Calculator vs RCL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator
This app offers a comprehensive scientific calculator with multiple modes, including algebraic, scientific, conversions, and logic calculations. It features a user-friendly design with large buttons and remembers your progress if interrupted.
- Algebraic entry
- Scientific calculations
- Unit conversions (length, area, volume, etc.)
- Logic calculator (binary, octal, decimal, hex)
- 10 memory registers
- Wide number range support
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Here's a full-featured scientific calculator for your iPhone or iPod touch. It's really six calculators in one, with new button sets exposed by a tap on the tab bar. Features are important, but it's the little things that count, right? Little things like a design that looks like it belongs on your iPhone; big, easy to press buttons; a delete key in case you hit the wrong one; and picking up right where you left off if you are interrupted by a phone call--even in the middle of entering a number. Features: 1. Algebraic entry 2. Scientific calculations 3. Conversions for - Length - Area - Volume - Temperature - Mass - Speed 4. Logic calculator supporting base 2, 8, 10 and 16 5. 10 memory registers 6. Numbers range from about 1e-313 to 1e308 7. Displays 14 significant digits
RCL
This app faithfully recreates the TI-57 programmable calculator, offering its full scientific functions and programming capabilities. It includes a user manual, sample programs, and features like turbo speed and alphanumeric display.
- TI-57 recreation
- Scientific functions
- Programming capabilities
- User manual included
- Sample programs
- Turbo speed option
- Alphanumeric display option
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RCL-57 is a complete and faithful recreation of the TI-57, one of the first programmable calculators. RCL-57 implements all the scientific functions and programming capabilities of the TI-57. In addition, it includes: * A complete user manual * Sample programs including Lunar Lander * Optional turbo speed and alphanumeric display * Listings of steps, registers and log * Saving and loading of programs * Sharing and importing of programs
Screenshots
Verdict
The clearest difference is price: RCL at Free against Calculator's $1.99. RCL also leads on review sentiment (100% vs 60%). On update cadence, 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
RCL is free to download; Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calculator ships an update every 11 months, RCL every 14 months. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.
| Parameter | Calculator | RCL |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 months — better | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Byte Works, Inc. | Paul Novaes |
Customer experience
Calculator
RCL
In-app purchases
Calculator
No in-app purchases
RCL
No in-app purchases
