Comparison

Complication Lab vs Chrono Vault

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

Head to head
About

Complication Lab

Personalize your Apple Watch and iPhone with custom complications and widgets. Display health data, HomeKit information, and more with extensive customization options. Create an unlimited number of unique setups to match your lifestyle.

Highlights
  • 30+ health data types
  • Apple Watch complications
  • iPhone Lock Screen widgets
  • iPhone Home Screen widgets
  • HomeKit data integration
  • Custom colors and styles
  • Unlimited complications and widgets
Features
Read full description

Complication Lab makes your Apple Watch and iPhone truly yours — now with lock screen widgets and HomeKit data support! • Pick from 30+ health data types, like heart rate, blood oxygen, and more. • Add your favorite health stats to Apple Watch Complications, iPhone Lock Screen Widgets, and iPhone Home Screen Widgets. • Bring in HomeKit data for your Home Screen Widgets. • Personalize every detail with custom colors and styles. • Stay on top of your goals in a way that feels effortless. • Create unlimited complications and widgets—mix, match, and make it yours! Complication Lab is designed to take full advantage of the latest watchOS and iOS features. Your health, activity, and HomeKit data stay on your device. We value your privacy as much as you do. Take control. Have fun. Build the perfect setup for your life.

About

Chrono Vault

Log your luxury watch collection, track wear frequency, and organize detailed vault information. This app offers insights into your rotation and includes a moon phase reference. All data is stored locally for privacy.

Highlights
  • Wear journal with editable history
  • Detailed watch vault with photos and specs
  • Encrypted serial number storage
  • Rotation and wear frequency insights
  • Built-in moon phase reference
  • Customizable themes and reminders
Features
Read full description

Chrono Vault is a luxury watch collection companion built for daily use: log what you wear, understand your rotation, and keep your vault details organized—even when you’re offline. Wear journal Switch watches with minimal friction. Confirm when you’re still wearing yesterday’s piece, backfill missed days, and edit history when plans change. Optional flows handle same-day changes the way you actually wear watches. Your vault Add watches with photos, specs, straps, complications, and condition. Archive pieces you’ve moved on from, or soft-remove them while keeping history for insights. Privacy-minded serials All information is stored locally. Serial numbers can be stored encrypted on device. Turn on Face ID (or Touch ID) to reveal them when needed. Insights See rotation mix, 30-day wear frequency, and which watches haven’t been on your wrist lately—with thresholds you control. Moon phase reference A built-in moon reference helps you line up complications and calendar quirks—handy when you’re setting or checking a watch. Make it yours Choose themes, set a home timezone reference while traveling, and use gentle reminders so logging stays a habit.

Screenshots

Complication Lab4 screens
Chrono Vault3 screens

Verdict

The call

The clearest difference is rating: Chrono Vault at 5.0 against Complication Lab's 3.5. Chrono Vault also leads on in-app purchases (none vs 3). Complication Lab's advantage is ratings volume (4 vs 1). On price, update cadence, 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. Complication Lab sells 3 in-app purchases, starting at $0.99 per month. Chrono Vault asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chrono Vault holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Complication Lab versus Chrono Vault: the parameters behind the verdict, then further details
ParameterComplication LabChrono Vault
PriceFreeFree
Rating3.5 (4 ratings)5.0 (1 ratings) — better
Positive reviews22.5% of reviews—
Number of ratings4 — better1
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS17.6 — better18.0
Further details — not scored
Size12 MB59 MB
Age rating4+4+
DeveloperOlberryKenny Nguyen

In-app purchases

3 purchases

Complication Lab

Subscriptions2
  • Monthly Subscription$0.991 Month
  • Yearly Subscription7 Days trial$9.991 Year
One-time1
  • Lifetime Subscription$29.99
None

Chrono Vault

No in-app purchases

Questions

Is Complication Lab free?
Complication Lab is free to download, with in-app purchases available.
Is Chrono Vault free?
Chrono Vault is free to download, with no in-app purchases.
Which has better reviews, Complication Lab or Chrono Vault?
Chrono Vault is rated higher. Complication Lab averages 3.5 out of 5 from 4 ratings, while Chrono Vault averages 5.0 from 1 ratings.
Do Complication Lab or Chrono Vault have ads?
Neither Complication Lab nor Chrono Vault shows ads.
Which is updated more often, Complication Lab or Chrono Vault?
Complication Lab ships an update every 3 weeks, and Chrono Vault every 3 weeks. Most recently, Complication Lab was updated on October 21, 2026 and Chrono Vault on October 16, 2026.

Other comparisons