# ContractShield AI vs PDFai

The clearest difference is ads: ContractShield AI at none against PDFai's shown. ContractShield AI also leads on update cadence (every 3 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ContractShield AI sells 4 in-app purchases, starting at $9.99 per month and PDFai sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ContractShield AI ships an update every 3 days, PDFai fortnightly. The most recent releases landed on October 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ContractShield AI | PDFai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/contractshield-ai/id6771313067/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 50 MB | 96 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sasha Estrada](https://appshunter.io/developer/1896777857) | [KolekciApps LLC](https://appshunter.io/developer/1873341851) |

## What reviewers say

### ContractShield AI

[App page](https://appshunter.io/ios/app/contractshield-ai/id6771313067)

Instantly analyze any contract, understand its risks, and get negotiation scripts to secure better terms. It extracts key dates and deadlines, offering plain-English explanations for complex clauses. Built with privacy in mind, your documents are analyzed and immediately discarded.

**Highlights:** AI-powered contract analysis, Risk scoring for clauses, Plain-English explanations, Negotiation script generation, Automatic deadline extraction, Secure document handling

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ContractShield Pro - Monthly | $9.99 | per month |
| ContractShield Pro – Annual | $71.90 | per year |
| ContractShield - Single Credit | $2.99 | one-time |
| ContractShield - 10 Credits | $14.99 | one-time |


### PDFai

[App page](https://appshunter.io/ios/app/pdfai-pdf-chat-and-summarizer/id6780204877)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Yearly | $99.99 | per year |


## Frequently asked questions

### Is ContractShield AI free?

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

### Is PDFai free?

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

### Do ContractShield AI or PDFai have ads?

PDFai shows ads; ContractShield AI does not.

### Which is updated more often, ContractShield AI or PDFai?

ContractShield AI ships an update every 3 days, and PDFai fortnightly. Most recently, ContractShield AI was updated on October 4, 2026 and PDFai on October 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.*