# Bolt Reader® vs Photo PDF

The clearest difference is in-app purchases: Photo PDF at none against Bolt Reader®'s 1. Photo PDF also leads on ratings volume (214 vs 7) and iOS requirement (12.0 vs 14.0). Bolt Reader®'s advantage is rating (4.7 vs 4.4). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Bolt Reader® sells 1 one-off in-app purchase. Photo PDF asks for nothing beyond the download.

Bolt Reader® holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Photo PDF has 214 ratings behind it against 7, so its average is the more settled of the two.

Bolt Reader® ships an update every 5 weeks, Photo PDF every 2 months. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Bolt Reader® | Photo PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/bolt-reader/id1554066006/reviews)** | [4.4 (214 ratings)](https://appshunter.io/ios/app/photo-pdf-converter-and-printer/id1555702588/reviews) |
| Number of ratings | 7 | **214** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 24 MB | 16 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Transmission Dynamics](https://appshunter.io/developer/1554066008) | [Fitness Labs](https://appshunter.io/developer/1151052132) |

## What reviewers say

### Bolt Reader®

[App page](https://appshunter.io/ios/app/bolt-reader/id1554066006)

This application provides users with real-time bolt tension data through intuitive bar graphs. It is specifically designed to work with Bolt-Cap Module devices from Transmission Dynamics, helping users quickly identify screws needing attention.

**Highlights:** Real-time bolt tension information, Bar graph data visualization, Identify screws requiring attention, Designed for Bolt-Cap Module devices, Works with Transmission Dynamics hardware

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $49.99 | one-time |


### Photo PDF

[App page](https://appshunter.io/ios/app/photo-pdf-converter-and-printer/id1555702588)

Transform your images into PDF documents with precise resizing and custom layouts. Print your creations directly from your device to a wireless printer.

**Highlights:** Convert photos to PDF, Select up to 20 photos, 40 standard page sizes, Custom page sizes, Custom photo layout, Crop images, Export to PDF, Print wirelessly

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

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Reader® free?

Bolt Reader® is free to download, with in-app purchases available.

### Is Photo PDF free?

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

### Which has better reviews, Bolt Reader® or Photo PDF?

Bolt Reader® is rated higher. Bolt Reader® averages 4.7 out of 5 from 7 ratings, while Photo PDF averages 4.4 from 214 ratings.

### Do Bolt Reader® or Photo PDF have ads?

Neither Bolt Reader® nor Photo PDF shows ads.

### Which is updated more often, Bolt Reader® or Photo PDF?

Bolt Reader® ships an update every 5 weeks, and Photo PDF every 2 months. Most recently, Bolt Reader® was updated on October 24, 2026 and Photo PDF on October 29, 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.*