FLEX vs Kattalo
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
FLEX
This interactive educational tool helps teachers visualize basic math concepts like fractions and number lines. It allows for the creation of independent student projects and supplements math training programs. Enhance understanding of mathematical skills with various visual aids.
- Number lines visualization
- Fraction tools
- Number bonds
- Number blocks
- Create student projects
- Mathematical symbols
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FLEX - Math Tools is an interactive tool for teaching basic mathematics. It contains several different tools to enhance the understanding of mathematical concepts. With FLEX - Math Tools, you as a teacher visualize new mathematical concepts with your students using for example number bonds, fractions and number lines. You can also create projects for your students that they can independently work with. The app can also be used as a supplement for students who train with Number Quest Flex. With FLEX - Math Tools you as a teachers can facilitate understanding regarding the specific mathematical skills that are trained in the program. Please visit our website for more information. FLEX - Math Tools contains the following tools: โข numbers โข mathematical symbols โข number lines โข fractions - Rectangles โข number bonds โข number blocks โข images
Kattalo
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Kattalo trains the skills that reading and writing actually demand โ letter sounds, phonics, spelling, and word comprehension. Not as flashcards. As exercises learners want to repeat. The app suits learners in special education settings, those with dyslexia or other learning differences, and anyone who needs more time with the fundamentals โ regardless of year group. Voice instructions and a stripped-back interface let learners work independently. Exercises span letter recognition, phonological awareness, spelling, and creative writing โ from first letters to more advanced text production.
Screenshots
Verdict
The clearest difference is update cadence: Kattalo at every 9 days against FLEX's every 19 months. FLEX's advantage is device support (3 vs 1) and iOS requirement (9.3 vs 15.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
FLEX ships an update every 19 months, Kattalo every 9 days. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.
| Parameter | FLEX | Kattalo |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Every 19 months | Every 9 days โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPad, iPod โ better | iPad |
| Requires iOS | 9.3 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 7 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Leripa AB | Kattalo AB |
In-app purchases
FLEX
No in-app purchases
Kattalo
No in-app purchases









