Calcy vs TechTools App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calcy
This utility app provides a comprehensive calculator with a history of previous calculations and automatic number saving. It offers scientific functions, constants, and supports both portrait and landscape orientations. A premium subscription unlocks all features for an annual fee.
- Calculation history
- Automatically save numbers
- Scientific notation
- Portrait and landscape support
- Copy result
- Scientific functions (sin, cos, tan, etc.)
- Mathematical constants (pi, e)
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Calcy - Calculator for iPad and iPhone. You can look up and easy use previous calculations. Features: - History of calculations - Automatically save numbers - Scientific notation - Portrait and landscape orientations - Copy result Functions: - sin - cos - tan - arcsin - arccos - arctan - x² - x³ - xⁿ - ²√x - ³√x - ⁿ√x - 1/x - ln - log Constants: - pi - e Premium: Subscription available for $0.99/year and provides access to all features. Your subscription will renew automatically each year and payment will be charged to your iTunes Account within 24-hours prior to the end of the current period. You can turn off auto-renewal by going to your Account Settings after purchase. Terms of Use: http://gv-apps.com/appsTermsOfUse.html Privacy Policy: http://gv-apps.com/appsPrivacyPolicy.html
TechTools App
This app provides essential tools for lighting technicians, desk operators, and network administrators. It includes calculators for DMX addressing, IP addresses, and beam calculations, along with various useful converters for technical data.
- DMX addressing wizard
- IP address and class calculator
- Color code reference
- Beam calculator
- Electrical cable color codes
- Ingress Protection Code guide
- Technical data converters
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This application aims to be in the pocket of any technician, light desk operator, or stage network administrator. You will find the most useful tools for a lighting technician or manager, a desk operator or a network administrator. - DMX addressing wizard and dipswitch - IP addresses and classes - Color code - Beam Calculator - Electrical cable colors - Ingress Protection Code As well as several converters : - percentage / decimal on 24 bits, i.e. 3 bytes (for the usual coarse/fine/ultra values on the lighting desks and in the fixtures). - CIDR notation / dotted decimal notation for network masks - hexadecimal / decimal for ART-net universes notations, for example
Screenshots
Verdict
The clearest difference is price: Calcy at Free against TechTools App's $4.00. Calcy also leads on update cadence (every 2 months vs every 25 months) and iOS requirement (9.0 vs 14.1). TechTools App's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 83%). On 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
Calcy is free to download; TechTools App costs $4.00 up front. Calcy sells 2 in-app purchases, starting at $0.99 per year. TechTools App asks for nothing beyond the download.
Calcy ships an update every 2 months, TechTools App every 25 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.
| Parameter | Calcy | TechTools App |
|---|---|---|
| Price | Free — better | $4.00 |
| Rating | 4.8 (42 ratings) — better | — |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 42 — better | — |
| Update frequency | Every 2 months — better | Every 25 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 14.1 |
| Further details — not scored | ||
| Size | 10 MB | 16 MB |
| Age rating | 4+ | 17+ |
| Developer | Vitalii Gryniuk | Noe Loridan |
Customer experience
Calcy
TechTools App
In-app purchases
Calcy
- Premium7 Days trial$0.991 Year
- Remove Ads$0.99
TechTools App
No in-app purchases









