# Buffers > Portable buffer calculator and reference for chemical, biochemical, and biological research. (iPhone/iPad app by Akkyra Systems.) - Source: https://appshunter.io/ios/app/buffers/id306089755 (this page in markdown: same URL + `.md`) - Developer: [Akkyra Systems](https://appshunter.io/developer/300710095) - Category: Utilities, Education - Price: Free - Age rating: 4+ - Requires: iOS 14.1 · 0 MB - Languages: American English - Released: 2009-02-25 - Data updated: 2026-06-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/buffers/id306089755/reviews.md ## What is Buffers? Buffers is a tool for designing buffer solutions for pH control. Buffers is useful both as a handy reference of available buffering agents and as an accurate, portable buffer calculator for chemical, biochemical and biological research. With Buffers you can: - Select from 42 commonly used buffering agents - Generate accurate recipes covering broad pH, concentration and temperature ranges - Access detailed information about each available buffer system - E-mail, text, copy or print recipes To use Buffers, just choose a buffering agent and target pH along with the desired solution volume, temperature and buffer concentration. The recipe is calculated with the push of a button. Buffers uses a sophisticated algorithm that is more versatile and potentially more accurate than simple calculations based on the Henderson-Hasselbalch equation. An information page for each buffering agent lists the pKa, appropriate pH range, and temperature dependence, along with molecular weights and CAS numbers for the acid and base forms and other pertinent information. Bring your buffer calculations into the lab where you need them! ## Key features - 42 common buffering agents - Accurate recipe generation - Broad pH, concentration, temperature ranges - Detailed buffer system information - Shareable recipes (email, text, copy, print) - Sophisticated calculation algorithm ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/buffers/id306089755/reviews.md ### 5/5 — A great aid in lab *2016-01-24, version 1.5.0* This app is extremely useful for rapidly doing buffer calculations in the lab. Great features and easy to use. Highly recommended for use by students and researchers alike. ### 3/5 — Somewhat accurate, fairly useful *2014-03-03, version 1.4* But the recipes supplied are not spot on. Be ready to make some acid or base adjustments. Still, a neat little app though. ### 3/5 — Useful! Some features lacking.. *2013-11-13, version 1.4* I use this app as a training tool for starting researchers to prepare buffers from very user friendly recipe. Recipes are great! The e-mail and print functions do not work and there is no support for the app to correct this. ### 2/5 — Not enough buffer solutions *2013-09-26, version 1.4* While it is useful to determine if very, very basic buffers work properly at a certain pH, it has a very limited selection of buffers. It's probably useful for general chemistry students, but that's about it. ### 1/5 — Don't waste your money *2010-10-15, version 0* This app may be useful if you only use the buffers in the list, which seems to be a splattering across science. There is no molarity or dilution calculator. AND you can not add any buffers even without the ph calculations. SO if there are buffers you need to make that are not on the limited list you will still need to reference where ever you have them now. So why complicate things with having recipes in multiple locations. ### 5/5 — Nice app *2010-07-05, version 0* Easy to use. Very handy. ## Frequently asked questions about Buffers ### What is Buffers used for? Buffers is a tool designed for creating buffer solutions for pH control in chemical, biochemical, and biological research. It acts as both a calculator for precise recipes and a reference for commonly used buffering agents. ### Does Buffers have ads? No, Buffers does not contain advertisements. The application is completely ad-free, allowing for an uninterrupted user experience. ### What information does Buffers provide for each buffering agent? For each buffering agent, Buffers lists its pKa, appropriate pH range, and temperature dependence. It also includes molecular weights and CAS numbers for both the acid and base forms, along with other relevant details. ### On which devices can I use Buffers? Buffers is available for iOS devices, including iPhone, iPad, and iPod. It is designed to be a portable tool for use directly in the lab. ### How does Buffers calculate buffer recipes? Buffers uses a sophisticated algorithm for its calculations, which is designed to be more versatile and potentially more accurate than simple Henderson-Hasselbalch equation methods. Users input the buffering agent, target pH, solution volume, temperature, and buffer concentration. ### How often is Buffers updated? The latest version of Buffers is 1.7.1, which was last updated on December 27, 2022. This indicates a relatively stable release cycle for the application. ### Can I share the buffer recipes generated by Buffers? Yes, you can easily share the buffer recipes created with Buffers. The app allows you to e-mail, text, copy, or print the generated recipes for convenience. ### What is the age rating for Buffers? Buffers has an age rating of 4+, making it suitable for a wide range of users, including younger students and professionals in the scientific field. ## Version history (last 5 releases) ### 1.7.1 — 2022-12-27 Dark Mode support Support for variable text size ### 1.7.0 — 2022-08-02 Refreshed for iOS 15/16 Now free! ### 1.6.0 — 2019-04-09 Updated for iOS 12 and the latest devices ### 1.5.0 — 2015-02-27 - Updated for iOS 8 - Improved accuracy for some buffers - Added Succinate and Tartrate buffers - E-mail, text, copy or print recipes ### 1.4 — 2012-05-10 - Updated for iPad Retina display ## Apps similar to Buffers | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lab Hack Tools](https://appshunter.io/ios/app/lab-hack-tools/id1599512433) | — | $1.99 | Utilities | | [Lab Mate — Molarity & Dilution](https://appshunter.io/ios/app/lab-mate-molarity-and-dilution/id1493317050) | 5.0 (5) | $6.99 | Utilities | | [Bunny Counter](https://appshunter.io/ios/app/bunny-counter/id6458646501) | 5.0 (1) | Free | Utilities | | [Appumate](https://appshunter.io/ios/app/appumate/id1667449557) | — | Free | Utilities | | [APPOOK](https://appshunter.io/ios/app/appook/id6503256671) | — | Free | Utilities | | [Grow Calc: Plant Light Meter](https://appshunter.io/ios/app/grow-calc-plant-light-meter/id6751297015) | — | Free | Utilities | ## More apps by Akkyra Systems - [CalcKit](https://appshunter.io/ios/app/calckit/id321006774) All apps by Akkyra Systems: https://appshunter.io/developer/300710095 ## Related topics [akkyra systems](https://appshunter.io/ios/topics/akkyra-systems) · [buffers](https://appshunter.io/ios/topics/buffers) --- *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.*