# Kalkulilo (Calculator) vs Apple A Day App

The clearest difference is price: Apple A Day App at Free against Kalkulilo (Calculator)'s $2.99. Apple A Day App also leads on in-app purchases (none vs 1) and review sentiment (88% vs 76%). Kalkulilo (Calculator)'s advantage is update cadence (every 2 months vs every 20 months). On rating, ratings volume, ads and monetization model there is nothing between them.

Apple A Day App is free to download; Kalkulilo (Calculator) costs $2.99 up front. Kalkulilo (Calculator) sells 1 one-off in-app purchase. Apple A Day App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Kalkulilo (Calculator) against 4.5 for Apple A Day App. Both are backed by a comparable volume of ratings — 29 and 41 respectively. Written reviews are what separate them: 76% of Kalkulilo (Calculator)'s written reviews are positive against 88% of Apple A Day App's.

Kalkulilo (Calculator) ships an update every 2 months, Apple A Day App every 20 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Kalkulilo (Calculator) | Apple A Day App |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.5 (29 ratings)](https://appshunter.io/ios/app/kalkulilo-calculator/id286091993/reviews) | **[4.5 (41 ratings)](https://appshunter.io/ios/app/apple-a-day-app/id941093249/reviews)** |
| Number of ratings | 29 | **41** |
| Positive reviews | 75.8% of reviews | **88.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 9 MB |
| Requires iOS | 16.0 | **9.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Clauss](https://appshunter.io/developer/286091996) | [nWeave](https://appshunter.io/developer/464751539) |

## What reviewers say

### Kalkulilo (Calculator)

[App page](https://appshunter.io/ios/app/kalkulilo-calculator/id286091993)

This app offers a versatile calculator with multiple modes, including scientific, bitwise, statistical, trigonometric, base conversion, and time calculations. It features a simple mode with large buttons and customizable interface. Widgets for notification center and Apple Watch are also included.

**Highlights:** Scientific calculator functions, Bit/integer mode with logical operations, Statistical calculations, Base/radix conversion (2-36), Time value calculations, Customizable interface, Apple Watch app and widget

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 🚀 Excellent, powerful calculator
- 👍 Variety of modes and number systems
- 👍 Intuitive and easy to use
- 👍 Highly functional for engineers, programmers, and students
- 👍 Replaces physical scientific calculators

**What reviewers complain about**

- 🐛 Stopped working after OS update
- 💰 Ads introduced after being paid app
- 👎 Buttons too small, hard to press
- 🔍 Confusing color scheme and UI

**Reported bugs**

- Number doesn't transfer correctly when switching between modes
- Negative exponents not displayed correctly in engineering notation
- Loses calculation history when changing modes

**Requested features**

- Add calculus, linear algebra, and probability functions
- Implement a 'repeated equals' function
- Add a backspace/delete button
- Allow customizing color scheme
- Improve Apple Watch integration


### Apple A Day App

[App page](https://appshunter.io/ios/app/apple-a-day-app/id941093249)

This app helps you remember and consistently perform recurring lifestyle tasks that are important for your well-being. It focuses on habits and routines rather than one-off to-do items, encouraging a better daily routine.

**Highlights:** Recurring task reminders, Focus on lifestyle habits, Daily routine planning, Encourages consistent actions, Improve daily life

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kalkulilo (Calculator) free?

Kalkulilo (Calculator) costs $2.99, and also offers in-app purchases.

### Is Apple A Day App free?

Apple A Day App is free to download, with no in-app purchases.

### Which has better reviews, Kalkulilo (Calculator) or Apple A Day App?

Apple A Day App is rated higher. Kalkulilo (Calculator) averages 4.5 out of 5 from 29 ratings, while Apple A Day App averages 4.5 from 41 ratings.

### Do Kalkulilo (Calculator) or Apple A Day App have ads?

Neither Kalkulilo (Calculator) nor Apple A Day App shows ads.

### Which is updated more often, Kalkulilo (Calculator) or Apple A Day App?

Kalkulilo (Calculator) ships an update every 2 months, and Apple A Day App every 20 months. Most recently, Kalkulilo (Calculator) was updated on November 6, 2026 and Apple A Day App on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*