AZoOptics vs RIDS calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AZoOptics
This app provides a comprehensive resource for optics and photonics, offering news, supplier information, and equipment details. It's designed for professionals, students, and anyone interested in the field, making complex information easily accessible.
- Optics and Photonics news
- Supplier directory
- Equipment information
- Latest industry updates
- Easy access to information
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The AZoOptics App from www.AZoOptics.com - The A to Z of Optics, represents the world of Optics / Photonics in the palm of your hand. Designed for engineers, designers, scientists, students and the layman, indeed anyone with an interest in Optical / Photonic products, issues, equipment, applications and the latest news. Locate optical suppliers from around the world, browse or search thousands of optics news items and keep up to speed with the latest in related equipment. Simple quick, convenient and easy access to find the answers to your optics questions.
RIDS calc
This app accurately calculates properties for air, water, seawater, and sugars. It uses detailed, published formulations for precise results across various conditions, including solids level and density of corn syrup.
- Accurate property calculations
- Supports air, water, seawater, and sugars
- Calculates solids level and density
- Uses detailed published formulations
- State-of-the-art accuracy
- Includes detailed air and expanded water properties
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RIDS simplifies the accurate calculation of several properties of Air, Water, Seawater, and Sugars of various composition. A typical use of RIDS is to calculate the solids level and density of a corn syrup from the refractive index. RIDS employs detailed, published formulations that cover a wide range of conditions while maintaining state-of-the-art accuracy over that range. Detailed air properties and expanded water properties by IF97 international standard
Screenshots
Verdict
The clearest difference is rating: RIDS calc at 5.0 against AZoOptics's 3.0. AZoOptics's advantage is ratings volume (5 vs 1) and iOS requirement (8.0 vs 13.0). On price, update cadence, ads and in-app purchases 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.
RIDS calc holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: AZoOptics has 5 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 10 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | AZoOptics | RIDS calc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (5 ratings) | 5.0 (1 ratings) — better |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 10 months | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 6 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | AZoNetwork | Wayne Henderson |
Customer experience
AZoOptics
RIDS calc
In-app purchases
AZoOptics
No in-app purchases
RIDS calc
No in-app purchases
