Comparison

Notate ML vs Reduce image size

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Notate ML

Accelerate the creation of image datasets for machine learning projects. Easily add labels, import or capture images, and annotate objects with bounding boxes. Export your prepared data for popular object detection frameworks.

Highlights
  • Create and name datasets
  • Add labels via typing, copy-paste, scanning, or voice
  • Import images from photo library
  • Capture new images with camera
  • Crop images and draw bounding boxes
  • Tag and label objects
  • Export data for YOLO, Create ML, Auto ML
Read full description

Preparing input image datasets is a critical and challenging task in any Machine Learning project.  Notate ML brings the power and usability of Apple's mobile devices to accelerate this task and deliver higher quality training data to your object detection model. FEATURES ・Create a dataset, type, scan, or speak your labels into it ・Snap new pictures, or import old ones from your photo library ・Crop images, draw bounding boxes, tag and label objects of interest ・Export images and annotations for training with YOLO, Apple Create ML, or Google Auto ML CREATING A DATASET ・Create a new data set and give it a unique name ・Add labels in one of several ways: ・One at a time, using the keyboard ・Copy and paste a comma-separated list from another document ・Scan from a physical text source ・Use the device voice feature to speak them in ・Labels can be edited or deleted by swiping left on each row ・Only unused labels can be deleted IMPORTING IMAGES ・Tap into the dataset and import photos (up to 50 at a time) from your Photo Library ・This app can only access photos that you select using Apple's photo picker feature CAPTURING IMAGES FROM THE CAMERA ・While browsing the images in a dataset, tap the "Capture" button to snap new images with the camera ・The app will require your permission to access the camera ・If you choose to decline, you can always grant access at a later date using "Settings" ANNOTATING THE IMAGE ・Select an image from the dataset image browser to annotate it ZOOMING and CROPPING ・Pinch with two fingers to zoom in or out of the image ・Drag with two fingers to move (pan) the image about ・Optionally crop the image to the visible square dimensions ・Cropping can only be done when the image has no bounding boxes. ・Double tap on the image to reset zoom and recenter the image ・Tap the "Reset" button in the bottom panel to restore image and annotations to the original state before editing ・The cropped image dimensions and visible area dimensions in pixels are displayed above the image at all times TAGGING ・Drag with one finger or stylus to draw bounding boxes around objects of interest ・Long press on a box to select an existing annotation ・Use the picker to assign a label to the selected bounding box ・Or tap the red Delete button to remove the selected box ・Tap anywhere outside the selected box to unselect it ・Tap the "Reset" button to restore image and annotations to the original state before editing ・Tap the "Done" button to complete annotating the image EXPORTING THE DATASET ・While browsing dataset images, tap the "Export" button, to select export options ・Datasets can be exported in one of three "schemas" for use with different object detector training frameworks ・The YOLO schema generates a set of files organized for use with the YOLO framework ・The Create ML schema generates files to use as input to Apple's Create ML application ・The Auto ML schema generates files to use as input to Google's Auto ML service ・ After reviewing the export options, tap the "Export" button on the Export options screen to generate data files for training ・ Choose one of the sharing options (e.g. Airdrop, Files) enabled by your device to export the data files DELETING ・Delete an image by swiping left in the dataset image browser ・Delete an entire dataset by swiping left in the dataset browser ・If a dataset contains images, you will be prompted for confirmation Some tips ・Crop the images before tagging them ・Use a stylus for more accurate bounding boxes ・Maintain different datasets for training and validation ・Limit datasets to under 1000 images each, for ease of use ・Export and delete unused datasets to conserve storage

About

Reduce image size

Easily resize and compress images and videos to optimize file sizes for sharing or storage. Supports batch processing, various formats, and offers customizable settings for quality and dimensions.

Highlights
  • Image resizing
  • Image compression
  • Video resizing
  • Video compression
  • Image format conversion
  • Batch processing
  • Customizable settings
Features
Read full description

