# KetaKeta vs bcRPN

KetaKeta and bcRPN are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KetaKeta ships an update every 34 months, bcRPN every 22 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | KetaKeta | bcRPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (8 ratings)](https://appshunter.io/ios/app/bcrpn/id1614744829/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 22 months** |
| Monetization | — | Free |
| Size | 1 MB | 0 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masanori Mikawa](https://appshunter.io/developer/423958400) | [Paul Wilkins](https://appshunter.io/developer/1614739840) |

## What reviewers say

### KetaKeta

[App page](https://appshunter.io/ios/app/ketaketa/id665097411)

**In-app purchases:** none


### bcRPN

[App page](https://appshunter.io/ios/app/bcrpn/id1614744829)

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

**Highlights:** Reverse Polish Notation (RPN) input, Complex number calculations, Extended precision math, Unlimited stack depth, Undo functionality (up to 10 operations)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KetaKeta free?

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

### Is bcRPN free?

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

### Do KetaKeta or bcRPN have ads?

Neither KetaKeta nor bcRPN shows ads.

### Which is updated more often, KetaKeta or bcRPN?

KetaKeta ships an update every 34 months, and bcRPN every 22 months. Most recently, KetaKeta was updated on October 26, 2026 and bcRPN on November 3, 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.*