RPN Calculator 48 vs BreadChef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RPN Calculator 48
This app offers a scientific calculator with Reverse Polish Notation (RPN) functionality, providing an alternative to the default calculator. It features a large, easy-to-read display, a 100-entry stack, and extensive undo/redo capabilities. Its design is inspired by classic HP calculators.
- Reverse Polish Notation (RPN)
- Scientific calculator functions
- Swipe gestures for undo/redo
- 100 entry stack
- 6 memory buttons
- State saving on exit
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RPN Calculator 48 is a polished RPN replacement for Apple's calculator app: - Same scientific functionality as Apple's calculator app* - Use swipe gestures to undo and redo operations! - Starts quickly - Large buttons - Easy-to-read display - 100 entry stack - 6 memory buttons (A-F) - 50+ levels of undo/redo - Saves state on exit The ergonomics (screen and keyboard layout) of RPN Calculator 48 were inspired by HP's outstanding 48-series calculator. RPN Calculator 48 is made by the developer of tChess (the critically acclaimed iPhone chess game) and Learn Chess (the Apple Staff Favorite e-book). * This app is not an HP 48 emulator.
BreadChef
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This companion app is designed exclusively for bread makers. It provides a variety of bread menus to choose from. Before baking, You can set the loaf weight and select your preferred crust color. All menus include detailed recipes and ingredient guides to simplify your preparation work. While the bread maker is operating, You can monitor its status in real time, Check the elapsed runtime and remaining baking time, and stay in full control of the entire baking process.
Screenshots
Verdict
The clearest difference is price: BreadChef at Free against RPN Calculator 48's $3.99. BreadChef also leads on update cadence (every 6 weeks vs every 14 months) and iOS requirement (13.0 vs 18.0). RPN Calculator 48's advantage is chart position (#196 vs unranked). On ads, in-app purchases and device support 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
BreadChef is free to download; RPN Calculator 48 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RPN Calculator 48 ships an update every 14 months, BreadChef every 6 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | RPN Calculator 48 | BreadChef |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (246 ratings) — better | — |
| Positive reviews | 95.9% of reviews | — |
| Number of ratings | 246 — better | — |
| Update frequency | Every 14 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #196 — better | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Tom Kerrigan | Shenzhen Tuoji Hongsheng International Trade Co., Ltd |
Bugs and requests
RPN Calculator 48
Reported bugs
1 issue- Display issues in landscape mode on iPad
Requested features
3 requests- Add haptic feedback for key presses
- Implement ability to recall previous calculations from stack
- Improve landscape mode support on iPad
BreadChef
Not enough reviews yet to summarise bugs or requests.
In-app purchases
RPN Calculator 48
No in-app purchases
BreadChef
No in-app purchases
