Data Modeler vs MailerSend
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
MailerSend
Manage your transactional email and SMS sending activity on the go. Monitor key metrics, domain settings, and email activity directly from your mobile device. Stay in control of your sending reputation and email delivery, even when away from your computer.
- View account activity dashboard
- Monitor sender reputation, bounce, and complaint rates
- Manage domain settings and tracking
- Filter email activity by domain or event
- View email status and timeline
- Check email subject and content
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With the MailerSend iOS app, you can access key metrics, email activity, and important domain settings from the palm of your hand. Need to check the recent activity for a specific event or stop sending from one of your domains while on the go? No problem—the MailerSend app provides access to the critical features of your account. It will allow you to monitor and maintain your transactional email sending activity as well as make important changes, even when you’re away from your laptop or PC. - View overall account activity from the intuitive dashboard - Monitor your sender reputation, bounce rate and complaint rate - Get a more granular view of activity for all domains on the Domains tab - Edit the ability to track opens, clicks, content and unsubscribes for each domain - Stop sending or delete individual domains - View all email activity or filter it down by domain or event - Check which emails are being delivered, opened and rejected - View the details for each email including it’s status and timeline - Check the email’s subject and content (if content tracking is enabled) - View overall sending stats in analytics to see how you account is performing
Screenshots
Verdict
The clearest difference is review sentiment: Data Modeler at 55% against MailerSend's 0%. Data Modeler also leads on rating (4.4 vs 3.8) and update cadence (every 5 days vs monthly). MailerSend's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 17.6). On price, ratings volume, 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. MailerSend asks for nothing beyond the download.
Data Modeler holds the better App Store score, 4.4 against 3.8. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews point the same way: 55% of Data Modeler's written reviews are positive against 0% of MailerSend's.
Data Modeler ships an update every 5 days, MailerSend monthly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.
| Parameter | Data Modeler | MailerSend |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) — better | 3.8 (10 ratings) |
| Positive reviews | 54.5% of reviews — better | 0.0% of reviews |
| Number of ratings | 5 | 10 — better |
| Update frequency | Every 5 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 20 MB |
| Age rating | 4+ | +4 |
| Developer | Rahul Katariya | MailerLite, Inc. |
Customer experience
Data Modeler
MailerSend
In-app purchases
Data Modeler
- Monthly$8.491 Month
- Annual$59.991 Year
- Introductory Lifetime Offer$89.99
MailerSend
No in-app purchases









