Comparison

Fast Wiper vs Bolt Torque Spec Calc

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

Head to head
About

Fast Wiper

Features
Read full description

Fast Wiper Mobile is a simple, powerful tool designed to help you clean up unwanted data and better protect your privacy on your iPhone. With just a few taps, you can quickly wipe selected content so it cannot be easily recovered. Use Fast Wiper Mobile when you are preparing to sell, give away, or temporarily share your device, or whenever you want extra peace of mind that sensitive information has been properly erased. Key features: Securely wipe selected data to reduce the chance of recovery Fast, easy-to-use interface designed for everyone Helpful progress indicators so you always know what is happening Designed for users who care about privacy and storage hygiene Fast Wiper Mobile focuses on a clean, clear experience so you can complete sensitive cleanup tasks with confidence. It is an ideal companion for users who regularly manage files, screenshots, or other content that they do not want to leave behind. Note: Due to iOS security restrictions, the app can only operate within the areas allowed by the system and cannot access or delete data from other apps.

About

Bolt Torque Spec Calc

Calculates bolt torque specifications for various SAE and metric sizes and grades. Provides results in both ft-lb and N·m, accounting for dry or lubricated conditions. Works offline without ads or subscriptions.

Highlights
  • SAE and Metric bolt specifications
  • 28 SAE and 17 Metric sizes
  • Dry vs. Lubricated multiplier
  • Torque in ft-lb and N·m
  • Offline functionality
  • Formula and K factor shown
Features
Read full description

Built for mechanics, millwrights, and equipment installers who need bolt torque on the bench - not a desktop tool. WHAT IT DOES Looks up torque values for standard bolt sizes and grades using the T = K x D x F formula with K = 0.20. SAE grades 2, 5, and 8 across 28 sizes from #6-32 to 1-1/2 inch. Metric classes 4.6, 8.8, 10.9, and 12.9 across 17 sizes from M3 to M36. Dry vs. lubricated multiplier applied to the result. INPUTS - Standard: SAE or Metric - Bolt size (28 SAE or 17 metric sizes available) - Bolt grade or class - Lube condition: Dry or Lubricated RETURNS - Torque in ft-lb - Torque in N·m CALCULATION BASIS - Torque formula: T = 0.20 x D x F - Preload F = 75% of proof strength times tensile stress area - Lubricated multiplier: 0.75 times the dry value WHY THIS APP, NOT THE FREE ONES - Math is shown - formula and assumed K factor visible, not hidden. - 45 size and grade combinations covered in one tap. - Works offline - shop floor, field repair, no Wi-Fi. Always available. - No login. No ads. No telemetry. No subscription. PRICING $1.99. Pay once, own it. Lifetime access on iPhone, iPad, and Mac via Family Sharing. NOT A SUBSTITUTE FOR Manufacturer-specified torque values for safety-critical fasteners. Calibrated wrench certificates. Specific K-factor adjustments for anti-seize, plating, or galvanized threads - this app uses K = 0.20 for both dry and lubricated, with the 0.75x multiplier as the only lube adjustment. Verify against the OEM tightening spec for the specific application.

Screenshots

Fast Wiper3 screens
Bolt Torque Spec Calc3 screens

Verdict

The call

The clearest difference is update cadence: Bolt Torque Spec Calc at every 3 weeks against Fast Wiper's every 9 months. Bolt Torque Spec Calc also leads on price ($4.99 vs $5.99). Fast Wiper's advantage is iOS requirement (15.6 vs 17.0). On ads, in-app purchases 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

Fast Wiper costs $5.99 and Bolt Torque Spec Calc $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fast Wiper ships an update every 9 months, Bolt Torque Spec Calc every 3 weeks. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Fast Wiper versus Bolt Torque Spec Calc: the parameters behind the verdict, then further details
ParameterFast WiperBolt Torque Spec Calc
Price$5.99$4.99 — better
Rating—3.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 9 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size1 MB1 MB
Age rating4+4+
Developer论 李Shanghai Sheyuan Network Technology Co., Ltd.

In-app purchases

None

Fast Wiper

No in-app purchases

None

Bolt Torque Spec Calc

No in-app purchases

Questions

Is Fast Wiper free?
Fast Wiper costs $5.99, with no in-app purchases.
Is Bolt Torque Spec Calc free?
Bolt Torque Spec Calc costs $4.99, with no in-app purchases.
Do Fast Wiper or Bolt Torque Spec Calc have ads?
Neither Fast Wiper nor Bolt Torque Spec Calc shows ads.
Which is updated more often, Fast Wiper or Bolt Torque Spec Calc?
Fast Wiper ships an update every 9 months, and Bolt Torque Spec Calc every 3 weeks. Most recently, Fast Wiper was updated on October 14, 2026 and Bolt Torque Spec Calc on October 28, 2026.

Other comparisons