Feature Function Class vs Discrete Trial
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Feature Function Class
This visual teaching tool aids educators, therapists, and parents in developing receptive language and categorization skills. It uses a proven methodology to present images and test identification based on features, functions, and classes. The app offers a large image library, smart filtering, and customization options for personalized training.
- 300+ pre-tagged images
- Smart filtering by feature, function, or class
- Shuffle and Reorder modes for varied practice
- Adjustable grid size for difficulty scaling
- Save and load custom image sets
- Import and tag personal photos
- Create custom tags
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Feature Function Class is a powerful visual teaching tool designed for educators, therapists, and parents working on receptive language and categorization skills. Built specifically for Feature-Function-Class (FFC) training, this app streamlines the process of presenting images and testing identification skills. WHAT IS FEATURE-FUNCTION-CLASS? Feature-Function-Class is a proven teaching methodology used in Applied Behavior Analysis (ABA) therapy and early childhood education. It helps learners identify and categorize objects by: - Features — What you SEE (color, shape, parts) - Functions — What it DOES or how you USE it - Classes — What CATEGORY it belongs to HOW IT WORKS Select any Feature, Function, or Class filter and the app instantly displays a set of images — with one image always matching your selected criteria. This creates natural teaching opportunities and quick identification trials. KEY FEATURES ◆ 300+ Pre-Tagged Images Start immediately with a library of high-quality, royalty-free images professionally tagged with features, functions, and classes. ◆ Smart Filtering Filter by Feature (spots, red, round), Function (cuts, you sit on it), or Class (animals, furniture, food). Combine filters to narrow results. ◆ Shuffle Mode Keep training fresh — Shuffle loads new images while always maintaining one that matches your filter. Cycle through your entire library without losing focus on the training target. ◆ Reorder Mode Test true recognition — Reorder keeps the same images but shuffles their positions. Perfect for confirming the learner recognizes the target, not just its location on screen. ◆ Adjustable Grid Size Scale difficulty from 2 to 8 images. Start simple and increase complexity as skills improve. ◆ Save & Load Sets Working with a client over multiple sessions? Save your image set once and reload it instantly. Maintain consistency across training sessions. ◆ Import Your Own Photos Add personal photos and tag them with custom features, functions, and classes. Include familiar objects, family members, or items specific to your learner's environment. ◆ Custom Tags Create your own feature, function, and class tags to extend the built-in library and personalize training. DESIGNED FOR - ABA Therapists & BCBAs - Speech-Language Pathologists - Special Education Teachers - Early Intervention Specialists - Parents supporting skill development at home Whether you're running discrete trials, building receptive vocabulary, or working on categorization skills, Feature Function Class gives you the tools to create effective, engaging training sessions.
Discrete Trial
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Discrete Trial is a target library for ABA-based assessment and instruction. It includes a variety receptive and expressive language skills such as: Following Directions, Motor Imitation, Object Imitation, Imitation of Fine Motor Skills, Echoics of Sounds and Words, Tacting Objects, Tacting Actions, Object Identification, Action Identification, Intraverbals, WH-Questions, Function, Feature, Class. Each folder has per-target data collection, performance summaries, and exportable session data. Reduce the amount of material preparation you need to do. Now your materials are organized, compact, and portable with the Discrete Trial app.
Screenshots
Verdict
The clearest difference is price: Feature Function Class at Free against Discrete Trial's $14.99. Discrete Trial's advantage is update cadence (every 5 days vs every 2 months) and iOS requirement (16.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Feature Function Class is free to download; Discrete Trial costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Feature Function Class ships an update every 2 months, Discrete Trial every 5 days. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.
| Parameter | Feature Function Class | Discrete Trial |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 101 MB | 245 MB |
| Age rating | 4+ | 4+ |
| Developer | JudeWorks | Samantha Cooper |
In-app purchases
Feature Function Class
No in-app purchases
Discrete Trial
No in-app purchases
Questions
Is Feature Function Class free?
Is Discrete Trial free?
Do Feature Function Class or Discrete Trial have ads?
Which is updated more often, Feature Function Class or Discrete Trial?
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