CERI vs Feature Function Class
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CERI
Explore Indonesian folklore through an interactive storybook. This app features charming graphics, engaging activities, and moral values, offering a fun and educational experience for young readers.
- Interactive storybook
- Charming graphics
- Moral values
- Engaging activities
- Multi-language support
- Page flipping options
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App Store Best Interactive Indonesian Folklore Book **#1 Top Education App in Indonesia** **From the creators of Kancil dan Buaya** CERI (Cerita Rakyat Indonesia) will bring you closer with many unique characters and animals through interactive and inspiring story. A fun story with a lot of very good moral values to share with. Now, Ceri proudly presents "Lutung Kasarung dan Purbasari". Purbasari the kind-hearted princess was cheated by her own sister. She was exiled to a jungle. Luckily, she met Lutung Kasarung, the lost monkey who accompanied her there. Would Purbasari be able to come back to the Kingdom and take her place as the rightful queen? Enjoy the story of "Lutung Kasarung dan Purbasari" and let's find out what happened inside the story. CERI is very passionate on serving you with our best services, and these are what we have to offer for you: * charming and outstanding graphics * good story * friendly story plot * interesting activities * attractive background music and sound effect * Multi language * Appstore connected library And our latest inventions: * joyful CERI theme song * you can either swipe or press the button to flip the pages * choose your own favourite pages to start the story Love CERI! Leave a review and rate the app to share this amazing folklore book to more families. More stories coming soon. Check it out at http://ceri.qajoo.com/ Become a fan of our Facebook page: http://facebook.com/qajoostudio Follow our Twitter: http://twitter.com/qajoostudio and please kindly visit our website: http://www.qajoo.com ________________________________________ - Note: This is a preview version, the full version is unlockable via in-app purchase
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.
Screenshots
Verdict
The clearest difference is rating: Feature Function Class at 5.0 against CERI's 1.0. Feature Function Class also leads on in-app purchases (none vs 1). CERI's advantage is iOS requirement (6.0 vs 18.6). On price, ratings volume, update cadence and ads 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
Both are free to download. CERI sells 1 one-off in-app purchase. Feature Function Class asks for nothing beyond the download.
Feature Function Class holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
CERI ships an update every 5 weeks, Feature Function Class every 2 months. The most recent releases landed on October 7, 2026 and September 30, 2026 respectively.
| Parameter | CERI | Feature Function Class |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 65 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | VARNION TECHNOLOGY SEMESTA, PT | JudeWorks |
Customer experience
CERI
Feature Function Class
In-app purchases
CERI
- Unlock Full Version$2.99
Feature Function Class
No in-app purchases
Questions
Is CERI free?
Is Feature Function Class free?
Which has better reviews, CERI or Feature Function Class?
Do CERI or Feature Function Class have ads?
Which is updated more often, CERI or Feature Function Class?
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