Comparison

Calipers Tape Measure vs Gridley

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

Head to head
About

Calipers Tape Measure

Measure objects of any size with your phone. Features a 5-meter tape measure for larger items and a precision caliper mode for measuring small objects down to a tenth of a millimeter. Offers highly accurate readings tested across various devices and settings.

Highlights
  • 5-meter tape measure
  • Precision caliper mode
  • Measure to 0.1mm accuracy
  • Spirit level functionality
  • Accurate measurement testing
Read full description

Calipers lets you take measurements when you're on the go. For the big things, there's 5 meter tape measure. Simply place your iPhone on a surface so the ‘zero’ aligns with where you want to start your measurement. Next, place a finger near the bottom of your iPhone and slide your iPhone along the surface, keeping your finger still. Finally, when your finger reaches the top, repeat the process again until you’ve completed your measurement For the little things, the calipers mode will let you measure objects within a tenth of a millimeter. Simply place an object on the screen, and drag the top and bottom guides until they are just visible. To get really accurate readings, you can use the ‘plus’ and ‘minus’ buttons to move the guides closer or further apart by a 1/10th of a millimeter. 6 out of the top 10 free apps in this category are off by as much as 10% on the iPhone 12 & 13 Mini, or when some accessibility features are enabled. Since most people don't check their app against a ruler - we felt it was really important we did! This app has been throughly tested to ensure the measurements are accurate in every scenario.

About

Gridley

Easily create high-resolution photo grids from your images. Customize layouts, spacing, borders, and backgrounds with instant previews. Export your grids as high-quality images or PDFs.

Highlights
  • Create high-resolution photo grids
  • Customize spacing, borders, and backgrounds
  • Live preview of edits
  • Export as image or PDF
  • Combine up to 30 images (Pro)
  • Apply image effects
Features
Read full description

Gridley – Create Beautiful Photo Grids **Special Launch Pricing!** Get started with Gridley Pro at a special introductory rate: just $1.99 for the first month (regularly $2.99) or $12.99 lifetime. These prices available for a limited time! Gridley makes it simple to turn a few images—or a whole collection—into clean, high-resolution grids in seconds. Whether you’re a designer, photographer, or just organizing screenshots, Gridley helps you control spacing, layout, borders, backgrounds, and more. Preview changes instantly and export your grid as an image or PDF at full quality. --- Why Gridley Stands Out --- * Combine up to 5 images per grid for Free, or up to 30 with Gridley Pro. * Adjust spacing, borders, corners, and other grid settings * Live preview — see edits as you make them * Export sharp images or PDFs * Save or share as photos, PDFs, or zipped PDF files * Available in 8 languages: English, Japanese, Chinese, French, Hindi, German, Korean, Russian --- Powerful Layout Options --- * Set columns (images per row) * Customize margins, borders, corners, and fixed image sizes * Crop or stretch images to fit your grid * Change background and border colors with a full HSB color picker with opacity controls * Apply an image effect from options like Vibrant Pop, Warm, Dramatic, Pixelated, Color Leak, Black & White… and more. * Global opacity settings --- Designed for Flexibility --- * Export grids up to 1,000 px in Free mode and up to 15,000 px with Gridley Pro * Set all images to a fixed width or height, from 200 px up to 3,000 px * Sort images by date, name, or size * Responsive UI with smooth, animated controls * Choose from a variety of light and dark app themes to suit your style --- Go Gridley Pro Your Way --- * Work with up to 30 images per grid * Export at maximum resolution — up to 15,000 px * Unlock all image filters, including Pixelated effect * Access the full list of 15 app themes to fully customize your interface * Save grids as Photos, PDFs, or zipped PDFs * Access full control of all grid settings * Optionally remove the watermark * Upgrade with either a one-time Lifetime purchase or a flexible monthly subscription — choose what fits you best --- Perfect For --- * Designers previewing layouts * Quickly stitching photos together or consolidating multiple screenshots * Making collages, visual summaries, or storyboards * Students, bloggers, or teams organizing images efficiently * Photographers sharing polished sets or print-ready photo grids * Content creators making social posts or marketing visuals * Anyone who wants clean, high-resolution grids in seconds --- Download Gridley and start building your perfect grid today. --- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

Calipers Tape Measure4 screens
Gridley4 screens

Verdict

The call

The clearest difference is price: Gridley at Free against Calipers Tape Measure's $1.99. Gridley also leads on rating (5.0 vs 4.3) and review sentiment (100% vs 78%). Calipers Tape Measure's advantage is in-app purchases (none vs 2) and ratings volume (26 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

Gridley is free to download; Calipers Tape Measure costs $1.99 up front. Gridley sells 2 in-app purchases, starting at $2.99 per month. Calipers Tape Measure asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Gridley holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Calipers Tape Measure has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 78% of Calipers Tape Measure's written reviews are positive against 100% of Gridley's.

Scorecard6 real differences · 4 level
Calipers Tape Measure versus Gridley: the parameters behind the verdict, then further details
ParameterCalipers Tape MeasureGridley
Price$1.99Free — better
Rating4.3 (26 ratings)5.0 (3 ratings) — better
Positive reviews77.8% of reviews100.0% of reviews — better
Number of ratings26 — better3
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better17.6
Further details — not scored
Size6 MB17 MB
Age rating4+4+
DeveloperJacob ParkerEmerson Design

Customer experience

Calipers Tape Measure

All ratings26 ratings
Positive80.8%
Neutral3.8%
Negative15.4%
Written reviews18 reviews
Positive77.8%
Neutral5.6%
Negative16.7%

Gridley

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Calipers Tape Measure

No in-app purchases

2 purchases

Gridley

Subscriptions1
  • Gridley Pro (Subscription)$2.991 Month
One-time1
  • Gridley Pro$17.99

Questions

Is Calipers Tape Measure free?
Calipers Tape Measure costs $1.99, with no in-app purchases.
Is Gridley free?
Gridley is free to download, with in-app purchases available.
Which has better reviews, Calipers Tape Measure or Gridley?
Gridley is rated higher. Calipers Tape Measure averages 4.3 out of 5 from 26 ratings, while Gridley averages 5.0 from 3 ratings.
Do Calipers Tape Measure or Gridley have ads?
Neither Calipers Tape Measure nor Gridley shows ads.

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