CompSci Calculator vs Calculator +ㅤ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CompSci Calculator
Perform calculations and conversions between decimal, hexadecimal, and binary bases in real-time. Ideal for programmers and computer scientists, it offers simultaneous display of values across all three modes and supports bitwise operations and complements.
- Decimal, hexadecimal, and binary base calculations
- Real-time simultaneous conversion
- Basic algebra between bases
- Selectable bit size (8, 16, 24, 32)
- Bitwise functions
- 1's and 2's complements
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CompSci Calculator lets you calculate in three different bases: decimal, hexadecimal, and binary. CompSci Calculator was developed for programmers, developers, computer engineers, and computer scientists. In real time you can do part of an equation in one base and then switch to another and complete the equation. As you type in any particular base the values in all three modes are displayed together. Because of the real time instant conversion between the bases CompSci Calculator also serves as an excellent conversion tool. Features: -basic algebra between bases -simultaneous answers in all three bases -selectable bit size: 8,16,24,32 -optional additional 16 bits of radix point precision -bitwise functions -1's and 2's complements -shift left and shift right Student and teacher feedback is very appreciated!
Calculator +ㅤ
This app simplifies math with basic, scientific, and fraction calculations. It also features a unique snap-and-scribble function to solve problems from photos. Customize your experience with themes and access a calculation history.
- Snap and Scribble Calculator
- Basic Calculator
- Scientific Calculator
- Fraction Calculator
- Currency Converter
- Calculation History
- Customizable Themes
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Calculator + App, the simplest way to make Math easy! Whether it's basic, scientific, fractions or even solving a problem you take a picture of. We've got you covered! • Snap and Scribble Calculator (NEW!) • Optimized for iPhone & iPad • Basic Calculator • Scientific Calculator • Fraction Calculator • Currrency Converter • Calculation History • Customize with Themes • Simple & Intuitive Design Introducing Rocket Apps PRO: With Rocket Apps PRO you simply subscribe once and get access to all supported Rocket Apps. The best part: we will keep adding new Apps. SUPPORT Our goal is to build the best apps in the world. You can help us by reporting bugs and requesting features via Email: help@rocketapps.com TERMS & PRIVACY https://rocketapps.com/privacy.html https://rocketapps.com/terms.html SUBSCRIPTION TERMS: The App offers an auto-renewing monthly or yearly subscription to provide you with unlimited access to all PRO Features while you maintain an active subscription. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable.
Screenshots
Verdict
The clearest difference is in-app purchases: CompSci Calculator at none against Calculator +ㅤ's 6. CompSci Calculator also leads on update cadence (every 3 days vs fortnightly) and review sentiment (63% vs 47%). Calculator +ㅤ's advantage is ratings volume (4.6K vs 42). On price, rating, ads 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. Calculator +ㅤ sells 6 in-app purchases, starting at $2.99 per 7 days. CompSci Calculator asks for nothing beyond the download.
Calculator +ㅤ holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator +ㅤ has 4.6K ratings behind it against 42, so its average is the more settled of the two. Written reviews complicate that: 63% of CompSci Calculator's written reviews are positive against 47% of Calculator +ㅤ's, so the app with the better star average is not the one people write more warmly about.
CompSci Calculator ships an update every 3 days, Calculator +ㅤ fortnightly. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.
| Parameter | CompSci Calculator | Calculator +ㅤ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (42 ratings) | 4.6 (4.6K ratings) — better |
| Positive reviews | 62.5% of reviews — better | 46.7% of reviews |
| Number of ratings | 42 | 4.6K — better |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 55 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Corey Smith | Rocket Apps GmbH |
Customer experience
CompSci Calculator
Calculator +ㅤ
Bugs and requests
CompSci Calculator
Not enough reviews yet to summarise bugs or requests.
Calculator +ㅤ
Reported bugs
3 issues- Inaccurate square root calculations
- Compatibility issues on iPad
- Decimal point not recognized
Requested features
4 requests- Negative number support
- Improved fraction calculator
- Scientific calculator layout
- Option to disable history feature
In-app purchases
CompSci Calculator
No in-app purchases
Calculator +ㅤ
- Rocket Apps PRO Weekly3 Days trial$2.997 Days
- Rocket Apps PRO Monthly3 Days trial$4.991 Month
- Rocket Apps PRO Yearly3 Days trial$9.991 Year
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- Rocket Apps PRO Offer1 Year trial$19.991 Year
- Rocket Apps PRO Yearly3 Days trial$19.991 Year
- Rocket Apps PRO Yearly3 Days trial$29.991 Year
Questions
Is CompSci Calculator free?
Is Calculator +ㅤ free?
Which has better reviews, CompSci Calculator or Calculator +ㅤ?
Do CompSci Calculator or Calculator +ㅤ have ads?
Which is updated more often, CompSci Calculator or Calculator +ㅤ?
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