- Transparent gives the most detailed graphs to show how well you pronounce. Each time you say a word or phrase, you can see an overall score, and graphs on how the vowels, consonants, pitch, etc. sounded in 76 languages.
- Passport to Languages / Learn to Speak has a simple pronunciation score in 6 languages, without detailed graphs, but they have more vocabulary than Transparent. Any of these first programs costs $20-$40 for permanent ownership of courses and scoring.
- Pronunciator is $30 per month, has good scoring in 72 languages, and is easier to use than Transparent, though its graphs are not as detailed as Transparent's. It has at least as much vocabulary as Learn to Speak. It offers free samples of the pronunciation scoring, which most do not.
- Two more are expensive and hard to use, according to reviews: Tellmemore and Rosettastone. Tellmemore scores pronunciation generously. I got undeservedly high scores in Spanish. A graph shows volume and an extra line for pitch to help you learn intonation. This would be especially good for Mandarin, which is one of the languages they teach. Reviewers say that in sentences, you must speak each word separately to get a good score.
- Babbel gives you too little feedback about pronunciation and then moves on to reading and writing. It scores good pronunciation on a scale 50-100, but gives you no score or feedback on poor pronunciation and goes on to the next screen before you get the pronunciation right. They let you say each word just once each time through a lesson.
- Two others are free, but only teach intermediate English: EnglishCentral and GoEnglishMe.
- Berlitzonline is expensive, and no samples or reviews are available.
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