# RPN vs ChicTimer

The clearest difference is rating: RPN at 5.0 against ChicTimer's 1.0. RPN also leads on in-app purchases (none vs 1). ChicTimer's advantage is update cadence (every 3 months vs every 9 months) and device support (3 vs 1). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. ChicTimer sells 1 one-off in-app purchase. RPN asks for nothing beyond the download.

RPN holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

RPN ships an update every 9 months, ChicTimer every 3 months. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | RPN | ChicTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rpn-70-hd/id436127144/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/chictimer/id896960377/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 14 MB | 19 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CuVee Software](https://appshunter.io/developer/424873503) | [Kasidej Khunvattanakarn](https://appshunter.io/developer/896960380) |

## What reviewers say

### RPN

[App page](https://appshunter.io/ios/app/rpn-70-hd/id436127144)

This app provides a photo-realistic simulation of a rare 1974 financial calculator, offering full functionality for loan amortization, saving plans, and depreciation. It features an authentic design with animated keys and an optional live register view.

**Highlights:** Photo-realistic design, Live register view, Animated keys with sound, Full HP-70 function implementation, Cut/copy/paste display value, Built-in manual with examples

**Features:** macOS Compatibility

**In-app purchases:** none


### ChicTimer

[App page](https://appshunter.io/ios/app/chictimer/id896960377)

This app offers a classic timer with a user-friendly interface and multiple colorful designs. It allows for simultaneous use of up to 12 timers, each independently configurable and movable. Notifications are provided even when the app is in the background.

**Highlights:** 12 colorful timer designs, Realistic chicken timer effect, Up to 12 simultaneous timers, Independent timer configuration, Background notifications, Portrait and landscape support (iPad)

**Features:** macOS Compatibility

**In-app purchases (1)**

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


## Frequently asked questions

### Is RPN free?

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

### Is ChicTimer free?

ChicTimer is free to download, with in-app purchases available.

### Which has better reviews, RPN or ChicTimer?

RPN is rated higher. RPN averages 5.0 out of 5 from 3 ratings, while ChicTimer averages 1.0 from 2 ratings.

### Do RPN or ChicTimer have ads?

Neither RPN nor ChicTimer shows ads.

### Which is updated more often, RPN or ChicTimer?

RPN ships an update every 9 months, and ChicTimer every 3 months. Most recently, RPN was updated on October 21, 2026 and ChicTimer on October 19, 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.*