# Fast PDF APP vs Gizmo

The clearest difference is in-app purchases: Fast PDF APP at none against Gizmo's 2. Gizmo's advantage is price ($2.00 vs $3.99). On update cadence, ads, device support and iOS requirement there is nothing between them.

Fast PDF APP costs $3.99 and Gizmo $2.00 up front. Gizmo sells 2 in-app purchases, starting at $2.99 per month. Fast PDF APP asks for nothing beyond the download.

Fast PDF APP ships an update fortnightly, Gizmo weekly. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Fast PDF APP | Gizmo |
| --- | --- | --- |
| Price | $3.99 | **$2.00** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 3 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Robert Corbin](https://appshunter.io/developer/1890247992) | [Myworkingmemory LLC](https://appshunter.io/developer/1892099684) |

## What reviewers say

### Fast PDF APP

[App page](https://appshunter.io/ios/app/fast-pdf-app-merge-documents/id6761960212)

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

**In-app purchases:** none


### Gizmo

[App page](https://appshunter.io/ios/app/gizmo-track-your-time/id6774813320)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Unlimited Timers | $2.99 | per month |
| Yearly Unlimited Timers | $25.00 | per year |


## Frequently asked questions

### Is Fast PDF APP free?

Fast PDF APP costs $3.99, with no in-app purchases.

### Is Gizmo free?

Gizmo costs $2.00, and also offers in-app purchases.

### Do Fast PDF APP or Gizmo have ads?

Neither Fast PDF APP nor Gizmo shows ads.

### Which is updated more often, Fast PDF APP or Gizmo?

Fast PDF APP ships an update fortnightly, and Gizmo weekly. Most recently, Fast PDF APP was updated on November 5, 2026 and Gizmo on November 10, 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.*