Comparison

Billy vs Karui Notifications

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

Head to head
About

Billy

Effortlessly divide expenses with this tool. Scan receipts or manually input items, then assign them to individuals. It calculates each person's share of costs, including tax and tip, providing clear, transparent breakdowns.

Highlights
  • Scan receipt photos
  • Manually enter line items
  • Assign items to individuals
  • Calculate tax and tip share
  • Generate per-person totals
  • Create shareable PDF breakdowns
Features
Read full description

Billy makes it super easy to split bills fairly by generating individualized breakdowns of what each person ordered or shared and is responsible for. Simply scan a photo of your receipt or manually enter each line item as well as any tax and tip. Next, assign each item to the person who ordered it or the people who shared it. Billy will then generate individualized breakdowns for each person showing exactly which items they’re responsible for, their share of tax and tip, and their individual total. Billy can even generate a PDF of the entire per-person breakdown that can be easily shared, making it easy to communicate who owes what with full transparency. With Billy, payback’s a breeze.

About

Karui Notifications

This app provides a unified notification history for all your applications, allowing you to view deleted messages and filter out spam. It offers VIP contact prioritization, emergency alarms, and auto-replies for specific situations. The app processes notifications privately on your device, ensuring your data remains secure.

Highlights
  • View unsent messages
  • Unified notification history
  • VIP contact prioritization
  • Emergency alarm feature
  • Spam and promotion filtering
  • Auto-reply functionality
  • Notification translation
Read full description

Read unsent messages: when someone takes a message back, it’s still in Karui. Takes about a minute to set up. Every app’s notifications in one searchable history. Your VIP contacts always get through your Focus, from any app. Wake Me: people you choose can ring an alarm in an emergency, even when your iPhone is silenced. Spam and promotions are silenced, judged by the actual message, not the app. One-time codes are never silenced. Several quick messages from one person arrive as one notification. Auto Reply: tells your VIPs you’re driving, in a meeting, or asleep, and that you’ll reply later. Automatically translate notifications into your language. Deadline reminders: when a notification asks for something by a certain day, Karui reminds you the day before. How it works: Karui evaluates notifications privately on your iPhone, using your important contacts and calendar info, and decides whether to show them or hide them. Setup: you add the Karui Shortcut from a link, which takes about a minute and is all you need to read unsent messages. To filter spam, you also choose a Focus that keeps your other apps quiet. Karui guides you through both. Spam filtering and deadline reminders require Apple Intelligence to be supported and turned on. Viewing unsent messages works without it. Privacy: Karui runs privately on your iPhone with Apple Intelligence, using Apple’s on-device model, so your notifications stay on your device. The optional Second Opinion feature, off by default, sends a notification’s text to Apple’s Private Cloud Compute when you turn it on. Karui has no server, does not require an account, and sends zero analytics.

Screenshots

Billy4 screens
Karui Notifications3 screens

Verdict

The call

The clearest difference is update cadence: Karui Notifications at daily against Billy's every 6 weeks. Billy's advantage is iOS requirement (17.0 vs 27.0). On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Billy against 5.0 for Karui Notifications. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

UpkeepUpdate frequency

Billy ships an update every 6 weeks, Karui Notifications daily. The most recent releases landed on October 10, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Billy versus Karui Notifications: the parameters behind the verdict, then further details
ParameterBillyKarui Notifications
PriceFreeFree
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews—
Number of ratings33
Update frequencyEvery 6 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone
Requires iOS17.0 — better27.0
Further details — not scored
Size7 MB16 MB
Age rating4+4+
DeveloperJonathan SahooJustin Henry Garcia

Customer experience

Billy

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Karui Notifications

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Billy

No in-app purchases

None

Karui Notifications

No in-app purchases

Questions

Is Billy free?
Billy is free to download, with no in-app purchases.
Is Karui Notifications free?
Karui Notifications is free to download, with no in-app purchases.
Which has better reviews, Billy or Karui Notifications?
Billy and Karui Notifications are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do Billy or Karui Notifications have ads?
Neither Billy nor Karui Notifications shows ads.
Which is updated more often, Billy or Karui Notifications?
Billy ships an update every 6 weeks, and Karui Notifications daily. Most recently, Billy was updated on October 10, 2026 and Karui Notifications on October 14, 2026.

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