Side by side

DEF-ISL vs yoDGS

Both stand on sign language apps. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

yoDGS combines structured DGS lessons, dictionary lookup, practice activities, and progress tracking in a mobile format. Its free starting content is useful for trying the course, while full access requires a subscription with no published price.

Visit yoDGS

The facts

	DEF-ISL	yoDGS
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Android, iPhone	Android, iPhone
Lowest paid plan	Not published	Free or on request
Plans published	None	2
Maker	Not published	Not published
Website	def.org.in	yodgs.de
On sign language apps	#29 of 34	#25 of 34

DEF-ISL: what it does well

yoDGS: what it does well

Android and iOS apps
More than 100 lessons
Visual dictionary with over 1,400 entries
Quizzes, dialogues, grammar, and culture tips
Free modules available

What to know first

Premium requires a monthly subscription
Google Play labels it an early version
Device and usage data may be collected

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