ObCalc vs FlexPlus
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
ObCalc
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ObCalc puts the calculators, scoring tools, and reference charts that obstetrics, maternal-fetal medicine, and labor & delivery teams reach for every shift into one fast, offline-first app. Every formula is sourced to published guidelines (ACOG, SMFM, CMQCC, NICHD) and built as a clinical tool first ā clean inputs, clear interpretation, no clutter. OBSTETRICS ⢠Bishop Score ⢠Estimated Due Date ā LMP, ultrasound, conception, ovulation, or IVF transfer dating ⢠Pregnancy Re-dating (ACOG Committee Opinion 700) ⢠Pregnancy Weight Gain Tracker ⢠Urine Protein:Creatinine Ratio (UPCR) ⢠VBAC Success Calculator ā Grobman MFMU model ⢠VBAC at Delivery Admission Success Calculator ā Grobman MFMU model PERINATOLOGY / MFM ⢠CVR (CPAM Volume Ratio) ⢠Extremely Preterm Birth Outcome (NICHD) ⢠Fetal Biometry Suite ā Hadlock EFW, long-bone ratios, multi-panel z-scores and percentiles ⢠Intrauterine Transfusion (IUT) Volume Calculator ⢠MCA Doppler / PSV for Fetal Anemia ⢠Neonatal Morbidity Risk ⢠Ponderal Index ⢠GDM Insulin Dosing ⢠Life-Limiting Skeletal Dysplasia Screen ⢠Twin Discordance ⢠Umbilical Artery Doppler GENERAL ⢠Anion Gap ⢠Apgar Score ⢠BMI ⢠Iron Deficit ⢠Peak Flow ⢠Gestational Age (date difference) ⢠Maternal Sepsis Assistant (qSOFA / Sepsis-3) ⢠CMQCC Sepsis Screen THROMBOPHILIA ⢠VTE Anticoagulation Dosing (ACOG Practice Bulletin 196) GENETICS ⢠cfDNA PPV/NPV Calculator ⢠Nuchal Translucency Percentile WHY CLINICIANS CHOOSE OBCALC ⢠Offline-first ā no connection needed on L&D ⢠Fast, distraction-free interface ā no ads, no tracking ⢠One-time purchase. No subscription, no account required ⢠Regularly updated with new tools and guideline changes ⢠Built-in unit conversion and inline number-pad arithmetic on every input ObCalc is a clinical reference tool intended for use by licensed healthcare professionals. It does not replace clinical judgment, and results should be confirmed against current guidelines and your institution's protocols.
FlexPlus
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The Valere FlexPlus App allows licensed clinicians to initiate orders for patients, review order status, and dispense products to the patient. The clinician may also expedite the order through the application, by uploading a signed prescription and other order related documents. Key features of the FlexPlus application are: 1. FlexPlus user can login using User Id and Password and remember User Id for next login 2. FlexPlus user can create orders for patients 3. FlexPlus user gets instant push notification updates related to created orders 4. FlexPlus user can switch between facilities/hospitals 5. FlexPlus user can view inventory for current facility 6. FlexPlus user can view and manage received push notifications 7. FlexPlus user can dispense product to patients after approval
Screenshots
Verdict
The clearest difference is price: FlexPlus at Free against ObCalc's $2.99. FlexPlus also leads on update cadence (every 4 weeks vs every 3 months) and iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
FlexPlus is free to download; ObCalc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ObCalc ships an update every 3 months, FlexPlus every 4 weeks. The most recent releases landed on September 26, 2026 and September 14, 2026 respectively.
| Parameter | ObCalc | FlexPlus |
|---|---|---|
| Price | $2.99 | Free ā better |
| Update frequency | Every 3 months | Every 4 weeks ā better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod ā better |
| Requires iOS | 26.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 3 MB | 38 MB |
| Age rating | 17+ | 4+ |
| Developer | Code Nine Labs LLC | Valere Health, Inc |
In-app purchases
ObCalc
No in-app purchases
FlexPlus
No in-app purchases
Questions
Is ObCalc free?
Is FlexPlus free?
Do ObCalc or FlexPlus have ads?
Which is updated more often, ObCalc or FlexPlus?
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