# Lince — Annotation tool for images > Image annotation tool for labeling objects with bounding boxes and exporting data. (iPhone/iPad app by Angel Rodriguez Junquera.) - Source: https://appshunter.io/ios/app/lince/id1456398006 (this page in markdown: same URL + `.md`) - Developer: [Angel Rodriguez Junquera](https://appshunter.io/developer/975026920) - Category: Photo & Video, Utilities - Price: Free - Rating: 4.43/5 from 7 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 11.3 · 28 MB - Languages: English - Released: 2019-04-16 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lince/id1456398006/reviews.md ## What is Lince? Lince helps you label and annotate the images with bounding boxes. Import pictures from the image gallery, camera, tensorflow record file or Files App. Track objects from the camera and label them directly. Make as many pictures as you want. Export your annotations and pictures to a CSV, PascalVOC or Tensorflow Record format file. ## Key features - Image annotation with bounding boxes - Import from gallery, camera, Files App - Real-time object tracking from camera - Export annotations to CSV, PascalVOC, TFRecord - Unlimited image labeling ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/lince/id1456398006/reviews.md ### 4/5 — Need options for small annotations. *2024-09-18* This app is what I needed. I am making a model to locate piñon nuts, so I wish annotation outlines could be thin with no text since I will be working with only one class. It would also be nice to export as a JSON for CreateML. ### 3/5 — Can’t use screenshots *2023-09-22* I really like this app. But it can’t seem to handle screenshots. Every time I try to load a screenshot I took on my phone, the app crashes. ### 5/5 — EXACTLY what I needed *2019-06-20* I was looking for something like the python application LabelImg but on the iPad so that I could use my finger and hopefully Apple Pencil. Not only is this exactly what I was looking for (including pencil support), but it seems super well designed, too. I have no idea why you would buy one of the other apps with their $3-$10/month subscriptions. If all you need is to draw boxes and name them, this is the app for you. Thank you, Mr. Rodriguez Junquera! One suggestion, if I may, to make this already awesome app even better: could you add the ability to read from the filesystem (like in the Files app)? If so, I could airdrop pictures (and xml files? Would that be possible?) from my Mac that I already have started labeling and open them up in Lince. That would be perfect! **Developer response:** Hi Axymis, Thank you very much for your review and feedback! In some days I will release a new version that will be able to open Tensorflow .record files (not sure if you are using TF), and that way you can have your current annotations and pictures easily imported into the app. I thought the .record file was the way to go because it is independent of the annotation's format(Pascal VOC or others), so it does not matter in which format your previous annotations are. Of course, you will also be able to export to a .record file. I will probably add the Files App import integration in the near feature too ;). ## Frequently asked questions about Lince ### What is Lince used for? Lince is an image annotation tool that allows users to label images with bounding boxes. It's designed for tasks like object detection and data collection for machine learning. ### Can I import images from different sources into Lince? Yes, Lince supports importing pictures from your device's image gallery, directly from the camera, from a TensorFlow Record file, or via the Files App. ### What export formats does Lince support? Lince allows you to export your annotations and labeled pictures in CSV, PascalVOC, or TensorFlow Record file formats, making it compatible with various machine learning workflows. ### Does Lince have any in-app purchases or ads? Lince is completely free to use and does not contain any in-app purchases or advertisements, offering an uninterrupted annotation experience. ### What devices is Lince available on? Lince is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### How often is Lince updated? The latest version of Lince is 1.1, which was last updated on August 26, 2019. It was initially released on April 16, 2019. ### What is the age rating for Lince? Lince has an age rating of 4+, indicating it is suitable for users of all ages and does not contain mature content. ### Can I track objects in real-time with Lince? Yes, Lince enables you to track objects directly from your camera feed and label them in real-time as you capture them. ## Version history (last 5 releases) ### 1.1 — 2019-08-26 Small UI/UX changes. ### 1.0.3 — 2019-08-12 UX Improvements ### 1.0.2 — 2019-06-06 UX improvements and bug fixing. ### 1.0.1 — 2019-05-20 Small UI improvements. ### 1.0 — 2019-04-15 No release notes. ## Apps similar to Lince | App | Rating | Price | Category | | --- | --- | --- | --- | | [i3DSteroidbasic](https://appshunter.io/ios/app/i3dsteroidbasic/id500514895) | 4.0 (4) | Free | Photo & Video | | [Presets - Photos App Companion](https://appshunter.io/ios/app/presets-photos-app-companion/id6475609602) | 5.0 (5) | Free | Photo & Video | | [Object Detection Cam](https://appshunter.io/ios/app/object-detection-cam/id1625239819) | — | $2.99 | Photo & Video | | [Styled Camera](https://appshunter.io/ios/app/styled-camera/id1521154750) | 4.8 (18) | Free | Photo & Video | | [Paint Like Monet and Picasso](https://appshunter.io/ios/app/paint-like-monet-and-picasso/id1584114611) | 5.0 (2) | Free | Photo & Video | | [Ultralytics YOLO](https://appshunter.io/ios/app/ultralytics-yolo/id1452689527) | 4.3 (61) | Free | Photo & Video | ## More apps by Angel Rodriguez Junquera - [BookVault - Your Book Vault](https://appshunter.io/ios/app/bookvault-your-book-vault/id1560352057) All apps by Angel Rodriguez Junquera: https://appshunter.io/developer/975026920 --- *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 2026-06-10.*