Comparison

QR Code Reader vs Screen Ruler

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

Head to head
About

QR Code Reader

Instantly scan QR codes and barcodes with an AI-powered engine. Identify plants, animals, and objects using your camera. Offers design tools for custom codes and intelligent history management.

Highlights
  • AI-powered QR/barcode scanning
  • Object identification (plants, animals, products)
  • Custom QR code design tools
  • Intelligent scan history
  • Privacy-focused data processing
Features
Read full description

QR Code Reader: AI Scan - Your Ultimate Scanning Companion QR Code Reader is an all-in-one solution for quickly scanning and managing QR codes and barcodes. Powerful AI Identifier identifies plants, animals, and thousands of other objects with your camera. It utilizes advanced AI-powered image recognition technology to deliver market-leading speed and intelligence, while safeguarding your data privacy. Core highlights: AI-powered scanning engine - accurate recognition for QR/barcodes, supports complex scenes such as low light, damage, and reflection. Powerful AI Identifier - Instantly identify plants, animals, products, landmarks, and thousands of other objects with your camera. Professional design tools - provides 20+ templates, custom color matching, brand LOGO embedding, and other advanced features. Intelligent history management - automatically categorizes your scans and identifications by time/type for easy retrieval. Applicable scenarios: Personal users: Quickly share Wi-Fi, contact info, and social media. Identify plants in your garden, breeds of dogs, or products online. Business applications: Product packaging, event promotion, digital marketing. Identify competitors' products and get instant market insights. Subscription service description: Unlock unlimited AI identifications and advanced features. Subscription cycle: Provide monthly ($3.99) and annual ($59.99, save 30%) plans. Automatic renewal: will automatically renew 24 hours before the end of the current cycle. Cancellation policy: Cancel at any time through iTunes account settings; no refund will be made after renewal. Start your intelligent scanning and identification journey now! Privacy Commitment: We never collect your scans or identifications, and all data processing complies with international privacy standards such as GDPR and CCPA. Your AI queries are processed anonymously to protect your identity. For the full policy, please visit the official website. Privacy Policy:https://cdelitewealth.com/pixqrprivacypolicy.html Terms of Use:https://cdelitewealth.com/pixqrtermsOfService.html

About

Screen Ruler

Features
Read full description

PREMIUM — PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. Lay a coin, a ring, a screw, or a slip of paper directly on your iPhone and read its true size. MeasureLine turns the display into an actual-size on-screen ruler — real millimeter and fraction-inch graduations drawn at 1:1 scale, matched to your exact device. Most ruler apps guess your screen density and hope for the best. MeasureLine looks up the published pixel density for your specific iPhone model, then lets you true it against a bank card — the same 85.60 mm standard everywhere in the world — so the tick marks on the glass line up with the tick marks on a steel rule. WHAT YOU GET • A ring laid on the glass reads 17.3 mm across — no squinting between the lines of a worn tape • The mystery screw from the drawer identified before the hardware store closes: lay it down, drag end to end • 15/16" on the readout instead of 0.94 — fractional inches the way a tape measure speaks • One 30-second calibration against a bank card, coin, or AA battery, and every reading after it is trued to your screen • Snap the line to the real graduations so tiny parts land exactly on the millimeter • Every measurement saved with its own label — "curtain hook", "ring for Anna" — still there when you reach the store PERFECT FOR • Jewelry makers sizing rings, beads, and clasps without hunting for a caliper • DIYers matching screws, washers, and drill bits to what is already in the wall • Sewists and crafters checking buttons, seams, and hems on the spot • Collectors verifying coin and stamp dimensions against catalog specs WHY NOT JUST USE AN AR MEASURING APP? Camera-based measuring is built for couches, not coins — useful at room scale and hopeless below a few centimeters. For small objects, nothing beats laying the part on a calibrated 1:1 ruler and reading it directly. MeasureLine never opens the camera, and it tells you plainly how each reading was derived: calibrated by you, known device, or estimate. PRIVATE BY DEFAULT No camera, no microphone, no location, no account, no ads, no analytics. Your measurements stay inside the app on your device; the only connection made is to Apple's App Store when you purchase or restore. PREMIUM (PURCHASE REQUIRED) MeasureLine Pro unlocks unlimited saved measurements and the fractional-inch readout. Pick the plan that fits: a Weekly or Yearly auto-renewing subscription, or a one-time Lifetime purchase. Put the tape measure back in the drawer — lay the part on the screen and know its size in seconds. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

Screenshots

QR Code Reader4 screens
Screen Ruler4 screens

Verdict

The call

The clearest difference is update cadence: QR Code Reader at weekly against Screen Ruler's every 4 months. QR Code Reader also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. QR Code Reader sells 4 in-app purchases, starting at $3.99 per 7 days and Screen Ruler sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

QR Code Reader ships an update weekly, Screen Ruler every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
QR Code Reader versus Screen Ruler: the parameters behind the verdict, then further details
ParameterQR Code ReaderScreen Ruler
PriceFreeFree
Rating4.9 (16 ratings) — better—
Number of ratings16 — better—
Update frequencyWeekly — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size52 MB3 MB
Age rating4+4+
DeveloperElite Wealth Co., Ltd.LEAN ASIA CO., LTD

In-app purchases

4 purchases

QR Code Reader

Subscriptions4
  • Weekly Access7 Days trial$3.997 Days
  • Monthly Access$9.991 Month
  • Limited Offer$35.991 Year
Show 1 more
  • Yearly Access$59.991 Year
3 purchases

Screen Ruler

Subscriptions2
  • Fraction Inch Weekly$2.997 Days
  • Card Calibration Yearly$14.991 Year
One-time1
  • Ring & Screw Lifetime$29.99

Questions

Is QR Code Reader free?
QR Code Reader is free to download, with in-app purchases available.
Is Screen Ruler free?
Screen Ruler is free to download, with in-app purchases available.
Do QR Code Reader or Screen Ruler have ads?
Neither QR Code Reader nor Screen Ruler shows ads.
Which is updated more often, QR Code Reader or Screen Ruler?
QR Code Reader ships an update weekly, and Screen Ruler every 4 months. Most recently, QR Code Reader was updated on October 24, 2026 and Screen Ruler on October 25, 2026.

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