Comparison

Silverlog vs Image DPI Changer

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

Head to head
About

Silverlog

Features
Read full description

Silverlog is a comprehensive film photography logbook for iOS. Track your film rolls, development processes, darkroom printing, and create professional contact sheets. FILM ROLL MANAGEMENT Log rolls across 35mm, medium format, large format, and special formats. Record frame-by-frame aperture, shutter speed, lens and notes, plus location and weather for each roll. Save your own frame templates to speed up logging. DEVELOPMENT LOGGING Track your development sessions with chemistry details, times, temperatures, agitation techniques, and results. DARKROOM PRINTING Document your printing sessions with paper type, exposure settings, chemistry, and detailed notes for reproducing your best prints. PRO FEATURES - Spot metering, calibration and reading history for the built-in light meter (centre-weighted metering using your device camera is free) - Film stock presets for negative colour inversion (basic inversion is free) - PDF export with professional formatting - Cost analytics and advanced statistics - B&W contrast presets and manual colour adjustment for inverted negatives DATA & EXPORT - Full JSON backup and restore - CSV export for spreadsheets - Professional contact sheet PDFs (Pro) - Cloud backups you can restore on any device (requires a Silverlog Cloud subscription) Built for film photographers who care about their craft. Whether you shoot 35mm, medium format, or large format, Silverlog keeps your entire analogue workflow organised in one place. SUBSCRIPTIONS Silverlog Cloud and Cloud Unlimited are optional auto-renewing subscriptions, billed monthly or annually. Payment is charged to your Apple Account. A subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://silverlog.app/terms Privacy Policy: https://silverlog.app/privacy

About

Image DPI Changer

Features
Read full description

Change the DPI metadata of your photos for print-ready files. This app does not resize your images. It updates only the DPI metadata stored in JPEG, PNG, and HEIC files. It is not an image upscaler or enhancer. WHO IT'S FOR • Print submissions that require 300 DPI • Research papers and reports with image requirements • Checking print size before photo printing HOW IT WORKS 1. Choose a photo or image file 2. Select the target DPI (such as 300) 3. Convert, then save or share FEATURES • Presets: 72, 96, 150, 300, 350, and 600 DPI • Custom DPI input • JPEG, PNG, and HEIC support • Before/after DPI and print size preview (cm / inch) • Pixel dimensions stay unchanged • Batch conversion for multiple images • Save to Photos, export files, and share PRIVACY Image processing runs on your iPhone. Your photos are not uploaded to a server for DPI conversion. This app uses Google AdMob for ads. No account is required.

Screenshots

Silverlog4 screens
Image DPI Changer3 screens

Verdict

The call

The clearest difference is in-app purchases: Image DPI Changer at none against Silverlog's 5. Silverlog's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Silverlog sells 5 in-app purchases, starting at $2.99 per month. Image DPI Changer asks for nothing beyond the download.

Scorecard2 real differences Ā· 4 level
Silverlog versus Image DPI Changer: the parameters behind the verdict, then further details
ParameterSilverlogImage DPI Changer
PriceFreeFree
Update frequencyEvery 3 days—
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.4 — better17.0
Further details — not scored
Size68 MB6 MB
Age rating4+4+
DeveloperSimon WestgateYuya Takamoto

In-app purchases

5 purchases

Silverlog

Subscriptions4
  • Cloud Monthly$2.991 Month
  • Cloud Unlimited Monthly$9.991 Month
  • Cloud Annual$24.991 Year
Show 1 more
  • Cloud Unlimited$79.991 Year
One-time1
  • SilverLog Pro$24.99
None

Image DPI Changer

No in-app purchases

Questions

Is Silverlog free?
Silverlog is free to download, with in-app purchases available.
Is Image DPI Changer free?
Image DPI Changer is free to download, with no in-app purchases.
Do Silverlog or Image DPI Changer have ads?
Image DPI Changer shows ads; Silverlog does not.

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