# Data Modeler vs MailerSend

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.

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.

## The numbers

| Metric | Data Modeler | MailerSend |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/data-modeler/id1575153701/reviews)** | [3.8 (10 ratings)](https://appshunter.io/ios/app/mailersend/id1673019196/reviews) |
| Number of ratings | 5 | **10** |
| Positive reviews | **54.5% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | Freemium | **Free** |
| Size | 23 MB | 20 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Rahul Katariya](https://appshunter.io/developer/1680332229) | [MailerLite, Inc.](https://appshunter.io/developer/1586139548) |

## What reviewers say

### Data Modeler

[App page](https://appshunter.io/ios/app/data-modeler/id1575153701)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $8.49 | per month |
| Annual | $59.99 | per year |
| Introductory Lifetime Offer | $89.99 | one-time |


### MailerSend

[App page](https://appshunter.io/ios/app/mailersend/id1673019196)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Data Modeler free?

Data Modeler is free to download, with in-app purchases available.

### Is MailerSend free?

MailerSend is free to download, with no in-app purchases.

### Which has better reviews, Data Modeler or MailerSend?

Data Modeler is rated higher. Data Modeler averages 4.4 out of 5 from 5 ratings, while MailerSend averages 3.8 from 10 ratings.

### Do Data Modeler or MailerSend have ads?

Neither Data Modeler nor MailerSend shows ads.

### Which is updated more often, Data Modeler or MailerSend?

Data Modeler ships an update every 5 days, and MailerSend monthly. Most recently, Data Modeler was updated on September 9, 2026 and MailerSend on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*