Comparison

perli vs System Designer

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

Head to head
About

perli

Learn, run, and share Perl scripts on iOS. Features include code autocompletion, syntax highlighting, and a built-in browser for learning materials. Customize your learning environment and generate QR codes for easy sharing.

Highlights
  • Autocompletion
  • Auto Indent
  • Code coloring
  • Built-in browser
  • Code templates
  • File system support
  • QR code generation
Features
Read full description

This is an ios perl app,you can learn,run,share perl script. Features : Autocomplate. Auto Indent. Code color. In(the built-in browser or the txt editor),Select the text to run. Horizontal screen development. Code templates,the contents of the new file is copy from contents of the template file. *You can enter perl code, and then you can execut the perl code,support the STDIN function. *You can use the file system to supports txt, pdf, chm, mp3,m4v,zip, gif, png, html, pl ,doc... *You can find learning materials by the built-in browser . *You can save perl code and learning materials, and can be modified to the save file and delete the save file . *You can control the background image and color, and execution voice , background animation, text color and shadow, switch interface animation , the number and the order of the main interface of the tab bar to create your learning software. *You can Learn perl knowledge , the system provides some basic learning materials . *You can use perl code or learning materials to generate two-dimensional code , for easy sharing . *You can share code by Email,Weibo,Twitter,Facebook. *You can use the counter,light in the Setting tab.

About

System Designer

Design complex systems using a low-code platform that leverages UML standards. Generate code skeletons and manage components graphically. Run and test your system with dynamic type checking.

Highlights
  • UML-based system modeling
  • Code skeleton generation
  • Graphical component creation
  • MSON format for model definition
  • Dynamic type checking
  • Cross-device synchronization via GitHub
Features
Read full description

System Designer is a low-code development platform for creating systems. No matter the frameworks you use and the code you write, the most important is the model that you define to create your system. System Designer helps you to design this model and to generate the classes and components to build your system. DESIGN YOUR SYSTEM WITH EASE If you look at the different JavaScript frameworks on the market, you will notice that they all have their own way to define a model, generally only with code. System Designer uses UML, a standard, to define your model. So you probably already know how to design in System Designer even if you have never run it. The definition of the model is stored on a JSON format called MSON. With MSON you can define types, classes, one to one / one to many relationships and multi inheritance between classes. CODE THE BEHAVIOR OF YOUR SYSTEM Once you have created your model, System Designer generates the skeletons of all your methods. You only have then to add your code to implement them. System Designer provides you helpers to manage your components. You can easily navigate threw your components to create your application. CREATE COMPONENTS GRAPHICALLY There is no need to code to instantiate a component. Create a component in System Designer is like creating a document in a NoSQL Database. In fact, System Designer acts as an ODM (Object-Document Mapper) to manage your components as NoSQL Documents. RUN YOUR SYSTEM You can run your system directly from System Designer. Because you have defined a model for your application, a Dynamic Type Check is done on every action of your system. All warnings are send and shown in System Designer. DESIGN ON THE GO System Designer can be used on macOS, iPad or any browsers. System Designer has a Github module to synchronize your work between all these apps. You can begin your design on your Mac and then continue it on your iPad.

Screenshots

perli4 screens
System Designer3 screens

Verdict

The call

The clearest difference is in-app purchases: System Designer at none against perli's 7. System Designer also leads on update cadence (monthly vs every 3 months). On price, rating, review sentiment and ratings volume 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. perli sells 7 one-off in-app purchases. System Designer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for perli against 4.4 for System Designer. Both are backed by a comparable volume of ratings — 19 and 17 respectively. Written reviews are what separate them: 84% of perli's written reviews are positive against 78% of System Designer's.

UpkeepUpdate frequency

perli ships an update every 3 months, System Designer monthly. The most recent releases landed on August 12, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
perli versus System Designer: the parameters behind the verdict, then further details
ParameterperliSystem Designer
PriceFreeFree
Rating4.5 (19 ratings) — better4.4 (17 ratings)
Positive reviews83.9% of reviews — better77.8% of reviews
Number of ratings19 — better17
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS14.0 — better15.6
Further details — not scored
Size77 MB7 MB
Age rating17+4+
Developer小文 黄Erwan Carriou

Customer experience

perli

All ratings19 ratings
Positive89.5%
Neutral0.0%
Negative10.5%
Written reviews87 reviews
Positive83.9%
Neutral2.3%
Negative13.8%

System Designer

All ratings17 ratings
Positive88.2%
Neutral0.0%
Negative11.8%
Written reviews9 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

In-app purchases

7 purchases

perli

One-time7
  • Password Service$0.99
  • To remove ads$0.99
  • Horizontal screen development$0.99
Show 4 more
  • Simple Vedio$0.99
  • Encryption Compression$0.99
  • Text Search$0.99
  • Autocomplete$0.99
None

System Designer

No in-app purchases

Questions

Is perli free?
perli is free to download, with in-app purchases available.
Is System Designer free?
System Designer is free to download, with no in-app purchases.
Which has better reviews, perli or System Designer?
perli is rated higher. perli averages 4.5 out of 5 from 19 ratings, while System Designer averages 4.4 from 17 ratings.
Do perli or System Designer have ads?
Neither perli nor System Designer shows ads.
Which is updated more often, perli or System Designer?
perli ships an update every 3 months, and System Designer monthly. Most recently, perli was updated on August 12, 2026 and System Designer on September 18, 2026.

Other comparisons