PerfectCalc vs ServeIt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PerfectCalc
This app offers both basic and advanced scientific calculations with a user-friendly interface. It allows for real-time editing of calculations, history management, and theme customization.
- Basic and scientific calculations
- Trigonometric and inverse trigonometric functions
- Mathematical functions (abs, ceil, floor, round)
- Real-time calculation editing
- Historical records management
- Bright and dark theme switching
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An all-in-one calculation app that brings together a standard calculator, scientific calculator, and a wide range of practical tools. It supports basic and scientific calculations, fractions, currency conversion, unit conversion, base conversion, BMI, custom formulas, financial calculations, and other everyday needs - all in one app. [CORE FEATURES] Standard & Scientific Calculator Perform addition, subtraction, multiplication, division, percentages, calculations with parentheses, powers, trigonometric functions, inverse trigonometric functions, and more. Access custom formulas directly from the Home screen to reduce repetitive input. Freely edit calculations, move the cursor, and double-tap to select the current number. Fraction Calculator Enter and calculate fractions with results displayed in fractional form - useful for school, exams, and everyday tasks. Currency Converter Convert between multiple currencies, precious metals, and cryptocurrencies for travel, online shopping, investing, and everyday reference. Unit & Base Converters Convert common units and number bases for study, work, programming, and everyday use. BMI Calculator Quickly calculate body mass index for everyday health tracking. Custom Formulas Use built-in formulas or create reusable custom formula templates to make repeated calculations faster. Financial Calculators Calculate compound interest and recurring investments for common financial planning needs. History & Editable Calculations View, favorite, delete, and recalculate previous results. Edit calculations directly, so a typo never means starting over. Light & Dark Mode Switch between light and dark themes. [CONTACT US] Email: kingstar19900516@gmail.com QQ Group: 835604202
ServeIt
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Servlet turns your phone into a local file server in seconds. Start a server with one tap and access your files from any device on the same Wi-Fi network using a browser. No cables, no cloud uploads — just fast and simple local file sharing. Perfect for transferring photos, documents, and other files between your phone, computer, and tablet. Key Features One-Tap Local Server Instantly start a file server on your device Automatically generate a local IP address Customizable port support Access from Any Device Open files from a browser on your computer Works with phones, tablets, and PCs Fast transfer within your local network Easy File Import Add images from your Photos library Import files from the Files app Supports multiple file formats QR Code Connection Generate a QR code for quick access Scan and open the server instantly Real-Time Server Status Clear server activity indicator Start or stop the server anytime Privacy First Files stay on your device No cloud uploads Secure local network transfer Servelt requires a subscription for full access to the app. Servelt offers a $3.99/month auto-renewing subscription, a $39.99/year auto-renewing subscription. These prices may vary by country. Terms for Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy:https://tinybrief.app/privacy-policy
Screenshots
Verdict
The clearest difference is update cadence: ServeIt at every 4 days against PerfectCalc's fortnightly. 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. PerfectCalc sells 1 one-off in-app purchase and ServeIt sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
PerfectCalc ships an update fortnightly, ServeIt every 4 days. The most recent releases landed on September 17, 2026 and September 10, 2026 respectively.
| Parameter | PerfectCalc | ServeIt |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (342 ratings) — better | — |
| Positive reviews | 94.1% of reviews | — |
| Number of ratings | 342 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 | 13.0 |
| Further details — not scored | ||
| Size | 76 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | 明星 王 | 志煌 谢 |
Bugs and requests
PerfectCalc
Reported bugs
2 issues- Forced 5-star review for history function
- Odd language issue with copied calculations
Requested features
2 requests- Dark mode option
- More customization options
ServeIt
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PerfectCalc
- Calculator Pro$12.99
ServeIt
- Monthly$3.991 Month
- Yearly$39.991 Year









