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Hawkeye vs Retra

Both stand on eye tracking software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Hawkeye

Free plan iPhoneWeb

Hawkeye provides gaze visualizations and participant-level data for several types of interface studies. Its mobile camera requirement and free-plan session limit are worth checking first.

Visit Hawkeye

Retra

Free plan Android

Retra combines GBA emulation, patching, library tools, and local save management in one Android app. Note the sideload distribution, unsupported DS files, and requirement to provide your own commercial game backups.

Visit Retra

The facts

HawkeyeRetra
Free planYesYes
Open sourceNot publishedNot published
Runs oniPhone, WebAndroid
Lowest paid planStarter Plan: $39.99 a monthNot published
Plans published2None
MakerNot publishedNot published
Websitenew.usehawkeye.comgithub.com
On eye tracking software#5 of 27#9 of 27

Hawkeye: what it does well

  • Tests websites and images without code changes.
  • No dedicated eye-tracking hardware required.
  • Combines results across testers.
  • CSV exports include gaze, UI, and touch data.
  • Free plan includes one project and five sessions.

What to know first

  • iPhone and iPad app requires a TrueDepth camera.
  • Free plan is limited to five sessions.
  • Starter costs $39.99 a month.

Retra: what it does well

  • Free Android app
  • Imports GBA, ZIP, UPS, IPS, and BPS files
  • Includes local saves, backups, timeline, and rewind
  • Touch, keyboard, and gamepad controls
  • ROMs and saves stay on the device

What to know first

  • Does not support Nintendo DS .nds files
  • Commercial ROMs are not included
  • APK releases are sideload test builds, not Play Store releases
  • Cloud synchronization is not release-ready

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