# Phyto — user reviews > 14 indexed App Store user reviews of Phyto by Gano Technologies LLC, rated 4.80/5 from 6 ratings. - Source: https://appshunter.io/ios/app/phyto/id333237649/reviews - App overview in markdown: https://appshunter.io/ios/app/phyto/id333237649.md - Rating breakdown: 5★ 5 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 0 ## Most critical reviews (10 lowest-rated) ### 1/5 — Not opening :( *2017-08-17* Looks like a very useful app but it won't open once downloaded. Maybe needs to be updated. Bummer. ### 1/5 — iPhone 7 incompatible *2017-06-08* Downloaded this app on my iPhone and it wouldn't open. Pissss offfff ### 1/5 — Not opening *2016-11-02* I downloaded the app and have not been able to get it to open. It turns black screen and brings me back to the home page every time. I've deleted it and re-downloaded but still I have no luck. Any suggestions? ### 2/5 — Not enough information *2015-08-17* I would like a description of each specimen. A labeled drawing would also aid in identification. ### 3/5 — Interesting app but would like more details *2012-02-19* This app has nice pictures and the pronunciation is an interesting addition but it would be so much more valuable if it also had some natural history info about the plankton and where it is found, etc. ### 4/5 — Well designed and very helpful! *2019-02-01* This is a great app; really helpful, and well designed. I love the flash card options and the guide progression starting with general body shape and working into more detail! It would be really helpful to see what magnification is used for photos, and of course to see more species added to this app overall. However, overall this is a great app and very appreciated!!! ### 4/5 — Useful and fun *2012-04-21* This is a great tool if you are in the field and don't have access to an ID guide. Flash card game is fun if you are waiting your turn at the dentist or DMV! Distribution range information would be a nice addition. ### 4/5 — Good work *2011-11-24* I thought to myself this would be a good idea for an app but you guys beat me to it! ### 4/5 — Great app. Any chances of freshwater species? *2011-07-11* Great programme. It would be great if freshwater species were also included. I can't find an app for that at the mo. ### 5/5 — Great app *2026-02-10* Would love to see other common species like nanno tetra t-iso-rhodo-cryptomonas ## Most praised reviews (4 highest-rated) ### 5/5 — Excellent start! *2020-09-03* I really love the easy picture references and flash cards and pronunciations. I just really wish there were more freshwater species included. There’s very few but the concept is stellar. ### 5/5 — Handy with potential *2009-10-23* It would be great if you could upload images to a site and get them reviewed for correct ID and then update the app as the database increses. Would be useful to break it up into diatoms, dinoes and flagellates. If you could upload to a site you could geotag images to locations and dates. It might be useful to researchers looking at distributions. Top App ### 5/5 — Phyto introduces you to the tiny world of phytoplankton *2009-10-16* Based on information from the Phytoplankton Monitoring Network developed by the National Oceanic and Atmospheric Administration (NOAA), this application does what it says it does: it is an identification guide for phytoplankton and includes spoken pronunciation of each type, and multiple photos taken with a light microscope. In flash card mode, you can use it to hone your skills at phytoplankton identification. A little app for little creatures. ### 5/5 — Handy app: would love limno spp added *2009-10-09* Great little app. Thanks for providing it. I'd love to see estaurine and freshwater species added. I'd also like to see macroscale pics of blooms for bloom-forming species, as I don't usually have a microscope handy in the field. A little surprised to see important coastal groups like Trichodesmium missing - perhaps that's regional? --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*