Comparison

Reliability of systems vs AVR Projects

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

Head to head

Reliability of systems

AVR Microcontroller Projects

Free

📚 Education

No ratingsView app →

About

Reliability of systems

Features

Read full description

This app is a tool for calculating reliability. It is suitable for hobbyist, students or engineers. Features • Mean-Time-Between-Failure (MTBF) calculator • Reliability of series systems • Reliability of parallel systems • Reliability function Features in PRO • Reliability of mixed systems All trade names mentioned in this app or the other documentation provided by this app are trademarks or registered trademarks of their respective holder. This app is not related or affiliated in any way these companies.

About

AVR Projects

Features

Read full description

AVR Projects is an app for those who are learning AVR Microcontroller programming, and it contains demo projects for makers, electronic enthusiast and engineering students. It focuses on ATmega328p, which is a microcontroller IC on Arduino Uno, and Atmel (Microchip) Studio IDE. * Learn AVR Microcontroller Programming with example codes in Embedded written on Atmel Studio IDE, Proteus simulation files, circuit diagrams and descriptions. * Easy to access sensors and ICs’s datasheets. More projects will be added soon!

Screenshots

Reliability of systems4 screens

AVR Projects4 screens

Verdict

The call

The clearest difference is update cadence: AVR Projects at daily against Reliability of systems's every 18 months. Reliability of systems's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Reliability of systems sells 1 one-off in-app purchase and AVR Projects sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Reliability of systems ships an update every 18 months, AVR Projects daily. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 4 level

Reliability of systems versus AVR Projects: the parameters behind the verdict, then further details
Parameter	Reliability of systems	AVR Projects
Price	Free	Free
Update frequency	Every 18 months	Daily — better
Ads	No	No
In-app purchases	Yes	Yes
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	13.0 — better	17.0
Further details — not scored
Size	4 MB	20 MB
Age rating	4+	4+
Developer	Siu Yuen Ho	Zaw Win Myat

In-app purchases

1 purchases

Reliability of systems

One-time1

Unlock Pro feature$1.99

10 purchases

AVR Projects

One-time10

R2R Ladder DAC$0.99
Sawtooth Waveform$0.99
Triangular Waveform$0.99

Show 7 more

Sine Waveform$0.99
Ammeter AVR$0.99
4x3 Matrix Keypad$0.99
Ohm Meter AVR$0.99
Voltmeter AVR$0.99
TM1637 Interfacing with AVR$0.99
Graphic LCD Interfacing$0.99

Questions

Is Reliability of systems free?

Reliability of systems is free to download, with in-app purchases available.

Is AVR Projects free?

AVR Projects is free to download, with in-app purchases available.

Do Reliability of systems or AVR Projects have ads?

Neither Reliability of systems nor AVR Projects shows ads.

Which is updated more often, Reliability of systems or AVR Projects?

Reliability of systems ships an update every 18 months, and AVR Projects daily. Most recently, Reliability of systems was updated on October 10, 2026 and AVR Projects on October 25, 2026.