Learn abacus and mental arithmetic through step-by-step tutorials and engaging games. Progress through 55 stages to master calculations and unlock new levels. Designed by experts for children aged 5 and up.
4.0(8 ratings)
FreeIn-App Purchases
Best apps like The Saltmarsh App
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4.6 avg rating
6 free apps
Updated July 2026
Whether you want more options like The Saltmarsh App or a completely different take on the same concept, our curated list of 7+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
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Contribute to global seagrass conservation by reporting your sightings. Your data helps researchers understand seagrass meadows, their distribution, and threats, enabling targeted conservation efforts worldwide.
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This app provides an interactive way to take the classic Stroop Test, measuring cognitive flexibility and processing speed. It offers customizable tests, immediate performance feedback, and data export for further analysis. Designed for ease of use on mobile devices, it's a fun tool for cognitive skill enhancement.
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