# LabCalPro > LabCalPro: Laboratory calculations for chemistry and physics. (iPhone/iPad app by iSheepSoft.) - Source: https://appshunter.io/ios/app/labcalpro/id326157941 (this page in markdown: same URL + `.md`) - Developer: [iSheepSoft](https://appshunter.io/developer/288613200) - Category: Reference, Productivity - Price: $1.99 - Rating: 4.80/5 from 4 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 9 MB - Languages: American English, French (France), German (Germany) - Released: 2009-08-21 - Data updated: 2026-08-18 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/labcalpro/id326157941/reviews.md ## What is LabCalPro? The Laboratory Calculator is an utility to calculate various parameter: - Mole Related Calculations: Calculation of molarities Conversion between gram and mole Determination of dilutions from stock solutions Conversion between ppm and molarity Calculation of dilutions (c1v1=c2v2) Conversions between amounts and masses or combinations thereof - Molecular Weight Calculations Molecular weight calculator for chemical formulas including support for stable isotopes - pH Calculations: Calculation of pH's of acids or bases Calculation of pH's of solutions of acids and bases Titration Curves - Centrifugation Related Calculations Calculation of g-force, RPM and rotor diameter ## Key features - Mole related calculations - Molecular weight calculator - pH calculations - Titration curves - Centrifugation calculations - Dilution calculations ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/labcalpro/id326157941/reviews.md ### 4/5 — Great app but needs to be updated *2025-11-03* This is a great app. A real lab utility app that is currently the only one of its kind. But its last update was 3 yrs ago and it’s buggy especially on the new OSes - it crashes at times. I’ve had to delete and reinstall twice. Please update the app so it runs smoothly again. Thank you! ### 5/5 — Used this app everyday for years *2018-08-09* I can’t say enough good about this app. Fantastic for quickly preparing buffers and dilutions. Saves tons of messy calculator work. ### 5/5 — Awesome *2011-02-25* This is a fantastic and very handy app for scientists. I highly recommended it!! ### 5/5 — Comment to jeffspc88 *2010-05-19* As the developer I am sorry that you had such a bad experience. The problem with mole converter was caused by a wrong variable which was set when you did exit the program. The next time you did start the program kDa instead of Da was displayed (or vice versa). Therefore you get mmoles instead of moles. You can test it by yourself by shaking your device to clear all fields. When you now enter the values the correct solution will be displayed. I have submitted an update (1.8.1) to fix this problem. The update will also address the slider issue. In cases when the value was zero it was not possible to change the unit. However thank you for your valuable feedback and I hope you give the program a second chance. ### 1/5 — Pro must mean 'Pro'totype *2010-05-17* Buggy sliders, erroneous calculations, and only slightly useful: The mole converter tells me that 2g of a 1Dalton compound = 2 mmoles (should be 2 moles) Most of the sliders that let you switch units don't allow you to select anything besides yM/yL or M/L. The slider just snaps between those two extremes and you can't select anything in between. The pH solution calculator probably works, but I wouldn't know because it's so difficult to figure out. I had to read the help document at the iSheepSoft site, and now I just wonder, Why would anyone need this? Maybe if you do a lot of novel buffer prep. Several calculations allow you to solve for a particular variable (ie, G, radius, RPM). It took me a few tries to verify that the button I was pushing should've been labled "Solve for:" G, radius, RPM. This is unclear at the beginning. The PPM converter doesn't help if you do volume/volume dilutions, only mass/mass is supported (though it has a nifty density correction feature!, so maybe you're supposed to back-calculate vol. from mass-density?) The molarity calculator appears to work, but it's not the most user friendly implementation, and for this I can use iPhone's calculator (as I'm a professional chemist). So it's only useful for centrifugation calculations and molarity, but I don't trust it now that I've seen it screw up a simple mole conversion. Sigh. I'm useing an iPhone 3G. Is this not 3G compatible? ### 5/5 — Great *2010-02-06* Awesome lab app for the student or professional! ## Frequently asked questions about LabCalPro ### What types of mole calculations does LabCalPro offer? LabCalPro can calculate molarities, convert between grams and moles, determine dilutions from stock solutions, convert between ppm and molarity, and perform c1v1=c2v2 dilutions. It also handles conversions between amounts and masses. ### Can LabCalPro calculate molecular weights for complex chemical formulas? Yes, LabCalPro includes a molecular weight calculator that supports chemical formulas and even accounts for stable isotopes, providing accurate calculations for a wide range of compounds. ### What pH-related calculations are supported by LabCalPro? LabCalPro supports calculating the pH of acids or bases, the pH of solutions containing both acids and bases, and generating titration curves for various chemical reactions. ### How does LabCalPro assist with centrifugation calculations? For centrifugation, LabCalPro can calculate g-force, RPM (revolutions per minute), and rotor diameter, simplifying the setup and analysis of centrifugation experiments. ### What is the price of LabCalPro? LabCalPro is a paid application, priced at $1.99. ### What devices is LabCalPro compatible with? LabCalPro is available for iPhone and iPod devices. ### How often is LabCalPro updated? The latest version of LabCalPro is 5.0, and it was last updated on May 17, 2022. ### Does LabCalPro have ads? No, LabCalPro is ad-free, providing an uninterrupted user experience for its calculations. ## Version history (last 5 releases) ### 5.0 — 2022-05-17 Minor bug fixes ### 4.5.4 — 2020-07-07 Minor Bug Fix ### 4.5 — 2020-05-13 Support for Dark Mode ### 4.2 — 2018-08-08 ChemCal: Number of favourite elements increased to 30 ### 4.0 — 2018-06-20 Better support for larger screen sizes ## Apps similar to LabCalPro | App | Rating | Price | Category | | --- | --- | --- | --- | | [Bugo AI: Bug Identifier](https://appshunter.io/ios/app/bugo-ai-bug-identifier/id6760263165) | — | Free | Reference | ## More apps by iSheepSoft - [LabCal](https://appshunter.io/ios/app/labcal/id288613197) - [NMBR](https://appshunter.io/ios/app/nmbr/id579275939) All apps by iSheepSoft: https://appshunter.io/developer/288613200 ## Related topics [labcalpro](https://appshunter.io/ios/topics/labcalpro) --- *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 2026-08-18.*