# 21 CFR - Food and Drugs (LawStack Series) — user reviews > 15 indexed App Store user reviews of 21 CFR by Tekk Innovations LLC, rated 3.00/5 from 1 ratings. - Source: https://appshunter.io/ios/app/21-cfr-food-and-drugs-lawstack-series/id325723778/reviews - App overview in markdown: https://appshunter.io/ios/app/21-cfr-food-and-drugs-lawstack-series/id325723778.md - Rating breakdown: 5★ 0 · 4★ 0 · 3★ 1 · 2★ 0 · 1★ 0 ## Most critical reviews (10 lowest-rated) ### 1/5 — Not a good DEA reference *2013-01-29* App shows that it has a reference tab for the Drug Enforcement Administration (DEA). With DEA being the enforcement side of both the Title 21 and the CSA...This app should have a listing of all Title 21 violations/penalties. I don't think this app should have a DEA tab if it's not going to reference these types of things. **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 2/5 — Overpriced *2012-09-07* Basics. Few features for the $. Needs addition of study guide. **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 3/5 — Currently not worth this price - But outstanding customer service *2009-10-08* Benefit: offline access to the CFR For $17.99 + tax, I would have expected a lot more. For example (suggested areas of improvement): 1. Add functional links between sections so as to allow browsing from section to section (with back to the last page feature) 2. Highlight the search terms on the result pages to find then easier 3. Add navigation feature within result page to jump search term occurences in the page 4. Show the search results by sequential number of the CFR section (currently seems to appear in a random order) 5. Allow to perform searches within a specified volume 6. Provide link to the Federal Register references at the end of the pages to allow online access through Safari 7. Keep history of previous searches to avoid having to retype search terms Conclusion: App needs significant re-work. However, I provided this feedback to Tekk Innovations and got a personable answer within minutes! The business model of Tekk Innovations is top notch. Update is upcoming with some of the features mentioned above (not all but it's a start)... ### 4/5 — Great for work pocket reference! *2012-09-20* Quick, easy, convenient way to confirm regs! **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 4/5 — Great aap *2012-08-13* Has all the regs and keeps updated. **Developer response:** So happy that you are enjoying the app :) Please try our Flaship app Lawstack where you can also find many other contents. Thanks for you support! ### 5/5 — Code of Federal Regulayions *2015-03-20* I've used this Ap since it became available on my iPhone and iPad. Excellent ap. The search feature is especially relevant when looking for a specific issue when time is of the essence. The updates are timely and I still use the application as a regulatory consultant. Keep up the good work. **Developer response:** So happy to hear your feedback. Stay tuned for the latest updates :) ### 5/5 — Great reference *2013-10-16* If you deal in the regulatory world this is a great reference. Easy to use with decent search capability. I've had no technical problem with any of the updates or loading like some other applications. **Developer response:** So happy that you are enjoying the app. Stay tuned for the ongoing updates :) ### 5/5 — I use this app every day! *2013-07-09* Great app and very helpful to me in my job as a Regulatory Scientist for a large food company. It's very easy to find things; I like it better than the online CFR. **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 5/5 — Best CGMP source App *2013-05-12* Easily searchable complete Title 21CFR. Use it daily in my compliance work. **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 5/5 — Great app with the latest updates *2013-04-25* N **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ## Most praised reviews (5 highest-rated) ### 5/5 — Perfect for my needs. *2012-08-17* Easier to navigate than the federal web version. Continuous updates beat getting the hard copy hands down. **Developer response:** So happy that you are enjoying the app :) Please try our Flaship app Lawstack where you can also find many other contents. Thanks for you support! ### 5/5 — Awesome *2012-06-26* Great to have it on my iPad **Developer response:** So happy that you enjoy the app. Please try our flagship app LawStack where you can also find many other contents. Thanks for your support! ### 5/5 — Outstanding! *2012-05-03* The suggestions by another reviewer would be nice to have, but I'm happy to have the regulations available anytime and anywhere I have my iPad. **Developer response:** So happy that you enjoy the app. Please try our flagship app LawStack where you can also find many other contents. Thanks for your support! ### 5/5 — Awesome! *2011-04-29* This beats the website, where you can't search a subtitle for a certain word or phrase. It's great for meetings at work where you have to back yourself up with a evidence from the FDA! **Developer response:** Thanks for your feedback! Have you tried our flagship app LawStack? For the best experience, I recommend you to download it and access your 21 CFR subscription there. Please download it here: https://apple.co/2S3VYFV ### 5/5 — There is an APP for that *2009-09-16* If you work in a regulated field, this app is must have. To not have it means your cheap or shortsighted. --- *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 2026-06-11.*