Data Modeler vs do over
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
do over
This tool allows for real-time text manipulation and template merging. Easily substitute values and placeholders to see how your merged content will appear instantly. It supports multi-step substitutions for complex text generation needs.
- Real-time template text changes
- Customizable placeholder usage
- Preview merged results
- Multi-step substitutions
- List of values input
- Template input
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- Want to quickly and easily change the values and template text and see the results in realtime? do over can do that. - Want to use a different placeholder in the template? do over can do that. - Want to see how the merged results will look using different joins? do over can do that. - Want to be successful in life? do over, unfortunately, cannot do that. Provide a list of values (apple banana coconut … zucchini, for example) along with a template to use (such as ?i. ?), and do over generates merged output: 1. apple 2. banana 3. coconut … 26. zucchini do over can do multi-step substitutions as well.
Screenshots
Verdict
The clearest difference is price: Data Modeler at Free against do over's $5.00. Data Modeler also leads on update cadence (every 5 days vs fortnightly) and ratings volume (5 vs 1). do over's advantage is rating (5.0 vs 4.4) and 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
Data Modeler is free to download; do over costs $5.00 up front. Data Modeler sells 3 in-app purchases, starting at $8.49 per month. do over asks for nothing beyond the download.
do over holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Data Modeler has 5 ratings behind it against 1, so its average is the more settled of the two.
Data Modeler ships an update every 5 days, do over fortnightly. The most recent releases landed on September 25, 2026 and October 9, 2026 respectively.
| Parameter | Data Modeler | do over |
|---|---|---|
| Price | Free — better | $5.00 |
| Rating | 4.4 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 54.5% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 5 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Rahul Katariya | Richard Koopmann |
Customer experience
Data Modeler
do over
In-app purchases
Data Modeler
- Monthly$8.491 Month
- Annual$59.991 Year
- Introductory Lifetime Offer$89.99
do over
No in-app purchases









