Comparison

Spill Calc Lite vs Integrity Assured

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

Head to head
About

Spill Calc Lite

Quickly estimate surface spill volumes in the field with this tool. Calculate for square, rectangular, circular, and triangular spills, with options for tank displacement. Features a clean interface and helpful library for efficient on-site calculations.

Highlights
  • Estimate surface spill volumes
  • Calculate for square, rectangular, circular, and triangular spills
  • Optional tank displacement calculation
  • Immediate results in barrels and gallons
  • Clean and modern interface
  • Easy-to-use Help Library
Features
Read full description

Spill Calc Lite is a fast, reliable tool built for estimating surface spill volumes in the field. Quickly calculate spill volumes by selecting a shape, entering your measurements, and getting immediate results in barrels and gallons—right when you need them most. Supported spill types: • Square and rectangular spills • Circular spills • Triangular spills Rectangle and square calculations also include optional tank displacement, helping you account for real-world conditions on location. Designed with a clean, modern interface and an easy-to-use Help Library, Spill Calc Lite keeps calculations simple, clear, and efficient—so you can focus on the job at hand. Need more advanced features? Upgrade to Spill Calc Pro to save calculations, organize multiple spill sections, and export your data.

About

Integrity Assured

Features
Read full description

Integrity Assured Mobile app is a new gen software that contains and stores large capacities of engineering calculations with an extensive flange type and material database. Integrity Assured Mobile app provides bolt loads and tool pressures on a range of flanged joints and clamps connections. When used with the correct assembly and built-in tightening procedures, the recommended bolt load values are independently verified to deliver leak-free joints.

Screenshots

Integrity Assured4 screens

Verdict

The call

Spill Calc Lite and Integrity Assured are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Spill Calc Lite ships an update every 16 months, Integrity Assured every 20 months. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

ScorecardNo meaningful differences
Spill Calc Lite versus Integrity Assured: the parameters behind the verdict, then further details
ParameterSpill Calc LiteIntegrity Assured
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 16 months — betterEvery 20 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size1 MB173 MB
Age rating4+4+
DeveloperKelly GayneauxEnerpac

In-app purchases

None

Spill Calc Lite

No in-app purchases

None

Integrity Assured

No in-app purchases

Questions

Is Spill Calc Lite free?
Spill Calc Lite is free to download, with no in-app purchases.
Is Integrity Assured free?
Integrity Assured is free to download, with no in-app purchases.
Do Spill Calc Lite or Integrity Assured have ads?
Neither Spill Calc Lite nor Integrity Assured shows ads.
Which is updated more often, Spill Calc Lite or Integrity Assured?
Spill Calc Lite ships an update every 16 months, and Integrity Assured every 20 months. Most recently, Spill Calc Lite was updated on October 20, 2026 and Integrity Assured on October 17, 2026.

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