NVS Viewer vs Cuspart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NVS Viewer
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NVS ViewerはNVS-114Tのカメラ映像視聴アプリです。 【機能】 ・NVS-114T 1台あたり最大6台のカメラから1台の映像を選択して視聴 ・最大100件の接続先が登録可能 ・視聴映像を画像としてスナップショット保存可能 ・デジタルズーム対応(最大5倍) 【特長】 ・セキュアな通信経路でNVS-114Tのカメラ映像を視聴可能 ・DDNS(ダイナミックDNS)などのサービスを使用せずにアクセス可能
Cuspart
This app offers a professional-grade calculator with advanced math functions, a constants library, and intuitive history tracking. Customize your experience with various color themes and an accessible interface designed for ease of use.
- Basic and advanced arithmetic
- Roots, powers, and logarithms
- Constants library (π, e)
- Operation history
- Customizable color themes
- Accessible UI design
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Cuspart: myCal is a clear, focused calculator for everyday math, scientific calculations, and unit conversions. From a quick calculation to a complex expression, myCal keeps everything readable in one polished workspace. SWITCH MODES WITHOUT THE FRICTION Move between Standard, Scientific, and Convert modes whenever you need them. Start in Scientific mode with advanced tools ready to use, or return to your last workspace instantly. CALCULATE WITH CLARITY * Add, subtract, multiply, and divide with confidence. * Build expressions with parentheses and proper order of operations. * Use percentages, negative values, memory keys, and quick delete. * Keep the full expression visible while you type. * Read results clearly with smart number formatting. * Fix mistakes without restarting your calculation. SCIENTIFIC TOOLS, READY TO GO * Trigonometric functions with degrees and radians. * Square, cube, and arbitrary powers. * Square, cube, and nth roots. * Logarithms including log10, log2, and ln. * Exponentials including 10^x and e^x. * Reciprocals, factorials, absolute values, floor, ceiling, and sign functions. * Hyperbolic functions for advanced calculations. * Instant access to π and e. CONVERT UNITS IN ONE PLACE Convert everyday and technical units without leaving the calculator. * Length, area, weight, volume, temperature, and speed. * Data, energy, time, pressure, force, and power. * Frequency, fuel economy, voltage, resistance, and illuminance. * Concentration and other useful categories. * Currency conversion with clear rate status when rates are available. YOUR HISTORY, AT A GLANCE Keep every expression and result within reach. Review previous calculations, copy useful answers, delete individual entries, or clear your history whenever you want a fresh start. MAKE IT YOURS Choose a look and feel that fits your workflow. * Light, dark, or system appearance. * Calculator fonts designed for clear numbers. * Multiple color palettes. * Custom key colors with Pro. * Large touch targets and readable typography. OPTIONAL PRO FEATURES Upgrade to Pro for custom key colors, additional font styles, exclusive color presets, offline access, and an ad-free workspace — all with a one-time purchase. BUILT FOR FOCUS Cuspart: myCal combines the familiarity of a traditional calculator with the power of a scientific workspace. Whether you're studying, working, converting units, or handling everyday math, myCal keeps your calculations clear, fast, and organized.
Screenshots
Verdict
The clearest difference is in-app purchases: NVS Viewer at none against Cuspart's 4. NVS Viewer also leads on ads (none vs shown) and iOS requirement (12.0 vs 16.0). Cuspart's advantage is update cadence (every 4 months vs every 60 months). On price 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. Cuspart sells 4 in-app purchases, starting at $0.99 per month. NVS Viewer asks for nothing beyond the download.
NVS Viewer ships an update every 60 months, Cuspart every 4 months. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.
| Parameter | NVS Viewer | Cuspart |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 60 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | キング通信工業株式会社 | Mustafa Tolga DALBUDAK |
In-app purchases
NVS Viewer
No in-app purchases
Cuspart
- 1 Month Subscription$0.991 Month
- 3 Month Subscription$2.993 Months
- 12 Month Subscription$9.991 Year
- Remove Ads$2.49









