# FencingLab — AI Fencing Video Analysis

> AI-powered fencing video analysis for technique breakdown and progress tracking. (iPhone/iPad app by Langtian Du.)

- Source: https://appshunter.io/ios/app/fencinglab/id6758785773 (this page in markdown: same URL + `.md`)
- Developer: [Langtian Du](https://appshunter.io/developer/1155770837)
- Category: Sports, Utilities
- Price: $0.99 with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: Korean, German (Germany), European Spanish, American English, Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan), French (France)
- Released: 2026-02-28
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/fencinglab/id6758785773/reviews.md

## What is FencingLab?

FencingLab — AI Fencing Coach                                                                                                       
                                                                              
  Transform your fencing with AI-powered video analysis. Record or upload your bouts, and FencingLab breaks down your technique,      
  tracks your progress over time, and delivers personalized training recommendations.

  What FencingLab does:
  • Analyzes fencing videos using advanced AI to identify actions, timing, and technique
  • Tracks improvement across sessions with progress charts and skill scores
  • Provides tactical matchup analysis against specific opponents
  • Supports Foil, Épée, and Sabre
  • Works for athletes and coaches managing multiple fencer profiles

  AI Analysis Options:
  • Gemini AI — cloud-based analysis for detailed, high-quality feedback
  • Local AI — on-server processing with no third-party data sharing

  Subscription:
  FencingLab offers auto-renewable subscriptions that unlock Gemini AI analysis. A 7-day free trial with 5 complimentary credits is
  included at sign-up. Subscriptions are billed through your Apple ID. You can manage or cancel your subscription at any time in App
  Store Settings.

  Privacy:
  When Gemini AI is selected, your video is sent to Google's servers for analysis. Local AI keeps all processing on our servers with
  no third-party sharing. Your privacy choices are always in your control in the app settings.

  Terms of Use (EULA):
  https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- AI-powered video analysis
- Technique identification
- Progress tracking charts
- Personalized training recommendations
- Tactical matchup analysis
- Supports Foil, Épée, Sabre
- Multiple fencer profiles

## Pricing and in-app purchases

Base price: $0.99.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| FencingLab Yearly Subscription | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| AI Analysis Credit | $0.99 | one-time |
| 5 AI credits | $4.99 | one-time |
| 10 AI credits | $9.99 | one-time |
| 20 AI credits | $19.99 | one-time |


## Chart rankings

- #51 in Top Paid · Sports (US App Store)


## Frequently asked questions about FencingLab

### What fencing styles does FencingLab support?

FencingLab supports Foil, Épée, and Sabre fencing styles. This allows athletes and coaches across different disciplines to utilize the AI analysis features.

### How does FencingLab analyze fencing videos?

FencingLab uses advanced AI to analyze fencing videos, identifying actions, timing, and technique. Users can choose between cloud-based Gemini AI for detailed feedback or Local AI for on-server processing with no third-party data sharing.

### Can FencingLab track my improvement over time?

Yes, FencingLab tracks your improvement across sessions with progress charts and skill scores. This feature helps visualize your development and identify areas for further training.

### What are the subscription options for FencingLab?

FencingLab offers auto-renewable subscriptions that unlock Gemini AI analysis. Plans include a Monthly Subscription for $1.99/month and a Yearly Subscription for $19.99/year. A 7-day free trial with 5 complimentary credits is included at sign-up.

### How can I manage or cancel my FencingLab subscription?

You can manage or cancel your FencingLab subscription at any time in your App Store Settings. Subscriptions are billed through your Apple ID.

### Is FencingLab suitable for coaches managing multiple fencers?

Yes, FencingLab is designed for athletes and coaches managing multiple fencer profiles. This allows for centralized analysis and progress tracking for an entire team or group.

### What is the privacy policy for FencingLab's AI analysis?

When using Gemini AI, your video is sent to Google's servers for analysis. Local AI keeps all processing on our servers with no third-party sharing. Your privacy choices can be managed in the app settings.

### What devices is FencingLab available on?

FencingLab is available on iPhone and iPad. The app is rated for ages 4+.

## Version history (last 5 releases)

### 3.0 — 2026-08-27

New in FencingLab 3.0
1. AI Daily Training Plans
- Every day, the AI builds a personalized training target based on your recent video analyses.
- Two parts:
- Fencing drills — e.g. footwork ladders, bladework exercises, each with a description and duration/reps.
- Physical conditioning — e.g. jump rope, push-ups, agility work.
- The next day, the AI reviews your latest video to mark the previous target as met / partial / missed, and adapts the new plan from your actual progress.
2. Resumable Video Uploads
- Videos now get a stable, content-derived ID, so if an upload fails or is interrupted, retrying continues the same upload instead of starting over or creating a duplicate.
- Larger, more reliable uploads via chunked transfer.
3. One-Tap Video Import
- Share a video straight into FencingLab from Photos, Files, or any app using the iOS share sheet.
- Pick the title, session type (training/competition/drill), and visibility before uploading.
4. Improved AI Analysis
- Technical breakdown with coaching moments (screenshot thumbnails of key actions) and an interactive timeline so you can jump straight to the moment that needs work.

