The iPhone Duo gets a cockpit. • Open the Duo and a button at the top right brings the holdover time out into its own pane beside the questions. The range, the App Estimated time, the FAA recommendation and the running countdown all stay in view on one side while you answer and revise on the other — the inputs and the answer in one glance, with no scrolling between them. • Put that pane on the left or the right, whichever suits how you are holding it. It stays where you put it, including next time you open the app. • Hide it and the result drops back to the end of the question list, exactly as before. • The iPad does the same thing, for the same reason: there is room for both. Folded, the Duo is a phone and behaves like one — a single continuous scroll with the result at the end. Every iPhone now stays in portrait too, so the layout can't rearrange itself while it is clipped to a yoke or resting on your knee. Same tables as before: FAA and Transport Canada, 2026-2027 season, issued August 11, 2026. Same fluids, same results. Fly safe.

This update fixes one thing, and it matters. • The disclaimer screen. On some devices the "Agree" button could stay greyed out even after you had scrolled down and read every word — leaving no way into the app at all. The button now becomes available as soon as you reach the bottom of the text. If you opened the app and could not get past the disclaimer, this build clears it. Nothing else has changed: the same Winter 2026–2027 FAA and Transport Canada tables, the same fluids, the same results. Our thanks to the pilot who took the time to write in about this. A screen that won't let you in is also a screen you can't report a problem from, so that email is the only reason we found it. If something in the app ever looks wrong, please tell us. Fly safe.

• Winter 2026–2027 tables. Every holdover and allowance time now comes from the FAA and Transport Canada guidelines issued 11 August 2026. Many times are shorter than last season's and none are longer, so it's worth updating before your next departure. • New and withdrawn fluids. Added: LNT Solutions P250 and P450, MAX TECH MTL 4-EG and MTL 4-PG, MKS DevO COREICEPHOB Type I EG, Turbotect DF I, MAX TECH MTL EG-1 and MTL PG-1. AVIAFlight EG and six other fluids have been withdrawn by the publishers. If a fluid you had picked is no longer listed, the app tells you rather than quietly dropping it. • The note that applies to your reading. Chart notes are now shown for the exact cell your answers land on, not just the column — including the rule that no holdover time exists below −10 °C for freezing drizzle and light freezing rain, which the guidelines print on individual cells. • Type III speed category: "Not sure". The guidelines say to apply low speed test values when you can't establish which ramp test applies to your aircraft. You can now say so directly instead of guessing. Low speed publishes the same times where they overlap — what it changes is the coldest temperature the fluid can be used at. • Snowfall intensity is shown even when it's the reason there's no time. If prevailing visibility means the intensity reads heavy, the result now says so plainly. Plus accuracy and clarity work throughout. Fly safe.

• In-app notices. Holdover Calculator can now show the occasional important notice — app updates and time-critical information — right in the app, as a card you can dismiss. They're pulled from a public file: no account, no tracking. Revisit past notices anytime from the new Messages item in the ••• menu, and turn them off in Settings. Critical safety notices always show. • Support & Feedback, redesigned. Reaching us now has its own menu item — write a note, attach a screenshot or two, and your report automatically includes a summary of what you changed this session, so we can help faster. Sends by email or the share sheet; no account required. Plus reliability and clarity improvements throughout. Fly safe.

Version 2.1.1 • In-app notices. Holdover Calculator can now show the occasional important notice — app updates and time-critical information — right in the app, as a card you can dismiss. They're pulled from a public file: no account, no tracking. Revisit past notices anytime from the new Messages item in the ••• menu, and turn them off in Settings. Critical safety notices always show. Plus reliability and clarity improvements throughout. Fly safe. PRIOR Version 2.1 • Organization deployment for flight departments. Holdover Calculator can now be licensed across a managed fleet through Apple Business Manager and MDM — no per-device Apple Account or App Store sign-in required. Contact us to set it up. • Read it at a glance. Tap any orange advisory note — or any setting's description — to enlarge it in a comfortable card sized for reading-distance glasses. Drag down or tap Done to dismiss. • Cockpit Sync now correctly identifies Mac devices in the nearby-pilots list (they previously appeared as "iPad"). • Settings and Help no longer close on an accidental swipe — tap Done to dismiss, so a long scroll isn't lost. • Includes the 2.0.1 fix for restoring an active subscription on a new device.

