# PostgreSqlProg2 vs DB50X

The clearest difference is update cadence: DB50X at every 3 weeks against PostgreSqlProg2's every 6 months. DB50X also leads on price ($9.99 vs $14.99) and chart position (#172 vs unranked). PostgreSqlProg2's advantage is iOS requirement (9.3 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

PostgreSqlProg2 costs $14.99 and DB50X $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PostgreSqlProg2 ships an update every 6 months, DB50X every 3 weeks. The most recent releases landed on May 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PostgreSqlProg2 | DB50X |
| --- | --- | --- |
| Price | $14.99 | **$9.99** |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/db50x/id6625971367/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Best chart rank | — | **#172** |
| Size | 205 MB | 7 MB |
| Requires iOS | **9.3** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Balasubramanian Ramanathan](https://appshunter.io/developer/1497624706) | [Christophe de Dinechin](https://appshunter.io/developer/1761608161) |

## What reviewers say

### PostgreSqlProg2

[App page](https://appshunter.io/ios/app/postgresqlprog2-postgresql/id1474555615)

**In-app purchases:** none


### DB50X

[App page](https://appshunter.io/ios/app/db50x/id6625971367)

**Currently charting:** #172 Top Paid · Productivity (US App Store)

This scientific calculator offers high-precision computations with arbitrary precision for numbers. It supports advanced functions like complex numbers, matrices, symbolic calculations, and graphing, with a user-friendly interface and extensive built-in help.

**Highlights:** Arbitrary precision calculations, RPN and algebraic operations, Complex numbers, vectors, matrices, Symbolic and numerical solving, Graphing and plotting, Engineering units and constants, Unicode text support

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

**In-app purchases:** none


## Frequently asked questions

### Is PostgreSqlProg2 free?

PostgreSqlProg2 costs $14.99, with no in-app purchases.

### Is DB50X free?

DB50X costs $9.99, with no in-app purchases.

### Do PostgreSqlProg2 or DB50X have ads?

Neither PostgreSqlProg2 nor DB50X shows ads.

### Which is updated more often, PostgreSqlProg2 or DB50X?

PostgreSqlProg2 ships an update every 6 months, and DB50X every 3 weeks. Most recently, PostgreSqlProg2 was updated on May 19, 2026 and DB50X 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.*