CALC Smart Calculator ± vs NSD Nurith Security Device
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CALC Smart Calculator ±
This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.
- Real-time results
- Unit and currency conversions
- Custom functions and constants
- Shareable calculation history
- Landscape mode with tape-roll
- Gratuity calculator
Read full descriptionHide full description
Why Choose CALC Smart? ► Used by Scientists, Professionals and Students alike ► Apple-Featured: Spotlighted in Utilities and Calculate & Convert. ► User-Loved: Over 10k+ global reviews and 200M+ sessions validate its utility. ► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI. Ready for the Latest OS * Multitask on your iPad and use 3D Touch shortcuts. * Search your calculation history with Spotlight. * Widget with history integration. * Apple Watch support, complete with haptic feedback and complications. Top 10 Unique Features ① Real-time results, even with incomplete parentheses. ② Landscape mode for shareable history and tape-roll. ③ Optimized custom keyboard & widget to save space and time. ④ Fast unit and currency conversions—a swipe away. ⑤ Quick gratuity calculator with rounding options. ⑥ Display decimals as fractions with 1/999 precision. ⑦ Create unlimited custom functions and constants. ⑧ Easy expression sharing via link. ⑨ Built-in timer. ⑩ Limitless themes and layouts. Why Users Love CALC * Live Math: Natural input, even for complex calculations. * Swipe Functions: Over 60 advanced math functions just a swipe away. * History: Never lose track of your calculations. * Conversion: 21 categories, plus custom options. Additional Features * Edit on the Fly: Long-press to modify expressions and numbers. * Audio Feedback: Customize tapping sounds. * Styling: Multiple font choices. * Enterprise-Ready: EMM support with MDM & AppConfig. We Listen * Frequent updates based on your feedback. Got a suggestion? Visit our UserVoice page: https://QApps.UserVoice.com Custom Background Tip * Design your own CALC background with images from NASA’s multimedia library: https://nasa.gov/multimedia Terms & Usage * Using this app means agreeing to the standard Terms of Use. Standard Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
NSD Nurith Security Device
Read full descriptionHide full description
Applicazione per la gestione del sistema di sicurezza Nurith Security Device. Ideata e progettata per finestre Nurith ti aiuta a prevenire le effrazioni e a proteggere ciò che conta per te, da qualsiasi luogo ti trovi.
Screenshots
Verdict
The clearest difference is in-app purchases: NSD Nurith Security Device at none against CALC Smart Calculator ±'s 4. NSD Nurith Security Device also leads on iOS requirement (11.0 vs 17.0). CALC Smart Calculator ±'s advantage is update cadence (fortnightly vs every 5 months). On price, 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. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. NSD Nurith Security Device asks for nothing beyond the download.
CALC Smart Calculator ± ships an update fortnightly, NSD Nurith Security Device every 5 months. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.
| Parameter | CALC Smart Calculator ± | NSD Nurith Security Device |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.4K ratings) — better | — |
| Positive reviews | 87.3% of reviews | — |
| Number of ratings | 2.4K — better | — |
| Update frequency | Fortnightly — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | QApps LLC | IMG Sicurezza Italia S.R.L.S. |
Bugs and requests
CALC Smart Calculator ±
Reported bugs
3 issues- Calculation errors in certain scenarios
- Forced tutorial popup on every launch
- Unreliable widget functionality
Requested features
4 requests- Ability to easily clear calculation history
- Option to customize button layout
- Support for entering hexadecimal numbers
- Integration with other apps and services
NSD Nurith Security Device
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CALC Smart Calculator ±
- Quarterly Supporter$0.993 Months
- Quarterly Supporter7 Days trial$1.993 Months
- Annual Contributor$2.991 Year
Show 1 moreShow fewer
- Annual Contributor7 Days trial$5.991 Year
NSD Nurith Security Device
No in-app purchases
Questions
Is CALC Smart Calculator ± free?
Is NSD Nurith Security Device free?
Do CALC Smart Calculator ± or NSD Nurith Security Device have ads?
Which is updated more often, CALC Smart Calculator ± or NSD Nurith Security Device?
Other comparisons
