Photo Sign vs Data Modeler
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Sign
Read full descriptionHide full description
PhotoSign is an app that lets you take photos of signs and categorise them according to the type of sign you took a photo off. You can then export this either as a zip files with all photos and cut-outs, or directly as a zipped CreateML annotation folder and directly import this into CreateML to train your model. Future version of this app will have support for different projects, and support for categories other then Swedish Road Signs.
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
Read full descriptionHide 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
Screenshots
Verdict
The clearest difference is in-app purchases: Photo Sign at none against Data Modeler's 3. Photo Sign also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (13.0 vs 17.6). 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
Both are free to download. Data Modeler sells 3 in-app purchases, starting at $8.49 per month. Photo Sign asks for nothing beyond the download.
Photo Sign ships an update every 2 days, Data Modeler every 5 days. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.
| Parameter | Photo Sign | Data Modeler |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (5 ratings) — better |
| Positive reviews | — | 54.5% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 2 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | AppTrix AB | Rahul Katariya |
In-app purchases
Photo Sign
No in-app purchases
Data Modeler
- Monthly$8.491 Month
- Annual$59.991 Year
- Introductory Lifetime Offer$89.99









