Screen2AH Support

Screen2AH turns the post-workout screen on your cardio equipment into an Apple Health workout entry.

Contact

Email: screen2ah@laud.llc

For bug reports, please include:

• Your iPhone model and iOS version
• The Screen2AH version (find it in Settings → About)
• What you were trying to do
• What happened instead
• If relevant, the make and model of the equipment you were photographing

You can also use the "Send Feedback" button in Settings, which pre-fills an email with useful diagnostic information (never your health data).

Quick start

1. Open Screen2AH. The camera opens automatically.
2. Point the camera at the summary screen of your cardio equipment, framing the numbers you care about.
3. Tap the shutter button.
4. If Screen2AH is confident about the reading, it saves automatically and shows a confirmation. If not, it shows a review screen — check the numbers, tap any field to edit, then tap Save to Health.
5. Open the Apple Health app to see your workout.

Frequently asked questions

Which equipment does Screen2AH work with?

Screen2AH works with most cardio equipment that displays post-workout summary screens: treadmills, ellipticals, stationary bikes, rowers, and stair climbers. It reads the numbers visible on the screen, so anything that shows duration, distance, calories, heart rate, and/or power in a fairly standard layout should work. If you use unusual equipment and Screen2AH struggles to read it, please send us a photo with the brand and model — we log every reported case and use them to improve the reader.

What data gets saved to Apple Health?

Depending on what your equipment shows: workout type, duration, distance, active energy burned (calories), average and maximum heart rate, and average power in watts. Screen2AH also saves the workout's start and end times so it sits correctly in your Health timeline.

Why does Screen2AH sometimes show a review screen instead of saving automatically?

When Screen2AH isn't fully confident it read the numbers correctly — for example, if a value looks out of the normal range, or if the text recognition was low-confidence due to lighting or glare — it shows the review screen so you can verify before anything is written to Apple Health. This is intentional: bad data in Apple Health is much harder to fix than a five-second review before saving.

Can I turn off the review screen and always save automatically?

Partly. Settings → Capture → "Auto-save when confident" lets Screen2AH save automatically when it is confident; disable it to always show the review screen. There is no option to bypass the review screen entirely, because we prioritize data quality over speed.

Are my photos and workout data stored somewhere?

Photos and extracted data are stored locally on your iPhone only, and are automatically deleted after 30 days. Your Apple Health workouts remain in Apple Health as long as you keep them there. Nothing ever leaves your device. See the Privacy Policy for details.

How do I delete my data?

• One history entry: open History, swipe left on the entry, tap Delete.
• All history: Settings → Data → Delete all history.
• Workouts in Apple Health: open Health → Browse → Workouts, tap the workout, then Delete.
• Screen2AH entirely: delete the app from your iPhone. All local data is removed.

Can I use Screen2AH on Apple Watch?

Not in the current version. A Watch companion may come in a future release.

Does Screen2AH work without internet?

Yes. Screen2AH does not use the internet at all. Everything runs on your iPhone.

Can I export my history?

Settings → Data → Export history exports all extracted workout data as a JSON file that you can save or share. Photos are not included in the export to keep file sizes small.

The reading was wrong. What do I do?

On the review screen, tap any field and correct it before saving. If Screen2AH consistently misreads a specific piece of equipment, please email us a photo of that equipment's summary screen (obscure any personally identifiable information first). Real-world examples are the best way to improve the reader.

Can I use Screen2AH to log workouts done outside of gym equipment?

Screen2AH is designed for equipment displays. For runs, walks, or rides logged by other apps or by an Apple Watch, use those sources — they'll appear in Apple Health alongside anything Screen2AH saves.

Is Screen2AH free?

Yes.

Who makes Screen2AH?

Screen2AH is developed by Laud LLC, an independent engineering consultancy in Chicago. Learn more at laud.llc.

Known limitations

• Equipment variety: Screen2AH is tested on common cardio equipment, but the diversity of gym equipment displays is vast. Unusual layouts, segment displays, or heavily branded overlays may not read accurately. The review screen catches these.
• Lighting: dim lighting, direct sunlight, or reflections on the equipment display can reduce reading accuracy. Try to fill the frame with the screen and avoid glare.
• Heart rate: Screen2AH captures average and maximum heart rate as shown on the equipment. Equipment grip sensors are less accurate than a chest strap or Apple Watch. If you have a Watch, its data is generally more reliable.
• Alpha status: Screen2AH is in early alpha. Bugs, misreads, and rough edges are expected. Please report them.

Version history