Mr BioChem Lite vs D.O.S.E.R
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mr BioChem Lite
This app assists life science students with various biochemistry lab tasks. It offers tools for DNA sequence manipulation, protein calculations, chemical dilutions, gel recipes, buffer formulations, and safety information.
- DNA sequence conversion
- Restriction site finder
- DNA to protein translation
- Chemical concentration calculations
- SDS-PAGE gel recipes
- Buffer formulations
- Safety phrase access
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Get the FULL version for 50% OFF until the end of MAY. Mr. Biochem is the trusty lab partner of any life sciences student. Mr. Biochem can: - Convert DNA sequences into their reverse, complement or reverse-complement - Find restriction sites in given DNA sequences - Translate DNA sequence into protein - Show you the codon table and the periodic table - Calculate the protein concentration in your sample, based on the absorbance and the extinction coefficient of your protein - Calculate: - Dilutions - Serial dilutions - Molarity - Normality - Concentration in % w/w, % v/v, % w/v - Mass fraction - Mass concentration - Volume fraction - Mole fraction - Mole ratio - Mass ratio - Calculate recipe for SDS-PAGE stacking and resolving gels - Provide a set of recipes for commonly used buffers - Record new recipes, and select favorites - Help you work in a safe way, by providing quick access to the Safety/Risk phrases, the new Hazard/Precaucion phrases, and the old and new hazard symbols - Offer a list of approximately 280 restriction enzymes, together with their restriction sites - Provide useful links in the field On Youtube: http://www.youtube.com/watch?v=a_Ur_1p5hws
D.O.S.E.R
This app helps pre-med and pre-health students meticulously track academic, clinical, research, and extracurricular activities. It offers study tools and analytics to maintain discipline, consistency, and readiness for applications. Centralize all your progress in one streamlined platform.
- Hour logging for various activities
- Live session timers
- Study session tracking
- Progress analytics
- Consistency monitoring
- Goal tracking
- Custom tags and notes
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all-in-one progress tracker designed for pre-med and pre-health students balancing academics, studying, clinical experiences, research, volunteering, and long-term goals. Track every part of your journey in one organized system built to help you stay disciplined, consistent, and application-ready. Log hours across: • Clinical • Shadowing • Research • Volunteering • Leadership • Teaching • Employment • Extracurricular activities Use the built-in study and productivity tools to stay accountable throughout the semester while monitoring your consistency, progress, and performance over time. Whether you're preparing for exams, building stronger habits, or tracking experiences for future applications, you can centralize everything into one streamlined platform. Features include: • Fast hour logging • Live session timers • Study session tracking • Progress analytics and insights • Weekly activity trends • Streak and consistency monitoring • Goal tracking • Custom tags and notes • Clean and modern interface • Bulk import support • Duplicate session warnings Built for students pursuing: • Medical school • PA school • Dental school • Nursing school • Pharmacy school • Other healthcare pathways
Screenshots
Verdict
The clearest difference is rating: D.O.S.E.R at 5.0 against Mr BioChem Lite's 3.0. Mr BioChem Lite's advantage is iOS requirement (5.1.1 vs 17.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
D.O.S.E.R holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | Mr BioChem Lite | D.O.S.E.R |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 5.1.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Radu Turcas | Sahad Chowdhury |
Customer experience
Mr BioChem Lite
D.O.S.E.R
In-app purchases
Mr BioChem Lite
No in-app purchases
D.O.S.E.R
No in-app purchases









