Comparison

Cobalt Image vs Contact Sheet Generator

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

Head to head
About

Cobalt Image

Enhance your iPhone photos with advanced AI, HDR, and smart portrait modes. This app offers unparalleled control over non-raw images, featuring cutting-edge white balance and Luma curve adjustments. Access renowned digital and film emulations for professional-level editing.

Highlights
  • AI-enhanced picture processing
  • HDR and smart portrait modes
  • Advanced color models for HEIC files
  • Unprecedented control over non-raw photos
  • White balance and Luma curve adjustments
  • Renowned digital and film emulations
  • Direct editing from Apple Photos
Features
Read full description

Please note that Cobalt Image PHOTO is available through subscription plans. The Full Access Yearly subscription provides a 7-day trial period during which you can try the full app and decide to cancel at any time. Our Digital and Film packs are renowned for their accuracy and are now available for all images taken by your favorite device. Your AI-enhanced pictures with HDR and smart portrait mode will be the starting point for our emulations. Cobalt Image PHOTO introduces a new advanced tool powered by the latest color models, specifically designed for treating AI-enhanced iPhone HEIC files. Leveraging the best color science available, it enhances and edits your cherished memories captured by the iPhone. Experience unparalleled freedom with our image editor, where you’ll be astonished by the unprecedented level of control over your non-raw photos. Our advanced color pipeline, featuring cutting-edge white balance and Luma curve adjustments, elevates the app to extraordinary heights, setting a new standard in photo editing. Features: - A complete set of renowned emulations made by Cobalt, both Digital and Film (Film available on Full Access subscription) - Advanced BW scientific conversion - Advanced White Balance - Luma curve on CIECAM16 - RGB curves on ProPhoto - Brightness, Contrast, Saturation all on CIECAM16 - Clarity - Structure - Advanced grain - Vignette The app can also be accessed directly from Apple Photos through the sharing function, allowing for direct editing of the selected photo. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Contact Sheet Generator

Create authentic film contact sheets from your digital photos. This app offers multiple film formats, customizable borders, and annotation tools for a vintage darkroom feel. Perfect for photographers documenting, presenting, or learning about analog photography.

Highlights
  • Multiple film formats (35mm, 120)
  • Authentic film border overlay
  • Customizable colors and fonts
  • Frame markup (keepers, rejects)
  • Free-form brush annotation
  • EXIF metadata embedding
  • Dark mode support
Features
Read full description

Transform your digital photos into classic film contact sheets — the essential photo grid layout for reviewing negatives. Contact Sheet Generator creates authentic proof sheets with the vintage look and feel of a traditional darkroom. NEW IN 2.0: • Darkroom Library: every sheet you generate is saved automatically to a private in-app gallery. Search, filter, and sort your sheets, and organize them with albums, tags, and notes. • Landing Hub: open straight to a home screen where you can start a 35mm or 120 sheet in one tap and see your newest work. • 120 rebate borders: realistic Classic, Striped, and Monochrome film edges for 645, 6x6, and 6x7 sheets. • Contact sheet themes and export presets: Lab Classic, Darkroom, Kodak Warm, Fuji Cool, and Ilford Mono looks, plus Archival, Small Share, Clean Metadata, and No Markup exports. • Ready for iPhone Duo: controls move to the side rail, the home screen uses the inner display, and your sheet stays on one side of the fold. FEATURES: • Multiple Film Formats: 35mm (36 exposures) and medium format 120 film (645, 6x6, 6x7) • Professional Layout: High-quality 8.5×11" contact sheets at 300 PPI — perfect as a photo collage or portfolio grid • Authentic Film Borders: Optional 35mm border with sprocket holes and frame numbers, plus 120 rebate borders in three styles • Customizable Colors: Control background, text, border, and sprocket colors • Font Options: Choose between classic Leica and San Francisco typography • Dark Mode Support: Comfortable editing in any lighting condition MARKUP & ANNOTATION: • Mark frames as keepers, rejects, or maybes with color-coded overlays • Free-form brush annotation with adjustable color, size, and opacity • 3× magnifier loupe for detailed frame inspection • All markup bakes at full resolution for save and share MY GEAR PRESETS: • Save your favorite cameras and film stocks for quick access • Presets sorted by usage frequency or name • EXIF metadata embedding: camera, film, and author info saved with every image EASY TO USE: 1. Select your preferred film format 2. Choose up to 36 images (35mm) or 15 images (120 film) 3. Add custom details — or pick from your saved gear 4. Generate — your sheet is saved to the Darkroom Library and ready to share PERFECT FOR: • Film photographers documenting their work • Photography students learning about contact sheets and proof sheets • Professional photographers presenting their portfolio • Anyone who loves the vintage aesthetic of analog film photography • Photographers who want a clean negative review layout Create beautiful contact sheets that blend digital convenience with analog charm — your darkroom proof sheet workflow, reimagined.

Screenshots

Cobalt Image4 screens
Contact Sheet Generator4 screens

Verdict

The call

The clearest difference is rating: Contact Sheet Generator at 4.0 against Cobalt Image's 2.3. Contact Sheet Generator also leads on in-app purchases (none vs 3). Cobalt Image's advantage is update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.0 vs 17.6). On price, ratings volume, ads and device support 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. Cobalt Image sells 3 in-app purchases, starting at $3.49 per month. Contact Sheet Generator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Contact Sheet Generator holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 6 and 4 respectively.

UpkeepUpdate frequency

Cobalt Image ships an update every 5 days, Contact Sheet Generator every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
Cobalt Image versus Contact Sheet Generator: the parameters behind the verdict, then further details
ParameterCobalt ImageContact Sheet Generator
PriceFreeFree
Rating2.3 (6 ratings)4.0 (4 ratings) — better
Positive reviews55.6% of reviews—
Number of ratings6 — better4
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size203 MB10 MB
Age rating4+4+
DeveloperCobalt Image LTDSambit Biswas

Customer experience

Cobalt Image

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

Contact Sheet Generator

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

3 purchases

Cobalt Image

Subscriptions3
  • Cobalt Image Pro Digital$3.491 Month
  • Cobalt Image Pro Monthly$5.491 Month
  • Cobalt Image Pro Yearly7 Days trial$44.991 Year
None

Contact Sheet Generator

No in-app purchases

Questions

Is Cobalt Image free?
Cobalt Image is free to download, with in-app purchases available.
Is Contact Sheet Generator free?
Contact Sheet Generator is free to download, with no in-app purchases.
Which has better reviews, Cobalt Image or Contact Sheet Generator?
Contact Sheet Generator is rated higher. Cobalt Image averages 2.3 out of 5 from 6 ratings, while Contact Sheet Generator averages 4.0 from 4 ratings.
Do Cobalt Image or Contact Sheet Generator have ads?
Neither Cobalt Image nor Contact Sheet Generator shows ads.
Which is updated more often, Cobalt Image or Contact Sheet Generator?
Cobalt Image ships an update every 5 days, and Contact Sheet Generator every 3 weeks. Most recently, Cobalt Image was updated on October 24, 2026 and Contact Sheet Generator on October 28, 2026.

Other comparisons