Computer Science Calculations vs Onii
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Computer Science Calculations
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Computer Science Calculations is the ultimate application developed for every IT professional, network technician, programmer, or computer science enthusiast. If you spend a lot of time in front of your computer for study or work, this app represents the ideal support to speed up daily technical operations and improve overall efficiency, optimizing your workflow and increasing your productivity. You will find a complete suite of tools divided into thematic areas, designed to eliminate the need to consult external tables or complex websites. ALL THE FEATURES AT YOUR DISPOSAL: NUMBER SYSTEMS AND LOGIC: Perform byte conversions and manage number bases such as decimal, binary, octal, and hexadecimal. The app supports the representation of negative numbers (sign and magnitude, one's complement, two's complement), bitwise operations, bit shift, and bit rotation. NETWORKS AND INFRASTRUCTURE: Advanced tools for network management such as IPv4 Subnet calculator, PoE calculator, server RAID configuration, data transfer time estimation, and Wake On Lan (WOL) function for remote device startup. SECURITY AND DATA: Protect your systems with secure password generation and strength verification. Manage Base64 and URL encoding and decoding, generate random numbers, and create security hashes using MD5, SHA, and CRC-32 algorithms. RESOURCES AND STANDARDS: Quickly access ASCII tables and character encodings, HTML entities, Material Design colors, and Unix Timestamp conversions. It also includes cheat sheets for Unix commands, ISO 639-1 language codes, and ISO 3166-1 country codes, as well as RGB, HEX, and CMYK color converters. TEXT MANIPULATION: Quick tools for counting characters, words, and lines, reverse text, uppercase/lowercase conversion, whitespace removal, remove accents, and string replacement. It also supports string to binary, ASCII, and hexadecimal conversion. Simplify your daily technological challenges. Download Computer Science Calculations now and transform the way you work.
Onii
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Onii helps you take control of your time and structure your days with ease. Plan tasks, track habits, and manage events โ all perfectly synced with your Apple Calendar. With its clean design and smart features, Onii becomes your personal focus space. A reimagined Pomodoro, intelligent reminders, and minimal distractions keep you moving forward with clarity. Key features: - Completely redesigned interface - Task, habit, and event management - Native Apple Calendar synchronization - Built-in and redesigned Pomodoro - Smart notifications for better timing Onii 1.2 โ smoother, smarter, and more focused than ever.
Screenshots
Verdict
The clearest difference is ads: Onii at none against Computer Science Calculations's shown. Computer Science Calculations's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.2). On price, update cadence and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Computer Science Calculations sells 3 in-app purchases, starting at $0.99 per 3 months and Onii sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Computer Science Calculations ships an update monthly, Onii every 3 weeks. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.
| Parameter | Computer Science Calculations | Onii |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 weeks โ better |
| Ads | Yes | No โ better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 15.0 โ better | 18.2 |
| Further details โ not scored | ||
| Size | 26 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Egal Net di Ettore Gallina | Nicolas Ducamp |
In-app purchases
Computer Science Calculations
- PRO Version (3 months)$0.993 Months
- PRO Version (1 year)7 Days trial$2.491 Year
- PRO Version (Lifetime)$11.99
Onii
- Premium - 1 mois3 Days trial$3.991 Month
- Premium - 1 an3 Days trial$24.991 Year
Questions
Is Computer Science Calculations free?
Is Onii free?
Do Computer Science Calculations or Onii have ads?
Which is updated more often, Computer Science Calculations or Onii?
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