# iPostgreSqlProg vs Diagrams Notepad 3

The clearest difference is review sentiment: iPostgreSqlProg at 100% against Diagrams Notepad 3's 39%. iPostgreSqlProg also leads on in-app purchases (none vs 1) and iOS requirement (9.0 vs 15.0). Diagrams Notepad 3's advantage is price (Free vs $9.99) and update cadence (monthly vs every 3 months). On ads and device support there is nothing between them.

Diagrams Notepad 3 is free to download; iPostgreSqlProg costs $9.99 up front. Diagrams Notepad 3 sells 1 one-off in-app purchase. iPostgreSqlProg asks for nothing beyond the download.

iPostgreSqlProg ships an update every 3 months, Diagrams Notepad 3 monthly. The most recent releases landed on June 5, 2026 and June 9, 2026 respectively.

## The numbers

| Metric | iPostgreSqlProg | Diagrams Notepad 3 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[3.5 (51 ratings)](https://appshunter.io/ios/app/diagrams-notepad-3/id1387425355/reviews)** |
| Number of ratings | — | **51** |
| Positive reviews | **100.0% of reviews** | 39.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 16 MB | 29 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Balasubramanian Ramanathan](https://appshunter.io/developer/1497624706) | [sunata UG (haftungsbeschraenkt)](https://appshunter.io/developer/1387425354) |

## What reviewers say

### iPostgreSqlProg

[App page](https://appshunter.io/ios/app/ipostgresqlprog-postgresql/id449473148)

Remotely visualize and explore PostgreSQL databases from iOS devices. Offers powerful tools for scripting, searching, and administering database objects with a multi-tab query runner and special SQL keyboard for fast access.

**Highlights:** Visualize, search & script database objects, Multi-tab query runner with parallel execution, Send ad-hoc queries and browse results, Special SQL keyboard for fast keyword access, Save and reuse queries, Email scripts and query results, Explore Users, Databases, Schemas, Tables, Views, and more

**In-app purchases:** none


### Diagrams Notepad 3

[App page](https://appshunter.io/ios/app/diagrams-notepad-3/id1387425355)

Create and sync diagrams, flowcharts, and mind maps across iPhone, iPad, and Mac. Supports Apple Pencil for drawing and offers collaboration features. Export in various formats.

**Highlights:** Cross-device sync via iCloud, Vector-based shapes and connectors, Apple Pencil support, Diagram sharing and collaboration, Export to PDF, PNG, JPEG, Unlimited diagram size

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited number of diagrams | $22.99 | one-time |


## Frequently asked questions

### Is iPostgreSqlProg free?

iPostgreSqlProg costs $9.99, with no in-app purchases.

### Is Diagrams Notepad 3 free?

Diagrams Notepad 3 is free to download, with in-app purchases available.

### Do iPostgreSqlProg or Diagrams Notepad 3 have ads?

Neither iPostgreSqlProg nor Diagrams Notepad 3 shows ads.

### Which is updated more often, iPostgreSqlProg or Diagrams Notepad 3?

iPostgreSqlProg ships an update every 3 months, and Diagrams Notepad 3 monthly. Most recently, iPostgreSqlProg was updated on June 5, 2026 and Diagrams Notepad 3 on June 9, 2026.

---

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