Video analysis for coaches on iPhone and iPad. Step through a routine one frame at a time, mark it up, compare it with another, and send it back to the gymnast with your voice on it.
Free on the App Store · iPhone and iPad · Club plan from A$20 a month

Step and scrub frame by frame, or slow it right down, to see exactly where a skill goes wrong.
Angles with live degrees, lines, arrows and reference lines, right on top of the footage.
Side by side, or ghost one clip over another to see the difference at a glance.
Record your explanation over the clip and export it, drawings included, as a video to share.
Record straight into Invert Eye, ready to review on the spot.
Videos stay in the photo library of the iPhone or iPad that filmed them. Nothing is uploaded.


All of this is in the free app. It keeps nothing once you close it, and it doesn’t know your gymnasts. That’s what the club plan adds.
On a club device, every clip and its markings are still there next session, ready to pick up where you left off.
Tag a clip to a gymnast from your club’s roster in Invert Core. Search by gymnast, class or clip, or see one gymnast’s clips together.
Each family’s video consent is checked before a clip is tagged. A parent’s “no” can’t be overridden, and if the answer isn’t known, the app says no.
One club code sets up every phone and iPad your coaches use. There’s no charge per coach.
If a phone is lost or a coach leaves, we cut that device off. It loses the roster and consent records, and the club’s tagged clips go with them.
The videos stay on the device that filmed them. Only each clip’s details (whose skill it is, its name and the drawings) are kept, in Australia.
Film, step through, draw, compare, talk over and export. Nothing is kept between sessions, and gymnasts can’t be named.
Everything in the free app, kept and filed against your gymnasts, with video consent enforced. Every coach and every device. 14 days free, once per club.
Prices include GST. The club’s owner pays by card in its Core account, under Club → Plan; already on Core? Choose Invert Eye there. Once your club has it, we’ll send you your club’s code, and each coach enters it once in the app. GCA member club? A$13 a month: use the GCA code when you sign up, or email vaughn@invertsystems.com.au if you’ve already signed up.
All four together? Rotation Scheduler, ChalkScore, Invert Eye and GymBux as one subscription: A$58 a month, or A$45 a month for the first ten clubs, kept for as long as the club stays subscribed (GCA members A$38, or A$29 for the first ten). Choose it in Core after you sign up.
Yes. No account, no ads, no in-app purchases and no tracking. It just doesn’t keep anything between sessions.
Nowhere. It stays in the photo library of the iPhone or iPad that filmed it, like any other video. Invert Eye keeps a pointer to it, never a copy.
Yes. The footage sits in their camera roll under your club’s own policies. If a coach leaves, we cut their phone off and the club’s records go with it.
Not yet. Each clip stays on the phone or iPad that filmed it, so a coach sees the clips they filmed.
The app won’t tag that gymnast, and nobody at the club can override it. If the app can’t tell what the family said, it refuses anyway.
Film in Slo-Mo with the Camera app and add the clip to Invert Eye, then step through it frame by frame. Playback speed works on any clip.
No, iPhone and iPad only.
In your club’s Core account, under Club → Plan. The receipts and invoices are kept there too.
More: Support · App privacy policy