Comparison

Code Rain vs Grass QR Code

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

Head to head
About

Code Rain

Experience a digital code rain effect, inspired by the iconic Matrix visuals. This simulator offers a simple, offline experience with no data collection. Choose between a free version with limited full-screen play or a Pro version for uninterrupted immersion.

Highlights
  • Digital code rain effect
  • Matrix-inspired visuals
  • Offline functionality
  • No data collection
  • Full-screen mode
  • Adjustable settings
Features
Read full description

A digital code rain effect simulator. Matrix fans, enjoy! Simple and easy to use. No internet required. No data collected. Base Vs Pro version: - Both base version and pro version provide the same settings. - Base version has limited full screen play time (settings dialog will show up again after certain time, or screen going off depending on idle/auto-lock settings of your phone). - Pro version allows the full screen mode to run indefinitely, it also prevents the screen from going off.

About

Grass QR Code

Features
Read full description

In the digital wave, two-dimensional code is everywhere, in order to meet everyone's diverse needs for two-dimensional code use, we launched this convenient two-dimensional code scanning and generating tool App. ​ Its scanning function is extremely powerful, built-in advanced scanning engine, can quickly and accurately identify all kinds of two-dimensional code. Even if the two-dimensional code is in a complex background or low-resolution environment, it can accurately read the information. When the light is low, the flash auxiliary is automatically turned on. It covers various scenarios such as shopping payment, reading expansion, activity sign-in, etc., and automatically saves the scanning history, which can be filtered by date and type, and important records can also be added with remarks. ​ The generation function is also excellent, supporting text, URL, contact information, multimedia files and other content to generate two-dimensional code with one click. Users can freely customize the color, shape, pattern of the two-dimensional code, add a custom background, to meet the commercial promotion or personal creative sharing. ​ The App interface is simple and intuitive, the operation process is clear, and novice veterans can quickly get started. The code is optimized, the operation is smooth, and the code scanning and generation are completed in an instant. There are also intimate tips and help, online customer service and frequently asked questions. In terms of security and privacy, data encryption transmission, reasonable management of privacy rights, do not upload user data at will. This App is fully functional, and will continue to update and optimize, is your life and work in the two-dimensional code right-hand.

Screenshots

Code Rain1 screens
Grass QR Code4 screens

Verdict

The call

The clearest difference is in-app purchases: Grass QR Code at none against Code Rain's 1. Grass QR Code also leads on update cadence (every 2 weeks vs every 3 months) and iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Code Rain sells 1 one-off in-app purchase. Grass QR Code asks for nothing beyond the download.

UpkeepUpdate frequency

Code Rain ships an update every 3 months, Grass QR Code every 2 weeks. The most recent releases landed on July 8, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Code Rain versus Grass QR Code: the parameters behind the verdict, then further details
ParameterCode RainGrass QR Code
PriceFreeFree
Rating3.8 (11 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings11 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size4 MB26 MB
Age rating4+4+
DeveloperHanquan Liang杰 欧

In-app purchases

1 purchases

Code Rain

One-time1
  • Pro$4.99
None

Grass QR Code

No in-app purchases

Questions

Is Code Rain free?
Code Rain is free to download, with in-app purchases available.
Is Grass QR Code free?
Grass QR Code is free to download, with no in-app purchases.
Do Code Rain or Grass QR Code have ads?
Neither Code Rain nor Grass QR Code shows ads.
Which is updated more often, Code Rain or Grass QR Code?
Code Rain ships an update every 3 months, and Grass QR Code every 2 weeks. Most recently, Code Rain was updated on July 8, 2026 and Grass QR Code on September 14, 2026.

Other comparisons