Propofol Dreams vs AnSo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Propofol Dreams
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Propofol is one of the most commonly wasted drugs in the operating theatre. It is toxic to the aquatic environment, bioaccumulates up the food chain and is not readily degraded in nature. Propofol Dreams is a simple app designed to help anaesthetists minimise propofol wastage during TIVA. Propofol Dreams has three main modes: (1) Volume Mode estimates the volume of propofol required for a given case based on the TCI model, patient parameters and the estimated duration of surgery. This guides the volume of propofol to draw up at the beginning of a case. (2) Duration Mode estimates how long a syringe of propofol will last at the current infusion rate. This guides the volume of propofol to draw up in the middle of a case. (3) EleMarsh Mode makes the Marsh Model on your TCI pump behave like the Eleveld Model through adjusting the input weight using our novel algorithm. We are passionate about environmental sustainability in anaesthesia and we hope to tackle these issues through technology. Please help us make Propofol Dreams better! For comments and feedback, please email propofoldreaming@gmail.com. Thank you and happy propofol dreaming! Important Note: Propofol Dreams is designed for the purposes of education and environmental sustainability only. It is not a dosage calculator and does not give advice about the clinical care of patients. Propofol Dreams cannot be used to replace infusion pumps or sound clinical judgment.
AnSo
This app helps anesthesiologists quickly identify sonoanatomy for various procedures. It offers detailed images, landmark sketches, and innervation data for nerve blocks, along with tips from experienced clinicians. It covers regional anesthesia and other perioperative ultrasound uses.
- Sonoanatomy identification
- Landmark sketches
- Nerve block innervation
- Ergonomic positioning guides
- Perioperative ultrasound uses
- Clinical tips and notes
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AnSo is a convenient resource designed to help anaesthetists identify common sonoanatomy, in a time efficient manner, within the busy operating theatre. It has been created by practicing anaesthetists with an interest in teaching ultrasound and regional anaesthesia. Please note that a subscription is required to access all content for this app. You can purchase a monthly or yearly subscription after signing in. AnSo: - provides multiple examples of the sonoanatomy as every individual is different, - provides landmark sketches useful for developing pattern recognition of landmark structures, and for trainees to draw in exams, - displays the cutaneous, motor, osseous and visceral innervation of the numerous nerve blocks and fascial plane blocks now available, facilitating appropriate block choice and knowledge of expected results, - allows combining and comparing block innervation, - allows images to be flipped to display both L and R sided orientation, - demonstrates functional ergonomics with patient, ultrasound screen and proceduralist positioning essential for efficient practical performance, - provides block notes with sonoanatomy tips and practical tips from experienced clinicians which can be invaluable to the learner. AnSo is not only for regional anaesthesia but includes many other perioperative uses of ultrasound relevant to the anaesthetist, such as: - airway - gastric antrum - vascular access - spine - transthoracic echo - lung signs AnSo contains: - over 250 ultrasound images with over 1500 sonoanatomy colour overlays, - innervation images, - ergonomic images, - landmarks pattern sketches, - loops when required for dynamic sonoanatomy, - notes with tips from experienced clinicians. AnSo helps identify not only the target structures but all the surrounding sonoanatomy. This more comprehensive understanding of the sonoanatomy helps detect anatomical variability, improves the safety and efficacy of procedures, and facilitates learning and teaching. AnSo has been designed in a format that can be easily updated and distributed to users so the information can be kept as current as possible in this rapidly expanding field. AnSo does not require an internet connection to run. Once downloaded all data is stored on your device so it will work anywhere and images will display without any delay. It can be useful both in and out of theatre, when performing procedures, and when learning or teaching ultrasound. There is no advertising in the app making it pleasant and time efficient to use. Terms of use can be found at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download AnSo today and always have access to this sonoanatomy and nerve block resource.
Screenshots
Verdict
The clearest difference is in-app purchases: Propofol Dreams at none against AnSo's 4. AnSo's advantage is update cadence (fortnightly vs every 5 weeks) and chart position (#126 vs unranked). On price, ads, device support 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. AnSo sells 4 in-app purchases, starting at $0.49 per month. Propofol Dreams asks for nothing beyond the download.
Propofol Dreams ships an update every 5 weeks, AnSo fortnightly. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.
| Parameter | Propofol Dreams | AnSo |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.5 (31 ratings) — better |
| Positive reviews | — | 40.4% of reviews |
| Number of ratings | — | 31 — better |
| Update frequency | Every 5 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Subscription |
| Best chart rank | — | #126 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 24 MB | 72 MB |
| Age rating | 17+ | 17+ |
| Developer | George Zhong | Sumo Enterprises Pty Ltd |
In-app purchases
Propofol Dreams
No in-app purchases
AnSo
- AnSo one month subscription14 Days trial$0.491 Month
- AnSo Pro one year subscription1 Month trial$5.991 Year
- AnSo Pro subscription1 Year trial$5.991 Year
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- AnSo one year subscription14 Days trial$5.991 Year
Questions
Is Propofol Dreams free?
Is AnSo free?
Do Propofol Dreams or AnSo have ads?
Which is updated more often, Propofol Dreams or AnSo?
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