# APPA Training Institutes vs Sentinel DNA

The clearest difference is review sentiment: APPA Training Institutes at 100% against Sentinel DNA's 0%. APPA Training Institutes also leads on rating (5.0 vs 2.3). Sentinel DNA's advantage is update cadence (monthly vs every 3 months) and iOS requirement (12.0 vs 16.6). 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.

APPA Training Institutes holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 100% of APPA Training Institutes's written reviews are positive against 0% of Sentinel DNA's.

APPA Training Institutes ships an update every 3 months, Sentinel DNA monthly. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | APPA Training Institutes | Sentinel DNA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/appa-training-institutes/id1260188353/reviews)** | [2.3 (6 ratings)](https://appshunter.io/ios/app/sentinel-dna/id1493351872/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 55 MB | 23 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [AMERICAN PROBATION AND PAROLE ASSOCIATION, INC.](https://appshunter.io/developer/1382256976) | [Sentinel Offender Services LLC](https://appshunter.io/developer/1491225869) |

## What reviewers say

### APPA Training Institutes

[App page](https://appshunter.io/ios/app/appa-training-institutes/id1260188353)

This app provides access to workshops, networking opportunities, and information about community corrections. It serves as a mobile companion for a national training institute, offering details on programs, projects, and current issues.

**Highlights:** Workshop access, Networking opportunities, Information on community corrections issues, Exhibit hall details, Special session schedules

**Features:** Apple Wallet

**In-app purchases:** none


### Sentinel DNA

[App page](https://appshunter.io/ios/app/sentinel-dna/id1493351872)

This app provides field officers with instant access to critical participant information, including court orders, historical records, and equipment assignments, directly from their smartphones. It ensures essential data is available anytime, anywhere for efficient mission operations.

**Highlights:** Access court ordered requirements, View historical records, Check assigned equipment, Mission critical information, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is APPA Training Institutes free?

APPA Training Institutes is free to download, with no in-app purchases.

### Is Sentinel DNA free?

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

### Which has better reviews, APPA Training Institutes or Sentinel DNA?

APPA Training Institutes is rated higher. APPA Training Institutes averages 5.0 out of 5 from 3 ratings, while Sentinel DNA averages 2.3 from 6 ratings.

### Do APPA Training Institutes or Sentinel DNA have ads?

Neither APPA Training Institutes nor Sentinel DNA shows ads.

### Which is updated more often, APPA Training Institutes or Sentinel DNA?

APPA Training Institutes ships an update every 3 months, and Sentinel DNA monthly. Most recently, APPA Training Institutes was updated on October 1, 2026 and Sentinel DNA on October 16, 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.*