Comparison

Data Modeler vs Schema Studio

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

Head to head
About

Data Modeler

Effortlessly create, visualize, and export complex data models for your projects. Design entities, relationships, and attributes with an intuitive editor. Add data to test your models and export them as JSON documents or diagrams.

Highlights
  • Intuitive data model editor
  • Create entities, attributes, and relationships
  • Define cardinalities and relationship types
  • Add and store data within models
  • Visualize models as ER diagrams
  • Export data as JSON documents
Features
Read full description

Data Modeler: Create, Export, and Visualize Your Data Models With Data Modeler, you can effortlessly create complex data models for your app, website, or database project. Create entities and relationships, and define attributes and cardinalities with ease. The editor is intuitive and responsive, with a wide range of tools at your fingertips. Once you have your data model set up, you can add data to it to make sure it works as expected. And when you're satisfied with your data, you can export it as JSON, so it's ready to use in your projects. You can also view it as a JSON diagram, making it easy to understand its structure and relationships at a glance. Create Complex Data Models with Ease: - Design data models quickly and efficiently with a responsive and intuitive editor. - Add entities, attributes, and cardinalities with a wide range of tools at your fingertips. - Create relationships between entities and define the type of relationship, cardinality, and properties with ease. - View your data models as an ER diagram to quickly understand their structure and relationships at a glance. Add and Export Data as JSON: - Add and store data from your data models with a responsive and intuitive editor. - View your data as a JSON diagram to quickly understand their structure and relationships at a glance. - Analyze complex data models with ease, and identify areas for improvement. - Export data as JSON document to use in your projects. In summary, Data Modeler is an easy-to-use app that simplifies data modeling by providing a responsive and intuitive editor, the ability to add data to those data models, and the ability to export data as JSON and visualize them with a JSON diagram. Whether you're a developer, designer, or project manager, Data Modeler has something to offer to improve your workflow and streamline your projects. Happy Data Modeling! ------- Terms of use: https://aarkaystudio.com/terms Privacy policy: https://aarkaystudio.com/privacy

About

Schema Studio

Read full description

Build tables, see their relationships, and export DDL and documentation. Schema Studio brings database design to iPhone and iPad. • Copy an existing table as the starting point for a new one. Fields, constraints, and indexes carry over; edit the name before saving. • Sort your table list by creation order, table name, or display name, with ascending and descending options. • Set data types, required fields, primary keys, uniqueness, and automatic numbering. • Design composite indexes with per-column sort directions. • Create relationships and inspect an interactive ER diagram. • Review generated SQL in a syntax-highlighted preview. • Save or share SQL plus Excel, PDF, Markdown, and HTML documentation. Generate for PostgreSQL, MySQL, MariaDB, SQLite, Oracle Database, Microsoft SQL Server, and IBM Db2. Choose the interface and documentation languages independently from 15 supported languages. No account, ads, tracking, or cloud service is required. Designs stay on your device unless you explicitly save or share exported files. Table copies do not include relationships. Schema Studio is a design and DDL generation tool; it does not connect to database servers or execute SQL.

Screenshots

Data Modeler4 screens
Schema Studio4 screens

Verdict

The call

The clearest difference is price: Data Modeler at Free against Schema Studio's $0.99. Data Modeler also leads on update cadence (every 5 days vs every 6 weeks). Schema Studio's advantage is in-app purchases (none vs 3). On 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

Data Modeler is free to download; Schema Studio costs $0.99 up front. Data Modeler sells 3 in-app purchases, starting at $8.49 per month. Schema Studio asks for nothing beyond the download.

UpkeepUpdate frequency

Data Modeler ships an update every 5 days, Schema Studio every 6 weeks. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.

Scorecard3 real differences · 7 level
Data Modeler versus Schema Studio: the parameters behind the verdict, then further details
ParameterData ModelerSchema Studio
PriceFree — better$0.99
Rating4.4 (5 ratings) — better—
Positive reviews54.5% of reviews—
Number of ratings5 — better—
Update frequencyEvery 5 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.617.0 — better
Further details — not scored
Size23 MB5 MB
Age rating4++4
DeveloperRahul KatariyaSMART BIT K.K

In-app purchases

3 purchases

Data Modeler

Subscriptions2
  • Monthly$8.491 Month
  • Annual$59.991 Year
One-time1
  • Introductory Lifetime Offer$89.99
None

Schema Studio

No in-app purchases

Questions

Is Data Modeler free?
Data Modeler is free to download, with in-app purchases available.
Is Schema Studio free?
Schema Studio costs $0.99, with no in-app purchases.
Do Data Modeler or Schema Studio have ads?
Neither Data Modeler nor Schema Studio shows ads.
Which is updated more often, Data Modeler or Schema Studio?
Data Modeler ships an update every 5 days, and Schema Studio every 6 weeks. Most recently, Data Modeler was updated on October 11, 2026 and Schema Studio on October 22, 2026.

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