Comparison

App Debug Assistant vs 0Day

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

Head to head
About

App Debug Assistant

A comprehensive toolkit for developers and testers to streamline debugging. It offers device information, sensor data, Bluetooth debugging, file transfer, and QR code tools for efficient workflow and bug reporting.

Highlights
  • Device information viewer
  • Sensor data readings
  • Bluetooth BLE scanning and connection
  • Wireless file transfer
  • Real-time text synchronization
  • QR code scanner and generator
  • APNs push notification testing
Features
Read full description

App Debug Assistant is a versatile toolkit designed for developers and testers, streamlining your daily debugging workflow. 【Device Info】 • IDFA Viewer - Instantly access the device advertising identifier with one-tap copy for attribution testing • Device Details - View comprehensive device info including model, screen, memory, storage, battery, and system version 【Sensor Debugging】 • Motion & Attitude - Accelerometer, gyroscope, magnetometer, and fused device-motion data with live multi-axis readings for motion- and AR-related debugging • Environment & Activity - Barometer (pressure and relative altitude), pedometer, and motion-activity recognition for health- and context-aware features • Location & Heading - GPS-style location plus true and magnetic heading for maps and compass-style behavior • Device & Ambient Status - Proximity, screen brightness, device orientation, thermal state, and microphone level metering to troubleshoot hardware, sensors, and permissions 【Bluetooth Debugging】 • Device Scan - Discover nearby BLE peripherals with live name, identifier, and RSSI to quickly find test targets • Connect & GATT - Browse services and characteristics after connecting; read, write, and subscribe to notifications to verify protocols and payloads • Debug Helpers - Hex data display and one-tap UUID copy to speed up firmware and app integration 【Special Tools】 • Text Sync - Real-time text synchronization between your phone and computer over LAN • File Transfer - Wirelessly transfer files and photos via browser on the same WiFi network • APNs - Quickly test the push notification function, supporting both P12 and P8 certificate formats for easy debugging of push services. 【QR Code Tools】 • QR Scanner - Scan with camera or recognize from photos, quickly open links or copy content • QR Generator - Create QR codes from any text or URL for easy sharing 【Use Cases】 • Ad SDK Testing - Quick IDFA access for attribution verification • Device Debugging - Sync test URLs and config parameters to your phone • Bug Reporting - Copy device info for complete issue reports • Cross-device Workflow - Fast file and text transfer between devices • Sensor Debugging - Verify raw readings and permission flows on real hardware to narrow down sensor-related issues faster • Bluetooth Debugging - Scan and connect to BLE peripherals to validate GATT services, characteristics, and data exchange 【Secure & Reliable】 • Local data storage to protect your privacy and sensitive information Simple. Efficient. Essential for developers.

About

0Day

Receive immediate alerts for zero-day vulnerabilities, supply chain attacks, and compromised packages relevant to your specific technology stack. Get early warnings before they hit the news cycle, enabling proactive security measures.

Highlights
  • Zero-day vulnerability alerts
  • Supply chain attack notifications
  • Compromised package warnings
  • Stack-aware filtering
  • Early warning system
  • Push notifications
  • Full alert archive
Features
Read full description

