Caesar Shift Plus vs Calcu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caesar Shift Plus
Easily encrypt and decrypt messages using the classic Caesar cipher method. This tool allows you to substitute letters in a secret message with others a fixed number of positions away in the alphabet.
- Encrypt messages
- Decrypt messages
- Caesar cipher method
- Substitution cipher
- Simple interface
Read full descriptionHide full description
A Caesar cipher is one of the simplest encryption methods. It is a substitution cipher that involves replacing each letter of the secret message with a different letter of the alphabet which is a fixed number of positions further in the alphabet. With this app you can decrypt and encrypt messages with Caesar method.
Calcu
This app provides advanced logarithmic calculations and explanations, covering equation solving, Taylor series, digit-by-digit computation, and integral definitions. It also simplifies expressions, solves complex logarithmic equations, and includes a virtual slide rule.
- Solves logarithmic equations for y, x, and a
- Explains Taylor series for log_e(x)
- Illustrates digit-by-digit log_10(x) computation
- Explains log_e definition via integrals
- Simplifies logarithmic expressions
- Calculates and graphs complex logarithms
- Includes virtual slide rule
Read full descriptionHide full description
Calcu-Logarithm performs calculations and helps user understand logarithms on advanced level: 1. Solves equation "y = log_a(x)” for “y”, “x”, and “a”, with relevant graphs. 2. Explains and illustrates how to compute log_e (x) from Taylor series. 3. Explains and illustrates how to compute log_10 (x) digit by digit (based on M.Goldberg algorithm). 4. Explains and provides proof of log_e definition as the integral of x inverse. 5. Simplifies logarithmic expressions and solves logarithmic equations with polynomials of up to 20th degree. 6. Includes virtual slide rule for multiplication and division. 7. Calculates, explains, and graphs logarithms of complex numbers. Developers welcome any feedback, please write to us at graphmath@aol.com. Please check out our other Math apps.
Screenshots
Verdict
The clearest difference is price: Calcu at Free against Caesar Shift Plus's $0.99. Calcu also leads on rating (5.0 vs 4.0) and update cadence (every 3 days vs every 7 months). Caesar Shift Plus's advantage is iOS requirement (13.0 vs 15.0). On ratings volume, 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
Calcu is free to download; Caesar Shift Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calcu holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Caesar Shift Plus ships an update every 7 months, Calcu every 3 days. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.
| Parameter | Caesar Shift Plus | Calcu |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 7 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 10 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | a Rausa | Yuri Morozov |
Customer experience
Caesar Shift Plus
Calcu
In-app purchases
Caesar Shift Plus
No in-app purchases
Calcu
No in-app purchases