Version 2.1 • Organization deployment for flight departments. Holdover Calculator can now be licensed across a managed fleet through Apple Business Manager and MDM — no per-device Apple Account or App Store sign-in required. Contact us to set it up. • Read it at a glance. Tap any orange advisory note — or any setting's description — to enlarge it in a comfortable card sized for reading-distance glasses. Drag down or tap Done to dismiss. • Cockpit Sync now correctly identifies Mac devices in the nearby-pilots list (they previously appeared as "iPad"). • Settings and Help no longer close on an accidental swipe — tap Done to dismiss, so a long scroll isn't lost. • Includes the 2.0.1 fix for restoring an active subscription on a new device. Plus reliability and clarity improvements throughout. Fly safe.

This update fixes a subscription-restore issue and includes everything from the Version 2 redesign. FIXED IN 2.0.1 • Restore Purchases could fail to restore an active subscription on a new device — you'd enter your Apple ID and land back on the paywall with no feedback. Tapping Restore now shows what's happening and reliably restores an existing subscription. VERSION 2 — A complete redesign for iOS 26. This release rebuilds Holdover Calculator from scratch around Apple's new Liquid Glass design language. Every screen, every input, every result is new — but the data and the regulatory guidance behind it remain the same. WHAT'S NEW • Brand-new interview flow. Weather, Fluid, and Aircraft are now three clearly-separated sections with floating section pills you can tap to jump between. Pre-set your defaults in Settings and you'll answer only the questions that actually need answering for a given operation. • Live weather autofill. Tap "Use Nearby" and the app pulls the closest METAR from the NOAA Aviation Weather Center. Search any ICAO directly, or enter the conditions manually — the app guides you to whichever source is appropriate for the conditions. • Chart Notes, surfaced. A new Chart Notes panel shows every published note for the table you're using. Notes whose conditions are currently active (cold-soaked wings, ice-pellet limits, OAT thresholds, etc.) are highlighted so you see what matters first. • App Estimated and FAA Recommended, side by side. Every range now shows both the FAA Recommended low end and a continuously-interpolated App Estimated time within the range — pick whichever fits the operation. • Lock Screen Live Activity. The countdown timer now runs as a Live Activity. Glance at your Lock Screen for the remaining time and exact wall-clock end. Above an hour the timer reads in hours and minutes; below an hour, minutes and seconds. • Ice Pellet allowance and the 90-minute takeoff window. Allowance lookups for ice pellets and freezing precipitation are first-class — the app tracks the 90-minute takeoff window after precipitation stops and shows whether takeoff is still permitted. • Active Frost handling. Between roughly −5 °C and +10 °C the app prompts for active frost and switches to the Active Frost allowance when applicable. • Apple Watch companion. Run the timer from your wrist. • Cockpit Sync. Share one running holdover timer with up to four pilots in the same cockpit over a direct, local connection — no account, no internet. The captain approves every change, and the link re-establishes itself automatically if a device locks or briefly drops out of range. • Time display options. Local or Zulu, 12- or 24-hour clock — set once in Settings. • Send Feedback / Get Help from the toolbar Menu now prefills the support email with your app version, iOS version, and device model — no more typing those out. For pilots upgrading from version 1: your subscription carries over. The data tables and regulatory guidance are unchanged. The interface is what's different — and we think you'll find it considerably faster from question to answer.

