PrefixCalc vs CalcLink
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrefixCalc
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This calculator supports Metric‑prefix such as kilo and giga. The calculator supports quetta (10^30) and quecto (10^-30), which were added in 2022. Main Functions ・Support for arithmetic operations (+ - ×÷) ・Results converted to Japanese numerals for display ・Delete one character at a time with the "DEL" button Press and hold to delete all ・Press and hold to copy calculation formulas and results English (Short scale, Long scale) and Chinese numerals can also be selected. ・Calculations that include prefixes such as 2M+1k, 2M×1μ, etc. Note: ・Very large numbers that exceed 200 digits may be rounded off for display and calculation purposes. Please note this when precision is required. ・Short scale and Long scale are currently supported up to 10^198. ・Kanji notation is supported up to 10^72. If it is greater than the number, it will be displayed in Arabic numerals.
CalcLink
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1. Key Features CalcLink - Calculator for Windows is a calculator app that lets you quickly send calculation results from your iPhone or iPad to a Windows PC, and also use your device as a numpad-style input helper. Instead of stopping at calculation, CalcLink helps you enter results directly into Windows or use your iPhone or iPad as a simple input pad. It is useful for spreadsheets, accounting software, browser forms, and other PC tasks that involve frequent numeric input. 2. Overview CalcLink works as a standard calculator, and by connecting with the Windows app Koyomi-Link, it can send calculation results and numpad input to your Windows PC. You can choose between Direct Input and Copy and Paste sending modes. You can also add Enter or Tab after sending a value, making repetitive data entry smoother. Even without Windows integration, CalcLink can be used as a regular calculator and scientific calculator. 3. Feature List - Standard calculator - Scientific calculator - Tax included / tax excluded calculation - Memory functions - Send calculation results to Windows - Direct Input / Copy and Paste sending modes - Enter / Tab after sending - Numpad-style Windows input helper - Tab / Enter / Backspace / Delete / arrow keys - Copy / Paste operations - Japanese and English support 4. Feature Details ■ Standard Calculator CalcLink provides a simple and easy-to-use calculator for everyday arithmetic. It also supports tax included / tax excluded calculation and memory functions, making it useful for shopping, office work, and accounting tasks. ■ Scientific Calculator In addition to standard calculation, CalcLink includes a scientific calculator mode. You can switch modes within the same app when you need more advanced calculations. ■ Send Results to Windows By connecting with Koyomi-Link, CalcLink can send calculation results to your Windows PC. You can choose between Direct Input and Copy and Paste sending modes. ■ Enter / Tab After Sending CalcLink can automatically add Enter or Tab after sending a calculation result. This is useful when you want to send a value and move to the next cell or input field in spreadsheets, accounting software, or forms. ■ Numpad-Style Windows Input Helper The numpad tab lets you send numbers and symbols to Windows. It also supports Tab, Enter, Backspace, Delete, arrow keys, Copy, and Paste, allowing your iPhone or iPad to work as a simple numpad and input helper. 5. Summary CalcLink - Calculator for Windows is designed for users who want to calculate at hand and quickly enter the result into a Windows PC. You can use it as a regular calculator, and enable Windows integration or numpad input support when needed. It is recommended for anyone who wants to make numeric input during PC work smoother and faster. Note: Windows integration requires the separate Windows app Koyomi-Link.
Screenshots
Verdict
The clearest difference is iOS requirement: PrefixCalc at 12.0 against CalcLink's 17.0. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PrefixCalc | CalcLink |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 28 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | YONAGARE LAB | Satoshi Sakuma |
In-app purchases
PrefixCalc
No in-app purchases
CalcLink
No in-app purchases
Questions
Is PrefixCalc free?
Is CalcLink free?
Do PrefixCalc or CalcLink have ads?
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