# MOVI SOS vs Bolt Reader®

The clearest difference is in-app purchases: MOVI SOS at none against Bolt Reader®'s 1. Bolt Reader®'s advantage is update cadence (every 5 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

MOVI SOS ships an update every 4 months, Bolt Reader® every 5 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | MOVI SOS | Bolt Reader® |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/bolt-reader/id1554066006/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 11 MB | 24 MB |
| Requires iOS | 14.5 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MOVISAFE Latin America](https://appshunter.io/developer/1444745899) | [Transmission Dynamics](https://appshunter.io/developer/1554066008) |

## What reviewers say

### MOVI SOS

[App page](https://appshunter.io/ios/app/movi-sos/id1444745900)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is MOVI SOS free?

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

### Is Bolt Reader® free?

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

### Do MOVI SOS or Bolt Reader® have ads?

Neither MOVI SOS nor Bolt Reader® shows ads.

### Which is updated more often, MOVI SOS or Bolt Reader®?

MOVI SOS ships an update every 4 months, and Bolt Reader® every 5 weeks. Most recently, MOVI SOS was updated on October 3, 2026 and Bolt Reader® on October 3, 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.*