VERSION 2 — A complete redesign for iOS 26. This release rebuilds Holdover Calculator from scratch around Apple's new Liquid Glass design language. Every screen, every input, every result is new — but the data and the regulatory guidance behind it remain the same. WHAT'S NEW • Brand-new interview flow. Weather, Fluid, and Aircraft are now three clearly-separated sections with floating section pills you can tap to jump between. Pre-set your defaults in Settings and you'll answer only the questions that actually need answering for a given operation. • Live weather autofill. Tap "Use Nearby" and the app pulls the closest METAR from the NOAA Aviation Weather Center. Search any ICAO directly, or enter the conditions manually — the app guides you to whichever source is appropriate for the conditions. • Chart Notes, surfaced. A new Chart Notes panel shows every published note for the table you're using. Notes whose conditions are currently active (cold-soaked wings, ice-pellet limits, OAT thresholds, etc.) are highlighted so you see what matters first. • App Estimated and FAA Recommended, side by side. Every range now shows both the FAA Recommended low end and a continuously-interpolated App Estimated time within the range — pick whichever fits the operation. • Lock Screen Live Activity. The countdown timer now runs as a Live Activity. Glance at your Lock Screen for the remaining time and exact wall-clock end. Above an hour the timer reads in hours and minutes; below an hour, minutes and seconds. • Ice Pellet allowance and the 90-minute takeoff window. Allowance lookups for ice pellets and freezing precipitation are first-class — the app tracks the 90-minute takeoff window after precipitation stops and shows whether takeoff is still permitted. • Active Frost handling. Between roughly −5 °C and +10 °C the app prompts for active frost and switches to the Active Frost allowance when applicable. • Apple Watch companion. Run the timer from your wrist. • Time display options. Local or Zulu, 12- or 24-hour clock — set once in Settings. • Send Feedback / Get Help from the toolbar Menu now prefills the support email with your app version, iOS version, and device model — no more typing those out. For pilots upgrading from version 1: your subscription carries over. The data tables and regulatory guidance are unchanged. The interface is what's different — and we think you'll find it considerably faster from question to answer.

Updated for 2025-2026 FAA and Transport Canada holdover documents.

Fixed a bug where the precipitation type is not detected from a retrieved METAR.

Updated data for the 2024-2025 winter season.  Bug fixes. Improved automatic METAR interpretation.

Updated data for the 2023-2024 winter season. Squashed a few bugs, and improved user interface.

Corrected display issue on iPhones.  Added one week free trial before the annual subscription begins. New subscribers can try the app for a week. Cancel anytime before the promotional period ends.

Fixed display bug on iPad.

Data updated for FAA and Transport Canada Holdover Time Guidelines Winter 2022-2023 information.

Updated with 2021-2022 FAA and Transport Canada data

• Updated with 2020-2021 FAA and Transport Canada data • Bug fixes • Fixed display issues

● 2019-2020 FAA and Transport Canada data ● You don't think you have bugs? Guess again. Bugs are everywhere. We squashed a few little ones with this version. Give us feedback if you experience any.

● 2018-2019 FAA and Transport Canada data ● Here's the deal folks. Bugs are everywhere. We squashed a few little ones with this version. Give us feedback if you experience any. ● Fixed issue where app would occasionally crash when attempting to select a visibility. ● Fixed issue where nearby METAR may not be retrieved

● 2018-2019 data ● Bug fixes

• 2017-2018 Holdover Data • Here's the deal folks. We make little changes to the app in an effort to make sure your experience is the best it can be.Most of the time these bug fixes have nothing to do with the accuracy of the app. The changes are items you may not even notice, but we know they are there, so they get fixed • Annual subscription is now an annual auto-renewing • Bug fixes

• Added Transport Canada holdover data • Improved pop-up messages when OAT is below LOUT to inform user of ways to improve LOUT • Times derived from FAA and Transport Canada 2016-2017 Holdover Chart Data • The year of FAA and Transport Canada Holdover Time Guidelines used for calculations is now specified on the Info view (Select the menu button and then 'Info') • Improved METAR evaluation to check for secondary precipitation types and present user with most restrictive precipitation • Improved METAR evaluation when temperature is extremely low and dew point is not provided • Display Bug fixes

• Improved pop-up messages when OAT is below LOUT to inform user of ways to improve LOUT • 2016-2017 Holdover Chart Data • The year of FAA Holdover Time Guidelines used for calculations are now specified on the Info view (Select the menu button and then 'Info') • Improved METAR evaluation to check for secondary precipitation types and present user with most restrictive precipitation • Bug fixes

• 2016-2017 Holdover Chart Data • The year of FAA Holdover Time Guidelines used for calculations are now specified on the Info view (Select the menu button and then 'Info') • Performance enhancements to the "Automatic Location Based METAR Search" option • Improved interface during weather searches • Added 'Cancel' button in the event that weather searches hang due to poor data connection • Bug fixes

• 2016-2017 Holdover Chart Data • Bug fixes