Comparison

CTGi vs Tweris Mini

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CTGi

This app simulates a fetal heart rate monitor for obstetric training. It offers a realistic and economical platform for facilitators and students to learn and practice. Utilizing everyday technology, it provides an advanced simulation experience.

Highlights
  • Realistic fetal heart rate monitoring simulation
  • Economical training solution
  • Ideal for in-situ training
  • Advanced obstetric simulation
  • Built with everyday technology
Features
Read full description

CTGi provides an economical, highly advanced and realistic fetal heart rate monitor simulation package. Using just two iPads, the lightness and simplicity of CTGi makes it ideal for in-situ training. CTGi gives facilitators a great tool for training and students an incredibly realistic platform to learn from. CTGi offers obstetric simulation as you’ve never seen it before, built off technology you use every day.

About

Tweris Mini

Features
Read full description

Tweris Mini is the first app released by Tweris® team composed of practising doctors and committed developers who aim to provide doctors and midwives with an AI-based, simple hand-held tool to guide them to detect and manage peripartum fetal hypoxia while interpreting fetal heart rate traces. Tweris Mini picture analysis algorithm has been trained on 5000+ fetal heart rate traces from several countries labelled by a world-renowned expert, and helps to diagnose 12 different key aspects of Physiological Interpretation of CTG traces: - Normal (No evidence of hypoxic stress) - Gradually evolving hypoxia -compensated - Gradually evolving hypoxia -decompensated - Chronical hypoxia - Subacute hypoxia - Acute hypoxia - Tardy deceleration (utero-placental insufficiency) - Quickie deceleration (umbilical cord compression) - Zigzag pattern - Sinusoidal pattern -typical - Sinusoidal pattern -atypical (Poole Shark Teeth) - Unstable baseline For each picture analysis prediction, Tweris Mini provides its degree of certainty and management advice according to the international consensus guidelines on physiological interpretation of CTG produced by 44 experts from 14 countries. Tweris Mini also incorporates a user-friendly interface for questions and discussion related to the analysis of cardiotocography by the users. Features • Fetal hear rate trace picture analysis • Detection of different types of fetal hypoxia • Fetal heart rate trace classification according to the international consensus guidelines on physiological interpretation of CTG • Management advice to address the identified CTG feature, based on algorithms developed by experts on Physiological interpretation of CTG. • Conversational bot This app does not replace medical judgment. Any medical decision must be made by a qualified healthcare professional.

Screenshots

Tweris Mini3 screens

Verdict

The call

The clearest difference is device support: Tweris Mini at 3 against CTGi's 1. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CTGi ships an update every 3 months, Tweris Mini every 2 months. The most recent releases landed on September 1, 2026 and September 13, 2026 respectively.

Scorecard1 real difference · 8 level
CTGi versus Tweris Mini: the parameters behind the verdict, then further details
ParameterCTGiTweris Mini
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size23 MB48 MB
Age rating17+17+
DeveloperiSimulate Pty LtdTweris

In-app purchases

None

CTGi

No in-app purchases

None

Tweris Mini

No in-app purchases

Questions

Is CTGi free?
CTGi is free to download, with no in-app purchases.
Is Tweris Mini free?
Tweris Mini is free to download, with no in-app purchases.
Do CTGi or Tweris Mini have ads?
Neither CTGi nor Tweris Mini shows ads.
Which is updated more often, CTGi or Tweris Mini?
CTGi ships an update every 3 months, and Tweris Mini every 2 months. Most recently, CTGi was updated on September 1, 2026 and Tweris Mini on September 13, 2026.

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