Comparison

KMC Smart vs First Days

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

Head to head
About

KMC Smart

Control your smart home devices remotely from anywhere. Automate tasks, set schedules, and create custom scenes for convenience. Integrate with voice assistants and securely share access with family and friends.

Highlights
  • Remote device control
  • Create schedules
  • Set automations
  • Voice assistant integration
  • Secure family sharing
Read full description

Use the KMC Smart app to control your KMC smart devices from anywhere in the world. Create schedules, automations, and scenes to simplify your life. Easily link with Amazon Alexa and Google Assistant to control your smart devices with your voice. Simply and securely invite family or friends to help manage your smart home.

About

First Days

Features
Read full description

First Days is a simple, private newborn tracker made by a new parent, for new parents.
 Being a new parent is its own challenge, the last thing you should need to worry about is a pen-and-paper spreadsheet to track the last time they ate and for how long, when they made a dirty diaper… 
In First Days, with just a tap, you can track all the essentials; - Feeding - Diapers - Sleep And for those times when baby is being extra spicy and it’s “all hands on deck”, you can use voice commands with Siri to add events or start a session. 
Reviewing your baby’s data in the app couldn’t be simpler, with clean, interactive charts. Privacy is a fundamental human right, and First Days was built with this principle front and center. - Your data syncs to your other devices automatically through your iCloud account - No signing up for yet-another online service; your iCloud *is* your account - No advertisements, in-app usage tracking, or any other invasive nonsense - Your data is YOURS; export all your baby’s data any time to a simple CSV format In addition to everything above, First Days comes loaded with great features. To name a few: - Customizable Feeding notifications - Daily and Weekly Smart Charts - Various accessibility features - Dark/Light mode - App Icon customization - Left-handed mode - Shortcuts integration To support ongoing development, First Days offers two subscription tiers that unlock even more. For the price of a few cups of coffee a year, the Premium subscription unlocks the following: - Caregiver Sharing! Securely share your baby’s profile with other caregivers, so they can view and log events for your baby as well. Share with a simple link, and revoke access any time. - 5 baby profiles (up from 2) - Smart Daily Goals that grow with your baby, based on recommendations from the American Academy of Pediatrics (aap.org) - More than 30 days of history visualized in-app (all data remains exportable with or without a subscription) - Trends and Insights, to help you see how your baby’s metrics are changing over time at a glance A Pro subscription unlocks all of the above, plus unlimited baby profiles. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

KMC Smart4 screens
First Days4 screens

Verdict

The call

The clearest difference is in-app purchases: KMC Smart at none against First Days's 4. KMC Smart also leads on iOS requirement (12.0 vs 26.2). First Days's advantage is update cadence (every 9 days vs every 11 months). On price, ads 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. First Days sells 4 in-app purchases, starting at $0.99 per month. KMC Smart asks for nothing beyond the download.

UpkeepUpdate frequency

KMC Smart ships an update every 11 months, First Days every 9 days. Both last shipped on September 20, 2026.

Scorecard3 real differences · 7 level
KMC Smart versus First Days: the parameters behind the verdict, then further details
ParameterKMC SmartFirst Days
PriceFreeFree
Rating4.7 (6.8K ratings) — better—
Positive reviews64.2% of reviews—
Number of ratings6.8K — better—
Update frequencyEvery 11 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS12.0 — better26.2
Further details — not scored
Size167 MB45 MB
Age rating4+4+
Developer保凤 房Gabrielle Miseroy

Bugs and requests

KMC Smart

Reported bugs

4 issues
  • App freezing and becoming unresponsive
  • Devices disappearing from the app after updates
  • Inability to modify account information and settings
  • Sync issues with schedules and timers

Requested features

5 requests
  • Automatic shut-off option based on power draw
  • Dark mode for night-time use
  • Ability to set schedules with more granular control (e.g. on at sunset, off at 10 PM)
  • Easier way to manage and share access with family members
  • Export energy usage data

First Days

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

KMC Smart

No in-app purchases

4 purchases

First Days

Subscriptions4
  • First Days Premium (Monthly)$0.991 Month
  • First Days Premium$9.991 Year
  • First Days Pro (Monthly)$9.991 Month
Show 1 more
  • First Days Pro$99.991 Year

Questions

Is KMC Smart free?
KMC Smart is free to download, with no in-app purchases.
Is First Days free?
First Days is free to download, with in-app purchases available.
Do KMC Smart or First Days have ads?
Neither KMC Smart nor First Days shows ads.
Which is updated more often, KMC Smart or First Days?
KMC Smart ships an update every 11 months, and First Days every 9 days. Most recently, KMC Smart was updated on September 20, 2026 and First Days on September 20, 2026.

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