# ODOT Work Zone Pocket Guide vs ACI Certification Verify

The clearest difference is rating: ODOT Work Zone Pocket Guide at 3.5 against ACI Certification Verify's 2.3. ACI Certification Verify's advantage is update cadence (every 4 days vs every 19 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ODOT Work Zone Pocket Guide holds the better App Store score, 3.5 against 2.3. Both are backed by a comparable volume of ratings — 4 and 7 respectively.

ODOT Work Zone Pocket Guide ships an update every 19 months, ACI Certification Verify every 4 days. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ODOT Work Zone Pocket Guide | ACI Certification Verify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/odot-work-zone-pocket-guide/id909406255/reviews)** | [2.3 (7 ratings)](https://appshunter.io/ios/app/aci-certification-verify/id1467421101/reviews) |
| Number of ratings | 4 | **7** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 41 MB | 55 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Ohio Department of Transportation](https://appshunter.io/developer/1034284574) | [American Concrete Institute](https://appshunter.io/developer/506106957) |

## What reviewers say

### ODOT Work Zone Pocket Guide

[App page](https://appshunter.io/ios/app/odot-work-zone-pocket-guide/id909406255)

This app provides a summary of traffic control device guidelines from the Ohio Manual of Uniform Traffic Control Devices. It covers basic principles, standard devices, application guidelines, and flagging procedures for work and incident management areas.

**Highlights:** Summarizes OMUTCD and MUTCD guidelines, Describes standard traffic control devices, Provides application guidelines, Includes typical application diagrams, Offers information on proper flagging

**Features:** macOS Compatibility

**In-app purchases:** none


### ACI Certification Verify

[App page](https://appshunter.io/ios/app/aci-certification-verify/id1467421101)

Verify ACI certifications using name or ID. Find the number of certified professionals in a specific area. Access a database of over 400,000 certified individuals.

**Highlights:** Verify by name, Verify by certification ID, Find certified individuals in an area, Access large database of certified professionals

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

**In-app purchases:** none


## Frequently asked questions

### Is ODOT Work Zone Pocket Guide free?

ODOT Work Zone Pocket Guide is free to download, with no in-app purchases.

### Is ACI Certification Verify free?

ACI Certification Verify is free to download, with no in-app purchases.

### Which has better reviews, ODOT Work Zone Pocket Guide or ACI Certification Verify?

ODOT Work Zone Pocket Guide is rated higher. ODOT Work Zone Pocket Guide averages 3.5 out of 5 from 4 ratings, while ACI Certification Verify averages 2.3 from 7 ratings.

### Do ODOT Work Zone Pocket Guide or ACI Certification Verify have ads?

Neither ODOT Work Zone Pocket Guide nor ACI Certification Verify shows ads.

### Which is updated more often, ODOT Work Zone Pocket Guide or ACI Certification Verify?

ODOT Work Zone Pocket Guide ships an update every 19 months, and ACI Certification Verify every 4 days. Most recently, ODOT Work Zone Pocket Guide was updated on October 9, 2026 and ACI Certification Verify on October 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.*