# AiChatPDF vs NeedleLog

The clearest difference is in-app purchases: NeedleLog at none against AiChatPDF's 2. NeedleLog also leads on ads (none vs shown) and update cadence (every 4 days vs every 7 months). AiChatPDF's advantage is iOS requirement (12.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. AiChatPDF sells 2 in-app purchases, starting at $4.99 per month. NeedleLog asks for nothing beyond the download.

AiChatPDF ships an update every 7 months, NeedleLog every 4 days. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AiChatPDF | NeedleLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/needlelog/id6758234037/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 41 MB | 32 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Oji Setyawan](https://appshunter.io/developer/1748304436) | [PETER OLANIPEKUN OWOLABI](https://appshunter.io/developer/1871666514) |

## What reviewers say

### AiChatPDF

[App page](https://appshunter.io/ios/app/aichatpdf-ask-your-pdf/id6544782982)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $39.99 | per year |


### NeedleLog

[App page](https://appshunter.io/ios/app/needlelog/id6758234037)

Manage your tailoring business offline with this app. Track customers, record detailed measurements, and monitor job orders from start to finish. Export summaries for easy sharing and maintain complete privacy with local data storage.

**Highlights:** Customer management, Structured measurement profiles, Job order tracking, Fitting log recording, Shareable text summaries, 100% offline functionality, No data collection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AiChatPDF free?

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

### Is NeedleLog free?

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

### Do AiChatPDF or NeedleLog have ads?

AiChatPDF shows ads; NeedleLog does not.

### Which is updated more often, AiChatPDF or NeedleLog?

AiChatPDF ships an update every 7 months, and NeedleLog every 4 days. Most recently, AiChatPDF was updated on October 3, 2026 and NeedleLog on October 16, 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.*