# Expertimer

> Portable lab notebook with timer, chemical tracking, and automated reporting for researchers. (iPhone/iPad app by Marco Ranocchiari.)

- Source: https://appshunter.io/ios/app/expertimer/id601941804 (this page in markdown: same URL + `.md`)
- Developer: [Marco Ranocchiari](https://appshunter.io/developer/601941807)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 13 MB
- Languages: Arabic, Catalan, Czech, Danish, Dutch, English, Finnish, French, German, Greek and 21 more
- Released: 2013-03-25
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/expertimer/id601941804/reviews.md

## What is Expertimer?

Expertimer is the portable lab notebook with a timer, chemicals, integrated photos, videos and preset notes, which allow researchers tracking lab experiments and writing lab reports automatically. Expertimer is the perfect portable lab notebook.

Features:
- Multiple reactions in parallel with stand-alone alarms
- Addition of chemicals with stoichiometry and PubChem search
- Calculate moles, weight, and volume
- View your reaction scheme
- History track with integrate photos and preset notes
- Email history track (time changes, notes and photos)
- Export history track to iTunes
- Interchangeable stopwatch and countdown
- Archive for all reactions
- iCloud to share reactions between devices and with the whole world.

You should use Expertimer to:
- Follow your reactions in parallel
- Better manage your research time
- Get promptly alerted when your reaction is finished
- Measure the REAL time of your reaction (+/- 1 sec)
- Easily check your research progress
- Enhance reaction reproducibility
- Share your research progress with your peers
- Write compelling reports for your supervisor
- Write experimental part for papers and thesis chapters
 
Why you should trust us:
- We are chemists working for international research institutes and the pharmaceutical industry
- We have years of experience in basic research and students supervision
- Expertimer has already been beta-tested by bachelor, master and PhD students

Do you have any suggestions or enquires?
We strive to improve Expertimer for our end users and develop new features based on your needs. 
We would love to hear your feedback.  Do not hesitate to contact us.

## Key features

- Parallel reaction tracking with alarms
- Chemical addition with stoichiometry
- Moles, weight, and volume calculations
- Integrated photos and videos
- Automated history tracking and reporting
- iCloud sharing for reactions
- Interchangeable stopwatch and countdown

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Ad-Free | $0.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/expertimer/id601941804/reviews.md

### 1/5 — Owner

*2015-01-03, version 2.1.0*

Crashes on start up.

**Developer response:** This issue is fixed in the current version. Enjoy.

## Frequently asked questions about Expertimer

### What is Expertimer?

Expertimer is a portable lab notebook designed for researchers. It includes a timer, chemical tracking with stoichiometry, and integrated photos/videos to help automate experiment tracking and lab report writing.

### What devices does Expertimer support?

Expertimer is available for iPhone, iPad, and iPod devices.

### How often is Expertimer updated?

The app was last updated on December 1, 2015, with version 3.0.0. Users can expect updates to improve features and address needs based on feedback.

### What is the age rating for Expertimer?

Expertimer has an age rating of 4+, making it suitable for a wide range of users.

### Can I share my research progress with others using Expertimer?

Yes, Expertimer allows you to share your history track via email and export it to iTunes. It also utilizes iCloud to share reactions between devices and with others.

### Does Expertimer have ads?

No, Expertimer does not contain advertisements. It is a free app with optional in-app purchases.

### How accurate is the reaction timing in Expertimer?

Expertimer measures the real time of your reaction with an accuracy of +/- 1 second, ensuring precise data for your experiments.

### What kind of calculations can Expertimer perform?

Expertimer can calculate moles, weight, and volume. It also assists with chemical additions by incorporating stoichiometry and PubChem search.

## Version history (last 5 releases)

### 3.0.0 — 2015-12-01

This app has been updated by Apple to display the Apple Watch app icon.

Expertimer has been completely redesigned and is now compatible with iPad for a full lab notebook experience. The new Expertimer allows:
- The design of chemical reaction and amounts in an easy and efficient way. You can search for molecular weight and IUPAC name in PubChem and add reaction schemes, calculate mols, masses, volumes and concentrations for maximum productivity.
- The upload and download of reactions to the private iCloud account to share them between your devices.
- The upload and download of reactions to the public iCloud to share your reaction with the whole world
Enjoy!

### 2.1.1 — 2015-01-04

Fixed an issue that would crash the app on startup on iOS 7 devices

### 2.1.0 — 2014-10-10

Fixed issued that crashed the app while exporting to pdf on some devices

Compatible with iOS8

Minor bug fixes

### 2.0.0 — 2014-05-28

**FINALLY YOU CAN ADD CHEMICALS TO YOUR REACTION**
- add chemicals to your reaction, calculate moles, grams and milliliters.
- Search in PubChem IUPAC name and molar mass
- You can export now in PDF your reaction

### 1.1.0 — 2013-10-28

Major update.

Now with Expertimer you can:
- add videos to your timer
- add notes to a photo or a video

We also fixed some minor bugs

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*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 2026-06-10.*