Image Resizer & Compressor is a powerful and user-friendly mobile application designed to simplify the process of resizing and compressing images on the go. Whether you're a professional photographer, social media enthusiast, or simply someone who wants to optimize their image files for various purposes, this app is your go-to solution. Features: Image Resizing: Easily resize your images to specific dimensions or choose from various preset sizes suitable for social media platforms like Instagram, Facebook, Twitter, and more. Maintain the aspect ratio while resizing to ensure your images look perfect. Image Compression: Reduce the file size of your images without compromising on quality. The app employs advanced algorithms to compress images while preserving essential details, so you can save storage space on your device or share images faster online. Video Resizing: Resize videos to specific dimensions and share on different social media platforms. Video Compressor: Compress videos in bulk and save device space. Image converter: Change image format easily using this app. Batch Processing: Save time and effort by resizing and compressing multiple images at once. The app's batch processing feature allows you to apply the same settings to a group of images, making it perfect for handling large photo collections. Customizable Settings: Tailor the compression level and image size according to your needs. The app offers various compression options, allowing you to strike the right balance between image quality and file size. Intuitive Interface: The app boasts a user-friendly interface, making it easy for both beginners and professionals to navigate and utilise its powerful features effectively. Share and Save: After resizing and compressing your images, conveniently save them to your device or share them directly to your favourite social media platforms or messaging apps. Image Format Support: Image Resizer & Compressor supports various popular image formats, including JPG, PNG, GIF, and more, ensuring compatibility with a wide range of devices and platforms. Secure and Private: Your images are processed locally on your device, ensuring your privacy and data security. The app does not store or transmit your images to any external servers. Whether you want to optimize images for online sharing, create stunning social media posts, or manage your photo gallery more efficiently, Image Resizer & Compressor provides a comprehensive solution with its quick and easy image resizing and compression capabilities. Download the app now and take control of your image files with ease! Our App can be used for free with Ads and limited features, however, you can purchase a Image Resizer Premium subscription for the additional advanced features, and remove Ads. SUBSCRIPTION AND TERMS: When you download our App you can opt in to a 3 days free trial for monthly and 7 days free trial for yearly subscription. Our App offers auto-renewing monthly/yearly subscription options for access to the app's features and content. Your Image Resizer Premium subscription will automatically renew at the end of each term and payment will be charged through your iTunes account. You can turn off auto-renew at any time from your iTunes account settings but refunds will not be provided for any unused portion of the term. To avoid renewal, you must cancel at least 24 hours before your subscription or trial ends. Your account will be charged for renewal within 24 hours prior to the end of the current period. Any unused portion of a free trial period will be forfeited if you purchase a subscription. SUBSCRIPTION PRICING: Premium Monthly: $0.99 / Month (3 days free trial) Premium Yearly: $5.99 / Year (7 days free trial) Read more about our terms, conditions, and privacy here: • Privacy Policy: https://www.racersoft.in • Terms of Use: https://racersoft.in/terms-of-use/

Screenshots

Notate ML4 screens
Reduce image size4 screens

Verdict

The call

The clearest difference is review sentiment: Reduce image size at 60% against Notate ML's 0%. Reduce image size also leads on ratings volume (72 vs 4) and update cadence (every 2 months vs every 5 months). Notate ML's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Reduce image size sells 3 in-app purchases, starting at $0.99 per month. Notate ML asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Reduce image size holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Reduce image size has 72 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Notate ML's written reviews are positive against 60% of Reduce image size's.

UpkeepUpdate frequency

Notate ML ships an update every 5 months, Reduce image size every 2 months. The most recent releases landed on July 3, 2026 and September 21, 2026 respectively.

Scorecard8 real differences · 3 level
Notate ML versus Reduce image size: the parameters behind the verdict, then further details
ParameterNotate MLReduce image size
PriceFreeFree
Rating4.0 (4 ratings)4.2 (72 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings472 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#183 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size7 MB14 MB
Age rating4+4+
DeveloperRajaram GurumurthiSounak Sarkar

Customer experience

Notate ML

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Reduce image size

All ratings72 ratings
Positive79.2%
Neutral5.6%
Negative15.3%
Written reviews5 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

In-app purchases

None

Notate ML

No in-app purchases

3 purchases

Reduce image size

Subscriptions2
  • Premium Monthly3 Days trial$0.991 Month
  • Premium Yearly7 Days trial$5.991 Year
One-time1
  • Remove all advertisements$0.99

Questions

Is Notate ML free?
Notate ML is free to download, with no in-app purchases.
Is Reduce image size free?
Reduce image size is free to download, with in-app purchases available.
Which has better reviews, Notate ML or Reduce image size?
Reduce image size is rated higher. Notate ML averages 4.0 out of 5 from 4 ratings, while Reduce image size averages 4.2 from 72 ratings.
Do Notate ML or Reduce image size have ads?
Reduce image size shows ads; Notate ML does not.
Which is updated more often, Notate ML or Reduce image size?
Notate ML ships an update every 5 months, and Reduce image size every 2 months. Most recently, Notate ML was updated on July 3, 2026 and Reduce image size on September 21, 2026.

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