# GDT Mobile vs ADPI

The clearest difference is update cadence: ADPI at fortnightly against GDT Mobile's every 6 months. GDT Mobile's advantage is iOS requirement (9.3 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

GDT Mobile ships an update every 6 months, ADPI fortnightly. The most recent releases landed on October 26, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | GDT Mobile | ADPI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 29 MB | 154 MB |
| Requires iOS | **9.3** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [ClearPoint Ltd](https://appshunter.io/developer/1132390410) | [EventBank](https://appshunter.io/developer/740353440) |

## What reviewers say

### GDT Mobile

[App page](https://appshunter.io/ios/app/gdt-mobile/id1132390411)

**Features:** macOS Compatibility

**In-app purchases:** none


### ADPI

[App page](https://appshunter.io/ios/app/adpi/id6475652632)

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

**In-app purchases:** none


## Frequently asked questions

### Is GDT Mobile free?

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

### Is ADPI free?

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

### Do GDT Mobile or ADPI have ads?

Neither GDT Mobile nor ADPI shows ads.

### Which is updated more often, GDT Mobile or ADPI?

GDT Mobile ships an update every 6 months, and ADPI fortnightly. Most recently, GDT Mobile was updated on October 26, 2026 and ADPI on October 21, 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.*