Comparison

Calendar Timeline vs BillBuster

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

Head to head
About

Calendar Timeline

Get a clear overview of your next seven days of calendar entries and reminders. Customize your watch face with various timeline styles, text display options, and tint colors for a personalized experience.

Highlights
  • Seven-day calendar entry overview
  • Today and earlier reminder support
  • Multiple timeline styles (fixed, dynamic, moving)
  • Customizable text display
  • Favorite tint color selection
  • Watch face complications
Features
Read full description

With the Calendar Timeline App for watchOS you'll get a nice overview of the calendar entries within the next seven days – also reminder for today and earlier are supported in one single app. The app comes with a set of complications – also with a nice big complication for Modular Duo and Infograph Modular watch faces. In this complication you'll see all events and reminder of the day and got the next one display above. HUGE Update: Now you can choose your favorite style! · Fixed timeline: Fixed timespan from 6 am to 12 am · Dynamic timeline: The timeline shows the timespan from first to last event of the day with 1 hour padding each side · Dynamic timeline with actual time: Like dynamic but with the actual time marker (if before first or past last event) · Moving timeline: You will see a 4 hour timespan for the future and the timeline is moving through the day (only style where the next day do not get shown when after 6 pm and past the last event) · Also you can choose if you like the full big image on your watch face or like the next event text and actual date on top of the timeline. · You can switch on text in timeline which (mostly) fully displays your event text. · Even add you favorite tint color. With these settings you can configure your own style on your own watch face! ** IMPORTANT NOTE ** The big graph complication / widget only runs with Apple Watch Series 4 and higher (high detail watch faces like Modular Duo, Infograph Modular or Infograph Compact watch faces). MDM (company) managed devices may do not provide calendar data even when granted access since watchOS only apps cannot read MDM profiles. Since watchOS 10 the Complication maybe need some time to refresh to new settings due to Apples refresh policy. ** CANNOT RE-DOWNLOAD THE APP? ** For watchOS only apps you need to open AppStore on your watch itself and search for calendar timeline to re-download the app. Sorry for that, but that's Apples flow for watchOS only apps.

About

BillBuster

Read full description

Stop arguing about who owes what. BillBuster scans your receipt, detects every price, and lets you split the bill in seconds - right on your iPhone. HOW IT WORKS 1. Scan - Point your camera at a receipt or pick a photo from your library. BillBuster automatically detects the document and corrects perspective. 2. Tap - Prices are highlighted directly on the receipt image. Tap any price to add it to your total. No manual typing required*. 3. Split - Got 8 cocktails but only had 3? Use quantity splitting to claim your share. Dining with friends? Divide any item. KEY FEATURES - Automatic receipt detection with smart cropping and perspective correction - On-device OCR powered by Apple Vision — works offline, no internet needed - Tap prices directly on the scanned receipt image - Split items by quantity (e.g. "3 of 8") or by number of people - Add items manually when you need to - Share your bill summary with friends via any app - Supports English and Russian receipt scanning - Clean, intuitive interface with helpful onboarding tips PRIVACY FIRST All processing happens entirely on your device. No accounts. No cloud uploads. No tracking. No data collection. Your receipts stay yours. BillBuster is a utility designed to make splitting bills fair, fast, and friction-free. *In case of receipts proper visibility. In other cases you can add any item manually, or correct existing one.

Screenshots

BillBuster3 screens

Verdict

The call

The clearest difference is price: BillBuster at Free against Calendar Timeline's $1.99. Calendar Timeline's advantage is update cadence (fortnightly vs monthly) and device support (3 vs 1). On 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

BillBuster is free to download; Calendar Timeline costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calendar Timeline ships an update fortnightly, BillBuster monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Calendar Timeline versus BillBuster: the parameters behind the verdict, then further details
ParameterCalendar TimelineBillBuster
Price$1.99Free — better
Rating3.7 (61 ratings) — better—
Positive reviews61.8% of reviews—
Number of ratings61 — better—
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS15.6 — better18.6
Further details — not scored
Size3 MB1 MB
Age rating4+4+
DeveloperKevin LieserANTON SOBOLEV

In-app purchases

None

Calendar Timeline

No in-app purchases

None

BillBuster

No in-app purchases

Questions

Is Calendar Timeline free?
Calendar Timeline costs $1.99, with no in-app purchases.
Is BillBuster free?
BillBuster is free to download, with no in-app purchases.
Do Calendar Timeline or BillBuster have ads?
Neither Calendar Timeline nor BillBuster shows ads.
Which is updated more often, Calendar Timeline or BillBuster?
Calendar Timeline ships an update fortnightly, and BillBuster monthly. Most recently, Calendar Timeline was updated on November 3, 2026 and BillBuster on October 30, 2026.

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