MS Logger vs OpData
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MS Logger
This HIPAA-compliant app helps healthcare providers log procedures securely and efficiently. Export logs for billing, archiving, and research purposes. Offers various subscription plans for different usage needs.
- HIPAA-compliant logging
- Secure procedure entry
- Export logs for billing
- Archiving and research export
- Multiple subscription tiers
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MS Logger is a HIPAA-compliant application that allows healthcare providers to log their procedures quickly and securely, and export them to use for billing, archiving and research. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpData
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OpData-Drive is a logbook for doctors who operate or perform procedures. After each case you fill in a short form on your phone. The app keeps all your cases in one place, counts them for you and can write them to a spreadsheet in your own Google Drive. HOW IT WORKS 1. Sign in with Apple or Google, then choose your specialty and title. 2. After a case, tap New Operation and fill in the form: patient initials, age, sex, diagnosis, procedure and the details your specialty needs. 3. Your home screen, calendar and statistics update at once. Your logbook is ready whenever you need it for training records, a CV or an academic application. FORMS FOR 19 SPECIALTIES Neurosurgery, General Surgery, Orthopedics and Traumatology, Cardiovascular Surgery, Thoracic Surgery, Pediatric Surgery, Plastic Surgery, Urology, Ophthalmology, Obstetrics and Gynecology, Oral and Maxillofacial Surgery, Otorhinolaryngology, Emergency Medicine, Interventional Radiology, Anesthesiology, Internal Medicine, Cardiology, Dentistry and Pediatrics. Each form speaks the language of its specialty: target structure, classification, procedure type, implant and graft options change with your specialty. You can hide the fields you do not use. WORKS WITHOUT INTERNET Enter cases in the operating room without a signal. They sync in the background when you are back online. YOUR NUMBERS AT A GLANCE (PREMIUM) Today, this week, this month and this year; a calendar of every case; your most frequent diagnoses and procedures. Ask the ODD Statistics Assistant a question in plain words, such as "How many cases did I log this month?" YOUR OWN GOOGLE SHEET (PREMIUM) Link your Google account and every case is written to a spreadsheet in your own Google Drive. The sheet belongs to you: download it, share it or analyze it any time. TEAM (PREMIUM) Add the colleagues who scrubbed in as team members of the case. The record also appears in their logbook. PRIVACY AND SECURITY No patient names are collected. Only initials can be entered, and the field enforces this. Records on your device are encrypted with SQLCipher and every transfer to the server uses TLS. No ads, no analytics, no tracking. FREE AND PREMIUM Logging cases is free, and the free logbook shows your last 7 days. Premium adds statistics, the assistant, your Google Sheet, team sharing and your full history. Monthly and annual subscriptions are available. A 7-day free trial starts when you link your Google account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period; manage or cancel them in your App Store account settings. IMPORTANT OpData-Drive is not a medical device and does not diagnose, treat, cure or prevent any medical condition. It is a logbook that lets healthcare professionals keep their own case records. You are responsible for following your institution's privacy rules and the applicable regulations when you enter patient data. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.opdatadrive.com/en/privacy
Screenshots
Verdict
The clearest difference is update cadence: OpData at every 5 days against MS Logger's fortnightly. On price, ads, in-app purchases and device support 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. MS Logger sells 6 in-app purchases, starting at $6.99 per month and OpData sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
MS Logger ships an update fortnightly, OpData every 5 days. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.
| Parameter | MS Logger | OpData |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (9 ratings) — better | — |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Fortnightly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 57 MB |
| Age rating | 12+ | 12+ |
| Developer | MS LOGGER, INC | ZEYNEP DAG |
In-app purchases
MS Logger
- Moderate Monthly$6.991 Month
- Busy Monthly$9.991 Month
- Unlimited Monthly$14.991 Month
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- Moderate Yearly$49.991 Year
- Busy Yearly$99.991 Year
- Unlimited Yearly$149.001 Year
OpData
- OpData Premium Monthly$2.991 Month
- OpData Premium Annual$17.991 Year









