SolidGuide vs Ask Nereus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SolidGuide
This app provides water treatment professionals with quick access to product information and essential calculators for cooling tower, boiler, and closed-loop systems. It features a user-friendly catalog, equipment details, intelligent surveys, and searchable resources like spec sheets and drawings.
- User-friendly product catalog
- Comprehensive equipment information
- Intelligent surveys
- Upgraded calculators
- Searchable resources (spec sheets, drawings, case studies)
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SolidGuide, powered by AP Tech, is a valuable resource for water treatment professionals, designed to streamline access to AP Tech solid chemistry product information and calculators for cooling tower, boiler, and closed-loop applications. With SolidGuide 2.0, you will experience a smooth experience and refined resources, including: • User-friendly Product Catalog • Comprehensive equipment information • Intelligent and seamless surveys • Calculators with upgraded functionality • Searchable resources (spec sheets, drawings, case studies, and more) • Eliminate the guesswork and get SolidGuide.
Ask Nereus
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Ask Nereus: The Intelligence Layer for Water & Energy Stop searching through scattered spreadsheets and outdated manuals. Ask Nereus is the first AI-driven assistant designed specifically for the high-stakes world of cooling and water chemistry, transforming decades of "Water Dr." expertise into immediate operational foresight. Whether you are troubleshooting a conductivity spike or optimizing energy efficiency, Nereus provides the expert-backed answers you need to protect your facility’s ROI. - Verified, All-In-One Expertise Ask Nereus puts a unified Intelligence Layer at your fingertips. Get instant, verified strategy on scale, corrosion, and biological control. If your situation requires a human touch, the platform provides a direct line to elite industry experts, ensuring you always have the right support for mission-critical decisions. - Next-Step Insights Nereus doesn’t just answer questions; it guides your inquiry. Our conversational interface uses "Anticipated Questions" to act as your digital partner, suggesting the next logical steps for troubleshooting. It’s like having a senior consultant on-call 24/7, pointing out the system drifts you might have missed. - Unlimited Technical Library Access the industry’s most authoritative archive of water and energy knowledge. Our Unlimited Technical Library gives you the full story on every chemical, symptom, and system type. From deep-dive troubleshooting guides to granular chemistry manuals, the full depth of the "Water Dr." pedigree is now searchable in seconds. - Key Features: • Ask Nereus AI: Conversational assistant trained on proprietary water treatment logic. • Direct Expert Access: Connect with industry specialists for complex facility challenges. • Guided Remediation: Step-by-step instructions to return system readings to control limits. • Searchable Knowledge Base: Instant access to the full Water Dr. technical archive. • Resource Optimization: Identify "cost leaks" in water and energy usage through expert-led insights. • Experience Intelligence, Translated. Download Ask Nereus today.
Screenshots
Verdict
The clearest difference is device support: SolidGuide at 3 against Ask Nereus's —. On price, in-app purchases and iOS requirement 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.
| Parameter | SolidGuide | Ask Nereus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks | — |
| Ads | No | — |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | — |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | APTech Group | Grant Newhouse |
In-app purchases
SolidGuide
No in-app purchases
Ask Nereus
No in-app purchases









