Comparison

MetalCalc vs Screw Size Drill Bit Chart

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

Head to head
About

MetalCalc

Features
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MetalCalc – Multiway — быстрый калькулятор металлопроката, который считает вес, объём, длину и стоимость “в любую сторону”. Вводите то, что знаете (размеры, вес, длину, плотность или цену) — приложение мгновенно рассчитывает остальное. Что умеет Мульти-режим расчётов: длина → вес, вес → длина, размеры → объём/вес, цена за кг/м → итоговая стоимость и наоборот. Популярные формы проката: лист/плита, круг/пруток, квадрат, труба/профиль, уголок, швеллер, двутавр и др. Материалы и плотность: готовые пресеты (сталь, нержавейка, алюминий, медь, латунь и т.п.) + своя плотность для любых сплавов. Единицы измерения: мм/см/м, кг/т, м²/м³ — с удобными пересчётами. Результат в один тап: быстро копируйте значения и используйте в смете/заказе. Офлайн: работает без интернета — удобно на складе, в цеху и на объекте. Кому полезно Металлообработка, сварка, стройка, инженерные расчёты, закупки и сметы — когда нужно быстро понять сколько весит, сколько метров получится или во сколько обойдётся партия металла. Важно Расчёты дают оценку и зависят от реальных допусков, марки сплава и фактических размеров.

About

Screw Size Drill Bit Chart

Features
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Which drill bit for a #8 screw in hardwood? ScrewGuide answers in two taps — the complete screw, bolt and drill-bit chart with the exact pilot hole for the material in front of you, fully offline. Printed charts give you one number and hope you guessed the material right. ScrewGuide is material-aware: pick a screw, pick softwood, hardwood, MDF/chipboard, drywall, sheet metal or plastic, and it works out the pilot, clearance and countersink diameter for that exact combination — then names the nearest real drill bit you actually own, in millimetres or inches. WHAT YOU GET - The right pilot hole every time, calculated per material, so boards stop splitting and screws stop stripping - 20 screw sizes cross-referenced: metric M2-M12, US gauge #4-#14 and tapered wood screws, with major and minor diameter, thread pitch, TPI, head diameter and typical lengths - A full 68-bit drill chart in one place: metric, fractional, number and letter bits with decimal and millimetre equivalents - Measured something and don't know what it is? Dial in a diameter and get the nearest screw and the nearest drill bit instantly - A metric tap-drill chart, so you can thread a hole without hunting a reference online - Head styles and drive types decoded — Phillips, Pozidriv, Square/Robertson, Torx and hex — plus why pilot holes work at all PERFECT FOR - Woodworkers and carpenters who refuse to split another board - DIYers assembling flat-pack, hanging shelves or mounting a TV - Makers and 3D-printing hobbyists living in M3 and M4 hardware - Trades and hobby mechanics switching between metric and imperial on the same job WHY NOT JUST GOOGLE IT? Because the garage has no signal, your hands are dirty and the search results argue with each other. ScrewGuide keeps every number on the device, opens instantly, and gives one clear answer per material instead of ten forum opinions. Save the sizes you use most and they are one tap away next time. PRIVACY No account, no sign-up, no ads, no tracking, no internet connection required. Your saved sizes and unit preference stay on your iPhone. FULL ACCESS Material-aware pilot, clearance and countersink sizing, the complete drill-bit chart, the tap-drill chart and the size finder unlock with full access. Choose a weekly or yearly subscription, or pay once for lifetime access — one payment, no renewal. Ten common screw sizes stay browsable for free so you can try the reference first. Open ScrewGuide before the drill comes out and get the hole right the first time. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

Screenshots

MetalCalc3 screens
Screw Size Drill Bit Chart4 screens

Verdict

The call

The clearest difference is in-app purchases: MetalCalc at none against Screw Size Drill Bit Chart's 3. On price, update cadence, ads and device support 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

Both are free to download. Screw Size Drill Bit Chart sells 3 in-app purchases, starting at $2.99 per 7 days. MetalCalc asks for nothing beyond the download.

UpkeepUpdate frequency

MetalCalc ships an update every 3 weeks, Screw Size Drill Bit Chart monthly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 5 level
MetalCalc versus Screw Size Drill Bit Chart: the parameters behind the verdict, then further details
ParameterMetalCalcScrew Size Drill Bit Chart
PriceFreeFree
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad — betteriPhone
Requires iOS18.217.0 — better
Further details — not scored
Size5 MB23 MB
Age rating4+4+
DeveloperAliaksandr BarautsouPhuc Pham

In-app purchases

None

MetalCalc

No in-app purchases

3 purchases

Screw Size Drill Bit Chart

Subscriptions2
  • Countersink Pro, Weekly$2.997 Days
  • Thread Finder, Yearly$14.991 Year
One-time1
  • Full Fastener Guide, One-Time$29.99

Questions

Is MetalCalc free?
MetalCalc is free to download, with no in-app purchases.
Is Screw Size Drill Bit Chart free?
Screw Size Drill Bit Chart is free to download, with in-app purchases available.
Do MetalCalc or Screw Size Drill Bit Chart have ads?
Neither MetalCalc nor Screw Size Drill Bit Chart shows ads.
Which is updated more often, MetalCalc or Screw Size Drill Bit Chart?
MetalCalc ships an update every 3 weeks, and Screw Size Drill Bit Chart monthly. Most recently, MetalCalc was updated on October 27, 2026 and Screw Size Drill Bit Chart on October 31, 2026.

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