# interplex vs Regla de tres

The clearest difference is in-app purchases: Regla de tres at none against interplex's 1. Regla de tres also leads on device support (3 vs 1). interplex's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 19 months). On price and iOS requirement there is nothing between them.

Both are free to download. interplex sells 1 one-off in-app purchase. Regla de tres asks for nothing beyond the download.

interplex ships an update every 3 weeks, Regla de tres every 19 months. The most recent releases landed on September 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | interplex | Regla de tres |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/interplex-pocket-edition/id438059236/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 19 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 24 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Eric Hartner](https://appshunter.io/developer/438059239) | [Edwin Mejia](https://appshunter.io/developer/1620400021) |

## What reviewers say

### interplex

[App page](https://appshunter.io/ios/app/interplex-pocket-edition/id438059236)

Access and manage your interplex databases on your iPhone. Includes a sample database and allows for easy sharing via Airdrop. Synchronize with Dropbox for seamless updates across devices.

**Highlights:** View interplex databases, Includes sample database, Share databases via Airdrop, Search glossaries and expressions, Multi-glossary searches, Dropbox synchronization, In-app purchase for editing

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Edit Mode | $4.99 | one-time |


### Regla de tres

[App page](https://appshunter.io/ios/app/regla-de-tres/id6443945192)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is interplex free?

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

### Is Regla de tres free?

Regla de tres is free to download, with no in-app purchases.

### Do interplex or Regla de tres have ads?

Regla de tres shows ads; interplex does not.

### Which is updated more often, interplex or Regla de tres?

interplex ships an update every 3 weeks, and Regla de tres every 19 months. Most recently, interplex was updated on September 30, 2026 and Regla de tres on September 17, 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.*