# Strflow vs PDF Indexer

The clearest difference is in-app purchases: PDF Indexer at none against Strflow's 4. PDF Indexer also leads on update cadence (every 2 days vs fortnightly) and iOS requirement (16.4 vs 18.0). Strflow's advantage is ads (none vs shown) and ratings volume (51 vs 2). On price, rating and device support there is nothing between them.

Both are free to download. Strflow sells 4 in-app purchases, starting at $1.49 per month. PDF Indexer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Strflow against 5.0 for PDF Indexer. That said, the two scores are not equally well evidenced: Strflow has 51 ratings behind it against 2, so its average is the more settled of the two.

Strflow ships an update fortnightly, PDF Indexer every 2 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Strflow | PDF Indexer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (51 ratings)](https://appshunter.io/ios/app/strflow-text-yourself-notes/id6468486339/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pdf-indexer/id6799589624/reviews)** |
| Number of ratings | **51** | 2 |
| Positive reviews | 97.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Freemium | **Ad-supported** |
| Size | 73 MB | 53 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shingo Eguchi](https://appshunter.io/developer/1709973302) | [MATTHEW BYONG BAE](https://appshunter.io/developer/6776132813) |

## What reviewers say

### Strflow

[App page](https://appshunter.io/ios/app/strflow-text-yourself-notes/id6468486339)

This app offers a unique chat-style interface for taking notes, organizing them with tags, and setting reminders. It integrates seamlessly with iOS features and ensures your data is secure and exportable.

**Highlights:** Chat-style note-taking, Timeline organization, Tagging system, Todo lists and reminders, Quick capture from anywhere, Rich text editor, iCloud sync and backup

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Strflow Plus (Monthly) | $1.49 | per month |
| Strflow Plus (Annual) | $14.99 | per year |
| Strflow Plus (Lifetime, Subscriber) | $27.99 | one-time |
| Strflow Plus (Lifetime) | $37.99 | one-time |


### PDF Indexer

[App page](https://appshunter.io/ios/app/pdf-indexer/id6799589624)

This app creates fast navigation for PDFs by turning title-to-page mappings into searchable indexes. It allows you to import mappings from various file formats and opens directly to the mapped page within the PDF. All data is stored locally on your device for privacy.

**Highlights:** Search across multiple indexed PDFs, Exact, prefix, substring, and alias matching, Jump directly to mapped pages, Import mappings from CSV, JSON, XLSX, and text, Page-offset calibration, Mapping correction and export, Local-first data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Strflow free?

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

### Is PDF Indexer free?

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

### Which has better reviews, Strflow or PDF Indexer?

PDF Indexer is rated higher. Strflow averages 5.0 out of 5 from 51 ratings, while PDF Indexer averages 5.0 from 2 ratings.

### Do Strflow or PDF Indexer have ads?

PDF Indexer shows ads; Strflow does not.

### Which is updated more often, Strflow or PDF Indexer?

Strflow ships an update fortnightly, and PDF Indexer every 2 days. Most recently, Strflow was updated on October 27, 2026 and PDF Indexer on October 31, 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.*