ToptiCalc Optics Calculator vs HT CIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ToptiCalc Optics Calculator
This application provides essential calculations and conversions for laser optics, covering areas like spectral unit conversion, Fabry-Perot calculations, and Gaussian beam focusing. It's designed to be a convenient tool for quick access to important optical formulas.
- Spectral Unit Conversion
- Fabry-Perot Calculations
- Gaussian Beam Focusing
- Refraction at a Plane Surface
- Short Laser Pulse Calculations
- Pulse Train Calculations
- Decibel Conversion
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ToptiCalc - The Handy Optics Calculator for Your Smartphone! With this smart helper you’ll have the most important calculations and conversions from different areas of laser optics always at hand. The app offers some frequently used calculations from different areas of laser optics like Spectral Unit Conversion, Fabry-Perot Calculations, Focussing of a Gaussian Beam, Refraction at a Plane Surface, Short laser pulses, Pulse trains and Decibel Conversion.
HT CIS
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HTCIS, your conference assistance. HTCIS App is a new conference tool developed by HUITONG Academic Conference System, which is available for online registration, check-in on-site and program checking. HUITONG Academic Conference System, developed by Chinese Laser Press Co., Ltd., is a multifunctional conference management system, which will offer customized service for conference organizer, such as homepage design, online registration, submission and review, online program, on-site management, data search, analysis and export, enormous users and App support. 「3 Core Functions」 1.Online registration: register for a conference by your phone. 2.Check-in on-site: check-in by the QE code. 3.Program: follow program updating, collect and alert the talks you are interested in.
Screenshots
Verdict
The clearest difference is update cadence: HT CIS at every 3 weeks against ToptiCalc Optics Calculator's every 41 months. HT CIS also leads on iOS requirement (9.0 vs 16.6). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
ToptiCalc Optics Calculator ships an update every 41 months, HT CIS every 3 weeks. The most recent releases landed on October 7, 2026 and October 26, 2026 respectively.
| Parameter | ToptiCalc Optics Calculator | HT CIS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 41 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Toptica Photonics AG | Chinese Laser Press Co., Ltd. |
In-app purchases
ToptiCalc Optics Calculator
No in-app purchases
HT CIS
No in-app purchases
Questions
Is ToptiCalc Optics Calculator free?
Is HT CIS free?
Do ToptiCalc Optics Calculator or HT CIS have ads?
Which is updated more often, ToptiCalc Optics Calculator or HT CIS?
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