# Bolt Reader® vs Peco Douwes

The clearest difference is in-app purchases: Peco Douwes at none against Bolt Reader®'s 1. On price, update cadence, ads and device support there is nothing between them.

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

Bolt Reader® ships an update every 5 weeks, Peco Douwes every 6 weeks. The most recent releases landed on June 4, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Bolt Reader® | Peco Douwes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/bolt-reader/id1554066006/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 24 MB | 15 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Transmission Dynamics](https://appshunter.io/developer/1554066008) | [Lizard Apps BV](https://appshunter.io/developer/813507312) |

## 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 |


### Peco Douwes

[App page](https://appshunter.io/ios/app/peco-douwes/id6447574734)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Reader® free?

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

### Is Peco Douwes free?

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

### Do Bolt Reader® or Peco Douwes have ads?

Neither Bolt Reader® nor Peco Douwes shows ads.

### Which is updated more often, Bolt Reader® or Peco Douwes?

Bolt Reader® ships an update every 5 weeks, and Peco Douwes every 6 weeks. Most recently, Bolt Reader® was updated on June 4, 2026 and Peco Douwes on September 14, 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.*