Comparison

When Did? vs Image & Video Compressor, PDF

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 Compressor, PDF

Easily reduce the file size of photos, videos, and PDFs on your device without compromising quality. Perfect for sharing files via email, meeting upload limits, or freeing up storage space.

Highlights
  • Compress photos, videos, and PDFs
  • Smart quality selection for minimal size
  • Customizable size limits
  • Convert HEIC to JPG/PNG/PDF
  • Compress large video clips
  • Batch compression for up to 50 photos
  • Free up device storage
Features
Read full description

Make photos, videos and PDFs smaller without making them look worse. Compressor shrinks your files right on your iPhone, so they fit in an email, pass an upload limit, or stop filling up your storage. PHOTOS • Smart quality picks the smallest size that still looks the same • Fit to a size: 500 KB, 1 MB, email, or your own limit, down to the KB • Resize to a long edge or to exact dimensions • Convert HEIC to JPG, or to PNG, HEIC and PDF • Hold the result to compare it with the original VIDEOS • Compress big clips so they are easy to send • Choose the quality, resolution (4K down to 480p) and codec (H.264 or HEVC) PDFS • Shrink scanned and image-heavy PDFs for email • Text stays sharp and pages stay in order BATCH • Compress up to 50 photos at once FREE UP SPACE • Save the small copy and, if you want, delete the big original • See every file and every byte you saved in History PRIVATE BY DESIGN • Everything is compressed on your iPhone. Nothing is uploaded. Compressing single photos is free and unlimited. Compressor Pro adds batch compression, unlimited videos and PDFs, size limits and custom dimensions. Terms of Use: https://www.theblackholecompany.com/termsConditions.html

Screenshots

When Did?4 screens
Image & Video Compressor, PDF4 screens

Verdict

The call

The clearest difference is price: Image & Video Compressor, PDF at Free against When Did?'s $0.99. Image & Video Compressor, PDF 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 3). On 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 Compressor, PDF is free to download; When Did? costs $0.99 up front. Image & Video Compressor, PDF sells 3 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 Compressor, PDF 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 Compressor, PDF's.

UpkeepUpdate frequency

When Did? ships an update every 2 months, Image & Video Compressor, PDF every 3 weeks. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard7 real differences · 3 level
When Did? versus Image & Video Compressor, PDF: the parameters behind the verdict, then further details
ParameterWhen Did?Image & Video Compressor, PDF
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 3 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 MB84 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 Compressor, PDF

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

3 purchases

Image & Video Compressor, PDF

Subscriptions2
  • Compressor Pro Weekly$1.997 Days
  • Compressor Pro Yearly3 Days trial$9.991 Year
One-time1
  • Compressor Pro$19.99

Questions

Is When Did? free?
When Did? costs $0.99, with no in-app purchases.
Is Image & Video Compressor, PDF free?
Image & Video Compressor, PDF is free to download, with in-app purchases available.
Which has better reviews, When Did? or Image & Video Compressor, PDF?
Image & Video Compressor, PDF is rated higher. When Did? averages 3.8 out of 5 from 4 ratings, while Image & Video Compressor, PDF averages 4.5 from 16 ratings.
Do When Did? or Image & Video Compressor, PDF have ads?
Neither When Did? nor Image & Video Compressor, PDF shows ads.
Which is updated more often, When Did? or Image & Video Compressor, PDF?
When Did? ships an update every 2 months, and Image & Video Compressor, PDF every 3 weeks. Most recently, When Did? was updated on November 3, 2026 and Image & Video Compressor, PDF on November 12, 2026.

Other comparisons