenCom versus Sunday First: the parameters behind the verdict, then further details
ParameterZenComSunday First
PriceFree — better$0.99
Rating—5.0 (1 ratings) — better
Positive reviews40.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyMonthlyWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size62 MB4 MB
Age rating4+4+
DeveloperZennioJoseph Bae

Customer experience

ZenCom

Written reviews5 reviews
Positive40.0%
Neutral20.0%
Negative40.0%

Sunday First

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ZenCom

No in-app purchases

None

Sunday First

No in-app purchases

Questions

Is ZenCom free?
ZenCom is free to download, with no in-app purchases.
Is Sunday First free?
Sunday First costs $0.99, with no in-app purchases.
Do ZenCom or Sunday First have ads?
Neither ZenCom nor Sunday First shows ads.
Which is updated more often, ZenCom or Sunday First?
ZenCom ships an update monthly, and Sunday First weekly. Most recently, ZenCom was updated on October 25, 2026 and Sunday First on October 24, 2026.

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