Perinatal Calculators vs SimpleChime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Perinatal Calculators
This app provides essential obstetrical and perinatal calculators for healthcare providers. It aids in patient counseling with tools for assessing risks like extreme prematurity and Down Syndrome, and managing conditions like gestational diabetes. All calculations are performed locally without an internet connection.
- Extreme prematurity calculator
- VBAC success calculators
- Down Syndrome risk assessment
- Gestational diabetes insulin calculation
- CCAMs CVR calculator
- Offline functionality
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Perinatal and obstetrical calculators derived from published data to help guide obstetrical providers in counseling patients. Calculators include: -Extreme prematurity calculator for fetuses 22-25 weeks gestational age -VBAC success calculator based on information available for counseling in the office setting -VBAC success calculator based on factors on admission including cervical exam -Assessment of risk of having a child with Down Syndrome -Insulin calculation for initiating insulin in a gestational diabetic -CVR calculator for CCAMs -MCA doppler MOM calculator -Umbilical artery doppler reference range calculator -Preterm VBAC calculator -Insulin adjustment for corticosteroids calculator DOES NOT REQUIRE INTERNET CONNECTION to use, all done locally on iPhone or iPad
SimpleChime
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SimpleChime helps healthcare practices stay connected with patients through convenient, organized text messaging and voice calls. With the SimpleChime mobile app, providers and staff can manage patient conversations and calls on the go. Key features Multiple phone numbers: View and switch between the numbers your practice uses, all in one app. Message inbox: See patient messages for each number in a clear, organized inbox. Two-way messaging: Reply to patients quickly, similar to everyday texting. Voice calls: Place and manage voice calls in context with your messaging workflow (so you can move from text to call when it’s faster or clearer for the patient). Quick messages: Use customizable templates to speed up common replies. Whether you’re handling appointment requests, billing questions, prescription-related messages, or time-sensitive conversations that need a call, SimpleChime makes patient communication easier to manage anytime, anywhere.
Screenshots
Verdict
The clearest difference is update cadence: SimpleChime at fortnightly against Perinatal Calculators's monthly. Perinatal Calculators's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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.
Perinatal Calculators ships an update monthly, SimpleChime fortnightly. The most recent releases landed on September 24, 2026 and October 24, 2026 respectively.
| Parameter | Perinatal Calculators | SimpleChime |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Monthly | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 2 MB | 51 MB |
| Age rating | 4+ | 17+ |
| Developer | David Deschamps | Falkondata LLC |
In-app purchases
Perinatal Calculators
No in-app purchases
SimpleChime
No in-app purchases
Questions
Is Perinatal Calculators free?
Is SimpleChime free?
Do Perinatal Calculators or SimpleChime have ads?
Which is updated more often, Perinatal Calculators or SimpleChime?
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