# Nitro PDF Pro vs Forma

The clearest difference is review sentiment: Forma at 69% against Nitro PDF Pro's 13%. Forma also leads on rating (4.7 vs 3.9) and ratings volume (26K vs 158). Nitro PDF Pro's advantage is ads (none vs shown). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Nitro PDF Pro sells 2 in-app purchases, starting at $19.99 per year and Forma sells 17 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Forma holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: Forma has 26K ratings behind it against 158, so its average is the more settled of the two. Written reviews point the same way: 13% of Nitro PDF Pro's written reviews are positive against 69% of Forma's.

Nitro PDF Pro ships an update every 2 months, Forma monthly. The most recent releases landed on September 20, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Nitro PDF Pro | Forma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (158 ratings)](https://appshunter.io/ios/app/nitro-pdf-pro-read-and-edit/id1608616539/reviews) | **[4.7 (26K ratings)](https://appshunter.io/ios/app/forma-pdf-document-editor/id1658514439/reviews)** |
| Number of ratings | 158 | **26K** |
| Positive reviews | 12.5% of reviews | **69.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | — | **#103** |
| Size | 59 MB | 201 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nitro Software, Inc.](https://appshunter.io/developer/1607870122) | [BPMobile](https://appshunter.io/developer/1085442365) |

## What reviewers say

### Nitro PDF Pro

[App page](https://appshunter.io/ios/app/nitro-pdf-pro-read-and-edit/id1608616539)

Edit, read, sign, and secure PDF documents on your iOS device. This powerful yet lightweight app allows for on-the-go productivity with features like text editing, annotation, form filling, and cloud syncing.

**Highlights:** Edit PDF text, Annotate and highlight PDFs, Fill and save PDF forms, Sign and share PDF documents, Password protect PDFs, Sync with cloud storage, Merge and organize PDFs

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $19.99 | per year |
| Nitro PDF Pro for iOS | $9.99 | one-time |

**What reviewers like**

- 👍 Helpful for managing project documents
- 👍 Convenient for PDF modifications
- 👍 Superior PDF handling on Mac
- 👍 Satisfactory in both Mac and Windows environments

**What reviewers complain about**

- 👎 Pro features not available on iOS/iPadOS
- 👎 Yearly charges for basic features
- 👎 Expensive and useless
- 👎 Fails to deliver promised features
- 👎 Impossible to reorder PDF files

**Reported bugs**

- Cannot reorder PDF files
- Crashes when opening PDFs from websites/email
- Does not save markups or documents
- Difficulty creating new folders
- Cannot rotate pages

**Requested features**

- Keyboard support (Cmd + F for search)
- Ability to cancel search with Esc
- OCR and conversion to text documents on tablets
- User manual for iPad app
- Support for Apple Pencil


### Forma

[App page](https://appshunter.io/ios/app/forma-pdf-document-editor/id1658514439)

**Currently charting:** #103 Top Grossing · Productivity (US App Store)

This AI-powered app allows users to edit, fill, sign, scan, and convert PDF documents. It offers features like text editing, form filling, e-signatures, OCR scanning, and file conversion. An AI assistant can summarize, rewrite, or generate content, and users can create invoices and resumes.

**Highlights:** AI-powered PDF editing, Fill and e-sign forms, Built-in OCR scanner, Convert PDFs to various formats, AI assistant for content generation, Create and send invoices, Resume builder

**Features:** Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Forma Pro | $3.99 | per 7 days |
| Forma Pro | $4.99 | per 7 days |
| Forma Pro | $4.99 | per 7 days |
| Forma Pro | $5.99 | per 7 days |
| Forma Pro | $5.99 | per 7 days |
| Forma Pro | $6.99 | per 7 days |
| Forma Pro | $6.99 | per 7 days |
| Forma Pro | $9.99 | per month |
| 1 month Pro 100Gb storage | $10.99 | per month |
| 1 year Pro 10Gb storage | $19.99 | per year |
| Forma Pro | $20.99 | per year |
| 1 year Pro 100Gb storage | $24.99 | per year |
| Forma Pro | $24.99 | per year |
| Forma Pro | $29.99 | per year |
| Forma Pro | $39.99 | per year |
| Forma Pro | $39.99 | per year |
| Forma Pro | $59.99 | per year |

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Easy to use
- 💡 Useful features like autofill and cloud sync
- 🚀 Seamless document management

**What reviewers complain about**

- 🐛 Crashes and glitches
- 💰 Expensive subscription
- 🔒 Difficult to cancel subscription
- 🚫 Limited editing capabilities

**Reported bugs**

- Incorrect document formatting after editing
- Inability to load or edit pre-existing documents
- Unexpected charges and billing issues

**Requested features**

- Undo/redo functionality
- Ability to edit existing text in documents
- Support for more file formats
- Stylus support for precise editing


## Frequently asked questions

### Is Nitro PDF Pro free?

Nitro PDF Pro is free to download, with in-app purchases available.

### Is Forma free?

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

### Which has better reviews, Nitro PDF Pro or Forma?

Forma is rated higher. Nitro PDF Pro averages 3.9 out of 5 from 158 ratings, while Forma averages 4.7 from 26K ratings.

### Do Nitro PDF Pro or Forma have ads?

Forma shows ads; Nitro PDF Pro does not.

### Which is updated more often, Nitro PDF Pro or Forma?

Nitro PDF Pro ships an update every 2 months, and Forma monthly. Most recently, Nitro PDF Pro was updated on September 20, 2026 and Forma on September 25, 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.*