Comparison

8051 Tutorial Pro vs Thread Pitch Calculator

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

Head to head
About

8051 Tutorial Pro

Features
Read full description

This app is a 8051 tutorial based on C language. It is suitable for hobbyist or engineering students. Features • 8051 architecture review • 8051 asm mnemonics • 8051 C lanugage • 22 projects including LED, buzzer, key switch, external interrupt, 7-segment display, 8x8 led matrix, timer (mode 0,1,2), 4x4 keypad, piano, serial debug monitor, 16x2 LCM, i2c eeprom, 93c46, SPI eeprom etc • Baud calculator Features in Pro • Projects with complete uVision project and document • Create C source code of timer mode 0,1,2 • Data pattern code generator of 8x8 LED matrix All product names, trademarks and registered trademarks are property of their respective owners. All company, product and service names used in this app are for identification purposes only. Use of these names,trademarks and brands does not imply endorsement.

About

Thread Pitch Calculator

Easily measure the thread pitch of various screws and bolts directly on your device's screen. This utility app calibrates automatically to your screen width for accurate measurements of metric, US, NPT, and BSPT threads.

Highlights
  • Measure thread pitch on screen
  • Automatic screen width calibration
  • Supports metric thread sizes
  • Supports US thread sizes
  • Supports NPT and BSPT threads
  • Measures metric screw sizes
Features
Read full description

Measure and identify screw and thread pitch quickly and easily with Thread Pitch Calculator. No more guessing with paper, rulers, or physical thread gauges. Simply open the app, place the screw or thread against the screen, and compare it with the on-screen thread patterns. The app automatically calibrates to your screen size for accurate measurement. Whether you're working with metric screws, US threads, or pipe threads, Thread Pitch Calculator helps you find the right thread size and pitch in seconds. Key Features Measure thread pitch directly on your phone screen Automatic screen calibration Easy-to-use thread measurement interface Compare screws with visual thread patterns Metric thread sizes US thread sizes NPT (National Pipe Taper) threads BSPT (British Standard Pipe Taper) threads Metric screw sizes Quick reference for common thread specifications Simple and convenient tool for workshops, DIY, repair, and maintenance Supported Thread Types Metric Threads Identify common metric thread pitches and sizes. US Threads Check common US thread sizes and thread pitches. NPT Threads Reference National Pipe Tapered thread sizes. BSPT Threads Check British Standard Pipe Taper thread sizes. Metric Screw Sizes Compare and identify common metric screw dimensions. Perfect For DIY projects Mechanics Engineers Workshops Hardware professionals Maintenance and repair Machine shops Home improvement Screw and fastener identification Stop carrying a ruler or guessing the thread pitch. Use Thread Pitch Calculator as a convenient thread measurement and reference tool wherever you work.

Screenshots

8051 Tutorial Pro4 screens
Thread Pitch Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Thread Pitch Calculator at none against 8051 Tutorial Pro's 10. 8051 Tutorial Pro's advantage is update cadence (every 6 months vs every 51 months) and price ($1.99 vs $4.99). On ads, device support and iOS requirement 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

8051 Tutorial Pro costs $1.99 and Thread Pitch Calculator $4.99 up front. 8051 Tutorial Pro sells 10 one-off in-app purchases. Thread Pitch Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

8051 Tutorial Pro ships an update every 6 months, Thread Pitch Calculator every 51 months. The most recent releases landed on September 16, 2026 and September 29, 2026 respectively.

Scorecard3 real differences · 7 level
8051 Tutorial Pro versus Thread Pitch Calculator: the parameters behind the verdict, then further details
Parameter8051 Tutorial ProThread Pitch Calculator
Price$1.99 — better$4.99
Rating—1.8 (4 ratings) — better
Positive reviews—16.7% of reviews
Number of ratings—4 — better
Update frequencyEvery 6 months — betterEvery 51 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size17 MB2 MB
Age rating4+4+
DeveloperSiu Yuen HoBhavinkumar Satashiya

In-app purchases

10 purchases

8051 Tutorial Pro

One-time10
  • 18B20$0.99
  • 24L01$0.99
  • MPU6050$0.99
Show 7 more
  • OLED$0.99
  • ESP8266$1.99
  • DHT22 project$1.99
  • DHT11 project$1.99
  • BMP180 project$1.99
  • BMP280 project$1.99
  • automation (BT) project$1.99
None

Thread Pitch Calculator

No in-app purchases

Questions

Is 8051 Tutorial Pro free?
8051 Tutorial Pro costs $1.99, and also offers in-app purchases.
Is Thread Pitch Calculator free?
Thread Pitch Calculator costs $4.99, with no in-app purchases.
Do 8051 Tutorial Pro or Thread Pitch Calculator have ads?
Neither 8051 Tutorial Pro nor Thread Pitch Calculator shows ads.
Which is updated more often, 8051 Tutorial Pro or Thread Pitch Calculator?
8051 Tutorial Pro ships an update every 6 months, and Thread Pitch Calculator every 51 months. Most recently, 8051 Tutorial Pro was updated on September 16, 2026 and Thread Pitch Calculator on September 29, 2026.

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