Comparison

When Did? vs Image Video PDF Compressor

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

Head to head
About

When Did?

Effortlessly track the last time you performed any desired activity. Customize your activity list with unique colors and icons, and use timestamps to know exactly when each task was last completed, bringing order to forgetfulness.

Highlights
  • Track last performed activities
  • Customizable activity list
  • Color-coded entries
  • Icon selection for activities
  • Timestamp logging
  • Simple and intuitive interface
Features
Read full description

In the vast and wondrous world of mobile applications, there is one that stands out from the rest. It is an app of great simplicity, yet with a profound purpose that is sure to make life easier for all who use it. Behold, dear user, the "When Did?" app! With this app, you can effortlessly keep track of the last time you performed any activity you desire, no matter how big or small. When was the last time you watered your plants? When did you last take your vitamins? Would you swear that you called your mom 42 times last month? You can customize your activity list with a rainbow of colors and a dazzling array of icons, so that each one is as unique and vibrant as the activity it represents. And with the magic of timestamps, you'll always know exactly when you last did each one, saving you from the chaos of uncertainty and forgetfulness. So whether you're a busy professional, a forgetful student, or simply a petty spouse who wants to keep score, "When Did?" is here to help. Download it now and join the ranks of the organized, the efficient, and the impeccably timed.

About

Image Video PDF Compressor

Effortlessly reduce the file size of images, videos, and PDFs while preserving high quality. Optimize media for storage, web, or sharing with intuitive tools and batch processing.

Highlights
  • Smart image compression with quality control
  • Video compression with codec and resolution adjustment
  • PDF compression with searchable text preservation
  • Batch processing for multiple files
  • Compression history and statistics
  • Metadata preservation or stripping
Features
Read full description

Image, Video & PDF Compressor - Smart Media Optimizer Effortlessly reduce image, video, and PDF file sizes while maintaining stunning quality. Transform your media with our powerful, intuitive compression app. Whether you're freeing up storage space, preparing files for web upload, or optimizing media for sharing, Compressor delivers professional results with just a few taps. Key Features Smart Image Compression - Quality Control - Fine-tune compression from 10% to 100% - Target Size - Set specific file size goals in KB or MB - Custom Dimensions - Resize to exact pixel dimensions or preset ratios - Format Conversion - Convert between JPEG, HEIC, PNG, and PDF Video Compression - Compress videos with High, Medium, or Low quality presets - Choose between H.264 and HEVC codecs - Adjust resolution: 4K, 1080p, 720p, 480p, or keep original - Real-time progress tracking with size estimates PDF Compression - Compress PDF documents while preserving readability - Multiple quality presets: Lossless, Balanced, or Maximum - Text remains searchable and selectable after compression - Perfect for email attachments, form submissions, and archiving Batch Processing - Compress multiple images at once - Proportional target sizing across batches - Save or share all results in one tap Compression History & Stats - Timeline view grouped by date with thumbnail previews - Track total compressions, space saved, and average reduction - Detailed breakdowns for every compression you've made Professional Tools - Preserve or strip photo metadata (EXIF, GPS, timestamps) - Maintain aspect ratios or set custom dimensions - Export to Photos, share, or save to Files - Auto-save option for faster workflows Perfect For: - Content Creators - Optimize images, videos, and PDFs for social media and websites - Students & Professionals - Shrink PDFs and images to meet upload size limits - Travelers - Free up storage space without losing precious memories - Everyone - Reduce storage usage and speed up sharing Why Choose Compressor? - No Quality Loss - Advanced algorithms preserve clarity - Lightning Fast - Process media in seconds, not minutes - Privacy First - All processing happens on your device, nothing leaves your phone - Smart Presets - Automatically calculated optimal compression settings - iCloud Sync - Your compression history syncs across devices - Beautiful Design - Clean interface with iOS 26 support Download Compressor today and discover the easiest way to optimize your photos, videos, and PDFs without compromising quality. Terms of Use: https://www.theblackholecompany.com/termsConditions.html

Screenshots

When Did?4 screens
Image Video PDF Compressor4 screens

Verdict

The call

The clearest difference is price: Image Video PDF Compressor at Free against When Did?'s $0.99. Image Video PDF Compressor also leads on rating (4.5 vs 3.8) and review sentiment (100% vs 67%). When Did?'s advantage is in-app purchases (none vs 6). On update cadence, ads, 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

Image Video PDF Compressor is free to download; When Did? costs $0.99 up front. Image Video PDF Compressor sells 6 in-app purchases, starting at $1.99 per 7 days. When Did? asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Image Video PDF Compressor holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 4 and 16 respectively. Written reviews point the same way: 67% of When Did?'s written reviews are positive against 100% of Image Video PDF Compressor's.

UpkeepUpdate frequency

When Did? ships an update every 2 months, Image Video PDF Compressor every 5 weeks. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

Scorecard6 real differences · 4 level
When Did? versus Image Video PDF Compressor: the parameters behind the verdict, then further details
ParameterWhen Did?Image Video PDF Compressor
Price$0.99Free — better
Rating3.8 (4 ratings)4.5 (16 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings416 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17
Further details — not scored
Size3 MB72 MB
Age rating4+4+
DeveloperJimmy BosseYoussef Ismaili

Customer experience

When Did?

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Image Video PDF Compressor

All ratings16 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

When Did?

No in-app purchases

6 purchases

Image Video PDF Compressor

Subscriptions4
  • Unlimited access3 Days trial$1.997 Days
  • Compressor Pro Weekly$4.997 Days
  • Full Access$9.991 Year
Show 1 more
  • Compressor Pro Yearly$29.991 Year
One-time2
  • Ulimited access$19.99
  • Compressor Pro$49.99

Questions

Is When Did? free?
When Did? costs $0.99, with no in-app purchases.
Is Image Video PDF Compressor free?
Image Video PDF Compressor is free to download, with in-app purchases available.
Which has better reviews, When Did? or Image Video PDF Compressor?
Image Video PDF Compressor is rated higher. When Did? averages 3.8 out of 5 from 4 ratings, while Image Video PDF Compressor averages 4.5 from 16 ratings.
Do When Did? or Image Video PDF Compressor have ads?
Neither When Did? nor Image Video PDF Compressor shows ads.
Which is updated more often, When Did? or Image Video PDF Compressor?
When Did? ships an update every 2 months, and Image Video PDF Compressor every 5 weeks. Most recently, When Did? was updated on October 20, 2026 and Image Video PDF Compressor on October 8, 2026.

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