Comparison

SolarCalc ROI vs DeviceShelf

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

SolarCalc ROI

Features
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SolarCalc ROI helps you calculate how much you can save by going solar β€” in minutes. Pick your location on the map, enter your monthly electricity bill, and get a detailed solar ROI estimate including: β€’ System size & panel count β€’ Annual energy production β€’ Annual savings in your local currency β€’ Installation cost estimate β€’ Payback period β€’ 25-year COβ‚‚ savings FEATURES - Apple Maps integration for precise location selection - 50+ countries supported with local electricity prices - Advanced options: roof direction, shading, panel quality, battery storage - 25-year projection chart - Comparison mode: compare different system sizes - Regional solar data - PDF report generation - Price quote creator - Share results with clients Built by the team behind solarcalc.net - your free online solar calculator. Visit us at solarcalc.net for more solar tools and resources.

About

DeviceShelf

Features
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DeviceShelf shows you every device on your network β€” what it is, what it exposes, and whether it's a risk. No account, no telemetry, no hidden cloud. Your network data stays on your device. WHAT YOU GET β€’ See every device: name, vendor, type, IP and open ports, discovered over Bonjour and port probing. β€’ Security at a glance: a risk score with plain-language findings β€” open Telnet, exposed SMB, weak defaults, aging TLS certificates, known CVEs. β€’ Diagnostics that answer real questions: ping, speed test, DNS lookup, and your public IP and ISP. β€’ Ask the built-in assistant about your network in plain language. Bring your own AI key β€” nothing is sent unless you turn it on. β€’ Watch devices come and go, with per-device uptime. PAIR WITH YOUR COMPUTER OR SERVER iOS limits how deeply an app can scan a network. Connect to DeviceShelf on your Mac or PC, or to a 24/7 DeviceShelf server, and this app pulls the full inventory β€” every device's vendor, name and MAC β€” plus its security report and timeline. One license covers desktop, server and mobile. PRIVATE BY DESIGN No sign-up. No tracking. Nothing leaves your device unless you enable an optional feature. License checks work offline. OPTIONAL AI, CLEAR CONSENT If you configure a cloud AI provider, DeviceShelf asks before sending anything. The consent screen shows the provider, endpoint, and exact data categories first: your question or selected network/device signals such as IP addresses, pseudonymised MAC addresses, host/device names, vendors, open ports, service banners, certificate names, OS hints and security findings. Local providers such as Ollama do not need cloud consent. Try it free for 7 days. One-time purchase, no subscription.

Screenshots

SolarCalc ROI3 screens
DeviceShelf4 screens

Verdict

The call

The clearest difference is in-app purchases: SolarCalc ROI at none against DeviceShelf's 3. DeviceShelf's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. DeviceShelf sells 3 one-off in-app purchases. SolarCalc ROI asks for nothing beyond the download.

UpkeepUpdate frequency

SolarCalc ROI ships an update every 2 weeks, DeviceShelf every 2 days. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

Scorecard2 real differences Β· 4 level
SolarCalc ROI versus DeviceShelf: the parameters behind the verdict, then further details
ParameterSolarCalc ROIDeviceShelf
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS14.0 β€” better15.0
Further details β€” not scored
Size22 MB27 MB
Age rating4+4+
DeveloperMuhammed CelikChristof MΓΌller

In-app purchases

None

SolarCalc ROI

No in-app purchases

3 purchases

DeviceShelf

One-time3
  • DeviceShelf Mobile$17.99
  • DeviceShelf Complete Upgrade$34.99
  • DeviceShelf Complete$49.99

Questions

Is SolarCalc ROI free?
SolarCalc ROI is free to download, with no in-app purchases.
Is DeviceShelf free?
DeviceShelf is free to download, with in-app purchases available.
Do SolarCalc ROI or DeviceShelf have ads?
Neither SolarCalc ROI nor DeviceShelf shows ads.
Which is updated more often, SolarCalc ROI or DeviceShelf?
SolarCalc ROI ships an update every 2 weeks, and DeviceShelf every 2 days. Most recently, SolarCalc ROI was updated on October 19, 2026 and DeviceShelf on October 11, 2026.

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