--- title: "TallyRig: Well Control Calc - Reviews, Revenue and Downloads in United States | Apple App Store" description: "17 oilfield & drilling calculators — with a digital tally-book history. TallyRig is a focused, field-ready calculator set for drilling and well control workflows. Run the essentials fast, save every " --- # TallyRig: Well Control Calc — United States > Oilfield Calcs + Saved History ![TallyRig App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/0e/9a/61/0e9a615f-9a2a-4be5-28a0-5792f322e568/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [嘉炜 丰](https://apptail.io/developer/developer-zAIg) **Category:** Utilities **Rating:** 4.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.andyfeng.tallyrig **Store:** Apple App Store **Country:** United States **Version:** 1.2.0 (released 2026-09-08) **Original Release:** 2026-03-09 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6758645641) **AppTail Page:** [https://apptail.io/app/tallyrig-well-control-calc-fDPz/united-states](https://apptail.io/app/tallyrig-well-control-calc-fDPz/united-states) ## TallyRig Description 17 oilfield & drilling calculators — with a digital tally-book history. TallyRig is a focused, field-ready calculator set for drilling and well control workflows. Run the essentials fast, save every result, and share a clean record when you need it. DESIGNED FOR THE RIG • Sunlight Mode: high-contrast screens you can read outside • Glove-friendly: big targets, minimal tapping • Offline-first: works without a signal • Trust the math: review the formula / show-work for each result 17 FIELD CALCULATORS, ORGANIZED BY CATEGORY • Well Control: Kill Sheet (Wait & Weight), Kick Tolerance, Gas Migration, Trip Fill, BOP Check (API Std. 53) • Pressure: Hydrostatic, EMW from Pressure, ECD • Fluids: Mud Weight-Up (barite), Slug, Cementing • Tubulars: Pipe Tally, Buoyancy, Capacity, Stuck Pipe (Free Point) • Hydraulics: Pump Output, Flow, Annular Velocity, Bottoms-Up • Utilities: Oilfield Unit Converter FIND TOOLS FAST Search, category filters, and a drag-to-arrange dashboard so your most-used calculators are always on top. HISTORY THAT'S ACTUALLY USEFUL • Save any calculation to a clean history timeline • Share a result card or a history record with your team • Sync across devices via iCloud (when enabled) UNITS Switch between Imperial and Metric (SI) where supported. Languages - Full in-app translation in English, Português (Brasil) and Español — including every calculator, result view and formula label. Switch any time in Settings → Language. WHO IT'S FOR Drilling engineers, toolpushers, drillers, mud engineers, wellsite supervisors, and well control trainees who want a fast, reliable pocket reference. IMPORTANT TallyRig is a calculation aid for reference and cross-checking. Always verify inputs and outputs and follow your company procedures and training. ## TallyRig Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/7c/40/49/7c404936-280f-098b-f740-10a0a18da0dc/01_overview.png/1284x2778.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/13/65/8f/13658f9f-a103-ff44-c447-2a36e23209cd/02_kick_tolerance.png/1284x2778.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b9/5a/66/b95a66c4-9622-d548-5b69-1e52a0065e84/03_show_formula.png/1284x2778.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ea/9a/b3/ea9ab3c8-be10-67f1-8109-39e8091bdfb3/04_glove_friendly.png/1284x2778.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/39/94/3f/39943fcc-f9e5-154c-9288-386a32cb4c38/05_find_fast.png/1284x2778.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d0/b3/90/d0b39062-e0eb-9c4a-fa32-3ad3ca0ec316/06_arrange.png/1284x2778.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9a/46/4e/9a464e5f-fbc4-2c11-487b-160cb98cb6bb/07_units.png/1284x2778.png) ## TallyRig Rating Breakdown in United States - 5 stars: 0 (0%) - 4 stars: 1 (100%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## TallyRig Available In - [United States](https://apptail.io/app/tallyrig-well-control-calc-fDPz/united-states) - [Switzerland](https://apptail.io/app/tallyrig-well-control-calc-fDPz/switzerland) - [Colombia](https://apptail.io/app/tallyrig-well-control-calc-fDPz/colombia) - [Ecuador](https://apptail.io/app/tallyrig-well-control-calc-fDPz/ecuador) - [Spain](https://apptail.io/app/tallyrig-well-control-calc-fDPz/spain) - [Finland](https://apptail.io/app/tallyrig-well-control-calc-fDPz/finland) - [France](https://apptail.io/app/tallyrig-well-control-calc-fDPz/france) - [Jordan](https://apptail.io/app/tallyrig-well-control-calc-fDPz/jordan) - [South Korea](https://apptail.io/app/tallyrig-well-control-calc-fDPz/south-korea) - [Sri Lanka](https://apptail.io/app/tallyrig-well-control-calc-fDPz/sri-lanka) - [Luxembourg](https://apptail.io/app/tallyrig-well-control-calc-fDPz/luxembourg) - [Malta](https://apptail.io/app/tallyrig-well-control-calc-fDPz/malta) - [Nigeria](https://apptail.io/app/tallyrig-well-control-calc-fDPz/nigeria) - [Norway](https://apptail.io/app/tallyrig-well-control-calc-fDPz/norway) - [Peru](https://apptail.io/app/tallyrig-well-control-calc-fDPz/peru) - [Russia](https://apptail.io/app/tallyrig-well-control-calc-fDPz/russia) - [Saudi Arabia](https://apptail.io/app/tallyrig-well-control-calc-fDPz/saudi-arabia) - [Belarus](https://apptail.io/app/tallyrig-well-control-calc-fDPz/belarus) - [Vietnam](https://apptail.io/app/tallyrig-well-control-calc-fDPz/vietnam) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*