Comparison

DIY Sizer vs Screw Size Drill Bit Chart

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

Head to head
About

DIY Sizer

Features
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DIY Sizer is the all-in-one app for recording measurements and calculating materials for your DIY projects. [Dimension Notes] Save measurements per project. Width, height, and depth are stored to the millimeter โ€” easy to check while shopping at the hardware store. [Material Calculator] Automatically calculates how much lumber or plywood you need based on dimensions. See cut counts and offcuts at a glance so you buy exactly what you need. [Project Management] Group measurements and materials per project (shelves, tables, bookcases). Run multiple DIY projects in parallel. [Unit Conversion] Switch between millimeters, centimeters, and inches โ€” handy when working from overseas blueprints. [Photo Notes] Attach a photo to each measurement so you remember exactly where it came from. From first-time DIYers to experienced makers โ€” speed up every workshop session.

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 โ€” 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 โ€” 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 โ€” Phillips, Pozidriv, Square/Robertson, Torx and hex โ€” 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 โ€” 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

DIY Sizer3 screens
Screw Size Drill Bit Chart4 screens

Verdict

The call

The clearest difference is in-app purchases: DIY Sizer at none against Screw Size Drill Bit Chart's 3. DIY Sizer also leads on update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

DIY Sizer ships an update every 2 weeks, Screw Size Drill Bit Chart monthly. The most recent releases landed on September 20, 2026 and September 18, 2026 respectively.

Scorecard2 real differences ยท 4 level
DIY Sizer versus Screw Size Drill Bit Chart: the parameters behind the verdict, then further details
ParameterDIY SizerScrew Size Drill Bit Chart
PriceFreeFree
Update frequencyEvery 2 weeks โ€” betterMonthly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.017.0
Further details โ€” not scored
Size8 MB23 MB
Age rating4+4+
DeveloperSANWA Inc.Phuc Pham

In-app purchases

None

DIY Sizer

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 DIY Sizer free?
DIY Sizer 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 DIY Sizer or Screw Size Drill Bit Chart have ads?
Neither DIY Sizer nor Screw Size Drill Bit Chart shows ads.
Which is updated more often, DIY Sizer or Screw Size Drill Bit Chart?
DIY Sizer ships an update every 2 weeks, and Screw Size Drill Bit Chart monthly. Most recently, DIY Sizer was updated on September 20, 2026 and Screw Size Drill Bit Chart on September 18, 2026.

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