# Sandbook vs Escalator Field Command

The clearest difference is in-app purchases: Sandbook at none against Escalator Field Command's 2. Sandbook also leads on ratings volume (126 vs 1). Escalator Field Command's advantage is rating (5.0 vs 4.6) and update cadence (daily vs weekly). On price, ads and device support there is nothing between them.

Both are free to download. Escalator Field Command sells 2 in-app purchases, starting at $9.99 per month. Sandbook asks for nothing beyond the download.

Escalator Field Command holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Sandbook has 126 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 78% of Sandbook's written reviews are positive against 100% of Escalator Field Command's.

Sandbook ships an update weekly, Escalator Field Command daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sandbook | Escalator Field Command |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (126 ratings)](https://appshunter.io/ios/app/sandbook-natural-voice-reader/id6745732885/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/escalator-field-command/id6756789866/reviews)** |
| Number of ratings | **126** | 1 |
| Positive reviews | 77.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | **Free** | Freemium |
| Size | 271 MB | 57 MB |
| Requires iOS | 18.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SmashMelon LLC](https://appshunter.io/developer/1895995887) | [Mike Dangerfield](https://appshunter.io/developer/1862060736) |

## What reviewers say

### Sandbook

[App page](https://appshunter.io/ios/app/sandbook-natural-voice-reader/id6745732885)

This app converts text into natural-sounding speech using an on-device model. Read ePub, PDF, and TXT files, type or paste text, or even read webpages aloud. Export audio files for offline listening with complete privacy.

**Highlights:** On-device text-to-speech, Reads ePub, PDF, TXT files, Type or paste text, Read webpages aloud, Export audio files, Privacy protection

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

**In-app purchases:** none


### Escalator Field Command

[App page](https://appshunter.io/ios/app/escalator-field-command/id6756789866)

This professional tool helps escalator mechanics work faster and stay organized with on-device data. It features a searchable code reference, route management, CAT1 testing tools, document storage, time logging, and PDF reporting.

**Highlights:** Searchable code reference, Route and unit management, CAT1 testing tools, Offline document storage, Time logging and reporting, PDF report generation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is Sandbook free?

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

### Is Escalator Field Command free?

Escalator Field Command is free to download, with in-app purchases available.

### Which has better reviews, Sandbook or Escalator Field Command?

Escalator Field Command is rated higher. Sandbook averages 4.6 out of 5 from 126 ratings, while Escalator Field Command averages 5.0 from 1 ratings.

### Do Sandbook or Escalator Field Command have ads?

Neither Sandbook nor Escalator Field Command shows ads.

### Which is updated more often, Sandbook or Escalator Field Command?

Sandbook ships an update weekly, and Escalator Field Command daily. Most recently, Sandbook was updated on October 25, 2026 and Escalator Field Command on October 24, 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.*