# Bamboo Calculator vs Kale Smart

The clearest difference is price: Kale Smart at Free against Bamboo Calculator's $4.99. Kale Smart also leads on iOS requirement (13.0 vs 15.0). Bamboo Calculator's advantage is update cadence (every 3 months vs every 18 months). On ads, in-app purchases and device support there is nothing between them.

Kale Smart is free to download; Bamboo Calculator costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bamboo Calculator ships an update every 3 months, Kale Smart every 18 months. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Bamboo Calculator | Kale Smart |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.6 (116 ratings)](https://appshunter.io/ios/app/bamboo-calculator/id654137626/reviews)** | — |
| Number of ratings | **116** | — |
| Positive reviews | 77.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 18 months |
| Monetization | Free | — |
| Size | 9 MB | 414 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [煦 张](https://appshunter.io/developer/494537607) | [Kale Kilit](https://appshunter.io/developer/1502829908) |

## What reviewers say

### Bamboo Calculator

[App page](https://appshunter.io/ios/app/bamboo-calculator/id654137626)

This app provides a digital calculator that records every step of your calculations, allowing you to easily review, modify, and recalculate previous entries. It offers basic arithmetic functions with added features like commenting and history editing for enhanced accuracy and convenience.

**Highlights:** Records every calculation step, Edit and recalculate any step, Add comments to calculations, View and edit recent history, Email and print calculation lists, Customizable layout and color

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Tape records each addition
- 👍 Can add comments/notes
- 👍 Can send calculations via email
- 👍 History is saved

**What reviewers complain about**

- 🐛 Running history not shown
- 🐛 Bluetooth keypad not accepted
- 🐛 Comment function not working
- 🐛 Lacks memory functions (M+, M-, MR, MC)
- 🐛 No copy/paste feature

**Reported bugs**

- Running history not shown alongside calculations page
- Bluetooth keypad numbers not accepted as input
- Comment function not working
- Background doesn't change
- Keyboard clicks cannot be stopped

**Requested features**

- Personalize the calculator
- Add memory functions (M+, M-, MR, MC)
- Add copy/paste feature
- Add a converter (distance, speed, mass etc.)
- Improve skins/themes


### Kale Smart

[App page](https://appshunter.io/ios/app/kale-smart/id6743434041)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bamboo Calculator free?

Bamboo Calculator costs $4.99, with no in-app purchases.

### Is Kale Smart free?

Kale Smart is free to download, with no in-app purchases.

### Do Bamboo Calculator or Kale Smart have ads?

Neither Bamboo Calculator nor Kale Smart shows ads.

### Which is updated more often, Bamboo Calculator or Kale Smart?

Bamboo Calculator ships an update every 3 months, and Kale Smart every 18 months. Most recently, Bamboo Calculator was updated on October 20, 2026 and Kale Smart on October 25, 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.*