Smart Meter vs ScreenRuler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Meter
This augmented reality app allows you to measure objects and distances using your device's camera. Simply tap to set start and end points to get accurate measurements in meters or inches. Save your measurements and images for future reference.
- Augmented reality measurement
- Accurate ruler
- Save measurements
- Save measurement images
- Easy to use interface
- Measure in meters and inches
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Ruler app, using the AR technology to help you on your daily needs to measure any object. All what you need to do: - Click start - Follow line - Click stop - Save image of all measurements Features: - Accurate Ruler - Save Measurement - Easy to use - Simple app متر\مسطرة لكل احتياجاتك اليومية , سهل و بسيط كل ما تحتاجه هو تحديد نقطة البداية و النقر على الشاشة حتى تصل الى نقطة النهاية و سيعطيك المسافة بالمتر و الانش المميزات: - استخدام الواقع الافتراضي - قياس بالسانتيميتر - قياس غير محدود Easy and simple app to measure distance between to points
ScreenRuler
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Turn your iPhone into a precise ruler — no physical ruler needed. ScreenRuler uses your device's actual pixel density (PPI) to display accurate centimeter and inch graduations directly on screen. Place any object alongside the ruler and drag two handles to measure it instantly. HOW TO MEASURE 1. Place the object next to the left edge of the screen 2. Drag the top and bottom handles to align with the object's edges 3. Read the live measurement displayed between the handles FEATURES • Accurate ruler based on your iPhone's true screen PPI • cm mode: 1 mm graduations, labeled every 1 cm • inch mode: 1/8 inch subdivisions, labeled every 1 inch • Two drag handles for precise range selection • Live measurement display — updates as you drag • Switch between cm and inch instantly • DPI calibration using a standard credit card (short edge 5.4 cm) for extra precision • Haptic feedback at every 1 cm / 1 inch boundary • Dark and light theme • Works offline — no internet required • Collapsible control panel — stays out of the way CALIBRATION Every iPhone screen has a slightly different physical size. Use the built-in DPI calibration with a standard credit card to fine-tune accuracy to your exact device. Perfect for quick measurements when you don't have a ruler on hand.
Screenshots
Verdict
The clearest difference is ads: Smart Meter at none against ScreenRuler's shown. Smart Meter also leads on update cadence (monthly vs every 7 months) and iOS requirement (11.0 vs 15.1). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Smart Meter ships an update monthly, ScreenRuler every 7 months. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.
| Parameter | Smart Meter | ScreenRuler |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (10 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Monthly — better | Every 7 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 14 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Ahmad Almutairi | pilyeong heo |
In-app purchases
Smart Meter
No in-app purchases
ScreenRuler
No in-app purchases









