Comparison

Dev Star vs EMF Meter

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

Head to head
About

Dev Star

Features
Read full description

Description: Dev Star, the ultimate developer tool for encryption, hashing, device information, network scanning. It combines ease of use, robust security, and seamless data sharing capabilities to keep your plaintext information under lock and key, right in the palm of your hand. *What is this* Dev Star is an utility tool with the following features: 1. Allows any user who wish to encrypt any plain text for encryption to standards like SHA-1, MD5, etc. User just type in any text in the text box and the app will encrypt it and display the hashes in the appropriate sections (MD5, SHA-, etc) After encryption, the user now has the option to copy the desired hashes to another app or share the results via the Sharing option through channels like SMS, email, WhatsApp, etc. Effortless User Experience: Dev Star boasts a user-friendly interface that ensures both beginners and experts. Diverse Hashing Algorithms: Take your pick from a wide array of encryption methods, including SHA-1, MD5, SHA-256, SHA-224, and SHA-384. Customize your hash to suit your specific needs, from basic to ultra-secure. Bulletproof Security: Rest easy knowing that your data is never transmitted or stored beyond your device. Dev Star is dedicated to maintaining your privacy and data protection. Swift Copy-Paste Functionality: Seamlessly copy and paste your hashed data into other apps or share it with friends and colleagues. Dev Star ensures smooth integration with your device's clipboard. Offline Operation: No internet connection? No problem. Dev Star operates offline, providing top-notch security and convenience wherever you go. Cross-Platform Accessibility: Dev Star ensures that you can secure your data regardless of your preferred platform. 2. Insightful Device Information: Knowledge is security. Dev Star provides detailed device insights, including device make, operating system, and type. Dive deep into your network information with access to unique identifiers like UDID and IDFA, empowering you with the knowledge to safeguard your digital identity. 3.Host Scanner Stay one step ahead with our Host Scanner features. Uncover vulnerabilities and potential threats by scanning hosts on your network. Host scanning helps you detect vulnerabilities in a host that may be picked out for attack. Vulnerability scanning is performed to identify potential weaknesses. 4. Network Service Discovery & Registration 5. PING Ping is used to test the reachability of a host on an Internet Protocol (IP) network. Ping works by sending an Internet Control Message Protocol (ICMP) Echo Request to a specified interface on the network and waiting for a reply. When a ping command is issued, a ping signal is sent to a specified address and it responds by sending an echo reply packet. 6. Port Scan An application can send traffic and listen on a particular port. The combination of an IP address and a port enables routing devices and the endpoint to ensure that traffic reaches the intended application. A port scan can provide a wealth of information about a target system. In addition to identifying if a system is online and which ports are open, port scanners can also identify the applications listening to particular ports and the operating system of the host. 7. Reverse/DNS Lookup - Find all DNS records for a domain name with this online tool. The DNS records include but are not limited to A, AAAA, CNAME, MX, NS, PTR, SRV, SOA, TXT, CAA, DS, and DNSKEY. - Performing a reverse DNS lookup allows users to find the hostname of an IP address. 8. Bluetooth Scan and Advertiser - Send advertising packets (PDUs) to broadcast data, and to allow other devices (scanners) to find & connect to them. - Searches the local area for Bluetooth-enabled devices & requests some information about each one 9. Sensor Data Accelerometer, Gyroscope, Magnetometer 10. GPS 11. NFC - Tag Read, Ndef Write, Ndef Write Lock

About

EMF Meter

Monitor electromagnetic field levels and Bluetooth exposure with real-time readings and safety zone indicators. Understand signal strength and exposure levels around you for awareness at home, work, or while traveling.

Highlights
  • Real-time EMF readings
  • Bluetooth device scanning
  • Signal strength in dBm
  • Safety zone indicators
  • Visual EMF analytics
  • Dark and light themes
Features
Read full description

EMF Meter helps you monitor electromagnetic field levels and Bluetooth exposure from one simple dashboard. Use your iPhone’s magnetometer to track EMF changes in real time, then scan nearby Bluetooth devices to understand signal strength and exposure levels around you. Track your environment at home, work, or while traveling with clear meters, safety zones, and simple exposure insights. Key Features: Real-Time EMF Meter Live electromagnetic field readings in microteslas (ΞΌT) Uses your device magnetometer Auto-calibration for local magnetic baseline Total EMF safety meter with clear status levels Bluetooth EMF Exposure Scan nearby Bluetooth devices View Bluetooth signal strength in dBm See Bluetooth exposure percentage Safety levels: SAFE, CAUTION, UNSAFE Detailed nearby device list Safety Levels SAFE: Low exposure CAUTION: Noticeable exposure UNSAFE: Strong exposure DANGER: Very high EMF levels for magnetic field readings Visual EMF Analytics Glowing animated safety background Radial meter with color-coded zones Lowest, average, and highest session readings Simple exposure tables Clean dark and light themes Perfect For: Monitoring EMF levels at home Checking workspaces and desks Comparing rooms and nearby electronics Reviewing nearby Bluetooth signal exposure Health-conscious users who want simple EMF awareness How It Works: EMF Meter uses your iPhone’s built-in magnetometer to measure electromagnetic field variation around your device. For Bluetooth, the app scans nearby wireless sources and estimates exposure from signal strength. Privacy: All readings are processed on your device. No ads, no subscriptions, and no unnecessary tracking. Note: Phone sensors are useful for awareness and comparison, but they are not a replacement for certified scientific or medical equipment. For professional safety testing, use calibrated instruments and consult qualified experts.

Screenshots

Dev Star4 screens
EMF Meter2 screens

Verdict

The call

The clearest difference is update cadence: Dev Star at every 3 days against EMF Meter's every 2 months. EMF Meter's advantage is price ($0.99 vs $1.99) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support 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

Dev Star costs $1.99 and EMF Meter $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Dev Star ships an update every 3 days, EMF Meter every 2 months. The most recent releases landed on October 4, 2026 and October 7, 2026 respectively.

Scorecard3 real differences Β· 5 level
Dev Star versus EMF Meter: the parameters behind the verdict, then further details
ParameterDev StarEMF Meter
Price$1.99$0.99 β€” better
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 3 days β€” betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetizationβ€”Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 β€” better
Further details β€” not scored
Size52 MB58 MB
Age rating4+4+
DeveloperHotsource ESDPPLST Tech

In-app purchases

None

Dev Star

No in-app purchases

None

EMF Meter

No in-app purchases

Questions

Is Dev Star free?
Dev Star costs $1.99, with no in-app purchases.
Is EMF Meter free?
EMF Meter costs $0.99, with no in-app purchases.
Do Dev Star or EMF Meter have ads?
Neither Dev Star nor EMF Meter shows ads.
Which is updated more often, Dev Star or EMF Meter?
Dev Star ships an update every 3 days, and EMF Meter every 2 months. Most recently, Dev Star was updated on October 4, 2026 and EMF Meter on October 7, 2026.

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