Comparison

Dev Calc Pro (Hex Dec Oct Bin) vs AVR Tutorial Pro

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

Head to head
About

Dev Calc Pro (Hex Dec Oct Bin)

This app converts numbers between binary, octal, decimal, and hexadecimal bases on a single screen. It also displays color hex codes and RGB values. It is designed for developers and does not include scientific or unit conversion functions.

Highlights
  • Binary, octal, decimal, hexadecimal conversion
  • Color hex code and RGB display
  • Large 19-digit decimal display
  • Conversion reset toggle
  • No ads (Pro Version)
Features
Read full description

The Calculator for Developer ※What is for Pro Version: No Ad & Full Screen Developer Calc includes the following features: ■ Binary, octal, decimal, and hexadecimal in one screen ■ Color Hex code, RGB in one screen ■ The maximum value : 0x0FFF FFFF FFFF FFFF ■ The minimum value : 0xF000 0000 0000 0000 ■ The large 19-digit display of decimal ■ Conversion reset ON/OFF The following features are not included: (Just For Simple) ■ Scientific: trigonometric, hyperbolic, and logarithmic functions ■ Conversion: length, area, volume, speed, weight, temperature; unit arithmetic

About

AVR Tutorial Pro

Features
Read full description

This app is a AVR tutorial based on ATMEGA16 C language. It is suitable for hobbyist or engineering students. Learning AVR mcu is difficult. The learning curve is steep. The process including reading datasheet, writing code, building prototypes and troubleshooting. The most possible errors are the setting wrong value of registers. Now, AVR tutorial Pro is the solution. The code wizard allow you to set the timer, UART, ADC, interrupt and peripherals by just a few clicks in setting. The proven C source code is generated automatically. Though the code wizard is based on ATMEGA16 mcu, it is easy to port to other ATMEGA mcu since the source code is highly structured Features • AVR architecture review • AVR asm mnemonics & C language • 21 demo projects including LED, buzzer, key switch, lcm16x2, ADC, etc • Code wizard for UART, timer, interrupt, ADC and external peripherals Features in PRO only • Support I2C eeprom 24C01 (128B) ~ 24C512 (64kB) • Support SPI eeprom 25010 (128B) ~ 25M02 (256kB) • Extra demo projects including led matrix 16x16, I2C eeprom, SPI eeprom • Code wizard for I2C eeprom, SPI eeprom, LCM128x64, etc Atmel® and AVR® are registered trademarks or trademarks of Atmel Corporation or its subsidiaries, in the US and/or other countries. This application is not related or affiliated in any way Atmel Corporation.

Screenshots

Dev Calc Pro (Hex Dec Oct Bin)4 screens
AVR Tutorial Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Dev Calc Pro (Hex Dec Oct Bin) at none against AVR Tutorial Pro's 10. AVR Tutorial Pro's advantage is price ($1.99 vs $2.99). On update cadence, 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

Dev Calc Pro (Hex Dec Oct Bin) costs $2.99 and AVR Tutorial Pro $1.99 up front. AVR Tutorial Pro sells 10 one-off in-app purchases. Dev Calc Pro (Hex Dec Oct Bin) asks for nothing beyond the download.

UpkeepUpdate frequency

Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, AVR Tutorial Pro every 4 months. The most recent releases landed on July 18, 2026 and August 22, 2026 respectively.

Scorecard2 real differences · 8 level
Dev Calc Pro (Hex Dec Oct Bin) versus AVR Tutorial Pro: the parameters behind the verdict, then further details
ParameterDev Calc Pro (Hex Dec Oct Bin)AVR Tutorial Pro
Price$2.99$1.99 — better
Rating3.5 (2 ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better9.0
Further details — not scored
Size6 MB33 MB
Age rating4+4+
DeveloperQQ TSUBASASiu Yuen Ho

In-app purchases

None

Dev Calc Pro (Hex Dec Oct Bin)

No in-app purchases

10 purchases

AVR Tutorial Pro

One-time10
  • SPI OLED$1.99
  • Wifi home automation$1.99
  • I2C OLED$1.99
Show 7 more
  • 2.2" TFT$1.99
  • Lora home automation$1.99
  • gps project$2.99
  • Home automation using Siri$2.99
  • Home automation using Google$2.99
  • BT home automation$4.99
  • BLE home automation$4.99

Questions

Is Dev Calc Pro (Hex Dec Oct Bin) free?
Dev Calc Pro (Hex Dec Oct Bin) costs $2.99, with no in-app purchases.
Is AVR Tutorial Pro free?
AVR Tutorial Pro costs $1.99, and also offers in-app purchases.
Do Dev Calc Pro (Hex Dec Oct Bin) or AVR Tutorial Pro have ads?
Neither Dev Calc Pro (Hex Dec Oct Bin) nor AVR Tutorial Pro shows ads.
Which is updated more often, Dev Calc Pro (Hex Dec Oct Bin) or AVR Tutorial Pro?
Dev Calc Pro (Hex Dec Oct Bin) ships an update every 7 months, and AVR Tutorial Pro every 4 months. Most recently, Dev Calc Pro (Hex Dec Oct Bin) was updated on July 18, 2026 and AVR Tutorial Pro on August 22, 2026.

Other comparisons