This is a review of Flickr's stats, marking that the downside is that it only contains monthly information. The writer offers three other tools that can be used to garner info about Flickr's stats.
Lists 5 free analytics apps for instagram, including reviews of each: Statigram (web app), Followers + (iOSapp), InstaFollow (iOS app), SimplyMeasured (web based, free in exchange for 1 tweet about the app), Nitrogram (web app). Also mentions Webstagram an app that generates network metrics on most popular hashtags, keywords, etc.
This article is geared towards travel destination marketing but the piece I found interesting could be applicable to us in evaluaing Pinterest vs. Instagram is this:
Pinterest
"Agencies that select to use Pinterest usually have a collection of brand attributes to reinforce a key message. In addition, Pinterest is great to reach out to individuals who have common interests and will prompted to repin (or share) great images.
Instagram
Instagram is the ideal platform to encourage discussions based on the posted content and execute clever hashtag marketing strategies.
Although the two tools basically address a fundamental need to share visual content, Pinterest and Instagram can allow tourism organizations to reach promotional objectives in different ways. It is a question of assessing the elements of a social media strategy which may include:
Branding objectives
Understanding the needs of the individuals in the target market (Please read, "Why The Future of Tourism Depends On Millennials and Market Research?")
Generating the appropriate amount content
A plan to post curated content on the designated applications
Utilizing the correct key metrics to evaluate the success of the campaign on Pinterest, Instagram or both
"UK-based Retweet lets you sync up your Twitter account to find which of your tweets were the most popular, a great trend-tracking tool for organizations to gauge their Twitter strategy success."
This tool can monitor a few different social media apps simultaneously, but that feature isn't free. https://wiki.twentyfeet.com/display/TF/Twitter+Metrics - specifically lists the ways TwentyFeet measures/records Twitter content: Reputation Indicators, Lists, Conversations, Followers, etc.
"A central repository of learning materials crafted for educational institutions using Chromebooks and Google Apps for EDU. In the left navigation pane you will notice the categories of Google apps and resources cataloged for your convenience. Each section is succinct, yet comprehensive. This model is designed to empower educators with clear tools, resources, and learning examples that will impact the culture of instruction and digital literacy in the classroom."
Free tool that provides quick analysis of any twitter account. Used ODULearns as an example in this link. Could be a good, free source of instant feedback/info.