Most security feeds bury you in CVEs that have nothing to do with what you ship. 0Day cuts through that. Zero-days, supply chain attacks, compromised packages, active exploits: filtered to your exact stack, the moment they break. Pick your stack once during onboarding: npm, PyPI, Docker, Kubernetes, React, Rails, OpenSSL, whatever you use and the feed shows you only what touches your tech. No noise. No irrelevant advisories. Just what matters to you. The goal is lead time. Know about a compromised package, a poisoned build pipeline, or an actively exploited CVE before it reaches your CI, your production deployment, or your customers. Before the news cycle. Before the stragglers patch. Before you're the one scrambling at 2am. WHY 0DAY - Privacy-first — no analytics, no tracking, no third-party SDKs - Early warnings before the news cycle — the moment a threat breaks, you know - Stack-aware filtering — see only threats that hit the tools you use - Multi-source corroboration — duplicates merged, sources ranked by tier - Curated, not firehose — every alert is tied to a specific component - Full archive — searchable history of every threat that hit your stack HOW IT WORKS Every item in the feed goes through a three-stage lifecycle so you can tell the difference between "we're watching this" and "this is real, act now": CANDIDATE — A single source has reported an incident. In the pipeline, being correlated, not yet corroborated. EARLY WARNING — Either an authoritative research outlet flagged it, or a second independent source has confirmed the same incident. Pushed to your device immediately — this is the lead time the product is built for. CONFIRMED — Two or more authoritative sources agree, or three independent sources total. High-confidence state you can act on without double-checking. INSIDE THE FEED Each alert gives you a plain-English summary, affected components with version ranges, recommended action, CVE and GHSA identifiers with tappable links to the upstream advisories, and a timeline of when each source reported the incident. PRIVACY We collect only what we need to run the service: your email for sign-in, your stack selections, your notification preferences, and your device token for push delivery. No analytics. No crash reporting SDKs. No advertising identifiers. No cross-app tracking. All data is stored in the European Union on AWS infrastructure. You can delete your account and all associated data instantly from Settings. SUBSCRIPTION 0Day Pro unlocks the full experience: early warning alerts, push notifications, full archive access, remediation guidance, and stack filtering. All new users get a free 14-day trial — no payment required to get started. After the trial, subscribe to keep full access. Offered as a monthly or annual subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in iOS Settings → Apple ID → Subscriptions. Terms of Use: https://0day.lous.nl/terms Privacy Policy: https://0day.lous.nl/privacy

Screenshots

App Debug Assistant4 screens
0Day4 screens

Verdict

The call

The clearest difference is rating: 0Day at 5.0 against App Debug Assistant's 3.7. 0Day also leads on ads (none vs shown) and review sentiment (100% vs 80%). App Debug Assistant's advantage is in-app purchases (none vs 2) and iOS requirement (16.0 vs 18.0). On price, ratings volume, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 0Day sells 2 in-app purchases, starting at $3.99 per month. App Debug Assistant asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

0Day holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 80% of App Debug Assistant's written reviews are positive against 100% of 0Day's.

UpkeepUpdate frequency

App Debug Assistant ships an update weekly, 0Day every 5 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

Scorecard7 real differences · 4 level
App Debug Assistant versus 0Day: the parameters behind the verdict, then further details
ParameterApp Debug Assistant0Day
PriceFreeFree
Rating3.7 (3 ratings)5.0 (2 ratings) — better
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings3 — better2
Update frequencyWeeklyEvery 5 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
Best chart rank—#195 — better
DevicesiPhoneiPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size32 MB10 MB
Age rating4+4+
DeveloperJunjie LiRichard Lous

Customer experience

App Debug Assistant

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

0Day

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

App Debug Assistant

No in-app purchases

2 purchases

0Day

Subscriptions2
  • 0Day Pro7 Days trial$3.991 Month
  • 0Day Pro1 Month trial$29.991 Year

Questions

Is App Debug Assistant free?
App Debug Assistant is free to download, with no in-app purchases.
Is 0Day free?
0Day is free to download, with in-app purchases available.
Which has better reviews, App Debug Assistant or 0Day?
0Day is rated higher. App Debug Assistant averages 3.7 out of 5 from 3 ratings, while 0Day averages 5.0 from 2 ratings.
Do App Debug Assistant or 0Day have ads?
App Debug Assistant shows ads; 0Day does not.
Which is updated more often, App Debug Assistant or 0Day?
App Debug Assistant ships an update weekly, and 0Day every 5 days. Most recently, App Debug Assistant was updated on November 9, 2026 and 0Day on November 5, 2026.

Other comparisons