Comparison

Viz.ai vs Synapse Evals

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

Head to head
About

Viz.ai

This AI-powered telehealth platform assists clinicians in detecting critical diseases like stroke and hemorrhages using advanced imaging. It automates CT perfusion and provides mobile imaging with HIPAA-compliant messaging to streamline workflows across specialties.

Highlights
  • AI-powered disease detection
  • Automated CT perfusion imaging
  • Mobile imaging capabilities
  • HIPAA-compliant messaging
  • Remote installation
  • Workflow synchronization
Features
Read full description

A Telehealth Platform from the World’s Leading AI Healthcare Company. Viz.ai, which uses artificial intelligence to detect diseases like large vessel occlusions and intracerebral hemorrhages, advanced imaging to automate CT perfusion. Viz.ai also provides mobile imaging and HIPAA-compliant messaging to help synchronize workflow across multiple specialties for diseases like stroke. Fast and easy to install remotely, our plug-and-play solution is designed to help clinical teams during these challenging times. Viz LVO, Viz CTP and Viz ICH are regulated as a medical device and intended for use by trained clinicians. Indications for use are available here: https://www.viz.ai/indications-for-use/

About

Synapse Evals

This app allows attending physicians to provide verbal feedback to residents, which is then transcribed and delivered instantly. Program directors can track compliance and generate summaries, streamlining the evaluation process for medical residency programs.

Highlights
  • Voice-activated feedback recording
  • Automatic transcription of evaluations
  • Real-time compliance dashboard
  • AI-powered evaluation summaries
  • Resident feedback history
  • Secure data privacy
Features
Read full description

Synapse Evals is the voice-first evaluation platform built for medical residency programs. Attending physicians record feedback verbally — no typing, no forms, no friction. Synapse transcribes the recording and delivers it directly to the resident. Program directors get a real-time compliance record without the administrative burden. DESIGNED FOR HOW ATTENDINGS ACTUALLY WORK Voice recording takes seconds between cases. No keyboards, no login hassles, no end-of-month scramble to remember what happened. The result: residents get more feedback, faster, and of higher quality. FOR RESIDENTS Receive feedback immediately after it's recorded. Review every evaluation submitted for you across your residency — timely, specific, and coming from attendings who aren't bogged down by paperwork. FOR PROGRAM DIRECTORS A live dashboard showing every evaluation submitted across your program. Generate AI-powered summaries across large volumes of evaluations to build cases or prepare for resident round tables. Export-ready documentation for ACGME compliance. Manage your full roster of residents and evaluators. BUILT FOR PRIVACY Voice recordings are transcribed and immediately deleted — only the text is stored. Feedback stays within your program. No data is shared across programs or institutions. Synapse Evals is for attending-to-resident clinical education feedback only. It is not a patient record system and should never be used to record or transmit patient information.

Screenshots

Viz.ai4 screens
Synapse Evals4 screens

Verdict

The call

The clearest difference is rating: Synapse Evals at 5.0 against Viz.ai's 4.2. Synapse Evals also leads on iOS requirement (15.1 vs 17.0). Viz.ai's advantage is ratings volume (36 vs 2). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Synapse Evals holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Viz.ai has 36 ratings behind it against 2, so its average is the more settled of the two.

Scorecard3 real differences · 7 level
Viz.ai versus Synapse Evals: the parameters behind the verdict, then further details
ParameterViz.aiSynapse Evals
PriceFreeFree
Rating4.2 (36 ratings)5.0 (2 ratings) — better
Positive reviews14.3% of reviews—
Number of ratings36 — better2
Update frequencyFortnightly—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size56 MB39 MB
Age rating12+4+
DeveloperViz.ai, Inc.Timothy Gaertner

In-app purchases

None

Viz.ai

No in-app purchases

None

Synapse Evals

No in-app purchases

Questions

Is Viz.ai free?
Viz.ai is free to download, with no in-app purchases.
Is Synapse Evals free?
Synapse Evals is free to download, with no in-app purchases.
Which has better reviews, Viz.ai or Synapse Evals?
Synapse Evals is rated higher. Viz.ai averages 4.2 out of 5 from 36 ratings, while Synapse Evals averages 5.0 from 2 ratings.
Do Viz.ai or Synapse Evals have ads?
Neither Viz.ai nor Synapse Evals shows ads.

Other comparisons