Comparison

ZeroDay Shield vs jor1k

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

Head to head
About

ZeroDay Shield

Learn about computer security, digital threats, and best practices. Generate and securely store strong passwords, test their strength, and stay updated with the latest cybersecurity news. Includes a glossary and social engineering demos to help you avoid scams.

Highlights
  • Computer security learning center
  • Secure random password generator
  • Encrypted password vault
  • Password strength tester
  • Social engineering scam demos
  • Real-time cybersecurity news
  • Cyber security glossary
Features
Read full description

ZeroDay Shield is the ultimate computer security educational tool. Get educated, get secure, and learn to protect digital assets. ZeroDay Shield gives you all the information needed to learn, be informed, and stay protected from digital thefts. This app is developed by Aniruddh Anand, high school student at Independence High School in Frisco, Tx. The app has a simple UI, and easily navigable navigation bar to move between tabs. You are acknowledging that you have agreed to the Privacy Policy and Terms of Service. The links are provided below. Features: -Learning Center, which features details on computer security, security threats, encryption, and best practices. -A secure random password generator with lowercase, uppercase, numerical, and special character options, with the ability to save passwords to a vault. -A password vault stored in the phones local SQLite database secured by AES encryption. -A password tester to check the strength of a password and if the password has been compromised -A variety of social engineering tests/demos to replicate famous scams in order for users to be aware of scammer techniques. -Latest Realtime Cyber Security News -Cyber Security glossary and interesting facts Terms and Conditions linked here : https://www.spreadedu.org/zeroday/terms Privacy Policy linked here: https://www.spreadedu.org/zeroday/privacy

About

jor1k

This app provides a Linux terminal on your iPhone or iPad, allowing you to practice basic commands for learning programming languages and exploring a different Linux flavor. It's designed for users interested in hands-on computer science education.

Highlights
  • Linux terminal emulator
  • Practice basic commands
  • Learn computer programming
  • Explore Linux flavors
  • Mobile-friendly interface
Read full description

jor1k was one of the first Linux terminals designed to work on a web browser. Here you have the opportunity to use your iPhone or iPad to practice some basic commands to learn computer programming languages and test another flavor of Linux.

Screenshots

ZeroDay Shield4 screens
jor1k2 screens

Verdict

The call

The clearest difference is update cadence: ZeroDay Shield at daily against jor1k's every 11 months. ZeroDay Shield also leads on ratings volume (9 vs 1) and iOS requirement (12.1 vs 15.5). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ZeroDay Shield against 5.0 for jor1k. That said, the two scores are not equally well evidenced: ZeroDay Shield has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

ZeroDay Shield ships an update daily, jor1k every 11 months. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
ZeroDay Shield versus jor1k: the parameters behind the verdict, then further details
ParameterZeroDay Shieldjor1k
PriceFreeFree
Rating5.0 (9 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings9 — better1
Update frequencyDaily — betterEvery 11 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.1 — better15.5
Further details — not scored
Size38 MB335 MB
Age rating4+17+
DeveloperBetter Living For All CharityLuis Acevedo-Arreguin

Customer experience

ZeroDay Shield

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

jor1k

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ZeroDay Shield

No in-app purchases

None

jor1k

No in-app purchases

Questions

Is ZeroDay Shield free?
ZeroDay Shield is free to download, with no in-app purchases.
Is jor1k free?
jor1k is free to download, with no in-app purchases.
Which has better reviews, ZeroDay Shield or jor1k?
ZeroDay Shield and jor1k are both rated 5.0 out of 5 on the App Store, from 9 and 1 ratings respectively.
Do ZeroDay Shield or jor1k have ads?
Neither ZeroDay Shield nor jor1k shows ads.
Which is updated more often, ZeroDay Shield or jor1k?
ZeroDay Shield ships an update daily, and jor1k every 11 months. Most recently, ZeroDay Shield was updated on October 1, 2026 and jor1k on October 6, 2026.

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