Post Matrix Scan vs Screen Ruler
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Post Matrix Scan
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Scan and decode Data Matrix codes on franked mail (DV-Freimachung 1.54, Internetmarke). FEATURES: - Scan Data Matrix codes using your camera - Import images from your photo library - Enter hex data manually - Quick Actions: Long-press the app icon to scan, import image, or enter hex code - View detailed code information including: - Sender identification (crowdsourced) - Product type (letter, parcel, etc.) - Postage value - Submission date - Customer number (EKP) - Contribute sender identifications to help the community - Support for German and English This app decodes the data encoded in postal Data Matrix franking codes, giving you insight into postage information that would otherwise be unreadable. Includes the current product catalog V60 with all postage rates. This app is not affiliated with or endorsed by Deutsche Post AG.
Screen Ruler
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PREMIUM โ 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 โ 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 โ the same 85.60 mm standard everywhere in the world โ so the tick marks on the glass line up with the tick marks on a steel rule. WHAT YOU GET โข A ring laid on the glass reads 17.3 mm across โ no squinting between the lines of a worn tape โข The mystery screw from the drawer identified before the hardware store closes: lay it down, drag end to end โข 15/16" on the readout instead of 0.94 โ fractional inches the way a tape measure speaks โข One 30-second calibration against a bank card, coin, or AA battery, and every reading after it is trued to your screen โข Snap the line to the real graduations so tiny parts land exactly on the millimeter โข Every measurement saved with its own label โ "curtain hook", "ring for Anna" โ still there when you reach the store PERFECT FOR โข Jewelry makers sizing rings, beads, and clasps without hunting for a caliper โข DIYers matching screws, washers, and drill bits to what is already in the wall โข Sewists and crafters checking buttons, seams, and hems on the spot โข 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 โ 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 โ 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
Verdict
The clearest difference is in-app purchases: Post Matrix Scan at none against Screen Ruler's 3. Post Matrix Scan also leads on update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Screen Ruler sells 3 in-app purchases, starting at $2.99 per 7 days. Post Matrix Scan asks for nothing beyond the download.
Post Matrix Scan ships an update weekly, Screen Ruler every 4 months. Both last shipped on October 25, 2026.
| Parameter | Post Matrix Scan | Screen Ruler |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 16.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Kursawe | LEAN ASIA CO., LTD |
In-app purchases
Post Matrix Scan
No in-app purchases
Screen Ruler
- Fraction Inch Weekly$2.997 Days
- Card Calibration Yearly$14.991 Year
- Ring & Screw Lifetime$29.99
Questions
Is Post Matrix Scan free?
Is Screen Ruler free?
Do Post Matrix Scan or Screen Ruler have ads?
Which is updated more often, Post Matrix Scan or Screen Ruler?
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