ReadableCalc vs Suanyi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadableCalc
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ReadableCalc is a calculator app that displays large numbers—like 3 trillion 500 billion—in readable units. It’s designed to make extremely large numbers more intuitive at a glance. Main Features • Supports four basic operations (+, −, ×, ÷) • Displays results in English numeric units for easy readability • Handles decimals and negative numbers • DEL button for deleting one character at a time (Long press to clear the entire expression) • Long press on expressions or results to copy • Tap on the “readable” result to toggle display between: • Short scale / Long scale / Kanji numerals Additional features in landscape mode: • “00”, “000”, and “0000” buttons for quickly adding zeros • “x²” and “x³” buttons for quick exponentiation Note: • Numbers exceeding 200 digits may be rounded due to calculation and display limitations. Please be cautious if you need high precision. • Short scale and Long scale support numbers up to 10^198. • Kanji numeral display supports up to 10^72. Larger numbers are shown in Arabic numerals instead.
Suanyi
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【Suanyi】The input text is already in English. It appears no translation is needed — the source text is written entirely in English (US), not Simplified Chinese. Here is the text as-is: Suanyi (算易) is a powerful, all-in-one professional calculator and utility toolbox designed to handle everyday calculations and specialized tasks with ease. Built with a clean, iOS-inspired interface, it brings together essential tools in one place. **Advanced Calculator** Perform standard and scientific calculations with a responsive, intuitive layout. Supports common arithmetic as well as more complex mathematical operations. **Unit Conversions** Convert between a wide range of units across multiple categories, including length, weight, temperature, volume, and more. Results update instantly as you type. **Financial Tools** Access built-in financial utilities for loan calculations, currency references, and other money-related tasks. Helpful for quick estimations on the go. **Utility Toolbox** Go beyond basic math with a collection of practical tools bundled into one app. Each utility is organized for quick access and straightforward use. **Clean, Intuitive Interface** Navigate effortlessly through a visually polished design inspired by modern iOS aesthetics. Every screen is crafted for clarity and ease of use. Whether you need a quick conversion, a detailed financial calculation, or a reliable everyday calculator, Suanyi provides the tools you need in a single, well-organized app. Premium Account Pricing and Terms $ 4.99/week* $ 39.99/year* *Prices shown are in U.S. dollars; actual charges may be converted to your local currency. Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and the renewal cost will be provided. Subscriptions can be managed by the user. Turning off auto-renewal may be done by going to your account settings after purchase. Cancellation of the current subscription is not allowed during the active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://yinweiwei.xyz/suanyi/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: ReadableCalc at none against Suanyi's 2. ReadableCalc also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.0). On price and ads 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
Both are free to download. Suanyi sells 2 in-app purchases, starting at $4.99 per 7 days. ReadableCalc asks for nothing beyond the download.
| Parameter | ReadableCalc | Suanyi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 28 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | YONAGARE LAB | 薇薇 殷 |
In-app purchases
ReadableCalc
No in-app purchases
Suanyi
- Weekly Core3 Days trial$4.997 Days
- Yearly Core$39.991 Year









