Comparison

Systematic FYI vs Bytesize

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

Head to head

Systematic FYI

System design flashcards

★ 5.02 ratingsView app →

About

Systematic FYI

Features

Read full description

Review key concepts with a simple system design flashcard app for your system design interview. This app includes three sets of flashcards focused on common interview questions, patterns, and tradeoffs. It’s designed to help you build intuition for system design interviews at FAANG companies like Google, Meta, Amazon, and other top tech firms. Ideal for software engineers preparing for interviews or brushing up on architecture fundamentals. No extra features or distractions—just system design flashcard practice. Privacy Policy: https://www.systematic.fyi/privacy Terms of Service: https://www.systematic.fyi/terms

About

Bytesize

Prepare for technical interviews with a modern, swipe-based approach. Practice questions and build confidence to land your dream job in the tech industry.

Highlights

Swipe-based interview practice
Technical question preparation
Career advancement focus
Modern interview techniques
Job readiness training

Features

Read full description

Technical interview prep for the modern day. Swipe to six figures!

Screenshots

Systematic FYI3 screens

Bytesize4 screens

Verdict

The call

The clearest difference is in-app purchases: Bytesize at none against Systematic FYI's 1. Bytesize also leads on update cadence (daily vs every 5 days). 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. Systematic FYI sells 1 in-app purchase, starting at $3.99 per month. Bytesize asks for nothing beyond the download.

UpkeepUpdate frequency

Systematic FYI ships an update every 5 days, Bytesize daily. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level

Systematic FYI versus Bytesize: the parameters behind the verdict, then further details
Parameter	Systematic FYI	Bytesize
Price	Free	Free
Rating	—	5.0 (2 ratings) — better
Positive reviews	—	100.0% of reviews
Number of ratings	—	2 — better
Update frequency	Every 5 days	Daily — better
Ads	No	No
In-app purchases	Yes	No — better
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.1	15.1
Further details — not scored
Size	30 MB	38 MB
Age rating	4+	4+
Developer	William Prin	Arkady Marchenko

In-app purchases

1 purchases

Systematic FYI

Subscriptions1

Systematic Premium$3.991 Month

None

Bytesize

No in-app purchases

Questions

Is Systematic FYI free?

Systematic FYI is free to download, with in-app purchases available.

Is Bytesize free?

Bytesize is free to download, with no in-app purchases.

Do Systematic FYI or Bytesize have ads?

Neither Systematic FYI nor Bytesize shows ads.

Which is updated more often, Systematic FYI or Bytesize?

Systematic FYI ships an update every 5 days, and Bytesize daily. Most recently, Systematic FYI was updated on October 25, 2026 and Bytesize on October 31, 2026.