Millimeter Pro vs Unit Plus Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
Read full descriptionHide 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
Unit Plus Converter
Easily convert between numerous units and metrics with this intuitive application. It offers over 100 common conversion units across various categories, presented in a simple and elegant interface.
- Over 100 conversion units
- Multiple categories
- Area conversion
- Data conversion
- Length conversion
- Temperature conversion
- Weight-mass conversion
Read full descriptionHide full description
Unit Converter is a useful app that lets you easily convert from various units into lots of others. It includes over 100 common conversion units across multiple categories. Its simple and beautifully designed unit converter which make it altogether different from others. It has the following unit conversions: *Area *Data (bit, byte, kilobyte, megabyte, etc.) *Fuel-milage *Length *Power *Pressure *Speed *Temperature *Time (days, weeks, hours, etc.) *Volume (dry and wet) *Weight-mass We want to make this app as your daily goto item. Please send as much feedback and suggestions to help us improve and keep us motivated. You can send from within the app or email us gosalapps@gmail.com.
Screenshots
Verdict
The clearest difference is price: Unit Plus Converter at Free against Millimeter Pro's $3.99. Unit Plus Converter also leads on review sentiment (100% vs 58%) and rating (4.7 vs 4.4). On update cadence, ads, in-app purchases and monetization model 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
Unit Plus Converter is free to download; Millimeter Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Unit Plus Converter holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Unit Plus Converter has 564 ratings behind it against 108, 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 100% of Unit Plus Converter's.
Millimeter Pro ships an update every 4 months, Unit Plus Converter every 5 months. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.
| Parameter | Millimeter Pro | Unit Plus Converter |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.4 (108 ratings) | 4.7 (564 ratings) — better |
| Positive reviews | 57.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 108 | 564 — better |
| Update frequency | Every 4 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | VisTech.Projects LLC | Harjot Singh |
Customer experience
Millimeter Pro
Unit Plus Converter
Bugs and requests
Millimeter Pro
Not enough reviews yet to summarise bugs or requests.
Unit Plus Converter
Requested features
2 requests- Kilogram to stones/pounds conversion
- Fractions of an inch down to 1/32” as a choice for conversion to mm
In-app purchases
Millimeter Pro
No in-app purchases
Unit Plus Converter
No in-app purchases
Questions
Is Millimeter Pro free?
Is Unit Plus Converter free?
Which has better reviews, Millimeter Pro or Unit Plus Converter?
Do Millimeter Pro or Unit Plus Converter have ads?
Which is updated more often, Millimeter Pro or Unit Plus Converter?
Other comparisons















