AVR Tutorial vs RV4T
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AVR Tutorial
This app simplifies learning AVR microcontrollers with a code wizard that generates C source code for various peripherals. It offers demo projects and an architecture review, making complex MCU programming more accessible for hobbyists and students.
- AVR architecture review
- AVR assembly and C language
- 21 demo projects
- Code wizard for peripherals
- Portability to other ATMEGA MCUs
- I2C and SPI EEPROM support (PRO)
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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 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.
RV4T
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This APP function: 1.Remote control device camera by the IOS machine(iPhone). 2.Display the real-time video which taken by the device camera, video data transmitted via WiFi protocol. 3.Take the photo and video record on the mobile phone side.
Screenshots
Verdict
The clearest difference is in-app purchases: RV4T at none against AVR Tutorial's 10. AVR Tutorial's advantage is update cadence (every 3 months vs every 9 months) and iOS requirement (9.0 vs 13.0). On price, ads 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
Both are free to download. AVR Tutorial sells 10 one-off in-app purchases. RV4T asks for nothing beyond the download.
AVR Tutorial ships an update every 3 months, RV4T every 9 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.
| Parameter | AVR Tutorial | RV4T |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 33 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | 军年 陈 |
In-app purchases
AVR Tutorial
- Unlock PRO feature$1.99
- SPI OLED$1.99
- I2C OLED$1.99
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- Wifi home automation$1.99
- 2.2" TFT$1.99
- LoRa home automation$1.99
- Home automation using Siri$2.99
- Home automation using Google$2.99
- BT home automation$4.99
- BLE home automation$4.99
RV4T
No in-app purchases
