ShrinkPic Pro vs Graincount

ShrinkPic is the fastest way to free up storage on your iPhone. Compress hundreds of photos in seconds - all on your device, no uploads, no subscriptions. BATCH COMPRESSION Select up to 500+ photos and compress them all at once. No crashes, no limits for Pro users. MULTIPLE QUALITY LEVELS Choose from Low, Medium, High, or Best quality. See estimated file size reduction before you start. SMART STORAGE ANALYSIS See exactly where your storage goes - screenshots, camera photos, and more. Know what to compress first. BEFORE AND AFTER COMPARISON Visually compare original and compressed photos side by side. See quality and size difference at a glance. DELETE ORIGINALS Optionally delete original photos after compression to instantly free up space. 100% PRIVATE All processing happens on your device. Your photos never leave your iPhone. No servers, no tracking, no analytics. ONE-TIME PURCHASE No subscription required. Upgrade to Pro once and get unlimited compression forever. FREE TIER: - Compress up to 5 photos per day - All quality levels and formats - Storage analysis dashboard PRO UPGRADE (One-time $2.99): - Unlimited daily compression - Batch process 500+ photos - Delete originals after compression - All future features included ShrinkPic supports JPEG, HEIC, and PNG output formats. Perfect for clearing out old screenshots, reducing camera roll storage, and keeping your iPhone running smoothly. Download ShrinkPic and reclaim your storage today!

Graincount: Microstructure is a planar grain-size worksheet that keeps a human at the eyepiece. It opens on a labeled synthetic worked example, so the whole workflow is visible before you import anything of your own. Does it segment grains for me? No, and that is deliberate. You import a micrograph as immutable evidence, then place, classify, and weight every intercept crossing or grain tally yourself; the app's job is geometry, arithmetic, and record-keeping, never automated detection. How do my marks become a grain size? A two-point calibration against a feature of known length (nm, um, or mm) fixes the scale. Accepted marks on drawn intercept lines pool into a Heyn-style mean intercept, while counts inside planimetric frames yield grains per square millimetre and an equivalent-circle diameter, with sample standard deviation reported across fields. Will the number survive an audit? Every commit becomes an immutable revision: the snapshot is canonicalized, hashed with SHA-256, and chained to its parent. You can inspect any revision's diff, restore an older one as a new revision, and export the worksheet as a project package, CSV, or PDF that states its own limitations. Everything computes and stays on your own device, and one purchase covers the app for good - no subscription meter running.