Comparison

8051 Tutorial vs Voltsec

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

Head to head
About

8051 Tutorial

Learn 8051 microcontroller programming in C with this comprehensive tutorial. It covers architecture, assembly, and C language, featuring 11 practical projects. An optional Pro version offers additional projects with source code and advanced features.

Highlights
  • 8051 architecture review
  • 8051 assembly mnemonics
  • 8051 C language programming
  • 11 practical projects
  • Baud calculator
  • Pro version with extra projects and source code
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 language • 11 projects including LED, buzzer, key switch, external interrupt, 7-segment display, 8x8 led matrix, timer (mode 0,1 ) • Baud calculator Features in Pro • Extra 11 projects with source code • 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

Voltsec

Features
Read full description

Voltsec can help you protect and keep an eye on your home when you are away. STAY PROTECTED AND MONITOR YOUR HOME AT ALL TIMES! Why pay premium prices for home security when you don't need to? We offer all of the same services and cutting edge technology as our competitors at a third the price. SERVICES OFFERED: * SENSOR MONITORING: Be alerted whenever a sensor is triggered. System works with hard-wired doors, windows, glass break sensors, motion sensors, water sensors, fire detectors, and more! * SENSOR HISTORY See a running 30 day history of every sensor triggered in your house. * COMPLETE CUSTOMIZATION You can customize what events are triggered per sensor in your home. Want a siren to sound when your back door is opened at night, but only receive a text message if the front door is open? No problem! * SECURITY ALERTS Text message, email or audible sirens. We have you covered. * WEATHER INCORPORATION Ability to receive and decode S.A.M.E. signals from the National Weather Service and be alerted via an audible siren of dangerous weather. * AUTOMATION DIY home automation with easy instructions to follow for tapping into relay switches * DIY Our entire system is powered by Raspberry Pi and Arduino technology. * REMOTE VIEWING Monitor everything in your home from your smartphone. No additional fees. * CAMERA INCORPORATION Attach snapshots from cameras to alert notifications. See who is breaking in! * TEMPERATURE Add temperature sensors to your system and be notified if the temperature exceeds your custom thresholds. You can even see a 7 day history graphed for you! Our goal is to offer every feature available by larger security firm at a fraction of the cost. This app requires that you are an active Retinasoft Security customer and a subscriber to our Voltsec service. Visit our website for more information.

Screenshots

8051 Tutorial4 screens
Voltsec4 screens

Verdict

The call

The clearest difference is in-app purchases: Voltsec at none against 8051 Tutorial's 10. Voltsec also leads on update cadence (every 2 weeks vs every 3 months). On price, 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

Both are free to download. 8051 Tutorial sells 10 one-off in-app purchases. Voltsec asks for nothing beyond the download.

UpkeepUpdate frequency

8051 Tutorial ships an update every 3 months, Voltsec every 2 weeks. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 8 level
8051 Tutorial versus Voltsec: the parameters behind the verdict, then further details
Parameter8051 TutorialVoltsec
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better12.2
Further details — not scored
Size17 MB64 MB
Age rating4+4+
DeveloperSiu Yuen HoRetinasoft Security, LLC

In-app purchases

10 purchases

8051 Tutorial

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

Voltsec

No in-app purchases

Questions

Is 8051 Tutorial free?
8051 Tutorial is free to download, with in-app purchases available.
Is Voltsec free?
Voltsec is free to download, with no in-app purchases.
Do 8051 Tutorial or Voltsec have ads?
Neither 8051 Tutorial nor Voltsec shows ads.
Which is updated more often, 8051 Tutorial or Voltsec?
8051 Tutorial ships an update every 3 months, and Voltsec every 2 weeks. Most recently, 8051 Tutorial was updated on September 26, 2026 and Voltsec on September 17, 2026.

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