Archium vs Psychro Calc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Archium
Effortlessly scan, organize, and manage your documents with intelligent analysis and automatic filing. Quickly find what you need with powerful search and Siri integration. Streamline workflows using app shortcuts and automation.
- Scan and import documents
- Automatic document organization
- Intelligent search and indexing
- Siri integration for context-aware questions
- App Intents & Shortcuts for automation
- Secure on-device storage
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Archium: scan, organize & manage your documents. • Capture and manage everything effortlessly Import, scan, search, and share documents in seconds; all securely stored on your device. • Stay organized without the work Create smart Collections and let Archium automatically file documents where they belong. • Let automation do the busywork Use App Intents & Shortcuts to import attachments, sort documents, and streamline your workflows automatically. • Find what you need, instantly Intelligent analysis and indexing make every document easy to retrieve. • Ask questions, get answers, right in context Use Siri to ask about the document you’re viewing without leaving the app. • Search once, find everything Instantly search across all documents with powerful in-app search and full Spotlight support.
Psychro Calc Pro
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Psychro Calc Pro is a psychrometric calculator for HVAC engineers and technicians. Calculate dry bulb, wet bulb, dew point, relative humidity, humidity ratio, enthalpy and air density from any two independent properties, at altitudes from −500 m to 11 000 m. CALCULATION ENGINE Saturation pressure over water and ice from the Hyland–Wexler equations (ASHRAE Handbook—Fundamentals, Ch. 1), Greenspan (1976) enhancement factor, and the ASHRAE wet bulb equation. Valid from −100 °C to +200 °C. PSYCHROMETRIC CHART IN PDF REPORTS Relative humidity, enthalpy, wet bulb and specific volume lines, with automatic Standard, Low Temp and Industrial Drying modes. REPORTS & HISTORY SI and IP (Imperial) units throughout — results, chart, PDF reports and history — plus your company logo on PDF reports. FREE TRIAL, ONE-TIME PURCHASE Free to download. Try every feature free for 3 days — no payment, no sign-up. After the trial, unlock everything with a one-time purchase. No subscription, no recurring fees. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://iklimet-lab.com/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: Archium at none against Psychro Calc Pro's 2. Psychro Calc Pro's advantage is update cadence (every 4 days vs every 3 weeks) and iOS requirement (15.0 vs 18.0). On price, 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
Both are free to download. Psychro Calc Pro sells 2 in-app purchases, starting at $3.99 per month. Archium asks for nothing beyond the download.
Archium ships an update every 3 weeks, Psychro Calc Pro every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Archium | Psychro Calc Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 21 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Bazzani | Mehmet Karakas |
In-app purchases
Archium
No in-app purchases
Psychro Calc Pro
- Monthly Premium3 Days trial$3.991 Month
- Lifetime Premium$9.99









