QSpec vs StashIQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QSpec
This app helps manage gas cylinder inventory, track blend components, and monitor expiration dates for optimal process performance. It simplifies cylinder tracking and provides on-demand electronic Certificates of Analysis.
- Scan and store cylinder information
- Track blend expiration dates
- Set expiration alerts
- Retrieve and email ECOAs
- Create and email reorder lists
- Assign cylinders to locations
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Unleash the power of productivity with Linde’s QSpec. Quickly verify gas blend components and mix accuracy, and track the expiration date of your gas blends to maintain optimal process performance. Simplify cylinder management and cylinder tracking by using your phone as a mobile database of your cylinder information with QSpec. Quickly access on-demand Electronic Certifications of Analysis (ECOA) for each cylinder you scanned into your phone. QSpec Features: • Scan and store cylinder information, blend expiration dates and blend specifications in your phone. • Set alerts to monitor and prevent gas blend expiration dates to ensure process quality. • Quickly retrieve and email ECOA’s • Create, store and email your cylinder reorder list. • Assign scanned cylinders to customizable locations to assist with cylinder tracking
StashIQ
This app helps scale model builders and collectors catalog their kits, manage wish lists, and avoid duplicate purchases. It features a large database of kits, barcode scanning for instant identification, and price comparison tools.
- Catalog owned kits
- Build want lists
- Search 88,000+ kits
- Barcode scanning
- Compare retailer prices
- Avoid duplicate purchases
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StashIQ is the pocket companion for plastic scale model builders and collectors. Whether you build aircraft, armor, ships, cars, figures, or sci-fi, StashIQ helps you catalog what you own, plan what you want, and never buy a duplicate kit again. BROWSE A HUGE CATALOG Search a catalog of 88,000+ scale model kits across every major manufacturer, scale, and subject. Find the exact kit, see its details, and jump straight to retailers when you're ready to buy. SCAN TO IDENTIFY ANY KIT Point your camera at a kit's barcode and StashIQ identifies it instantly — then add it to your stash or want list in one tap. Can't find it? Share a link or add it manually, and it gets reviewed to grow the catalog for everyone. TRACK YOUR STASH Log every kit you own in one organized place. Know your collection at a glance — no more standing in a hobby shop wondering if you already have that Spitfire. BUILD A WANT LIST Keep a running wish list of the kits you're after. When you're browsing or scanning, you'll always know what's still on your list. FIND THE BEST PRICE See where to buy the kits you want and compare retailers, so you can grab the deal when it's right. MADE FOR MODELERS StashIQ was built by scale modelers who were tired of tracking their stash in spreadsheets. It's fast, focused, and designed around how hobbyists actually shop and build. SUBSCRIPTIONS StashIQ is free to start. Upgrade for higher stash and want-list limits, unlimited barcode scans, and an ad-free experience: • Collector — $0.99/month • Trader — $2.99/month • Professional — $4.99/month Prices may vary by region. Subscriptions renew automatically unless canceled at least 24 hours before the end of the period; manage or cancel anytime in your App Store account settings. Questions or feedback? Reach us at support@iqsuite.co. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.knotsoftware.com/stashiq/privacy
Screenshots
Verdict
The clearest difference is rating: QSpec at 4.0 against StashIQ's 1.0. QSpec also leads on in-app purchases (none vs 3) and ads (none vs shown). StashIQ's advantage is update cadence (fortnightly vs every 15 months) and iOS requirement (15.1 vs 18.0). On price, review sentiment, ratings volume 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. StashIQ sells 3 in-app purchases, starting at $0.99 per month. QSpec asks for nothing beyond the download.
QSpec holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
QSpec ships an update every 15 months, StashIQ fortnightly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | QSpec | StashIQ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (6 ratings) — better | 1.0 (3 ratings) |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 6 — better | 3 |
| Update frequency | Every 15 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 36 MB | 53 MB |
| Age rating | 4+ | 12+ |
| Developer | Linde GmbH | CHRISTOPHER BRYAN DECKER |
Customer experience
QSpec
StashIQ
In-app purchases
QSpec
No in-app purchases
StashIQ
- StashIQ Collector3 Months trial$0.991 Month
- StashIQ Trader3 Months trial$2.991 Month
- StashIQ Professional3 Months trial$4.991 Month









