# Wring — A gauge block stack calculator > A gauge block stack calculator (iPhone/iPad app by Hidde van Dijk.) - Source: https://appshunter.io/ios/app/wring/id6766030031 (this page in markdown: same URL + `.md`) - Developer: [Hidde van Dijk](https://appshunter.io/developer/1896169217) - Category: Utilities, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.6 · 40 MB - Languages: American English - Released: 2026-06-08 - Data updated: 2026-06-28 - User reviews in markdown: https://appshunter.io/ios/app/wring/id6766030031/reviews.md ## What is Wring? Wring is a modern, workshop-ready companion for anyone working with gauge blocks. Build accurate stacks in seconds, switch between metric and imperial sets, and choose stacking strategies that match your workflow. Whether you're on the shop floor, in a calibration lab, or teaching apprentices, Wring gives you fast, reliable results with a clean, high-contrast interface designed for real-world use. WHAT WRING DOES • Build precise gauge-block stacks instantly • Metric and imperial sets included • Smart stacking that prefers thicker blocks • Optional wear blocks for stack protection • Multiple measurement strategies • High-contrast, workshop-friendly design • Works offline, no network required FREE TIER Get started with the essentials: basic stacking from preset gauge-block sets, metric/imperial switching, and full offline use. No account, no sign-up, no ads. WRING PLUS Step up to larger sets and more control: • Stacks of up to 9 blocks • Larger gauge-block set library • Multiple measurement strategies • Per-block include / skip control WRING PRO Everything in Plus, plus the full professional workflow: • Fully customisable gauge-block sets • Wear block modelling and dedicated wear sets • Calibrated-deviation entry per block • Material selection, grade tolerances and thermal compensation • Projects with printable stack lists • Save and recall named stacks per project • Cross-device sync of sets, stacks, projects and rooms • CSV import / export of block sets • PDF export of single stacks and full project reports CROSS-DEVICE SYNC Pro users keep their custom sets, saved stacks, projects and rooms in sync across their own devices automatically, through Apple iCloud on iPhone and iPad (always on when iCloud is enabled for Wring), with no Kokoto account and no third-party server in between. PRIVACY Wring does not collect personal data. There are no analytics, no tracking identifiers and no advertising SDKs. Purchases are processed securely through the App Store. SAFETY Wring is a calculation aid. Always verify stacks with certified measurement tools before use in precision or safety-critical work. SUBSCRIPTION DETAILS Wring Plus and Wring Pro are available as monthly or yearly auto-renewing subscriptions, each with a 14-day free trial for eligible new subscribers. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple account settings. Read the full Privacy Policy and Terms of Use at https://www.kokoto.app/wring/ ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Plus Monthly | $8.99 | per month | | Pro Yearly | $79.99 | per year | | Plus monthly | $2.99 | per month | | Plus yearly | $17.99 | per year | ## Version history (last 2 releases) ### 1.0.1 — 2026-06-09 • Performance improvements for a smoother experience • Small UI refinements across the app • General fixes to keep everything running reliably ### 1.0 — 2026-06-08 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-28.*