I want to track what position my website shows in search engines for particular keywords. Moz seem to have this option, however it has many other features, that I do not need. I do not want to pay for the additional features. Which is the best tool rank tracking?
The best tool for keyword rank tracking within budgetary constraints is SerpStat with its free plan. However, it is suitable for you only if your requirements do not exceed 30 queries per day and 10 results per report. Otherwise, you should consider upgrading to its Plan A or Plan B depending on your requirement. Another free solution is ProRankTracker which allows 20 terms and 2 URLs.
The most balanced solution is SerpBook which is available for as little amount as $9.95/Month and allows 50 keywords and domains.