Comparison

Millimeter Pro vs Site Checker

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

Head to head
About

Millimeter Pro

This app transforms your device into a versatile measuring tool. It allows for precise measurements of length, area, diameter, and angles using the touchscreen. Easily split objects into equal parts and switch between millimeters and inches for your convenience.

Highlights
  • Touchscreen ruler and tape measure
  • Measure length, area, diameter, and angles
  • Split objects into equal parts
  • Supports millimeters and inches
  • Estimate radius
  • Thread pitch gauge
Features
Currently charting
Read full description

App blog: https://goo.gl/da6LdZ Millimeter Pro is an easy-to-use and helpful measurement tool for iPhone or iPad. It uses a touch screen as a ruler or tape measure to make quick measurements, split objects into equal parts, measure object ratio (W/H), measure area, estimate diameter and angles, and split circular objects into equal parts. Place an object on the screen and simply touch and move rulers to measure it. You can measure in different units: MILLIMETERS or INCHES. Features: - mm and inch units - 2D measurements: vertical and horizontal rulers - area calculation - ratio calculation (W/H) - split linear and circular objects into equal parts - shows the length and angle of each part - disable/enable touch screen (freeze feature) - diameter or radius estimation - angle measure with Protractor / Goniometer mode - Thread pitch gauge for TPI and pitch size measurements Use this app in different areas to measure small objects that fit within your phone or tablet screen: jewelry, rings, stones, gem, beads, screws, bolts, buttons, nuts, knitting needles, knitting patterns, washers, insects, mosaic tile, hooks, frame wrap angle, etc. Enjoy the app and Thank you for your interest and support! VisTech.Projects Team

About

Site Checker

This app provides web tool utilities to monitor network connection stability and website availability. It includes HTTP tests for API checks and a downtime detector to verify site access globally. Useful for system administrators and web developers to troubleshoot DNS and ISP connection issues.

Highlights
  • WiFi and mobile data connection monitoring
  • HTTP test for REST API checks
  • Downtime detector for site access
  • Works on 3G/4G/5G/LTE and WiFi
  • Supports VPN and proxy servers
  • Troubleshoots DNS and ISP connection issues
Read full description

Site Checker — a set of web tool utilities for monitoring the stability of your WiFi and mobile data connection. This application has a built-in HTTP test for REST API checks and a downtime detector to verify site access from different countries. The app works on 3G/4G/5G/LTE and WiFi networks, like home and corporate ones. You can use the app even with a VPN or proxy server on your router. With just a couple of clicks, check if your favorite sites are down right now. This is a must-have web tool for system administrators and web developers, helping to solve problems with DNS and test connections on your ISP's nodes. Get the app today and check your network speed and website availability!

Screenshots

Millimeter Pro4 screens
Site Checker3 screens

Verdict

The call

The clearest difference is rating: Millimeter Pro at 4.4 against Site Checker's 3.4. Millimeter Pro also leads on chart position (#186 vs unranked) and ratings volume (109 vs 12). Site Checker's advantage is update cadence (every 3 weeks vs every 4 months) and price ($1.90 vs $3.99). On review sentiment, 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

Millimeter Pro costs $3.99 and Site Checker $1.90 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Millimeter Pro holds the better App Store score, 4.4 against 3.4. That said, the two scores are not equally well evidenced: Millimeter Pro has 109 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 58% of Millimeter Pro's written reviews are positive against 50% of Site Checker's.

UpkeepUpdate frequency

Millimeter Pro ships an update every 4 months, Site Checker every 3 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard6 real differences · 5 level
Millimeter Pro versus Site Checker: the parameters behind the verdict, then further details
ParameterMillimeter ProSite Checker
Price$3.99$1.90 — better
Rating4.4 (109 ratings) — better3.4 (12 ratings)
Positive reviews57.9% of reviews — better50.0% of reviews
Number of ratings109 — better12
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank#186 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size24 MB8 MB
Age rating4+4+
DeveloperVisTech.Projects LLCTamara Dudarenko

Customer experience

Millimeter Pro

All ratings108 ratings
Positive85.2%
Neutral3.7%
Negative11.1%
Written reviews38 reviews
Positive57.9%
Neutral5.3%
Negative36.8%

Site Checker

All ratings12 ratings
Positive58.3%
Neutral0.0%
Negative41.7%
Written reviews8 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Millimeter Pro

No in-app purchases

None

Site Checker

No in-app purchases

Questions

Is Millimeter Pro free?
Millimeter Pro costs $3.99, with no in-app purchases.
Is Site Checker free?
Site Checker costs $1.90, with no in-app purchases.
Which has better reviews, Millimeter Pro or Site Checker?
Millimeter Pro is rated higher. Millimeter Pro averages 4.4 out of 5 from 109 ratings, while Site Checker averages 3.4 from 12 ratings.
Do Millimeter Pro or Site Checker have ads?
Neither Millimeter Pro nor Site Checker shows ads.
Which is updated more often, Millimeter Pro or Site Checker?
Millimeter Pro ships an update every 4 months, and Site Checker every 3 weeks. Most recently, Millimeter Pro was updated on October 24, 2026 and Site Checker on October 27, 2026.

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