### 2.1 — 2026-08-14

Fixes for things that were actively breaking video import/playback:
  - Session expiry no longer breaks video import. The app now refreshes your login token every time it comes to the foreground, not just on a
  fresh launch — previously a session left backgrounded past the 7-day token lifetime would silently fail every action (including "Import
  Video") until you manually logged out and back in.
  - Uploads survive network blips instead of restarting. A failed chunk (timeout, dropped connection, server hiccup) now resumes from the last
  successfully-uploaded chunk when you tap Retry, instead of re-sending the whole video from scratch. Bad requests (not just transient errors)
  still fail cleanly rather than retrying forever.
  - Fixed the "kicked back to Training Videos" bug. Watching a video (or viewing its details) no longer gets silently interrupted and dumped
  back to the video list whenever an analysis finishes in the background — traced to a SwiftUI view-identity bug in the tab badge, now fixed.
  - Video captions no longer cut off mid-sentence. The on-screen caption during playback showed at most 2 lines and truncated with "…"; now it
  grows to fit the full description.
  - Coaching moments now show a screenshot of the video frame at that moment (backend already generated these; the UI just wasn't displaying
  them).
 - New: scoreboard & touch-indicator detection. The model now explicitly reports whether it can see a physical scoreboard or the
  touch-indicator light apparatus in the shot (these are real objects in frame, not video overlays, and can drift in/out as the camera moves) —
  and states plainly when it doesn't see one, instead of silently leaving score fields empty.
  - New: automatic retry on a bad sample. Same video, same prompt can occasionally produce a degenerate, repetitive response purely from model
  sampling variance — this is now detected and retried once automatically before being accepted.

### 2.0 — 2026-06-01

FencingLab 2.0 brings a much smoother training workflow:

(1) Video up to 5 minutes and Background uploads
      Long video uploads now continue even if you switch apps or your phone goes to sleep. Upload one clip, start recording the next — no more waiting.

(2) Sign in with Google and Apple account
One-tap Google Sign-In is now available alongside Apple and email.

(3) Guest mode
Try the app without creating an account. When you're ready, sign in and your trial credits transfer over.

(4) Faster AI analysis
Technique, tactics, blade contact, and matchup analyses are faster and more reliable. 

(5) Smoother video import 
The "share to FencingLab" flow now picks the current fencer automatically.

(6) Numerous bug fixes and performance improvements 

Thanks for fencing with us — feedback always welcome at support@myphonetools.com.

### 1.3.2 — 2026-05-04

Based on what was done this session, here's what's new in 1.3.2:                                                                                            
                                         
  Bug Fixes                                                                                                                                                   
  - Fixed landscape video recording — live camera preview was rotated 90° when holding phone sideways
  - Fixed recording orientation being saved incorrectly for landscape videos                                                                                  
  - Eliminated the multi-second delay after a 1-minute recording ends before the Cancel/Done buttons appear
  - Fixed "Failed to load fencer data" error when tapping your name in Profile                                                                                
  - Switched Gemini AI model to gemini-3.1-pro-preview for better analysis quality

### 1.3 — 2026-04-28

Version 1.3                                                                                                                   
                                                                                                                                
  Competition Strategy                                                                                                          
  Analyzing a competition bout? FencingLab now generates a dedicated Competition Strategy section — what to do differently in   
  the next point, habits to break immediately, opponent weaknesses to exploit right now, and a closing plan to win or recover.  
                                                            
  Deeper Tactical Analysis                    
  Every analysis now includes distance management assessment, preparation tells (arm extension timing, footwork telegraphing),  
  strip position awareness, and 3 specific tactical adjustments to improve your hit-to-miss ratio. Both your fencer and opponent
   get a game plan.                                                                                                             
                                                            
  Better Local AI Results                                                                                                       
  The on-device GPU analysis (Local LLM) now produces structured results matching the quality of cloud analysis — with proper
  owner/opponent attribution on every detected action.                                                                          
                                                            
  Japanese & Korean Support
  Analysis and coaching feedback now available in 日本語 and 한국어, in addition to English, Chinese, Spanish, French, and      
  German.                                     
                                                                                                                                
  Bug Fixes                                                 
  - Fixed analysis mode picker appearing on already-analyzed videos                                                             
  - Fixed server connection issues on physical devices

## More apps by Langtian Du

- [iSip -VOIP Sip Phone](https://appshunter.io/ios/app/isip-voip-sip-phone/id298202722)
- [AddressBook/Contacts Manager](https://appshunter.io/ios/app/addressbookcontacts-manager/id6752967295)
- [TripMates - Share Your Journey](https://appshunter.io/ios/app/tripmates-share-your-journey/id6754992611)
- [What-is-it](https://appshunter.io/ios/app/what-is-it/id6766757109)
- [Translate-It](https://appshunter.io/ios/app/translate-it/id6777180774)

All apps by Langtian Du: https://appshunter.io/developer/1155770837

## Related topics

[fencing](https://appshunter.io/ios/topics/fencing)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*
