# DB RelationalAlgebra vs NameTheory

The clearest difference is iOS requirement: DB RelationalAlgebra at 17.0 against NameTheory's 26.0. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for DB RelationalAlgebra against 5.0 for NameTheory. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

DB RelationalAlgebra ships an update every 3 weeks, NameTheory every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DB RelationalAlgebra | NameTheory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/db-relationalalgebra/id6792125742/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/nametheory/id6808794544/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 2 MB | 15 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Artur Borycki](https://appshunter.io/developer/6792125744) | [Roshan Choxi](https://appshunter.io/developer/1511507219) |

## What reviewers say

### DB RelationalAlgebra

[App page](https://appshunter.io/ios/app/db-relationalalgebra/id6792125742)

This app translates SQL queries into relational algebra, tuple relational calculus, and domain relational calculus. It provides step-by-step derivations, final formulas, and interactive diagrams for each notation. It accurately reports when SQL cannot be expressed exactly by a notation.

**Highlights:** SQL to relational algebra conversion, SQL to tuple relational calculus conversion, SQL to domain relational calculus conversion, Step-by-step derivations, Interactive operator and quantifier scope trees, Comparison view of all notations

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

**In-app purchases:** none


### NameTheory

[App page](https://appshunter.io/ios/app/nametheory/id6808794544)

This app assists developers and creators in brainstorming unique names and checking their availability across web domains and social media handles. It leverages AI to generate variations and offers domain alerts, all while prioritizing user privacy with on-device processing.

**Highlights:** AI-powered name generation, Web domain availability search, Social media handle availability search, Domain alerts, On-device AI processing, Private data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is DB RelationalAlgebra free?

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

### Is NameTheory free?

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

### Which has better reviews, DB RelationalAlgebra or NameTheory?

DB RelationalAlgebra and NameTheory are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do DB RelationalAlgebra or NameTheory have ads?

Neither DB RelationalAlgebra nor NameTheory shows ads.

### Which is updated more often, DB RelationalAlgebra or NameTheory?

DB RelationalAlgebra ships an update every 3 weeks, and NameTheory every 2 weeks. Most recently, DB RelationalAlgebra was updated on October 25, 2026 and NameTheory on October 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.*